Plant Ecology and Evolution最新文献

筛选
英文 中文
Reassessment of morphological species delimitations in the Cyperus margaritaceus-niveus complex using morphometrics 用形态计量学重新评价玛格丽塔塞-尼维乌斯复合体的形态种划分
IF 1.1 4区 生物学
Plant Ecology and Evolution Pub Date : 2023-03-22 DOI: 10.5091/plecevo.97453
Martin Xanthos, S. Mayo, I. Larridon
{"title":"Reassessment of morphological species delimitations in the Cyperus margaritaceus-niveus complex using morphometrics","authors":"Martin Xanthos, S. Mayo, I. Larridon","doi":"10.5091/plecevo.97453","DOIUrl":"https://doi.org/10.5091/plecevo.97453","url":null,"abstract":"Background and aims – The Cyperus margaritaceus-niveus complex is a group of ten tropical species from sub-Saharan Africa and Madagascar: C. karlschumannii, C. kibweanus, C. ledermannii, C. margaritaceus, C. niveus, C. nduru, C. obtusiflorus, C. somaliensis, C. sphaerocephalus, and C. tisserantii. They are characterised by a capitate head of white-yellow spikelets and modified culm bases and recent molecular analysis puts them in a distinct clade. The group lacks a modern taxonomic revision, and the taxa described in the Flora treatments of the past 50 years differ considerably in their circumscription. In this study, morphometric analyses are used to test species limits to establish more stable morphological delimitations of the taxa.\u0000 Material and methods – An examination of 15 morphological characters on 489 herbarium specimens was carried out and the data was analysed using Principal Component Analysis (PCA), Linear Discriminant Analysis (LDA) with cross-validation, and Classification and Regression Tree (CART) analysis. Cyperus kibweanus was not further considered due to lack of material.\u0000 Key results – Both PCA and LDA showed varying degrees of overlap in the nine remaining taxa, with no single group clearly separating in multivariate space. However, cross-validation clearly showed C. margaritaceus as a distinct entity despite its overwhelming presence in the PCA. Both LDA and CART failed to separate C. niveus as a distinct group as its specimens were dispersed among the other groups. Differing results were obtained for other taxa depending on the type of analysis. Cyperus margaritaceus, C. nduru, and C. sphaerocephalus were divided into two groups by CART but re-examination of the specimens does not definitively support the idea that these infraspecific groups represent separate taxa.\u0000 Conclusions – The results show that eight morphospecies are recognised by LDA and six morphospecies by CART. Characters used to separate the taxa in Flora treatments scored high loadings in the analysis showing their high taxonomic utility value. The methods used can be applied to resolving other complexes in the Cyperaceae.","PeriodicalId":54603,"journal":{"name":"Plant Ecology and Evolution","volume":" ","pages":""},"PeriodicalIF":1.1,"publicationDate":"2023-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48232189","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Sylvainia, a new monospecific genus within the subtribe Cephalanthinae (Rubiaceae, Naucleeae) Sylvainia,一个新的单种属,隶属于茜草科牛膝亚科
IF 1.1 4区 生物学
Plant Ecology and Evolution Pub Date : 2023-03-15 DOI: 10.5091/plecevo.90423
María Florencia Romero, Ana Maria Gonzalez, R. M. Salas
{"title":"Sylvainia, a new monospecific genus within the subtribe Cephalanthinae (Rubiaceae, Naucleeae)","authors":"María Florencia Romero, Ana Maria Gonzalez, R. M. Salas","doi":"10.5091/plecevo.90423","DOIUrl":"https://doi.org/10.5091/plecevo.90423","url":null,"abstract":"Background and aims – The genus Cephalanthus belongs to the tribe Naucleeae together with 26 other genera. Members of Cephalanthus mainly grow in temperate and subtropical wetlands in the Americas and Asia, but there is a single African species that is associated with forest margins and rocky outcrops in moist temperate grasslands. The genus comprises six species and was historically known to have species with a markedly disjunct distribution: three species are from the Americas: C. glabratus, C. occidentalis, and C. salicifolius; two species are from tropical Asia: C. angustifolius and C. tetrandrus, and one species is from tropical Africa: C. natalensis. Recent molecular phylogenetic studies have supported the monophyly of the genus, however, most of the morphological synapomorphies are absent in the only African species, which is sister to the remaining species of the genus. This work aims to provide a short taxonomic revision of the genus Cephalanthus, taking into consideration morphological aspects previously underestimated or not considered, and to describe a new monospecific genus based on comparative morphological analysis.