Botanical Journal of the Linnean Society最新文献_第3页

Fixed non-random orientation to the Sun (conversotropism) in two window-flowered greenhood orchids, Diplodium spp. (Orchidaceae: Pterostylidinae); implications for other window flowers and pollinator behaviour 两种窗花绿兰Diplodium spp.（兰科：紫檀属）对太阳的固定非随机定向（conversotropism）；对其他窗花和授粉者行为的影响

IF 2.4 2区生物学

Botanical Journal of the Linnean Society Pub Date : 2024-04-29 DOI: 10.1093/botlinnean/boae023

Colin Bower

{"title":"Fixed non-random orientation to the Sun (conversotropism) in two window-flowered greenhood orchids, Diplodium spp. (Orchidaceae: Pterostylidinae); implications for other window flowers and pollinator behaviour","authors":"Colin Bower","doi":"10.1093/botlinnean/boae023","DOIUrl":"https://doi.org/10.1093/botlinnean/boae023","url":null,"abstract":"Many plant species orient their flowers to the Sun. Such orientations may be dynamic (heliotropism or solar tracking) or static, adopting fixed non-random azimuths to points on the daily arc of the Sun (conversotropism as defined herein). Two cauline greenhood orchid species, Diplodium reflexum and D. ampliatum (Pterostylidinae), are shown to be negatively conversotropic and non-heliotropic. Cauline greenhoods are trap and window flowers having large translucent light panels that glow when backlit flowers are viewed from the front. Conversotropism in greenhoods is thought to maximize light transmission through the window panels to manipulate the behaviour of fungus gnat pollinators. Conversotropism is so far documented in only seven species in five plant families, but is likely to be more widespread. The general characteristics of conversotropism are summarized and a new two stage model of window function in greenhoods is proposed. Window flowers in the Lady Slipper orchids (Cypripedium) and in Arums of the genus Arisaema are also predicted to be conversotropic. The evolution of conversotropism in cauline greenhoods highlights the importance of floral windows in these orchids. The highly unusual trap flowers may use light both as a pollinator attractant and repellent at different stages of the pollination process. Greenhoods appear to exploit the instinct of flies to escape confinement and the behaviours enabling it. This probably also applies to other trap flowers and adds insect escape behaviours to the many other drives, instincts, and behaviours exploited by plants for pollination.","PeriodicalId":9178,"journal":{"name":"Botanical Journal of the Linnean Society","volume":null,"pages":null},"PeriodicalIF":2.4,"publicationDate":"2024-04-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140829316","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Molecular variation and phylogeography within European Isothecium alopecuroides and Pseudisothecium myosuroides (Bryophyta, Lembophyllaceae) 欧洲 Isothecium alopecuroides 和 Pseudisothecium myosuroides（苔藓植物门，蓝藻科）的分子变异和系统地理学

IF 2.4 2区生物学

Botanical Journal of the Linnean Society Pub Date : 2024-04-23 DOI: 10.1093/botlinnean/boae009

I. Draper, L. Hedenäs

{"title":"Molecular variation and phylogeography within European Isothecium alopecuroides and Pseudisothecium myosuroides (Bryophyta, Lembophyllaceae)","authors":"I. Draper, L. Hedenäs","doi":"10.1093/botlinnean/boae009","DOIUrl":"https://doi.org/10.1093/botlinnean/boae009","url":null,"abstract":"\u0000 Earlier studies on Isothecium s.l. suggested potential interchange of genetic material between species that are nowadays known to belong to separate genera. In this study, we analyse the variation in three molecular markers (nuclear gpd; mitochondrial nad5; and plastid trnG) in a wide selection of Isothecium alopecuroides and Pseudisothecium myosuroides specimens to infer whether this potential exchange of genetic material is frequent. In addition, we explore the phylogeographic structure of these two species in Europe. Our results seem to show repeated genetic interchange for the nuclear and mitochondrial markers in both species, suggesting intergeneric hybridization, although horizontal gene transfer and/or incomplete lineage sorting could also explain the detected incongruences. The genetic lineages found indicate a complex biogeographical history for I. alopecuroides, including both post-glacial immigration from different glacial refugia and developing haplotypes potentially adapted to cold climates. As for P. myosuroides, genetic variants could either indicate a post-glacial immigration history or adaptation to oceanic conditions. Further studies including a larger set of more variable molecular markers could help to reach final conclusions on the results here presented.","PeriodicalId":9178,"journal":{"name":"Botanical Journal of the Linnean Society","volume":null,"pages":null},"PeriodicalIF":2.4,"publicationDate":"2024-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140669717","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

