Genomic analyses provide insights into peach local adaptation and responses to climate change
Ver/Abrir
Autor/a
Li, Yong
Cao, Ke
Li, Nan
Zhu, Gengrui
Fang, Weichao
Chen, Changwen
Wang, Xinwei
Guo, Jian
Wang, Qi
Ding, Tiyu
Wang, Jiao
Guan, Liping
Wang, Junxiu
Liu, Kuozhan
Guo, Wenwu
Huang, Sanwen
Fei, Zhangjun
Wang, Lirong
Fecha de publicación
2021-03-09ISSN
1088-9051
Resumen
The environment has constantly shaped plant genomes, but the genetic bases underlying how plants adapt to environmental influences remain largely unknown. We constructed a high-density genomic variation map of 263 geographically representative peach landraces and wild relatives. A combination of whole-genome selection scans and genome-wide environmental association studies (GWEAS) was performed to reveal the genomic bases of peach adaptation to diverse climates. A total of 2092 selective sweeps that underlie local adaptation to both mild and extreme climates were identified, including 339 sweeps conferring genomic pattern of adaptation to high altitudes. Using genome-wide environmental association studies (GWEAS), a total of 2755 genomic loci strongly associated with 51 specific environmental variables were detected. The molecular mechanism underlying adaptive evolution of high drought, strong UVB, cold hardiness, sugar content, flesh color, and bloom date were revealed. Finally, based on 30 yr of observation, a candidate gene associated with bloom date advance, representing peach responses to global warming, was identified. Collectively, our study provides insights into molecular bases of how environments have shaped peach genomes by natural selection and adds candidate genes for future studies on evolutionary genetics, adaptation to climate changes, and breeding.
Tipo de documento
Artículo
Versión del documento
Versión publicada
Lengua
English
Materias (CDU)
633 - Cultivos y producciones
Páginas
16
Publicado por
Cold Spring Harbor Laboratory Press
Publicado en
Genome Research
Citación
Li, Yong, Ke Cao, Nan Li, Gengrui Zhu, Weichao Fang, Changwen Chen, and Xinwei Wang et al. 2021. "Genomic Analyses Provide Insights Into Peach Local Adaptation And Responses To Climate Change". Genome Research 31 (4): 592-606. doi:10.1101/gr.261032.120.
Program
Genòmica i Biotecnologia
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Copyright © 2021 Li et al.; Published by Cold Spring Harbor Laboratory Press
Excepto si se señala otra cosa, la licencia del ítem se describe como http://creativecommons.org/licenses/by/4.0/