\u0000 Material and methods – Vegetative and reproductive material from all the species of Cephalanthus were analysed following conventional taxonomy techniques.\u0000 Key results – We transferred C. natalensis to a new genus, Sylvainia. Morphological similarities and differences between Cephalanthus and the new genus are discussed. Cephalanthus glabrifolius, a poorly known species and previously considered a synonym of C. tetrandrus, is resurrected as a valid species, bringing the number of species in Cephalanthus to six again. All species are described, illustrated, and their known distributions plotted on regional maps.\u0000 Conclusion – The subtribe Cephalanthinae now has two genera, its type Cephalanthus with six species, and a new monospecific genus Sylvainia endemic to south-eastern Africa. Based on the amended description of Cephalanthus, now absent from Africa, the generic concept is substantially modified, being represented now by three American and three Asian species.","PeriodicalId":54603,"journal":{"name":"Plant Ecology and Evolution","volume":" ","pages":""},"PeriodicalIF":1.1,"publicationDate":"2023-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45387701","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Novitates Gabonenses 93: a fresh look at Podostemaceae in Gabon following recent inventories, with a new combination for Ledermanniella nicolasii novatites Gabonenses 93:加蓬Podostemaceae在最近的库存后的新面貌,与Ledermanniella nicolasii的新组合
IF 1.1 4区 生物学
Plant Ecology and Evolution Pub Date : 2023-03-01 DOI: 10.5091/plecevo.96359
Ehoarn Bidault, Archange Boupoya, D. Ikabanga, Igor Nguimbit, N. Texier, R. Rutishauser, A. Mesterházy, T. Stévart
{"title":"Novitates Gabonenses 93: a fresh look at Podostemaceae in Gabon following recent inventories, with a new combination for Ledermanniella nicolasii","authors":"Ehoarn Bidault, Archange Boupoya, D. Ikabanga, Igor Nguimbit, N. Texier, R. Rutishauser, A. Mesterházy, T. Stévart","doi":"10.5091/plecevo.96359","DOIUrl":"https://doi.org/10.5091/plecevo.96359","url":null,"abstract":"Background and aims – Podostemaceae is a family of strictly aquatic plants found in rapids and waterfalls. Despite a recent treatment in the Flore du Gabon, the family remained poorly known, with no major studies including Gabonese collections, and almost no targeted inventories since 1966. We present the first large-scale inventory of this family in Gabon, targeting Podostemaceae throughout the country, providing new additions to the flora of Gabon and many new records of poorly known species.\u0000 Material and methods – Fieldwork was conducted in Gabon between 2017 and 2021. The collected specimens were primarily preserved in ethanol with associated silica gel-preserved material and photographs. Material available at BR, BRLU, LBV, MO, P, WAG, and Z/ZT was examined. For each species, information on distribution and ecology is presented, as well as a distribution map in Gabon.\u0000 Key results – The 500 newly collected specimens represent 91.4% of all known collections of Podostemaceae from Gabon. Three taxa are newly recorded for the country, including one genus (Inversodicraea tenax, Ledermanniella schlechteri, and Saxicolella nana). New distribution records are also presented for 13 little-known species. Four taxa are excluded from the Gabonese flora (the genus Dicraeanthus, Inversodicraea ledermannii, Ledermanniella sanagaensis, and Macropodiella garrettii). To date, 20 species belonging to five different genera are known to occur in Gabon. A new combination is proposed for Ledermanniella nicolasii, and Inversodicraea tanzaniensis is now considered as a synonym of Inversodicraea tenax.","PeriodicalId":54603,"journal":{"name":"Plant Ecology and Evolution","volume":" ","pages":""},"PeriodicalIF":1.1,"publicationDate":"2023-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49210926","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Indications of an Achaea sp. caterpillar outbreak disrupting fruiting of an ectomycorrhizal tropical tree in Central African rainforest 在中非雨林中,一种亚纲毛虫爆发,破坏了一棵外生菌根热带树的果实
4区 生物学
Plant Ecology and Evolution Pub Date : 2023-02-22 DOI: 10.5091/plecevo.96572
Julian M. Norghauer, David M. Newbery, Godlove A. Neba
