Journal of Systematics and Evolution最新文献_第6页

Culturable endophytic Sordariomycetes from Rosa roxburghii: New species and lifestyles Rosa roxburghii 中可培养的内生索氏菌：新物种和生活方式

IF 3.7 1区生物学

Journal of Systematics and Evolution Pub Date : 2023-12-07 DOI: 10.1111/jse.13035

Hong Zhang, Yu-Tao Mao, Ming-Xia Ma, Guang-Can Tao, Tian-Peng Wei, Yu-Lan Jiang

{"title":"Culturable endophytic Sordariomycetes from Rosa roxburghii: New species and lifestyles","authors":"Hong Zhang, Yu-Tao Mao, Ming-Xia Ma, Guang-Can Tao, Tian-Peng Wei, Yu-Lan Jiang","doi":"10.1111/jse.13035","DOIUrl":"https://doi.org/10.1111/jse.13035","url":null,"abstract":"Rosa-associated fungi are rich in species and diverse in function, with many potential new taxa. However, only a few publications have reported Rosa-associated endophytic fungi using a combination of molecular systematics and morphology. Rosa roxburghii is an economically important source of medicine and food. We reported earlier the diversity and antimicrobial activities of the fungal endophytes of this plant, but further confirmation is needed for possible new taxa. In this study, we describe 10 novel species and two new host records isolated from healthy tissues of R. roxburghii while identifying three new combinations, all belonging to the Sordariomycetes. The new species described herein include Chaetomium rosifloricola, Chaetomium rosiradicicola, Chrysofolia fructicola, Coniella cili, Hypoxylon florendophyticum, Hypoxylon rosicaulendophyticum, Ilyonectria radicigena, Neopestalotiopsis caulicola, Neopestalotiopsis fructicola, and Seimatosporium endophyticum. Monochaetia bulbophylli, Neopestalotiopsis anacardii, and Neopestalotiopsis termitarii were introduced as new combinations, while Coniella quercicola and Hypoxylon pulicicidum were described as new host records on R. roxburghii. All the taxa have been described, illustrated, and phylogenetically analyzed, in addition to the lifestyles of each genus. Altogether, the results of this study have important implications for identifying novel endophytic fungi and developing potential applications of these fungi in the future.","PeriodicalId":17087,"journal":{"name":"Journal of Systematics and Evolution","volume":"1 1","pages":""},"PeriodicalIF":3.7,"publicationDate":"2023-12-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138548117","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Speciation and conservation genetic assessment of two endangered cycad species 两个濒危苏铁物种的变种和保护基因评估

IF 3.7 1区生物学

Journal of Systematics and Evolution Pub Date : 2023-12-07 DOI: 10.1111/jse.13031

Xiu-Yan Feng, Yi-Qing Gong, Khang Sinh Nguyen, Hiep Tien Nguyen, Yong-Bo Liu, Jian Liu, Xun Gong

{"title":"Speciation and conservation genetic assessment of two endangered cycad species","authors":"Xiu-Yan Feng, Yi-Qing Gong, Khang Sinh Nguyen, Hiep Tien Nguyen, Yong-Bo Liu, Jian Liu, Xun Gong","doi":"10.1111/jse.13031","DOIUrl":"https://doi.org/10.1111/jse.13031","url":null,"abstract":"Understanding the driving forces of speciation is a central question in evolutionary biology. Cycas bifida (Dyer) K. D. Hill and Cycas micholitzii Dyer are two morphologically similar Cycas (Cycadaceae) species with deeply pectinate megasporophylls and dichotomously divided leaflets. Geographically, they are isolated by the Red River Fault Zone (RRFZ), which acts as a biogeographical barrier for many Cycas species. In this study, we investigated the divergence, genetic diversity, genetic structure, and demographic history of C. bifida and C. micholitzii to uncover the speciation mechanisms for the two endangered species. Results revealed high historical gene flow but low contemporary gene flow between the two species, with a deep divergence occurring in the Late Miocene. The long-term geographical isolation and ecological niche differentiation were identified as important factors in driving the divergence of the two species, supported by significant isolation by distance testing, barrier analysis, and niche consistency detection. Geographical isolation by the RRFZ played a pivotal role in facilitating their divergence by constraining gene flow. Conservation genetic analyses indicated high genetic diversity within both species, coupled with disparate responses to Pleistocene climate fluctuations: C. micholitzii experienced population expansion, while C. bifida displayed a mild bottleneck effect. To ensure the protection and long-term sustainability of two threatened species, relevant conservation guidelines were proposed based on the assessment of their genetic diversity and structure. This study furnishes valuable insights into the mechanisms underpinning species divergence and delivers actionable recommendations for cycad conservation.","PeriodicalId":17087,"journal":{"name":"Journal of Systematics and Evolution","volume":"1 1","pages":""},"PeriodicalIF":3.7,"publicationDate":"2023-12-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138547943","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Continuous genetic adaptation to high elevations of alpine bamboos in the Hengduan Mountains, Southwest China 中国西南横断山脉高山竹子对高海拔的持续遗传适应性