One more word on Patagonian Ulota macrodontia: Ulota brachypoda sp. nov. (Orthotrichaceae, Bryophyta) 再来说说巴塔哥尼亚的 Ulota macrodontia：Ulota brachypoda sp.

IF 2.4 2区生物学

Botanical Journal of the Linnean Society Pub Date : 2024-04-21 DOI: 10.1093/botlinnean/boae022

Nikolay Matanov, Isabel Draper, Juan Antonio Calleja, Maren Flagmeier, Francisco Lara, Ricardo Garilleti

{"title":"One more word on Patagonian Ulota macrodontia: Ulota brachypoda sp. nov. (Orthotrichaceae, Bryophyta)","authors":"Nikolay Matanov, Isabel Draper, Juan Antonio Calleja, Maren Flagmeier, Francisco Lara, Ricardo Garilleti","doi":"10.1093/botlinnean/boae022","DOIUrl":"https://doi.org/10.1093/botlinnean/boae022","url":null,"abstract":"The bryophyte genus Ulota has its main diversification area in Patagonia, with 18 currently accepted species, all of which are endemic to the area. Despite this richness, ongoing studies indicate the existence of hitherto unknown species in this territory. However, the strong resemblance between species often complicates the discrimination of new taxa, making the use of integrative taxonomy approaches compulsory. During surveys conducted in past decades, a morphotype of a Ulota, closely resembling Ulota macrodontia, was discovered coexisting with this species. Ulota macrodontia is characterized by unique peristomial features within the genus, and the variant morphotype shares these characteristics while displaying some distinct gametophytic and sporophytic features. Biometric analyses demonstrate that the differences are stable, and without intermediate states. The results obtained from the analyses of one nuclear and four plastid loci reveal a close relationship between both morphotypes, with the samples of U. macrodontia forming a well-supported monophyletic group. We propose to treat the new morphotype at species level (Ulota brachypoda sp. nov.), discussing why this is the most appropriate taxonomic rank, and we provide a detailed and illustrated description. Additionally, a distribution map of the two endemics is included.","PeriodicalId":9178,"journal":{"name":"Botanical Journal of the Linnean Society","volume":null,"pages":null},"PeriodicalIF":2.4,"publicationDate":"2024-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140629639","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Phylogeny, chronology, and phylogeography in Australasian Hypnodendraceae 澳大拉西亚裸子植物的系统发育、年代学和系统地理学

IF 2.4 2区生物学

Botanical Journal of the Linnean Society Pub Date : 2024-04-16 DOI: 10.1093/botlinnean/boae020