{"title":"Indications of an Achaea sp. caterpillar outbreak disrupting fruiting of an ectomycorrhizal tropical tree in Central African rainforest","authors":"Julian M. Norghauer, David M. Newbery, Godlove A. Neba","doi":"10.5091/plecevo.96572","DOIUrl":"https://doi.org/10.5091/plecevo.96572","url":null,"abstract":"Background and aims – Where one or several tree species come to dominate patches of tropical forest, as many masting ectomycorrhizal legumes do in Central Africa, ecological theory predicts they may be prone to herbivory, which might alter their reproductive output. This was indirectly investigated in lowland rainforest in Cameroon for Tetraberlinia korupensis , whose crowns were attacked in 2008 by an outbreaking black caterpillar—identified as an Achaea sp., probably A. catocaloides —in Korup National Park. Material and methods – Field-collected data on tree-level seed and fruit (pod) production of T. korupensis in its 2008 masting event were compared with that of its two co-dominant neighbours ( T. bifoliolata , Microberlinia bisulcata ), whose populations masted in 2007 (and 2010). To do this, bivariate regression models (linear, polynomial, ZiG [zero-inflated gamma model]), contingency table analysis, and non-parametric measures of dispersion were used. Key results – Assuming T. korupensis is prone to Achaea caterpillar attacks, empirical data support the hypothesized lower proportion of adults participating in its masting (54% in 2008) than for either masting population of M. bisulcata (98% in 2007, 89% in 2010) or T. bifoliolata (96% in 2007, 78% in 2010). These fruiting T. korupensis trees were about one-third larger in stem diameter than conspecific non-fruiters and produced as many pods and seeds per capita as T. bifoliolata . However, regressions only modestly support the hypothesis that the positive tree size–fecundity relationship for T. korupensis was weaker (i.e. lower adj. R 2 ) than for M. bisulcata (whose leaves are morphologically similar) or T. bifoliolata , with mostly similar dispersion about the median among these species. Conclusion – Altogether, the findings suggest a role for tolerance in nutrient-poor forests. It is postulated that instead of conferring resistance to herbivores, the ectomycorrhizas associated with these trees may enable them to more quickly recover from potential yet unpredictable insect outbreaks.","PeriodicalId":54603,"journal":{"name":"Plant Ecology and Evolution","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-02-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136276421","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The Italian endemic forest plants: an annotated inventory and synthesis of knowledge 意大利特有的森林植物:一个注释清单和知识的综合
IF 1.1 4区 生物学
Plant Ecology and Evolution Pub Date : 2023-02-15 DOI: 10.5091/plecevo.95929
F. Selvi, G. Campetella, R. Canullo, S. Chelli, G. Domina, E. Farris, C. Gasperini, L. Rosati, C. Wellstein, E. Carrari
{"title":"The Italian endemic forest plants: an annotated inventory and synthesis of knowledge","authors":"F. Selvi, G. Campetella, R. Canullo, S. Chelli, G. Domina, E. Farris, C. Gasperini, L. Rosati, C. Wellstein, E. Carrari","doi":"10.5091/plecevo.95929","DOIUrl":"https://doi.org/10.5091/plecevo.95929","url":null,"abstract":"Background and aims – Forests are among the most threatened ecosystems worldwide, and endemic plants are often a vulnerable component of the flora of a given territory. So far, however, understory forest endemics of southern Europe have received little attention and are poorly known for several aspects.\u0000 Material and methods – We developed the first list of native vascular plants that are restricted to Italian forests. Available information on taxonomy, regional distribution, ecology, biology, functional traits, and conservation status was collected for each taxon, allowing to identify major knowledge gaps and calculate baseline statistics.\u0000 Key results – The list includes 134 taxa, most of which are linked to closed-canopy forest habitats, while the others are also found in margins and gaps. The forest and non-forest Italian endemic flora differed in terms of taxonomic and life-form distribution. The rate and density of forest endemism increased with decreasing latitude and were highest in Sicily, Calabria, and Basilicata, where paleoendemic mono- or oligotypic genera also occur. Endemic phanerophytes were especially numerous on islands. Beech and deciduous oak forests were the most important habitats, but hygrophilous woodlands also host numerous endemics. Overall, the ecology, biology, and functional traits of the forest endemic taxa are still poorly known. The ratio diploids/polyploids was highest in the south and on the islands. Almost 24% of the taxa were assessed as “Critically Endangered”, “Endangered”, or “Vulnerable”, and 24% were categorized as “Data Deficient”, based on the IUCN system. Increasing frequency and intensity of fires was the most frequent threat.