IF 3.7 1区生物学

Journal of Systematics and Evolution Pub Date : 2023-12-05 DOI: 10.1111/jse.13038

Li-Ying Luo, Gui-Hua Jin, Peng-Fei Ma, De-Zhu Li

{"title":"Continuous genetic adaptation to high elevations of alpine bamboos in the Hengduan Mountains, Southwest China","authors":"Li-Ying Luo, Gui-Hua Jin, Peng-Fei Ma, De-Zhu Li","doi":"10.1111/jse.13038","DOIUrl":"https://doi.org/10.1111/jse.13038","url":null,"abstract":"Many examples of phenotypic modifications resulting from high-elevation adaptation have been documented, however, the underlying processes responsible for these modifications and whether the continuity of the adaptation process remain elusive, particularly in plants. The alpine plants distributed along wide elevational gradients provide an ideal system to address this question. Here, we collected transcriptomes from multiple tissues of three species with different elevations (~1500, ~2500, and ~3600 m in the Hengduan Mountains, Southwest China) in two genera Fargesia and Yushania of alpine bamboos, respectively, and conducted evolutionary and expressional analyses. Results showed that high-elevation adaptation emerged earlier in the evolutionary history of both genera and evolved continuously as the elevation increased. Moreover, convergence of genetic changes was observed in the two genera, with amounts of candidate genes responsible for high-elevation adaptation identified under positive selection. Overall, our study provides an empirical example and valuable genetic resource for further investigation of high-elevation adaptation in plants and sheds new light on how plants adapting to high-elevation environments in a biodiversity hotspot.","PeriodicalId":17087,"journal":{"name":"Journal of Systematics and Evolution","volume":"47 1","pages":""},"PeriodicalIF":3.7,"publicationDate":"2023-12-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138548428","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Fossil endocarps of Menispermaceae from the late Paleocene of Paris Basin, France 法国巴黎盆地晚古新世Menispermaceae的内腕类化石

IF 3.7 1区生物学

Journal of Systematics and Evolution Pub Date : 2023-11-27 DOI: 10.1111/jse.13033