Diego Sánchez-Ganfornina, Neil E Bell

{"title":"Phylogeny, chronology, and phylogeography in Australasian Hypnodendraceae","authors":"Diego Sánchez-Ganfornina, Neil E Bell","doi":"10.1093/botlinnean/boae020","DOIUrl":"https://doi.org/10.1093/botlinnean/boae020","url":null,"abstract":"The Hypnodendrales form the sister group to all other pleurcarpous mosses in the superorder Hypnanae. Many species are closely associated with the cool temperate rainforests of Australasia, while others are widespread in higher altitude wet forests across tropical South-East Asia. Several of the Malesian entities are taxonomically ambiguous, having been variously treated as species complexes or as single very variable species. Here we use dated phylogenies to examine the timing of diversification of major clades within the Hypnodendrales, test the hypothesis that widespread, taxonomically problematic species have diversified relatively recently in South-East Asia from within clades of southern temperate origin, and address taxonomic questions within Hypnodendron. A chronogram with broad taxonomic sampling is constructed, followed by a second dated phylogeny with dense sampling from Hypnodendron vitiense, a representative morphologically variable species found throughout Eastern Australia and South-East Asia. The crown group Hypnodendrales are found to have originated in the mid-Cretaceous, although they share a Most Recent Common Ancestor (MRCA) with the other Hypnanae in the late Jurassic. Extant members of Hypnodendron share a MRCA ±28 Mya, a little before the start of the collision of Australia with the Sunda plate that initiated the Australasian–Malesian floristic interchange. Within H. vitiense, there is strong phylogenetic structure consistent with the diversification and isolation of populations in South-East Asia within the last 10 Mya. The New Zealand endemic H. marginatum is found to be derived from within an Australasian clade of H. vitiense, this in turn being distinct from a South-East Asian/tropical Australian H. vitiense clade. Our results suggest that the phylogeography of this prominent group of mosses closely mirrors that of the rainforest ecosystems of which they are a part.","PeriodicalId":9178,"journal":{"name":"Botanical Journal of the Linnean Society","volume":null,"pages":null},"PeriodicalIF":2.4,"publicationDate":"2024-04-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140612851","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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 shift between bee and wasp pollinators explains floral divergence in the Duvernoia clade of Justicia (Acanthaceae) 蜜蜂和黄蜂传粉者之间的转变解释了杜鹃花科（刺桐属）Duvernoia 支系的花卉分化

IF 2.4 2区生物学

Botanical Journal of the Linnean Society Pub Date : 2024-04-11 DOI: 10.1093/botlinnean/boae021

Arjun Adit, Steven D Johnson

{"title":"A shift between bee and wasp pollinators explains floral divergence in the Duvernoia clade of Justicia (Acanthaceae)","authors":"Arjun Adit, Steven D Johnson","doi":"10.1093/botlinnean/boae021","DOIUrl":"https://doi.org/10.1093/botlinnean/boae021","url":null,"abstract":"Floral divergence among sister taxa can arise from pollinator shifts and play a role in speciation. We investigate a potential case of pollinator-driven divergence in the Duvernoia clade of Justicia (Acanthaceae), which includes two species with markedly divergent floral morphology. Pollinator observations and pollen load analyses showed that Justicia aconitiflora is pollinated by vespid wasps, while its sister taxon Justicia adhatodoides is confirmed to be pollinated exclusively by large carpenter bees. Reciprocal nectar-feeding experiments show that wasps and bees are not deterred by the taste of nectar of non-preferred species. Floral morphology matches body and tongue morphology of these two insect groups, and this phenotypic matching mediates pollen transfer and physical access to nectar. Controlled pollination experiments showed that both species are self-compatible, yet dependent on pollinator visits for fruit-set. Historical reconstruction of pollination system evolution in Justicia indicates that the direction of the shift in the Duvernoia clade was from bee to wasp pollinators. This study provides a compelling example of a transition between bee and wasp pollination, and highlights the effects of floral architecture on specialization in plant pollination systems.","PeriodicalId":9178,"journal":{"name":"Botanical Journal of the Linnean Society","volume":null,"pages":null},"PeriodicalIF":2.4,"publicationDate":"2024-04-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140565595","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Sphaerocrystals in seeds of Euphorbia subgenus Esula (Euphorbiaceae): morphology, occurrence, and relationship with phylogeny 大戟科大戟属（Euphorbia subgenus Esula）种子中的 Sphaerocrystals：形态、发生以及与系统发育的关系

