ArticleAnnals of botany2025
Extensive genome-wide phylogenetic discordance is due to incomplete lineage sorting in the rapidly radiated East Asian genus Nekemias (Vitaceae).
Article in Annals of botany, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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2 citing papers in PubMed.
- Morphological and molecular evidence clarifies the taxonomic position of Indosasa solearis and reveals the hybrid origin of Sinobambusa (Poaceae: Bambusoideae: Arundinarieae).BMC plant biology · 2026Article
- Phylogenetic Insights from a NovelPlants (Basel, Switzerland) · 2025Article
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Abstract
BACKGROUND AND
aimsNekemias is a small genus of the grape family, with nine species discontinuously distributed in temperate to subtropical zones of the Northern Hemisphere but mostly in East Asia. Previous phylogenetic studies on Nekemias have mainly been based on a few chloroplast markers, and the phylogenetic framework and systematic relationships are still highly contested.
methodsWe carried out a systematic framework reconstruction of Nekemias and intra-generic reticulate evolutionary analyses based on extensive single-copy nuclear and chloroplast genomic data obtained by the Hyb-Seq approach, combining genome skimming and target enrichment. KEY
resultsBoth nuclear and chloroplast genomic data strongly support the monophyly of Nekemias with its division into two major lineages from East Asia and North America, respectively. There are strong and extensive topological conflicts among nuclear gene trees and between nuclear and chloroplast topologies within the genus, especially within the East Asian clade.
conclusionsRapid radiation through predominant incomplete lineage sorting (ILS) throughout the evolutionary history of the East Asian taxa is supported to explain the relatively high species diversity of Nekemias in East Asia. This study highlights the important role of short periods of rapid evolutionary radiations accompanied by ILS as a mechanism for the complex and fast species diversifications in the grape family as well as potentially in many other plant lineages in East Asia and beyond.
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