Eliise Kara, Jérémie Bardin, Dario De Franceschi, Cédric Del Rio

{"title":"Fossil endocarps of Menispermaceae from the late Paleocene of Paris Basin, France","authors":"Eliise Kara, Jérémie Bardin, Dario De Franceschi, Cédric Del Rio","doi":"10.1111/jse.13033","DOIUrl":"https://doi.org/10.1111/jse.13033","url":null,"abstract":"Menispermaceae are an angiosperm family of mostly climbing plants distributed throughout tropical regions. The fruits in this family have a strong sclerified endocarp and can be used for reliable species-level identifications, even in a fossilized form. New Paleocene-age menispermaceous endocarps have recently been discovered in South America and Asia, while in Europe, they are mostly found in the Eocene. This paper focuses on the study of fossil endocarps belonging to Menispermaceae, found in the Petit-Pâtis locality, which is one of the few Paleocene localities in Europe. The locality is dated to the late Paleocene (57–56 Ma) and the fossils represent flora and fauna in the Paris Basin before the onset of the Paleocene–Eocene Thermal Maximum. Lignitized fossils were photographed and their morphology was analyzed using computed tomography, scanning electron microscope, and geometric morphometric analysis. The analysis of 36 fossils belonging to Menispermaceae revealed that three genera (Stephania, Palaeosinomenium, Tinospora) were present in the late Paleocene of Paris Basin. Differences in internal morphology and a more inflated endocarp base led to a description of a new fossil species—Palaeosinomenium oisensis sp. nov. The occurrence of these genera in the Paleocene of France is consistent with the suggestion that megathermal flora was present in the Paris Basin before the Paleocene–Eocene Thermal Maximum. These three genera are currently the oldest occurrences in Europe, highlighting the connection between paleofloras of the Americas, Europe, and Asia in the Paleocene.","PeriodicalId":17087,"journal":{"name":"Journal of Systematics and Evolution","volume":"77 ","pages":""},"PeriodicalIF":3.7,"publicationDate":"2023-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138505824","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Chloroplast genomes and ribosomal DNA provide insights into divergence and morphological evolution of alpine Tongoloa 叶绿体基因组和核糖体DNA提供了高山通通虫分化和形态进化的见解

IF 3.7 1区生物学

Journal of Systematics and Evolution Pub Date : 2023-11-27 DOI: 10.1111/jse.13028

Ling-Jian Gui, Deng-Feng Xie, Chang Peng, Ting Ren, Li-Ying Yu, Song-Dong Zhou, Xing-Jin He

{"title":"Chloroplast genomes and ribosomal DNA provide insights into divergence and morphological evolution of alpine Tongoloa","authors":"Ling-Jian Gui, Deng-Feng Xie, Chang Peng, Ting Ren, Li-Ying Yu, Song-Dong Zhou, Xing-Jin He","doi":"10.1111/jse.13028","DOIUrl":"https://doi.org/10.1111/jse.13028","url":null,"abstract":"Tongoloa is a herbaceous genus of East Asia Clade (Apiaceae) distributed in the alpine regions. The use of DNA fragments has not provided a well-resolved evolutionary history. For this research, we primarily collected samples from the type localities of Tongoloa and closely related taxa in the Hengduan Mountains. The chloroplast (cp) genomes and nuclear ribosomal (nr) DNA repeats of 27 taxa were assembled using genome skimming sequencing reads. We analyzed the characteristics of the Tongoloa cp genome, and found a remarkable expansion of the Inverted Repeats. Three genes (ndhC, ndhJ, and petG) related to photosynthesis appear to have undergone significant selective pressure. Through high-resolution phylogenetic analysis, the cpDNA provided compelling evidence supporting the inclusion of Sinolimprichtia as an early taxon within Tongoloa. However, the nrDNA suggested that Tongoloa and Sinolimprichtia belong to distinct branches. Morphological analysis showed that Tongoloa has broadly oval fruits with a cordate base, whereas the fruits of Sinolimprichtia are long-obovate with an obtuse base. The specific fruit morphology of Sinolimprichtia was found to be nested within Tongoloa in the cpDNA phylogenetic tree. Ancient introgression and chloroplast capture provide the most plausible explanation for the significant conflict between the nrDNA and cpDNA phylogenies. Our study highlights the potential impact of the complex evolutionary history of Tongoloa on the challenges encountered in previous taxonomic treatments.","PeriodicalId":17087,"journal":{"name":"Journal of Systematics and Evolution","volume":"83 ","pages":""},"PeriodicalIF":3.7,"publicationDate":"2023-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138505822","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Plant species richness hotspots and related drivers across spatial scales in small Mediterranean islands 地中海小岛屿植物物种丰富度热点及其驱动因素

IF 3.7 1区生物学

Journal of Systematics and Evolution Pub Date : 2023-11-27 DOI: 10.1111/jse.13034