IF 2.4 2区生物学

Botanical Journal of the Linnean Society Pub Date : 2024-04-09 DOI: 10.1093/botlinnean/boae013

Dmitry V Geltman, Nina A Medvedeva, Galina E Titova, Olga V Yakovleva

{"title":"Sphaerocrystals in seeds of Euphorbia subgenus Esula (Euphorbiaceae): morphology, occurrence, and relationship with phylogeny","authors":"Dmitry V Geltman, Nina A Medvedeva, Galina E Titova, Olga V Yakovleva","doi":"10.1093/botlinnean/boae013","DOIUrl":"https://doi.org/10.1093/botlinnean/boae013","url":null,"abstract":"The term ‘sphaerocrystals’ (also sphaerites) in classic plant morphology was usually applied to spherical bodies visible in polarized light with a characteristic ‘Maltese cross’ and consisting of both inorganic and organic compounds. Initially sphaerocrystals were found in algal cells but were later also discovered in various organs of vascular plants (including seeds). Several authors noticed spherical particles on the seed surface and in testa cells of some Euphorbia species but a comprehensive study of this character in the genus (including the morphological origin of such particles) has not been carried out. We studied 72 species belonging to all 21 sections of Euphorbia subgenus Esula for presence of spherical particles on seed surface and in the testa using scanning, transmission, confocal laser electron microscopy, and light microscopy; histochemical and element analyses were also involved. We found that these particles have the same morphological features (including the demonstration of ‘Maltese cross’ in polarized light) as the ‘classic’ sphaerocrystals. We have recorded sphaerocrystals in 53 sampled species belonging to 20 sections of Euphorbia subgenus Esula; they are localized mostly in mesotesta cells and in some species are exuded onto the seed surface where they are often aggregated into clusters. Sphaerocrystals were absent in the sampled species (with one exception) of one of the major clades of the subgenus, formed by E. sect. Helioscopia and E. sect. Holophyllum. The absence of sphaerocrystals in this early divergent lineage of E. subgen. Esula may be related with adaptation of species of this lineage to more mesic habitats.","PeriodicalId":9178,"journal":{"name":"Botanical Journal of the Linnean Society","volume":null,"pages":null},"PeriodicalIF":2.4,"publicationDate":"2024-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140565454","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Andean uplift, climatic events, and rainforest bridges determined the spatiotemporal evolution of the cumaru and tonka beans (Dipterygeae: Leguminosae) 安第斯山隆升、气候事件和雨林桥决定了积雪豆和通卡豆（双翅目：豆科）的时空演变

IF 2.4 2区生物学

Botanical Journal of the Linnean Society Pub Date : 2024-03-28 DOI: 10.1093/botlinnean/boae015

