Deep reticulation: the long legacy of hybridization in vascular plant evolution

The Plant Journal, Год журнала: 2023, Номер 114(4), С. 743 - 766

Опубликована: Фев. 13, 2023

Hybridization has long been recognized as a fundamental evolutionary process in plants but, until recently, our understanding of its phylogenetic distribution and biological significance across deep scales largely obscure. Over the past decade, genomic phylogenomic datasets have revealed, perhaps not surprisingly, that hybridization, often associated with polyploidy, common throughout history plants, particularly various lineages flowering plants. However, studies also highlighted challenges disentangling signals ancient hybridization from other sources conflict (in particular, incomplete lineage sorting). Here, we provide critical review vascular outlining well-documented cases plant phylogeny, well unique to documenting versus recent hybridization. We definition for which, knowledge, explicitly attempted before. Further extent reticulation should remain an important research focus, especially because published examples likely represent tip iceberg terms total future increasingly explore macroevolutionary this process, impact on trajectories (e.g. how does influence trait evolution or generation biodiversity over time scales?), life ecological factors shape, shaped, frequency geologic phylogeny. Finally, consider implications ubiquitous conceptualize, analyze, classify Networks, opposed bifurcating trees, more accurate representations many cases, although ability infer, visualize, use networks comparative analyses is highly limited. Developing improved methods generation, visualization, represents direction biology. Current classification systems do generally allow recognition reticulate lineages, classifications themselves are based evidence chloroplast genome. Updating better reflect nuclear phylogenies, considering whether recognize systems, will challenge systematics community.

Язык: Английский

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Disintegration of the genus Prosopis L. (Leguminosae, Caesalpinioideae, mimosoid clade)

PhytoKeys, Год журнала: 2022, Номер 205, С. 147 - 189

Опубликована: Авг. 22, 2022

Robust evidence from phylogenomic analyses of 997 nuclear genes has recently shown, beyond doubt, that the genus

Язык: Английский

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Precipitation is the main axis of tropical plant phylogenetic turnover across space and time

Science Advances, Год журнала: 2023, Номер 9(7)

Опубликована: Фев. 17, 2023

Early natural historians—Comte de Buffon, von Humboldt, and De Candolle—established environment geography as two principal axes determining the distribution of groups organisms, laying foundations for biogeography over subsequent 200 years, yet relative importance these remains unresolved. Leveraging phylogenomic global species data Mimosoid legumes, a pantropical plant clade c. 3500 species, we show that water availability gradient from deserts to rain forests dictates turnover lineages within continents across tropics. We demonstrate 95% speciation occurs precipitation niche, showing profound phylogenetic niche conservatism, lineage boundaries coincide with isohyets precipitation. reveal similar patterns on different continents, implying evolution dispersal follow universal processes.

Язык: Английский

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Advances in Legume Systematics 14. Classification of Caesalpinioideae. Part 2: Higher-level classification

PhytoKeys, Год журнала: 2024, Номер 240, С. 1 - 552

Опубликована: Апрель 3, 2024

Caesalpinioideae is the second largest subfamily of legumes (Leguminosae) with ca. 4680 species and 163 genera. It an ecologically economically important group formed mostly woody perennials that range from large canopy emergent trees to functionally herbaceous geoxyles, lianas shrubs, which has a global distribution, occurring on every continent except Antarctica. Following recent re-circumscription 15 genera as presented in Advances Legume Systematics 14, Part 1, using basis phylogenomic analysis 997 nuclear gene sequences for 420 all but five currently recognised subfamily, we present new higher-level classification subfamily. The comprises eleven tribes, are either new, reinstated or re-circumscribed at this rank: Caesalpinieae Rchb. (27 / 223 species), Campsiandreae LPWG (2 5–22), Cassieae Bronn (7 695), Ceratonieae (4 6), Dimorphandreae Benth. 35), Erythrophleeae /13), Gleditsieae Nakai (3 20), Mimoseae (100 3510), Pterogyneae (1 1), Schizolobieae (8 42–43), Sclerolobieae & Hook. f. (5 113). Although many these lineages have been named past, tribes informal generic groups, their circumscriptions varied widely changed over past decades, such described here differ membership those previously recognised. Importantly, approximately 3500 100 former Mimosoideae now placed reinstated, newly circumscribed, tribe Mimoseae. Because size ecological importance tribe, also provide clade-based system includes 17 lower-level clades. Fourteen remain unplaced clades: eight resolved two grades six phylogenetically isolated monogeneric lineages. In addition classification, key genera, morphological descriptions notes diversity growth forms, foliage, flowers fruits illustrated each genus distribution map, based quality-controlled herbarium specimen localities. A glossary specialised terms used legume morphology provided. This provides solid communication framework downstream analyses biogeography, trait evolution diversification, well taxonomic revision still understudied

