Phylogenomics, biogeography, and evolution of the blue‐ or white‐fruited dogwoods (Cornus)—Insights into morphological and ecological niche divergence following intercontinental geographic isolation

Journal of Systematics and Evolution, Год журнала: 2020, Номер 58(5), С. 604 - 645

Опубликована: Авг. 27, 2020

Abstract The eastern Asian (EA)–eastern North American (ENA) floristic disjunction represents a major pattern of phytogeography the Northern Hemisphere. Despite 20 years studies dedicated to identification taxa that display this disjunct pattern, its origin and evolution remain an open question, especially regarding post‐isolation evolution. blue‐ or white‐fruited dogwoods (BW) are most species‐rich among four clades Cornus L., consisting ~35 species divided into three subgenera (subg. Yinquania , subg. Mesomora Kraniopsis ). BW group provides excellent example EA–ENA for biogeographic study due diversity distribution centered in Asia America, yet relationships delineation have remained poorly understood. In study, we combined genome‐wide markers from RAD‐seq, morphology, fossils, climate data understand relationships, history, ecological niche morphological Our phylogenomic analyses with RAxML MrBayes recovered strongly supported well‐resolved phylogeny intercontinental EA ENA Eurasia which two newly identified within . These also potential new but failed resolve C. hemsleyi – schindleri complex. effort develop approach reduce computation time, analysis different nodal age settings treePL suggests setting node's minimum constraint lower bound fossil's range obtain similar ages BEAST. Divergence time BEAST dated stem back very Late Cretaceous divergence Paleogene. By integrating fossil total evidence‐based dating was used conjunction time‐slice probabilities dispersal under DEC model ancestral ranges each Miocene: (disjunct 1), western America 2), 3). history supports via Atlantic Land Bridge late Paleogene 1 Bering Miocene disjuncts 2 3. Character mapping stochastic phytools comparison niche, morphospace, rate indicated differential patterns molecules between sisters. Although stasis observed characters, evolutionary changes growth habit some features leaf, flower, fruit morphology occurred one both sister clades. A significant differentiation habitats temperature, precipitation, elevation sisters observed, suggesting role post‐isolation. varied were not always congruent molecules, cases non‐neutral driven by selection. phylogenetic evidence comparisons lineages lend insights formation anomaly ENA, particular support early diversification EA. findings, previous studies, again suggest floras assembly descended Mesophytic Forests evolved “boreotropical flora” through pathways across lineages.

Язык: Английский

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Genetic diversity and phylogeography of Japanese brome ( Bromus japonicus Thunb. ex Murr.) populations in China

Biotechnology & Biotechnological Equipment, Год журнала: 2024, Номер 38(1)

Опубликована: Март 4, 2024

Japanese brome (Bromus japonicus Thunb. ex Murr.) is a pervasive annual weed with wide distribution in winter wheat fields across the North China Plain. In this study, we researched genetic diversity and phylogeography of 24 B. populations based on total genomic DNA chloroplast DNA. The results showed that 106 fragments were scored using 12 inter-simple sequence repeat (ISSR) primers, 101 (95.28%) polymorphic. findings revealed substantial differentiation among from different locations (Ht = 0.2125, Hs 0.0730, Gst 0.6562 Nm 0.2619). Mean values Nei's (H) Shannon index (I) 0.0731 0.1068, respectively. addition, 15 haplotypes identified combined cpDNA regions exhibiting abundant haplotype (gene) nucleotide diversity. AMOVA ISSR both variation mainly exists rather than within them. STRUCTURE analysises indicated geographical location relationship had no significant correlation. network also illustrated widespread (H1, H2) might represent ancient polymorphism. obtained study demonstrate presence extensive variability Chinese japonicus, which likely to contribute significantly its adaptability infestation as species.