\u0000 Conclusions – This work can contribute to implement the European forest plant species list and serve as a basis for further research on a unique biological heritage of the continent. However, more knowledge about these globally rare taxa is needed, to support their conservation in changing forest landscapes.","PeriodicalId":54603,"journal":{"name":"Plant Ecology and Evolution","volume":" ","pages":""},"PeriodicalIF":1.1,"publicationDate":"2023-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48990231","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Why fitness impacts of different herbivores may combine nonadditively, and why it matters to the ecology and evolution of plant-herbivore communities 为什么不同食草动物的适应性影响可以非加性地结合在一起,为什么它对植物-食草动物群落的生态学和进化很重要
IF 1.1 4区 生物学
Plant Ecology and Evolution Pub Date : 2023-02-08 DOI: 10.5091/plecevo.95982
M. Wise
{"title":"Why fitness impacts of different herbivores may combine nonadditively, and why it matters to the ecology and evolution of plant-herbivore communities","authors":"M. Wise","doi":"10.5091/plecevo.95982","DOIUrl":"https://doi.org/10.5091/plecevo.95982","url":null,"abstract":"Background and aims – The manner by which the effects of multiple antagonists combine is a fundamental issue in ecology. This issue has been especially important in plant-herbivore evolutionary ecology—particularly predicting whether the combined fitness impacts of multiple herbivores on a shared host plant can be inferred by simply adding the individual impacts that each herbivore has when feeding alone. Despite accumulating empirical data, relatively little theoretical progress has been made in explaining why impacts of herbivore damage often combine nonadditively, as well as predicting the conditions that lead to a greater-than-additive (synergistic) or to a less-than-additive (subadditive) pattern.\u0000 Material and methods – Based on considerations of limiting resources and source-sink relationships, I proposed and tested two hypotheses: 1) The fitness impacts of two species of herbivores that affect the same resource (i.e. feed on the same tissue in a similar fashion) will combine in a synergistic pattern (if that resource is not limiting reproduction when plants do not experience herbivory), and 2) The fitness impacts of two herbivores that affect different resources (i.e. feed on different tissues) will combine in a subadditive pattern. I performed a field experiment in which horsenettle (Solanum carolinense) was exposed to a factorial combination of four levels of leaf herbivory and five levels of simulated floral herbivory.\u0000 Key results – The results were consistent with both hypotheses: 1) The combined fitness impact of flower damage that was simulated as being caused by two florivorous species feeding on the same plants was greater than the sum of the same total amount of damage when the two species were simulated as feeding individually; and 2) The combined fitness impact of the leaf and floral damage was less than the sum of the same total amount of damage when the two species fed individually.\u0000 Conclusions – The main ecoevolutionary implication of these results is that subadditive impacts of leaf- and flower-feeding herbivores could weaken selection for resistance in horsenettle (or any plant species that hosts multiple herbivores), and thus subadditive impacts may contribute to the maintenance of diverse herbivore communities sharing a species of host plant.","PeriodicalId":54603,"journal":{"name":"Plant Ecology and Evolution","volume":" ","pages":""},"PeriodicalIF":1.1,"publicationDate":"2023-02-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43637566","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
An assessment of Coutaportla (Chiococceae, Rubiaceae) with the description of a new species from Mexico 文章题目墨西哥大鲵属(大鲵科,大鲵科)的鉴定及一新种描述
IF 1.1 4区 生物学
Plant Ecology and Evolution Pub Date : 2023-01-09 DOI: 10.5091/plecevo.89764
Alejandro TORRES-MONTUFAR, H. Flores-Olvera, Heriberto ÁVILA-GONZÁLEZ, A. Castro‐Castro, H. Ochoterena