Catarina S Carvalho, Haroldo C Lima, Maristerra R Lemes, Domingos Cardoso

{"title":"Andean uplift, climatic events, and rainforest bridges determined the spatiotemporal evolution of the cumaru and tonka beans (Dipterygeae: Leguminosae)","authors":"Catarina S Carvalho, Haroldo C Lima, Maristerra R Lemes, Domingos Cardoso","doi":"10.1093/botlinnean/boae015","DOIUrl":"https://doi.org/10.1093/botlinnean/boae015","url":null,"abstract":"Historical climatic and geological events are largely known to have impacted biome evolution across the Neotropics and their associated rich biodiversity. However, a clear understanding of dispersal and biome shifts between neotropical biomes over time is still lacking for many ecologically important plant clades. We investigated the timing and ancestral species movements within the early branching papilionoid legume Dipterygeae lineage of neotropical tree species, some of which are among the most ecologically dominant across Amazonian rainforests and Brazilian savannas, to understand how dispersal and evolutionary trajectories in biome predilection have led to their modern distribution. We also estimated the evolution of fruit types and discuss their potential roles in the colonization of non-Amazonian rainforest habitats. To address these questions, we used one nuclear (ITS/5.8S) and two plastid (matK and trnL intron) DNA regions of the Dipterygeae clade to estimate divergence times with a Bayesian relaxed-clock approach, ancestral area distribution, and evolutionary shifts in biome and morphological traits. All currently recognized species of this clade were sampled, covering its full geographical range. Dipterygeae originated in the Amazonia during the Middle Eocene, where it has undergone a long history of in situ diversification, particularly over the last 15 Myr. Dispersal events into the rainforests of the Brazilian Coastal Atlantic Forest and Chocó + Central America, the fire-prone savannas of the Cerrado, and the Caatinga seasonally dry tropical forest occurred independently. Most lineages ecologically associated with rainforests are dispersed by animals (zoochory), whereas shifts to open habitats generally coincide with wind dispersal (anemochory). Our study highlights the significance of geological events, climatic factors, and shifts in fruit type as crucial contributors to the diversification of Dipterygeae.","PeriodicalId":9178,"journal":{"name":"Botanical Journal of the Linnean Society","volume":null,"pages":null},"PeriodicalIF":2.4,"publicationDate":"2024-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140324240","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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 phylogenomic reconstruction of the Endangered Malagasy tree genus Capurodendron (Sapotaceae) with nine new species and an identification key 马达加斯加濒危树属 Capurodendron（无患子科）的系统发生组重建及九个新种和识别钥匙

IF 2.4 2区生物学

Botanical Journal of the Linnean Society Pub Date : 2024-03-27 DOI: 10.1093/botlinnean/boad073

Carlos G Boluda, Yamama Naciri, Laurent Gautier

{"title":"A phylogenomic reconstruction of the Endangered Malagasy tree genus Capurodendron (Sapotaceae) with nine new species and an identification key","authors":"Carlos G Boluda, Yamama Naciri, Laurent Gautier","doi":"10.1093/botlinnean/boad073","DOIUrl":"https://doi.org/10.1093/botlinnean/boad073","url":null,"abstract":"Capurodendron is the second largest endemic genus of vascular plants in Madagascar. It comprises mainly trees that are frequently logged for their valued wood. This, together with deforestation, led to 76% of the known species being Endangered or Critically Endangered. However, a confident species identification is often not possible with the current available literature and many morphotypes do not fit any described taxa, which has impeded the implementation of conservation measures. We performed a phylogenomic revision studying c. 900 collections morphologically, and sequencing 638 nuclear genetic markers of 180 representative specimens up to 90 years old, including all the described species and some undescribed morphotypes. Our results show that Capurodendron may contain up to 21 undescribed species in addition to the 35 already known. Nine of these are confirmed as valid species supported by genetic, morphological, and ecological data, and we describe them here (Capurodendron ainae, C. ambanizanense, C. antilahimenae, C. christeae, C. nataliae, C. ratovosonii, C. razakamalalae, C. sommerae, and C. vulcanicola). For the remaining 12 candidate new species, three are genetically analysed but require more sampling, and nine are only supported by morphological and ecological data so far, and therefore require genetic analyses to confirm their validity. For practical purposes and to assist with conservation assessments we provide an identification key, based mainly on vegetative characters, that also include the undescribed species.","PeriodicalId":9178,"journal":{"name":"Botanical Journal of the Linnean Society","volume":null,"pages":null},"PeriodicalIF":2.4,"publicationDate":"2024-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140311946","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Pollination of thermogenic inflorescence of Pandanus odorifer by a specialist Amystrops sap beetle that reproduces on the male inflorescence 一种在雄花序上繁殖的专性甲虫为臭椿的热源花序授粉

IF 2.4 2区生物学

Botanical Journal of the Linnean Society Pub Date : 2024-03-27 DOI: 10.1093/botlinnean/boae012