Язык: Английский

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Climatic niche evolution and niche conservatism of Nymphaea species in Africa, South America, and Australia

BMC Plant Biology, Год журнала: 2024, Номер 24(1)

Опубликована: Май 30, 2024

Abstract Background Interest in the evolution of climatic niches, particularly understanding potential adaptive responses species under climate change, has increased both theoretically and within macroecological studies. These studies have provided valuable insights into how traits influence their niche evolution. In this study, we aim to investigate whether conservatism plays a role diversification Nymphaea , group aquatic plants with cosmopolitan distribution that is facing severe habitat loss. We will use models phylogenetic data for 23 reconstruct ’s evolution, measure overlap, assess disparity through time while testing evolutionary models. Results There was lot overlap niches between groups, especially can be found many places. The breadth peaks profile varied depending on bioclimatic variables, which suggested evolved differently cope changes climate. analysis also showed happened across phylogeny, weak moderate signals. morphological index (MDI) values indicated there were disparities subclades over but not or among them. Niche reconstruction revealed convergent divergent various variables. For example, N. immutabilis atrans violancea nouchali towards intermediate temperatures bio2 bio3 (isothermity) moving extreme bio8 bio9 (wettest driest average quarterly temperatures). Conclusion Our study improve our are potentially driving . It significant scientific implications limits, assemblages, species. This information crucial ongoing efforts conservation management, considering inevitable effects change.

Язык: Английский

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An updated phylogeny, biogeography, and PhyloCode‐based classification of Cornaceae based on three sets of genomic data

American Journal of Botany, Год журнала: 2022, Номер 110(2)

Опубликована: Дек. 8, 2022

A major goal of systematic biology is to uncover the evolutionary history organisms and translate that knowledge into stable classification systems. Here, we integrate three sets genome-wide data resolve phylogenetic relationships in Cornaceae (containing only Cornus s.l.), reconstruct biogeographic clade, provide a revised using PhyloCode stabilize names for this taxonomically controversial group.We conducted analyses 312 single-copy nuclear genes 70 plastid from Angiosperms353 Hyb-Seq, plus numerous loci RAD-Seq. We integrated fossils morphological produced dated phylogeny biogeographical analysis.A well-resolved, strongly supported, comprehensive was obtained. Biogeographic support an origin rapid diversification four morphologically distinct clades Northern Hemisphere (with eastern Asian ancestor) during late Cretaceous. Dispersal Africa Asia likely occurred along Tethys Seaway Paleogene, whereas dispersal South America Neogene. Diversification within northern hemisphere involved repeated independent colonization new areas Paleogene Neogene Bering Land Bridge, North Atlantic Seaway. Thirteen supported were named following rules PhyloCode.Our study provides example integrating genomic produce robust, explicit species includes fossil taxa, which updated scheme names.

Язык: Английский

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Incomplete lineage sorting and local extinction shaped the complex evolutionary history of the Paleogene relict conifer genus, Chamaecyparis (Cupressaceae)

Molecular Phylogenetics and Evolution, Год журнала: 2022, Номер 172, С. 107485 - 107485

Опубликована: Апрель 19, 2022

Язык: Английский

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Phylogenomics AND biogeography of Castanea (chestnut) and Hamamelis (witch-hazel) – Choosing between RAD-seq and Hyb-Seq approaches

Molecular Phylogenetics and Evolution, Год журнала: 2022, Номер 176, С. 107592 - 107592

Опубликована: Авг. 1, 2022

Язык: Английский

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Phylogenetic relationships and biogeography of Asia Callicarpa (Lamiaceae), with consideration of a long-distance dispersal across the Pacific Ocean —insights into divergence modes of pantropical flora

Frontiers in Plant Science, Год журнала: 2023, Номер 14

Опубликована: Май 15, 2023

There are about 140 species of Callicarpa L. 1753 (Lamiaceae), with more richness in tropical to subtropical Asia and the New World. The genus might provide an insight into amphi-Pacific disjunction pattern vegetation. This study has greatly improved phylogenetic underpinning for Callicarpa, derived from inclusive taxonomic samplings, employing data on both two-nuclear eight-chloroplast regions. To address time patterns diversification we conducted divergence biogeographic analyses, inferred shifts distribution areas across clades. Our results show that is monophyletic respect groups considered, eight well-supported primary clades were discerned combined analyses. estimates indicated crown group originates around Late-Eocene (ca. 36.23 Ma) within most concentrated Miocene continued Pleistocene. In addition, our analyses suggested probable ancestor clade originated East Southeast Asia. Multiple dispersal vicariance events contributed current taxa. Furthermore, this expanded eastward out World by long-distance dispersal, which inspired us better understand disjunct distribution.