Язык: Английский

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Nuclear phylogenomics of angiosperms and insights into their relationships and evolution

Journal of Integrative Plant Biology, Год журнала: 2024, Номер 66(3), С. 546 - 578

Опубликована: Янв. 30, 2024

Angiosperms (flowering plants) are by far the most diverse land plant group with over 300,000 species. The sudden appearance of angiosperms in fossil record was referred to Darwin as "abominable mystery," hence contributing heightened interest angiosperm evolution. display wide ranges morphological, physiological, and ecological characters, some which have probably influenced their species richness. evolutionary analyses these characteristics help address questions diversification require well resolved phylogeny. Following great successes phylogenetic using plastid sequences, dozens thousands nuclear genes from next-generation sequencing been used phylogenomic analyses, providing phylogenies new insights into evolution angiosperms. In this review we focus on recent large clades, orders, families, subdivisions families provide a summarized Nuclear Phylogenetic Tree Angiosperm Families. newly established relationships highlighted compared previous results. sequenced genomes Amborella, Nymphaea, Chloranthus, Ceratophyllum, monocots, Magnoliids, basal eudicots, facilitated phylogenomics among five major clades. All but one 64 orders were included except placements several orders. Most robust highly supported placements, especially for within important families. Additionally, examine divergence time estimation biogeographic basis frameworks discuss differences analyses. Furthermore, implications ancestral reconstruction characters groups, limitations current studies, taxa that future attention.

Язык: Английский

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From forest to savanna and back to forest: Evolutionary history of the genus Dimorphandra (Fabaceae)

Journal of Plant Research, Год журнала: 2024, Номер 137(3), С. 377 - 393

Опубликована: Фев. 19, 2024

Язык: Английский

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Complete genus‐level phylogenomics and new subtribal classification of the pantropical plant family Annonaceae

Taxon, Год журнала: 2024, Номер 73(6), С. 1341 - 1369

Опубликована: Окт. 9, 2024

Abstract Annonaceae is a major tropical plant family particularly diverse in rain forests of the world. Although classification and systematics has significantly improved over past decade, most recent was based on reduced set plastid markers incomplete genus‐level taxon sampling. This recognised 4 subfamilies 20 tribes. Yet, several important problems persisted, especially phylogenetic placement African genus Meiocarpidium , resolution intertribal relationships within subfamily Malmeoideae, tribe Miliuseae with 23 genera, contrasting liana Artabotrys when using nuclear versus data. Here, previously published Annonaceae‐specific bait kit, we generated for first time complete (108 taxa) phylogenomic tree 373 loci. We show that sister to Ambavioideae should be considered as not separate subfamily. recovered belonging Duguetieae, Xylopieae inferred data, two other Letestudoxa Pseudartabotrys . Finally, were able resolve Malmeoideae Miliuseae. Nevertheless, strong gene conflict mainly at backbone tribe, probably linked rapid diversification its origin, leading substantial lineage sorting. suggest this will hard resolve. Using novel framework recognize 25 subtribes, 21 new, improve infrafamilial Annonaceae.