{"title":"An assessment of Coutaportla (Chiococceae, Rubiaceae) with the description of a new species from Mexico","authors":"Alejandro TORRES-MONTUFAR, H. Flores-Olvera, Heriberto ÁVILA-GONZÁLEZ, A. Castro‐Castro, H. Ochoterena","doi":"10.5091/plecevo.89764","DOIUrl":"https://doi.org/10.5091/plecevo.89764","url":null,"abstract":"Background and aims – Ongoing studies on Mexican Rubiaceae revealed an undescribed species of Coutaportla endemic to the Sierra Madre Occidental pine-oak forests in the state of Sinaloa, near the border with Durango, Mexico. The species is here described and illustrated, and its morphological characters are compared with those of the other species in the genus.\u0000 Material and methods – This study is based on field observations, examination of herbarium specimens including digital images, and morphological studies based on samples from dried and spirit specimens.\u0000 Key results – The morphological comparison of taxonomically important characters among the species of Coutaportla reveals conditions that were previously not reported for the genus. The placentation and ovule number of C. lorenceana, which belongs in the Portlandia complex, is comparable to that in the Chiococceae tribe. This tribe was proposed to include the latter complex based on molecular data, but the classification was controversial according to the morphology. Coutaportla lorenceana hence provides a morphological link between the Portlandia complex and the taxa traditionally placed in Chiococceae. The new species is assessed as Critically Endangered following the IUCN Red List criteria.","PeriodicalId":54603,"journal":{"name":"Plant Ecology and Evolution","volume":" ","pages":""},"PeriodicalIF":1.1,"publicationDate":"2023-01-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45504535","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
A new species of Parianella (Poaceae, Bambusoideae, Olyreae) marks the southernmost distribution of the genus in Brazil 一新种(竹科,竹总科,竹科)标志着该属在巴西最南端的分布
IF 1.1 4区 生物学
Plant Ecology and Evolution Pub Date : 2022-12-14 DOI: 10.5091/plecevo.95130
F. Ferreira, R. P. Oliveira, L. Clark, C. A. Welker
{"title":"A new species of Parianella (Poaceae, Bambusoideae, Olyreae) marks the southernmost distribution of the genus in Brazil","authors":"F. Ferreira, R. P. Oliveira, L. Clark, C. A. Welker","doi":"10.5091/plecevo.95130","DOIUrl":"https://doi.org/10.5091/plecevo.95130","url":null,"abstract":"Background and aims – Parianella is a relatively recently described genus of the subtribe Parianinae (Poaceae, Bambusoideae, Olyreae) that includes two species, and it is supposedly endemic to the Bahian Coastal Forests in the central region of Atlantic Forest, Brazil. Herein, we describe and illustrate a new species of the genus, comparing it with the other species of Parianella. We also provide an updated distribution map of the genus and the conservation status of the new taxon.\u0000 Material and methods – This study was based on the analysis of herbarium specimens and a literature review. The conservation assessment is based on field observations and spatial analyses, following IUCN guidelines and criteria.\u0000 Key results – During a review of the Poaceae collection of the MBML Herbarium, two Parianinae specimens with interesting features were found. A detailed morphological analysis revealed that these specimens belong to a new species of Parianella. The new taxon was collected in two localities in the southern portion of the Brazilian state of Espírito Santo, one in the municipality of Santa Leopoldina and the other in the Duas Bocas Biological Reserve, municipality of Cariacica. Both localities are situated in the Krenák-Waitaká Forests, one of the three subregions of the central Atlantic Forest region, and an area of great floristic diversity, including bamboo species.\u0000 Conclusion – Parianella capixaba represents the southernmost distribution of the genus known to date. With the description of this new species, the total number of bamboos in Espírito Santo state rises to 52 species in 18 genera.","PeriodicalId":54603,"journal":{"name":"Plant Ecology and Evolution","volume":" ","pages":""},"PeriodicalIF":1.1,"publicationDate":"2022-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48223060","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A striking new species of Rhipidocladum (Poaceae: Bambusoideae: Bambuseae: Arthrostylidiinae) with single, terminal-spikelet synflorescences, endemic to Jalisco, Mexico 竹科:竹科:节肢竹科)一种具有单,顶生小穗同花的引人注目的新种,产于墨西哥哈利斯科
