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

PhytoKeys, Journal Year: 2022, Volume and Issue: 205, P. 147 - 189

Published: Aug. 22, 2022

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

Language: Английский

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

Science Advances, Journal Year: 2023, Volume and Issue: 9(7)

Published: Feb. 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.

Language: Английский

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

PhytoKeys, Journal Year: 2024, Volume and Issue: 240, P. 1 - 552

Published: April 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

Language: Английский

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Freezing and water availability structure the evolutionary diversity of trees across the Americas

Science Advances, Journal Year: 2020, Volume and Issue: 6(19)

Published: May 6, 2020

The historical course of evolutionary diversification shapes the current distribution biodiversity, but main forces constraining are still a subject debate. We unveil structure tree species assemblages across Americas to assess whether an inability move or evolve is predominant constraint in plant and biogeography. find fundamental divide lineage composition between tropical extratropical environments, defined by absence versus presence freezing temperatures. Within Neotropics, we uncover further split moist dry forests. Our results demonstrate that American lineages tend retain their ancestral environmental relationships phylogenetic niche conservatism primary force structuring biodiversity. study establishes pervasive importance community assembly even at intercontinental scales.

Language: Английский

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Phylogenomic analysis of 997 nuclear genes reveals the need for extensive generic re-delimitation in Caesalpinioideae (Leguminosae)

PhytoKeys, Journal Year: 2022, Volume and Issue: 205, P. 3 - 58

Published: Aug. 22, 2022

Subfamily Caesalpinioideae with ca. 4,600 species in 152 genera is the second-largest subfamily of legumes (Leguminosae) and forms an ecologically economically important group trees, shrubs lianas a pantropical distribution. Despite major advances last few decades towards aligning clades across Caesalpinioideae, generic delimitation remains state considerable flux, especially mimosoid clade. We test monophyly via phylogenomic analysis 997 nuclear genes sequenced targeted enrichment (Hybseq) for 420 147 currently recognised subfamily. show that 22 are non-monophyletic or nested other non-monophyly concentrated clade where 25% 90 found to be non-monophyletic. suggest two main reasons this pervasive non-monophyly: (i) extensive morphological homoplasy we document here handful traits and, particularly, repeated evolution distinctive fruit types were historically emphasised delimiting (ii) artefact lack taxonomic syntheses sampling previous phylogenies consequent failure identify span Old World New conversely amphi-Atlantic non-monophyletic, both which critical large Finally, discuss taxon era how assessing patterns gene tree conflict can provide additional insights into delimitation. This new framework provides foundations series papers reclassifying presented

Language: Английский

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The Origins and Historical Assembly of the Brazilian Caatinga Seasonally Dry Tropical Forests

Frontiers in Ecology and Evolution, Journal Year: 2022, Volume and Issue: 10

Published: Feb. 24, 2022

The Brazilian Caatinga is considered the richest nucleus of Seasonally Dry Tropical Forests (SDTF) in Neotropics, also exhibiting high levels endemism, but timing origin and evolutionary causes its plant diversification are still poorly understood. In this study, we integrate comprehensive sampled dated molecular phylogenies multiple flowering groups estimations ancestral areas to elucidate forces driving historical assembly plants. Our results show a pervasive floristic exchange between other neotropical regions, particularly those adjacent. While some lineages arose Eocene/Oligocene, most dry-adapted endemic found region emerged from middle late Miocene until Pleistocene, indicating that only during period started coalesce into SDTF like see today. findings temporally congruent with global regional aridification events extensive denudation thick layers sediments Northeast (NE) Brazil. We hypothesize processes have played important role ancient long-term biome stability, whereas climate-induced vegetation shifts, as well newly opened habitats largely contributed drivers situ region. Patterns phylogenetic relatedness clades revealed much modern species diversity has originated likely evolved via recent (Pliocene/Pleistocene) ecological specialization triggered by increased environmental heterogeneity exhumation edaphically disparate substrates. continuous flora been complex, adding growing evidence origins distinct patches idiosyncratic across driven not just continental-scale unique features regional-scale geological history.

