ArticleAnnals of botany2020
Evolutionary history of a relict conifer, Pseudotaxus chienii (Taxaceae), in south-east China during the late Neogene: old lineage, young populations.
Article in Annals of botany, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.
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14 citing papers in PubMed, 29 citations in OpenAlex.
- Local adaptation sustains genetic differentiation between two varieties of Chinese walnut (Plant diversity · 2026Article
- Analysis genome of Pseudotaxus chienii reveals insights into the origin and evolution of taxane biosynthesis.Nature communications · 2025Article
- A leading-edge scenario in the phylogeography and evolutionary history of East Asian insularFrontiers in genetics · 2024Article
- Peripatric speciation within Torreya fargesii (Taxaceae) in the Hengduan Mountains inferred from multi-loci phylogeography.BMC ecology and evolution · 2023Article
- Epigenetic architecture ofEcology and evolution · 2023Article
- Diversification of East Asian subtropical evergreen broadleaved forests over the last 8 million years.Ecology and evolution · 2022Review
- Hybrid enrichment of adaptive variation revealed by genotype-environment associations in montane sedges.Molecular ecology · 2022Article
- More opportunities more species: Pleistocene differentiation and northward expansion of an evergreen broad-leaved tree species Machilus thunbergii (Lauraceae) in Southeast China.BMC plant biology · 2022Article
- Cytotype distribution and chloroplast phylogeography of the Actinidia chinensis complex.BMC plant biology · 2021Article
- EST-SSR-based landscape genetics ofEcology and evolution · 2021Article
- Population transcriptomic sequencing reveals allopatric divergence and local adaptation in Pseudotaxus chienii (Taxaceae).BMC genomics · 2021Article
- Species Delimitation of Asteropyrum (Ranunculaceae) Based on Morphological, Molecular, and Ecological Variation.Frontiers in plant science · 2021Article
- Determining the when, where and how of conifer speciation: a challenge arising from the study 'Evolutionary history of a relict conifer Pseudotaxus chienii'.Annals of botany · 2020Article
- Characterization and Development of Microsatellite Markers inFrontiers in genetics · 2020Article
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Authors and funding
7 authors at 3 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
BACKGROUND AND
aimsMany monotypic gymnosperm lineages in south-east China paradoxically remain in relict status despite long evolutionary histories and ample opportunities for allopatric speciation, but this paradox has received little attention and has yet to be resolved. Here, we address this issue by investigating the evolutionary history of a relict conifer, Pseudotaxus chienii (Taxaceae).
methodsDNA sequences from two chloroplast regions and 14 nuclear loci were obtained for 134 samples. The demographic history was inferred and the contribution of isolation by environment (IBE) in patterning genetic divergence was compared with that of isolation by distance (IBD). KEY
resultsThree genetic clusters were identified. Approximate Bayesian computation analyses showed that the three clusters diverged in the late Pliocene (~3.68 Ma) and two admixture events were detected. Asymmetric gene flow and similar population divergence times (~ 3.74 Ma) were characterized using the isolation with migration model. Neither IBD nor IBE contributed significantly to genetic divergence, and the contribution of IBE was much smaller than that of IBD.
conclusionsThese results suggest that several monotypic relict gymnosperm lineages like P. chienii in south-east China did not remain in situ and undiversified for millions of years. On the contrary, they have been evolving and the extant populations have become established more recently, having insufficient time to speciate. Our findings provide a new perspective for understanding the formation and evolution of the relict gymnosperm flora of China as well as of the Sino-Japanese Flora.
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