IF 1.1 4区 生物学
Plant Ecology and Evolution Pub Date : 2022-11-30 DOI: 10.5091/plecevo.86519
E. Ruíz-Sánchez, Christopher D. Tyrrell, Pablo Carrillo-Reyes, A. T. Nuño-Rubio
{"title":"A striking new species of Rhipidocladum (Poaceae: Bambusoideae: Bambuseae: Arthrostylidiinae) with single, terminal-spikelet synflorescences, endemic to Jalisco, Mexico","authors":"E. Ruíz-Sánchez, Christopher D. Tyrrell, Pablo Carrillo-Reyes, A. T. Nuño-Rubio","doi":"10.5091/plecevo.86519","DOIUrl":"https://doi.org/10.5091/plecevo.86519","url":null,"abstract":"Background and aims – Rhipidocladum, a woody bamboo genus distributed from Mexico to Argentina, has raceme like synflorescences of multiple spikelets. Six of the 21 known species occur in Mexico. In this study, we present a full description, distribution map, illustrations, and photographs of an unusual new Rhipidocladum species endemic to Jalisco, Mexico. Additionally, we provide an updated key to the species of Rhipidocladum in Mexico.\u0000 Material and methods – This study was based on fieldwork, literature, and herbarium specimens review. Specimens collected were analysed and photographed during fieldwork. The conservation assessment is based on spatial analyses, following the IUCN guidelines and criteria.\u0000 Results – This is the first species in the genus Rhipidocladum that has synflorescences with only a single, terminal spikelet. Rhipidocladum singuliflorum occurs only in three localities in the municipality of Puerto Vallarta, Jalisco, Mexico. This species inhabits the canyon slopes of rivers in subdeciduous and tropical dry forests, at 6–150 m a.s.l. According to our IUCN assessment, this new species should be considered Critically Endangered.","PeriodicalId":54603,"journal":{"name":"Plant Ecology and Evolution","volume":" ","pages":""},"PeriodicalIF":1.1,"publicationDate":"2022-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42833384","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
Species delimitation and phylogenetic relationships of Silene villosa s.l. (Caryophyllaceae, sect. Silene s.l.) using nrDNA ITS and cpDNA rps16 利用nrDNA ITS和cpDNA rps16对石竹科石竹节石竹的种界和系统发育关系进行研究
IF 1.1 4区 生物学
Plant Ecology and Evolution Pub Date : 2022-11-03 DOI: 10.5091/plecevo.85790
F. Jafari, M. Keshavarzi, R. Rabeler
{"title":"Species delimitation and phylogenetic relationships of Silene villosa s.l. (Caryophyllaceae, sect. Silene s.l.) using nrDNA ITS and cpDNA rps16","authors":"F. Jafari, M. Keshavarzi, R. Rabeler","doi":"10.5091/plecevo.85790","DOIUrl":"https://doi.org/10.5091/plecevo.85790","url":null,"abstract":"Background and aims – Species delimitation is a necessary investigation for widely distributed species. Examination of herbarium specimens and descriptions in local floras revealed that two forms of Silene villosa were recognized. Form B of S. villosa has been identified as a separate species named S. wendelboi. However, the latter species was not treated as a separate species in local floras. By using molecular tools, we investigated if these forms of S. villosa should be treated as two distinct species or be retained in S. villosa.\u0000 Material and methods – We created two datasets containing 84 and 46 accessions of nrDNA ITS and cpDNA rps16 regions, respectively, which were extracted mainly from GenBank. Phylogenies were reconstructed using Maximum Likelihood and Bayesian analyses.\u0000 Key results – We propose that S. villosa and S. wendelboi are two separate species, morphologically and phylogenetically. Silene wendelboi was first recognized in SW Iran but we show that the species is distributed in the Persian Gulf and the E Mediterranean region as well. In most cases, S. wendelboi is erroneously identified as S. villosa in these regions. The distribution of S. villosa is much wider, also occurring in SW Asia and North Africa, Egypt, and Algeria. Silene wendelboi differs from S. villosa in calyx texture, calyx length, the ratio of calyx length to pedicel, the shape of the apex of the coronal scale, seed morphology, and molecular data, i.e. ITS and rps16 sequences. Based on those two markers, S. villosa is closely related to S. ayachica, while S. wendelboi shows affinity to S. arabica.","PeriodicalId":54603,"journal":{"name":"Plant Ecology and Evolution","volume":" ","pages":""},"PeriodicalIF":1.1,"publicationDate":"2022-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48705753","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信