Riccardo Testolin, Fabio Attorre, Vanessa Bruzzaniti, Riccardo Guarino, Borja Jiménez-Alfaro, Michele Lussu, Stefano Martellos, Michele Di Musciano, Salvatore Pasta, Francesco Maria Sabatini, Francesco Santi, Piero Zannini, Alessandro Chiarucci

{"title":"Plant species richness hotspots and related drivers across spatial scales in small Mediterranean islands","authors":"Riccardo Testolin, Fabio Attorre, Vanessa Bruzzaniti, Riccardo Guarino, Borja Jiménez-Alfaro, Michele Lussu, Stefano Martellos, Michele Di Musciano, Salvatore Pasta, Francesco Maria Sabatini, Francesco Santi, Piero Zannini, Alessandro Chiarucci","doi":"10.1111/jse.13034","DOIUrl":"https://doi.org/10.1111/jse.13034","url":null,"abstract":"Small islands represent a common feature in the Mediterranean and host a significant fraction of its biodiversity. However, the distribution of plant species richness across spatial scales—from local communities (alpha) to whole islands (gamma)—is largely unknown, and so is the influence of environmental, geographical, and topographical factors. By building upon classic biogeographic theory, we used the species–area relationship and about 4500 vegetation plots in 54 Central Mediterranean small islands to identify hotspots of plant species richness and the underlying spatial determinants across scales. To do so, we fitted and averaged eight species–area models on gamma and alpha richness against island area and plot size, respectively. Based on positive deviations from the fitted curves, we identified 12 islands as cross-scale hotspots. These islands encompassed around 70% of species and habitat richness, as well as almost 50% of the rarest species in the data set, while occupying less than 40% of the total island surface. By fitting generalized linear mixed models, we found that gamma richness was mainly explained by island area and was weakly related to mean annual temperature (positively) and annual precipitation (negatively). As for alpha richness, after accounting for the idiosyncratic effect of habitats and islands, plot size and gamma richness remained the only significant predictors, showing a positive relationship. This work contributes to the understanding of the patterns and drivers of plant diversity in Central Mediterranean small islands and outlines a useful methodology for the prioritization of conservation efforts.","PeriodicalId":17087,"journal":{"name":"Journal of Systematics and Evolution","volume":"67 ","pages":""},"PeriodicalIF":3.7,"publicationDate":"2023-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138505830","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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 Shenzhen Congress and plant conservation: What have we accomplished in the 6 years since? 深圳大会与植物保护:6年来我们取得了哪些成就?

1区生物学

Journal of Systematics and Evolution Pub Date : 2023-11-02 DOI: 10.1111/jse.13030

Peter H. Raven, Zhiyun Ouyang, Paul Smith, Mathis Wackernagel

{"title":"The Shenzhen Congress and plant conservation: What have we accomplished in the 6 years since?","authors":"Peter H. Raven, Zhiyun Ouyang, Paul Smith, Mathis Wackernagel","doi":"10.1111/jse.13030","DOIUrl":"https://doi.org/10.1111/jse.13030","url":null,"abstract":"At the XIX International Botanical Congress held in Shenzhen, China, in July 2017, the delegates unanimously adopted the Shenzhen Declaration on Plant Sciences in an effort to accelerate the contributions made by plant scientists for the benefit of the world′s changing society. This paper discusses what has been accomplished concerning plant conservation since the Shenzhen Declaration. Beyond the problems we faced in 2017, the global Covid pandemic and the war have presented new challenges. With the massive ecological overshoot, the number of malnourished people globally has increased. Most threats to vascular plants have increased generally over these 6 years, while the responses of the botanical community to them have continued to proceed at a relatively slow pace. Although international cooperation is needed to combat the grave challenges we face, the ease of such collaboration has decreased substantially in recent years. Certainly, rapid deforestation, especially in the tropics, and our ineffective approaches to mitigate climate change will lessen the effectiveness of our strategies to slow extinction. Indeed, our blindness to the reality of ecological overshoot and misperceptions concerning sustainability are accelerating extinction and thus destabilizing social structures and civilization. As an example, conservation in China faces serious challenges with biodiversity loss, but botanical gardens and seed banks there offer hope on ex situ conservation. The botanical and other scientific communities can contribute by drawing the attention of fellow citizens to the gravity of the problems that we face and by being actively engaged in providing solutions and carrying them forward to action.","PeriodicalId":17087,"journal":{"name":"Journal of Systematics and Evolution","volume":"61 6","pages":"949-956"},"PeriodicalIF":0.0,"publicationDate":"2023-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134801440","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Time-calibrated phylogeny of Daphne (Thymelaeaceae): Pre-mediterranean temporal origin of the sclerophyllous Daphne gnidium Daphne（胸腺花科）的时间校准系统发育：硬叶植物 Daphne gnidium 的前地中海时间起源