Язык: Английский

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Advances in systematics of Mimosa (Fabaceae): phylogeny and biogeography of the Petiolovariabilis clade

Botanical Journal of the Linnean Society, Год журнала: 2025, Номер unknown

Опубликована: Янв. 7, 2025

Abstract This study analyses the phylogeny of clade Petiolovariabilis, proposed herein, within genus Mimosa. comprises 26 species (31 taxa), predominantly cespitose, decumbent and procumbent herbs or subshrubs, but also includes climbing armed erect shrubs. These are primarily distributed in Brazilian highlands basins São Francisco, Paraná, Tocantins rivers. Phylogenetic were based on six loci (both plastidial nuclear), focusing taxa from M. sect. Batocaulon ser. Campicolae, Echinocaulae, Filipedes, Paucifoliatae. Within Petiolovariabilis clade, relationships resolved, three child clades described following PhyloCode guidelines. research emphasizes informative traits such as seed pleurogram flower merosity, alongside other important vegetative characters a taxonomic context, prickles, petiole morphology, leaf pinnae/leaflet numbers. Ancestral area reconstructions for major lineages integrating phylogenetic curated geographic data, shed light dispersal speciation events clade. The addresses challenges related to distinguishing current infrageneric classification Overall, this enhances our understanding evolutionary history Mimosa provides valuable insights future studies.

Язык: Английский

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The Fabaceae in Northeastern Mexico (Subfamily Papilionoideae, Tribes Amorpheae, Brongniartieae, and Dalbergieae)

Plants, Год журнала: 2025, Номер 14(5), С. 789 - 789

Опубликована: Март 4, 2025

A compendium of the legumes subfamily Papilionoideae, tribes Amorpheae, Brongniarteae, and Dalbergieae in northeastern Mexico is presented for first time, including changes their botanical nomenclature within genera. Based on recently published studies, taxonomic limits several genera new ones segregated such as Marina Ctenodon are clarified included. mainly fieldwork over past 40 years, well reviewing specimens national international herbaria, we show total diversity Dalbergieae. The three include 16 75 species. Tribe Amorpheae comprises five (Amorpha, Dalea, Eysenhardtia, Marina, Psorothamnus) forty-three species; tribe Brongniartieae two Brongniartia Harpalyce) eight nine (Aeschynomene, Amicia, Arachis, Ctneodon, Dalbergia, Diphysa, Nissolia, Stylosanthes, Zornia) twenty-four Dalea by far genus with highest number species infraspecific categories, a endemisms because 17 (51%) them endemic to Mexico, six part country. Of 13 Eysenhardtia present 31% reach northeast region exclusive this region. There no but 10 Mexico.

Язык: Английский

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Phylogeny of Cassieae based on seed morphological and ITS evidence

PeerJ, Год журнала: 2025, Номер 13, С. e18947 - e18947

Опубликована: Март 20, 2025

The Cassieae tribe, comprising economically significant species, is understudied in terms of phylogenetics within China. This study aimed to elucidate the taxonomic status and systematic relationships among species by integrating seed coat micro-morphological characteristics with molecular data from internal transcribed spacer (ITS) region nuclear ribosomal DNA. (1) results indicate that tribe classified into seven distinct clades; Clade V consists Chamaecrista , which characterized primarily monosymmetric flowers occasional asymmetry, presence extrafloral nectaries (EFNs), five or ten stamens, pods dehisce elastically. VI associated Senna displays polysymmetric flowers, uniformly stamens occasionally three staminodes, variable EFNs, predominantly indehiscent pods, rare instances slit dehiscence. VII Cassia exhibits consistently stamens—three are elongated curved, typically exceeding length petals—and pods. (2) monophyly was strongly supported, grouping closely but distantly . (3) It noteworthy occidentail sophera confirmed as sister taxa, while corymbosa S. bicapsularis taxa. By biology morphological taxonomy, this research enhances our comprehension phylogenetic evolutionary history

Язык: Английский

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