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Climate heterogeneity shapes phylogeographic pattern of Hippophae gyantsensis (Elaeagnaceae) in the east Himalaya-Hengduan Mountains
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SYSNO ASEP 0575443 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Climate heterogeneity shapes phylogeographic pattern of Hippophae gyantsensis (Elaeagnaceae) in the east Himalaya-Hengduan Mountains Author(s) Xu, T. (CN)
Wang, R. (CN)
La, Q. (CN)
Yonezawa, T. (CN)
Huang, X. (CN)
Sun, K. (CN)
Song, Z. (CN)
Wang, Y. (CN)
Bartish, Igor V. (BU-J) RID, ORCID, SAI
Zhang, W. (CN)
Cheng, S. (CN)Article number e10182 Source Title Ecology and Evolution. - : Wiley - ISSN 2045-7758
Roč. 13, č. 6 (2023)Number of pages 18 s. Language eng - English Country US - United States Keywords climatic heterogeneity ; phylogeography ; quaternary climatic fluctuations OECD category Plant sciences, botany Method of publishing Open access Institutional support BU-J - RVO:67985939 UT WOS 001003494400001 DOI 10.1002/ece3.10182 Annotation The interaction of recent orographic uplift and climate heterogeneity acted as a key role in the East Himalaya-Hengduan Mountains (EHHM) has been reported in many studies. However, how exactly the interaction promotes clade diversification remains poorly understood. In this study, we both used the chloroplast trnT-trnF region and 11 nuclear microsatellite loci to investigate the phylogeographic structure and population dynamics of Hippophae gyantsensis and estimate what role geological barriers or ecological factors play in the spatial genetic structure. The results showed that this species had a strong east–west phylogeographic structure, with several mixed populations identified from microsatellite data in central location. The intraspecies divergence time was estimated to be about 3.59 Ma, corresponding well with the recent uplift of the Tibetan Plateau. Between the two lineages, there was significant climatic differentiation without geographic barriers. High consistency between lineage divergence, climatic heterogeneity, and Qingzang Movement demonstrated that climatic heterogeneity but not geographic isolation drives the divergence of H. gyantsensis, and the recent regional uplift of the QTP, as the Himalayas, creates heterogeneous climates by affecting the flow of the Indian monsoon. The east group of H. gyantsensis experienced population expansion c. 0.12 Ma, closely associated with the last interglacial interval. Subsequently, a genetic admixture event between east and west groups happened at 26.9 ka, a period corresponding to the warm inter-glaciation again. These findings highlight the importance of the Quaternary climatic fluctuations in the recent evolutionary history of H. gyantsensis. Our study will improve the understanding of the history and mechanisms of biodiversity accumulation in the EHHM region. Workplace Institute of Botany Contact Martina Bartošová, martina.bartosova@ibot.cas.cz, ibot@ibot.cas.cz, Tel.: 271 015 242 ; Marie Jakšová, marie.jaksova@ibot.cas.cz, Tel.: 384 721 156-8 Year of Publishing 2024 Electronic address https://doi.org/10.1002/ece3.10182
Number of the records: 1