Язык: Английский

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Foliar endophyte diversity in Eastern Asian-Eastern North American disjunct tree species – influences of host identity, environment, phylogeny, and geographic isolation

Frontiers in Plant Science, Год журнала: 2023, Номер 14

Опубликована: Дек. 13, 2023

Introduction The well-known eastern Asian (EA) and North American (ENA) floristic disjunction provides a unique system for biogeographic evolutionary studies. Despite considerable interest in the disjunction, few studies have investigated patterns their underlying drivers of allopatric divergence sister species or lineages isolated two areas. Endophyte diversity assembly disjunct taxa, as an ecological trait, may played important role processes evolution, but no examined endophytes these lineages. Here we compared foliar endophytic fungi bacteria-archaea (FEF FEB) 17 EA-ENA clade pairs from genera representing conifers 10 orders five major groups angiosperms 23 Cornus EA America. Methods Metagenomic sequencing fungal ITS bacterial-archaeal 16S rDNA was used to capture communities. Alpha beta bacteria were at multiple scales dimensions gain insights into relative roles historical geographic isolation, host identity, phylogeny, environment samples different sites shaping patterns. Results We found that varied greatly among plant individuals within between same sampling site, three sites, little variation region-of-origin all (EA vs ENA) counterparts genera. Various numbers indicator differing abundance identified each genus species. An overall significant correlation endophyte community dissimilarity phylogenetic distance plants detected not . However, correlations diversities taxonomic distances observed. Discussion Our results suggest identity (sampling sites), likely minor isolation pattern lead hypothesis taxa ENA differ FEF FEB when growing native habitats due differences local environments, which potentially drive functional features

Язык: Английский

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Taxonomy and biogeography ofDiapensia(Diapensiaceae) based on chloroplast genome data

Journal of Systematics and Evolution, Год журнала: 2020, Номер 58(5), С. 696 - 709

Опубликована: Май 7, 2020

Abstract Diapensia L. is the second largest genus of Diapensiaceae. The taxonomic treatment within and relationships Diapensiaceae have been disputed. Chloroplast genome sequence data proved to be useful for plant phylogenetic analyses species delimitation. In this study, we de novo sequenced assembled 22 chloroplast genomes 15 Diapensiaceae, including all recognized with multiple samples. A super‐matrix containing a total 107 genes 18 taxa was constructed resolve among genera family . resulting tree showed following strongly supported relationships: ( Galax , Pyxidanthera Berneuxia (( Schizocodon, ), Shortia s.s .)))). dated phylogeny reconstructed lineage‐through‐time plot indicated rapid diversification in Neogene an acceleration rate after c. 8 Ma. Biogeographic analysis suggested that originated Northeast Asian mountains approximately 6.06 Ma, followed by northward dispersal Arctic southwestward Himalaya–Hengduan Mountains. Phylogenetic were well resolved. Based on results, proposed reinstate status bulleyana Forrest ex Diels, raised D. purpurea f. albida rank [W. E. Evans] J. F. Ye comb. & stat. nov.). distribution ranges delineated based results revised accordingly specimen occurrences. Our study adds new examples power plastid resolving clarifying disputes closely related species.

Язык: Английский

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Five long-distance dispersals shaped the major intercontinental disjunctions in Tectariaceae s.l. (Polypodiales, Polypodiopsida)

Molecular Phylogenetics and Evolution, Год журнала: 2023, Номер 186, С. 107845 - 107845

Опубликована: Июнь 9, 2023

Язык: Английский

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