Toru Miyamoto, Ko Mochizuki, Atsushi Kawakita

{"title":"Pollination of thermogenic inflorescence of Pandanus odorifer by a specialist Amystrops sap beetle that reproduces on the male inflorescence","authors":"Toru Miyamoto, Ko Mochizuki, Atsushi Kawakita","doi":"10.1093/botlinnean/boae012","DOIUrl":"https://doi.org/10.1093/botlinnean/boae012","url":null,"abstract":"Pandanus is a morphologically unique plant group of the Paleotropical flora, with approximately 450 known species occupying diverse habitats. Because the male inflorescences of this genus are pendent and nectarless, they are commonly assumed to be wind-pollinated; however, their floral scent coupled with the observation that female inflorescences mature while still covered by bracts suggest the possibility of an alternative pollination mechanism. We studied the pollination system of Pandanus odorifer in subtropical Japan. A peroxidase assay was conducted to determine the timing of stigma receptivity, which showed that the stigmas were sensitive to peroxidase while the female inflorescences were covered by bracts. We found numerous pollen-bearing adult beetles of the genus Amystrops on both male and female inflorescences. Nitidulid larvae were also found on male inflorescences, and the larvae became adults of the same Amystrops species as found on the inflorescences by feeding only on Pandanus pollen. Last, floral temperature was monitored to test for floral thermogenesis. Both male and female inflorescences were thermogenic at night when insect visitation occurred. This study provides the first examples of insect pollination and floral thermogenesis in Pandanaceae. Most known Amystrops species are associated with Pandanus inflorescences, suggesting a widespread, specialized Pandanus–Amystrops association.","PeriodicalId":9178,"journal":{"name":"Botanical Journal of the Linnean Society","volume":null,"pages":null},"PeriodicalIF":2.4,"publicationDate":"2024-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140312036","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Phylogenetics, character evolution, and historical biogeography of the Neotropical genus Besleria (Gesneriaceae) Besleria 属（Gesneriaceae）的系统发生学、特征进化和历史生物地理学

IF 2.4 2区生物学

Botanical Journal of the Linnean Society Pub Date : 2024-03-26 DOI: 10.1093/botlinnean/boae007

Gabriel E Ferreira, John L Clark, Laura Clavijo, Alejandro Zuluaga, Alain Chautems, Michael J G Hopkins, Andrea O Araujo, Mathieu Perret

{"title":"Phylogenetics, character evolution, and historical biogeography of the Neotropical genus Besleria (Gesneriaceae)","authors":"Gabriel E Ferreira, John L Clark, Laura Clavijo, Alejandro Zuluaga, Alain Chautems, Michael J G Hopkins, Andrea O Araujo, Mathieu Perret","doi":"10.1093/botlinnean/boae007","DOIUrl":"https://doi.org/10.1093/botlinnean/boae007","url":null,"abstract":"Besleria, a genus of perennial herbs, shrubs, or small trees growing in the understorey of rainforests, is one of the largest genera of neotropical Gesneriaceae, with over 165 species. Despite the ecological importance and ubiquity of Besleria in rainforest ecosystems, taxonomic and evolutionary studies of Besleria are limited. Here, we generated a phylogenetic analysis of Besleria using four nuclear and chloroplast DNA regions (ITS, matK, rps16, and trnL-trnF) covering more than 50% of the recognized species, along with two secondary calibration points to infer divergence times. Our results support the monophyly of Besleria and allowed us to revise the infrageneric classification and biogeographical history of the genus. We identified five major clades that do not correspond to sections or subsections in previous classifications. These clades are well circumscribed geographically but remain difficult to characterize using previously hypothesized morphological characters. Biogeographical reconstructions indicate an origin in the northern Andes during the Middle Miocene (ca. 15 Mya). The current distribution patterns of this plant group have been significantly shaped by geological and climatic events, particularly Andean uplift and the formation of the Panama Isthmus.","PeriodicalId":9178,"journal":{"name":"Botanical Journal of the Linnean Society","volume":null,"pages":null},"PeriodicalIF":2.4,"publicationDate":"2024-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140311944","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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