1区生物学

Journal of Systematics and Evolution Pub Date : 2023-09-12 DOI: 10.1111/jse.13018

Cristina Ramos-Capón, Pablo Vargas, Fernando Pomeda-Gutiérrez, Sara Martín-Hernanz

{"title":"Time-calibrated phylogeny of Daphne (Thymelaeaceae): Pre-mediterranean temporal origin of the sclerophyllous Daphne gnidium","authors":"Cristina Ramos-Capón, Pablo Vargas, Fernando Pomeda-Gutiérrez, Sara Martín-Hernanz","doi":"10.1111/jse.13018","DOIUrl":"10.1111/jse.13018","url":null,"abstract":"The sclerophyllous syndrome is characterized by well-defined traits (evergreen coriaceous leaves, inconspicuous flowers, and fleshy fruits). It has been hypothesized that lineages displaying the sclerophyllous syndrome show lower speciation rates than non-sclerophyllous lineages after the establishment of the mediterranean climate. Daphne gnidium displays sclerophyllous traits and some differentiation into three subspecies (gnidium, mauritanica, maritima), but the spatio-temporal origin of this taxonomic group is unknown due to the lack of a time-calibrated phylogeny of the whole genus. Here, we inferred phylogenetic relationships and divergence times of Daphne (32 species, 238 samples) and other genera of Thymelaeaceae (16 genera, 38 species, 34 samples) using the internal transcribed spacer (ITS), which revealed that the current circumscription of Daphne is profoundly polyphyletic because some species are nested within the genera Wikstroemia and Edgeworthia. In contrast, D. gnidium formed a well-supported clade as recognized in taxonomic accounts (subgenus Spachia). We found morphological and phylogenetic support for Daphne mauritanica as a monophyletic lineage sister to D. gnidium. Divergence between D. gnidium and D. mauritanica appears to have predated the establishment of seasonally dry conditions, which supports a pre-mediterranean temporal origin of the lineage. A phylogeographical analysis within D. gnidium based on 66 nrDNA (ITS) and 84 cpDNA (rps16, trnV) sequences agreed with the low differentiation of the species in the Pleistocene despite its large distribution range. Altogether, D. gnidium illustrates one more example of the sclerophyllous syndrome with no speciation after the onset of the mediterranean climate.","PeriodicalId":17087,"journal":{"name":"Journal of Systematics and Evolution","volume":"62 1","pages":"20-37"},"PeriodicalIF":0.0,"publicationDate":"2023-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/jse.13018","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135886301","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Banksia (Proteaceae) contains less phylogenetic diversity than expected in Southwestern Australia 在澳大利亚西南部，Banksia(变形科)的系统发育多样性低于预期

1区生物学

Journal of Systematics and Evolution Pub Date : 2023-09-12 DOI: 10.1111/jse.13019

Joseph T. Miller, Emily Prentice, Elisabeth N. Bui, Nunzio Knerr, Brent D. Mishler, Alexander N. Schmidt-Lebuhn, Carlos González-Orozco, Shawn Laffan

