Species divergence with gene flow and hybrid speciation on the Qinghai-Tibet Plateau

© 2022 The Authors. New Phytologist © 2022 New Phytologist Foundation.

Bibliographische Detailangaben
Veröffentlicht in:The New phytologist. - 1979. - 234(2022), 2 vom: 12. Apr., Seite 392-404
1. Verfasser: Wu, Shengdan (VerfasserIn)
Weitere Verfasser: Wang, Yi, Wang, Zefu, Shrestha, Nawal, Liu, Jianquan
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2022
Zugriff auf das übergeordnete Werk:The New phytologist
Schlagworte:Journal Article Research Support, Non-U.S. Gov't Review Qinghai-Tibet Plateau geographic isolation homoploid hybrid speciation hybridization natural selection
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520 |a The Qinghai-Tibet Plateau (QTP) sensu lato (sl), comprising the platform, the Himalaya and the Hengduan Mountains, is characterized by a large number of endemic plant species. This evolutionary cradle may have arisen from explosive species diversification because of geographic isolation. However, gene flow has been widely detected during the speciation processes of all groups examined, suggesting that natural selection may have also played an important role during species divergence in this region. In addition, natural hybrids have been recovered in almost all species-rich genera. This suggests that numerous species in this region are still 'on the speciation pathway to complete reproductive isolation (RI)'. Such hybrids could directly develop into new species through hybrid polyploidization and homoploid hybrid speciation (HHS). HHS may take place more easily than previously thought through alternate inheritance of alleles of parents at multiple RI loci. Therefore, isolation, selection and hybridization could together have promoted species diversification of numerous plant genera on the QTP sl. We emphasize the need for identification and functional analysis of alleles of major genes for speciation, and especially encourage investigations of parallel adaptive divergence causing RI across different lineages within similar but specific habitats in this region 
650 4 |a Journal Article 
650 4 |a Research Support, Non-U.S. Gov't 
650 4 |a Review 
650 4 |a Qinghai-Tibet Plateau 
650 4 |a geographic isolation 
650 4 |a homoploid hybrid speciation 
650 4 |a hybridization 
650 4 |a natural selection 
700 1 |a Wang, Yi  |e verfasserin  |4 aut 
700 1 |a Wang, Zefu  |e verfasserin  |4 aut 
700 1 |a Shrestha, Nawal  |e verfasserin  |4 aut 
700 1 |a Liu, Jianquan  |e verfasserin  |4 aut 
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