Phylotranscriptomics of Swertiinae (Gentianaceae) reveals that key floral traits are not phylogenetically correlated

Journal of Integrative Plant Biology, Journal Year: 2023, Volume and Issue: 65(6), P. 1490 - 1504

Published: Feb. 7, 2023

ABSTRACT Establishing how lineages with similar traits are phylogenetically related remains critical for understanding the origin of biodiversity on Earth. Floral in plants widely used to explore phylogenetic relationships and delineate taxonomic groups. The subtribe Swertiinae (Gentianaceae) comprises more than 350 species high floral diversity ranging from rotate tubular corollas possessing diverse nectaries. Here we performed analysis 60 all 15 genera sensu Ho Liu, representing range diversity, using data nuclear plastid genomes. Extensive topological conflicts were present between plastome trees. Three represented by multiple polyphyletic both Key including corolla type, absence or presence lobe scales, nectary position, stigma type randomly distributed trees without correlation. We also revealed likely ancient hybrid one large clade comprising 10 traits. These results highlight complex evolutionary history this subtribe. phylogenies constructed here provide a basic framework further exploring ecological genetic mechanisms underlying diversification diversity.

Language: Английский

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When tropical and subtropical congeners met: Multiple ancient hybridization events within Eriobotrya in the Yunnan‐Guizhou Plateau, a tropical‐subtropical transition area in China

Molecular Ecology, Journal Year: 2021, Volume and Issue: 31(5), P. 1543 - 1561

Published: Dec. 15, 2021

Global climate changes during the Miocene may have created ample opportunities for hybridization between members of tropical and subtropical biomes at boundary these zones. Yet, very few studies explored this possibility. The Yunnan-Guizhou Plateau (YGP) in Southwest China is a biodiversity hotspot vascular plants, located transitional area floristic regions Southeast Asia East Asia. genus Eriobotrya (Rosaceae) comprises both taxa, with 12 species recorded YGP, making it suitable basis testing hypothesis between-biome hybridization. Therefore, we surveyed evolutionary history by examining three chloroplast five nuclear genes 817 individuals (47 populations) 23 (including 19 populations YGP), plus genome re-sequencing 33 representative samples. We concluded that: (1) phylogenetic positions 16 exhibited strong cytonuclear conflicts, most probably due to ancient hybridization; (2) YGP hybridization, 11 showing clear evidence capture; (3) originated Eocene. From onwards, intensification Eastern monsoon global cooling shifted tropical-subtropical caused secondary contact species, thus providing opportunity diversification Eriobotrya, especially YGP. Our study highlights significant role that paleoclimate played driving generating rich diversity transition

Language: Английский

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Hyb‐Seq provides new insights into the phylogeny and evolution of the Chrysanthemum zawadskii species complex in China

Cladistics, Journal Year: 2022, Volume and Issue: 38(6), P. 663 - 683

Published: June 29, 2022

Abstract A species complex is an assemblage of closely related with blurred boundaries, and from which could arise different speciation processes and/or a continuum. Such can provide opportunity to investigate evolutionary mechanisms acting on speciation. The Chrysanthemum zawadskii in China, monophyletic group , consists seven considerable morphological variation, diverse habitats distribution patterns. Here, we used Hyb‐Seq data construct well‐resolved phylogeny the C. complex. Then, performed comparative analyses variation patterns morphology, ecology roles geography this complex’s diversification. Lastly, implemented divergence time estimation, modelling ancestral area reconstruction trace history We concluded that originated Qinling–Daba mountains during early Pliocene then spread west northward along mountain ranges northern China. During process, geographical ecological factors imposing influences resulted current diversification complex, composed both well‐diverged diverging lineages path

Language: Английский

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The lichen genus <i>Rinodina</i> (Physciaceae) in New Brunswick, Canada

The Canadian Field-Naturalist, Journal Year: 2024, Volume and Issue: 137(1), P. 32 - 63

Published: Jan. 15, 2024

Fifteen species of the crustose lichen genus Rinodina are confirmed in New Brunswick, Canada. We report four corticolous species, pachysperma, populicola, septentrionalis, and tenuis, saxicolous tephraspis province for first time. A previous granuligera is based on a specimen that we have re-identified as cinereovirens. note distinguishing characteristics, habitats, substrata, relative abundance, biogeographic relationships each provide an identification key distribution maps. The most frequently occupied phorophytes (tree substrata) Sugar Maple (Acer saccharum), Yellow Birch (Betula alleghaniensis), Eastern White Cedar (Thuja occidentalis). Some closely associated with particular phorophytes, or both. For example, found R. pachysperma only floodplain forests dominated by Silver saccharinum), tenuis wet cedar-dominated stands. In contrast, recorded freyi numerous phorophyte relatively wide range habitats. Other than Balsam Fir (Abies balsamea), conifers rarely colonized Brunswick. Most probably not currently conservation concern province. However, cinereovirens known from two collections, one dating 1902. other, 2007, was Black Ash (Fraxinus nigra) swamp forest next to active peat-mining operation. expected devastation ash invasive Emerald Ash-borer (Agrilus planipennis) further threat this occurrence any lichens which may be important phorophyte.