{"title":"Banksia (Proteaceae) contains less phylogenetic diversity than expected in Southwestern Australia","authors":"Joseph T. Miller, Emily Prentice, Elisabeth N. Bui, Nunzio Knerr, Brent D. Mishler, Alexander N. Schmidt-Lebuhn, Carlos González-Orozco, Shawn Laffan","doi":"10.1111/jse.13019","DOIUrl":"https://doi.org/10.1111/jse.13019","url":null,"abstract":"Banksia L.f., an iconic genus of the Proteaceae, is endemic to Australia, with its highest species richness and phylogenetic diversity (PD) in southwestern Western Australia. Analysis of the phylogenetic component of richness and endemism uncovered important patterns of Banksia evolutionary history that are not seen at the species level. We found that Banksia is significantly phylogenetically clustered in this region, likely due to recent evolutionary radiations. We also found significant concentrations of phylogenetic endemism in this region, both neoendemism (short, range-restricted evolutionary branches) and paleoendemism (long, range-restricted evolutionary branches). There is a striking northwest to southeast divide in phyloturnover in southwestern Western Australia. The majority of the variation in turnover patterns can be explained by environmental factors, with climate representing the largest covariate. This study adds to the growing body of evidence that indicates the importance of integrating phylogenetic and biodiversity data to inform conservation planning.","PeriodicalId":17087,"journal":{"name":"Journal of Systematics and Evolution","volume":"61 6","pages":"957-966"},"PeriodicalIF":0.0,"publicationDate":"2023-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134805533","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

First recognition of the extinct eudicot genus Palibinia in North America: Leaves and fruits of Palibinia comptonifolia (R.W.Br.) comb. nov. from the Eocene of Utah and Colorado, USA 首次在北美发现已灭绝的裸子植物 Palibinia 属：来自美国犹他州和科罗拉多州始新世的 Palibinia comptonifolia (R.W.Br.) comb.

1区生物学

Journal of Systematics and Evolution Pub Date : 2023-08-22 DOI: 10.1111/jse.13011

Steven R. Manchester, Walter S. Judd, Tatiana Kodrul

{"title":"First recognition of the extinct eudicot genus Palibinia in North America: Leaves and fruits of Palibinia comptonifolia (R.W.Br.) comb. nov. from the Eocene of Utah and Colorado, USA","authors":"Steven R. Manchester, Walter S. Judd, Tatiana Kodrul","doi":"10.1111/jse.13011","DOIUrl":"10.1111/jse.13011","url":null,"abstract":"Newly investigated leafy twigs bearing axillary fruits from the Eocene Parachute Creek Member of the Green River Formation in eastern Utah, USA, have provided more information on the species previously attributed to the Proteaceae as Banksia comptonifolia R.W.Br. The leaves are simple, estipulate with short petioles, and elongate laminae with prominent angular nonglandular teeth. The laminae have a thick midvein and pinnate craspedodromous secondaries, and are distinctive in the presence of a thick, often coalified, marginal rim. Vegetative and reproductive buds occur in the axils of the leaves. These features indicate that the species belongs to Palibinia Korovin—an extinct Eudicot genus previously known only from the Paleogene of Asia and Europe. Small pedicellate ovoid fruits 1.5–2.2 mm wide are borne in fascicles of three and are seen to be capsules with four apical valves. Despite the specific epithet referring to similarity of the foliage to that of Comptonia (Myricaceae), the fasciculate inflorescence organization with axillary flowers is quite distinct from the catkins characteristic of that family. Assignment to Banksia or other Proteaceae with complex inflorescences and follicular fruits is also problematic. Additionally, MacGinitie′s transfer of the species to Vauquelinia of the Rosaceae is contradicted by the lack of stipule scars on the twig and by differences in leaf venation and floral morphology. We transfer the species to Palibinia comptonifolia (R.W.Br.) comb. nov., but its familial affinity within the Pentapetalae remains uncertain. This new occurrence augments records from the Paleogene of Turkmenistan, Kazakhstan, China, England, and Germany.","PeriodicalId":17087,"journal":{"name":"Journal of Systematics and Evolution","volume":"62 1","pages":"149-163"},"PeriodicalIF":0.0,"publicationDate":"2023-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/jse.13011","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88075855","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0