Standing genetic variation as the predominant source for adaptation of a songbird

Yu Ting Lai, Carol K.L. Yeung, Kevin E. Omland, Er Li Pang, Yu Hao, Ben Yang Liao, Hui Fen Cao, Bo Wen Zhang, Chia Fen Yeh, Chih Ming Hung, Hsin Yi Hung, Ming Yu Yang, Wei Liang, Yu Cheng Hsu, Cheng Te Yao, Lu Dong, Kui Lin, Shou Hsien Li*

*此作品的通信作者

研究成果: 雜誌貢獻期刊論文同行評審

100 引文 斯高帕斯(Scopus)

摘要

What kind of genetic variation contributes the most to adaptation is a fundamental question in evolutionary biology. By resequencing genomes of 80 individuals, we inferred the origin of genomic variants associated with a complex adaptive syndrome involving multiple quantitative traits, namely, adaptation between high and low altitudes, in the vinous-throated parrotbill (Sinosuthora webbiana) in Taiwan. By comparing these variants with those in the Asian mainland population, we revealed standing variation in 24 noncoding genomic regions to be the predominant genetic source of adaptation. Parrotbills at both high and low altitudes exhibited signatures of recent selection, suggesting that not only the front but also the trailing edges of postglacial expanding populations could be subjected to environmental stresses. This study verifies and quantifies the importance of standing variation in adaptation in a cohort of genes, illustrating that the evolutionary potential of a population depends significantly on its preexisting genetic diversity. These findings provide important context for understanding adaptation and conservation of species in the Anthropocene.

原文英語
頁(從 - 到)2152-2157
頁數6
期刊Proceedings of the National Academy of Sciences of the United States of America
116
發行號6
DOIs
出版狀態已發佈 - 2019 2月 5

ASJC Scopus subject areas

  • 多學科

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