Language: Английский

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Phylogenomic analyses of the pantropical Platycerium Desv. (Platycerioideae) reveal their complex evolution and historical biogeography

Molecular Phylogenetics and Evolution, Journal Year: 2024, Volume and Issue: 201, P. 108213 - 108213

Published: Oct. 10, 2024

Language: Английский

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Estimation of Potential Suitable Habitats for the Relict Plant Euptelea pleiosperma in China via Comparison of Three Niche Models

Sustainability, Journal Year: 2023, Volume and Issue: 15(14), P. 11035 - 11035

Published: July 14, 2023

Climate change has a significant impact on species distribution, especially for the relict plants. Euptelea pleiosperma is type of tertiary plant. This plant shows decreasing trend in population size, and it edge extinction given background climate change. Understanding suitable habitats E. will provide academic value investigating conservation sustainable development. According to 236 distribution records China, 11 environmental factors, optimal model was selected from MaxEnt, BIOCLIM, DOMAIN models, aiming estimate future potential exploring major factors influencing pleiosperma. By comparison, BIOCLIM estimation, since achieved highest precision lowest standard error. Our results demonstrated that temperature most important factor affecting pleiosperma, followed by precipitation altitude. Under medium- high-emission scenarios, migrate northward high-latitude areas, whereas those under low-emission scenario southward low-latitude areas. During 2041–2060, habitat areas present positive trend, while during 2081–2100 exhibit negative varying degrees. Consistent with above results, advisable establish natural reserves seed resource banks current high suitability as well artificial assistance guide its migration scenarios. The findings this research not only reveal response but also lay reliable foundation

Language: Английский

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The origin and dispersal of Firmiana danxiaensis among isolated specific landscapes

Journal of Systematics and Evolution, Journal Year: 2023, Volume and Issue: 62(1), P. 102 - 119

Published: May 11, 2023

Abstract China has the most numerous Danxia and Karst landscapes, which serve as special terrestrial islands harboring ample endemic species, though how did these species spread among those isolated sites is still an unresolved issue. To address this question, we explored phylogeographical structure demographic history of Firmiana danxiaensis , a tree to landscapes. We collected 295 samples (28 populations) F. . Plastid genomes were assembled for 25 representative samples. Sanger sequencing four plastid regions restriction‐site‐associated DNA performed on 28 populations. The phylogenetic constructed from restriction site‐associated (RAD‐seq) data supported that originated Mount Nanxiong Basin, landscapes near Yingde City, then back Mountain Basin. In latter arrivals captured former. Population analyses revealed strong population within possibly due low seed pollen dispersal abilities species. ecological niche modeling approaches suggested have widely occurred in southeast during last glacial period, later retreated cliffs temperature rising competition failure. declining effective size throughout postglacial period global warming, agriculture, industrial civilizations could affected survival more measures should be taken conserve

Language: Английский

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Peering through the hedge: Multiple datasets yield insights into the phylogenetic relationships and incongruences in the tribe Lilieae (Liliaceae)

Molecular Phylogenetics and Evolution, Journal Year: 2024, Volume and Issue: 200, P. 108182 - 108182

Published: Aug. 31, 2024

Language: Английский

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Phylotranscriptomic analyses reveal the evolutionary complexity of Paris L. (Melanthiaceae), a morphologically distinctive genus with significant pharmaceutical importance

Annals of Botany, Journal Year: 2024, Volume and Issue: unknown

Published: Sept. 1, 2024

Previous phylogenetic studies on the pharmaceutically significant genus Paris (Melanthiaceae) have consistently revealed substantial cytonuclear discordance, yet underlying mechanism responsible for this phenomenon remains elusive. This study aims to reconstruct a robust nuclear backbone phylogeny and elucidate potential evolutionarily complex events contributing previously observed discordance within Paris.

Language: Английский

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Detection of Ghost Introgression from Phylogenomic Data Requires a Full-Likelihood Approach

bioRxiv (Cold Spring Harbor Laboratory), Journal Year: 2023, Volume and Issue: unknown

Published: April 30, 2023

A bstract In recent years, the study of hybridization and introgression has made significant progress, with ghost - transfer genetic material from extinct or unsampled lineages to extant species emerging as a key area for research. Accurately identifying introgression, however, presents challenge. To address this issue, we focused on simple cases involving three known phylogenetic tree. Using mathematical analyses simulations, evaluated performance popular methods, including HyDe PhyloNet/MPL, full-likelihood method, Bayesian Phylogenetics Phylogeography (BPP), in detecting introgression. Our findings suggest that heuristic approaches relying site patterns gene tree topologies struggle differentiate between sampled non-sister species, frequently leading incorrect identification donor recipient species. The method BPP using multilocus sequence alignments, by contrast, is capable phylogenomic datasets. We analyzed real-world dataset 14 Jaltomata (Solanaceae) showcase potential methods accurate inference

Language: Английский

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