Language: Английский

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Phylogeny and climate explain contrasting hydraulic traits in different life forms of 150 woody Fabaceae species

Journal of Ecology, Journal Year: 2024, Volume and Issue: 112(4), P. 741 - 754

Published: Jan. 23, 2024

Abstract The contrasting hydraulic traits observed among different plant life forms are shaped by entangled environmental and evolutionary processes. However, we lack understanding of the relative importance form, climate phylogeny in explaining variance traits. We analysed seven eleven climatic variables 150 Fabaceae species representing three from 62 sites worldwide, using phylogenetic comparative analyses partitioning. signal found most disappeared after considering indicating that conservatism originated divergence forms. trait‐climate relationships were also phylogenetically dependent, implying trait responses driven together. Variance partitioning showed explained greater variation than form did. Synthesis . climate‐driven still existed with being considered, suggesting this large family may be particularly sensitive to change. Our results emphasise need include adaptation studies under future

Language: Английский

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Global biogeographic patterns of the genus Indigofera (Fabaceae: Indigofereae)

Revista Brasileira de Botânica, Journal Year: 2025, Volume and Issue: 48(1)

Published: Jan. 2, 2025

Abstract Indigofera L. is the most diverse genus in tribe Indigofereae and third largest Fabaceae with over 750 species distributed tropical to temperate areas of world. The centre diversity lies on African continent, accounting for two-thirds its global diversity. Diversification Indigofer a’s four main clades began Early Miocene, Tethyan Cape Clades having slightly older crown ages than Pantropical Paleotropical Clades. Using biogeographical models under a newly assembled, more comprehensively-sampled ITS phylogeny, we confirmed that originated Africa-Madagascar centre, resolving mainland origin c. 38 Mya. Long-distance dispersals were rare, but did occur from Africa South America Australia during late Miocene. Multiple into Asia took place via arid north-east Arabian corridors same period. At least Madagascar Clade narrowly endemic lineage, mostly restricted Greater Floristic Region (GCFR) southwestern Africa, while Tethyan, are widely dispersed across multiple continents. Both display strong signals origins southern Namib Richtersveld regions Southwestern Africa. This study emphasizes importance Succulent biome shaping patterns globally, particularly terms conservatism how it created facilitating trans-continental dispersal.

Language: Английский

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Hybrid capture of 964 nuclear genes resolves evolutionary relationships in the mimosoid legumes and reveals the polytomous origins of a large pantropical radiation

American Journal of Botany, Journal Year: 2020, Volume and Issue: 107(12), P. 1710 - 1735

Published: Nov. 30, 2020

PREMISE Targeted enrichment methods facilitate sequencing of hundreds nuclear loci to enhance phylogenetic resolution and elucidate why some parts the “tree life” are difficult (if not impossible) resolve. The mimosoid legumes a prominent pantropical clade ~3300 species woody angiosperms for which previous phylogenies have shown extensive lack resolution, especially among species‐rich taxonomically challenging ingoids. METHODS We generated transcriptomes select low‐copy genes, enrich these via hybrid capture representative most genera, analyze resulting data using de novo assembly various phylogenomic tools tree inference. also evaluate gene support conflict key internodes use network analysis investigate signal across RESULTS Our selection 964 genes greatly improves phylogeny shows that ingoid can be resolved into several well‐supported clades. However, nearly all show deeper within CONCLUSIONS Lack in is likely result hyperfast diversification, potentially causing hard polytomy six or seven lineages. set targeted presented here offers great potential further mimosoids wider Caesalpinioideae with denser taxon sampling, provide framework taxonomic reclassification, study radiation.

Language: Английский

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Joint Phylogenetic Estimation of Geographic Movements and Biome Shifts during the Global Diversification ofViburnum

Systematic Biology, Journal Year: 2020, Volume and Issue: 70(1), P. 67 - 85

Published: April 2, 2020

Abstract Phylogeny, molecular sequences, fossils, biogeography, and biome occupancy are all lines of evidence that reflect the singular evolutionary history a clade, but they most often studied separately, by first inferring fossil-dated phylogeny, then mapping on ancestral ranges biomes inferred from extant species. Here we jointly model evolution biogeographic ranges, affinities, while incorporating fossils to estimate dated phylogeny for 163 species woody plant clade Viburnum (Adoxaceae) currently recognize in our ongoing worldwide monographic treatment group. Our analyses indicate major lineages evolved Eocene, majority originated since Miocene. radiated Asia, warm, broad-leaved evergreen (lucidophyllous) forests. Within infer several early shifts into more tropical forests, multiple forests experience prolonged freezing. From two movements New World. These probably occupied warm temperate adapted later spreading cold climates. One these (Porphyrotinus) cloud moved south through mountains Neotropics. Several other North America took place recently, facilitated prior adaptations freezing Old We also four disjunctions between Asia Europe: Tinus lineage is oldest when it spread, whereas three were recent cold-adapted lineages. results variously contradict published accounts, especially view initially and, accordingly, maintained vessel elements with scalariform perforations. explored how location assignments affected inference areas states. sensitive to, not entirely dependent upon, inclusion fossil data. It will be critical take advantage available decipher events distant past. The joint estimation approach developed here provides cautious hope even limited. [Biogeography; biome; combined evidence; pollen; phylogeny; Viburnum.]

Language: Английский

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