文献类型：期刊文献

英文题名：Spatial Pattern of Genetic Diversity and Demographic History Revealed by Population Genomic Analysis: Resilience to Climate Fluctuations of Acer truncatum Bunge

作者：Liao, Jia[1] Yu, Xuedan[1] Wu, Yuxia[1] Pei, Shunxiang[2] Xin, Xuebing[2] Xia, Xinhe[1] Mao, Shan[1] Pan, Xinyue[1] Zheng, Yongqi[1] Zhang, Chuanhong[1]

第一作者：Liao, Jia

通信作者：Zhang, CH[1]

机构：[1]Chinese Acad Forestry, Res Inst Forestry, State Key Lab Tree Genet & Breeding, Beijing 100091, Peoples R China;[2]Chinese Acad Forestry, Expt Ctr Forestry North China, Beijing Jiulong Mt Natl Long Term Sci Res Base War, Beijing 102300, Peoples R China

年份：2024

卷号：15

期号：4

外文期刊名：FORESTS

收录：;WOS:【SCI-EXPANDED(收录号:WOS:001220210700001)】；

基金：The authors are grateful to associated researcher Wenhua Yang, who is from Research Institute of Forestry, Chinese Academy of Forestry, for her language polishing.

语种：英文

外文关键词：Acer truncatum; SNPs; genetic diversity; spatial pattern; demographic history

摘要：Whole genome sequencing techniques are capable of providing insights into plant genetic adaptation to climate oscillations. Acer truncatum Bunge is a new resource tree for food with ornamental, timber and medicinal value. However, it has been listed as a near-threatened species because of the decreasing number of natural populations. In order to develop conservation strategies and sustainable innovative utilization for genetic resources, spatial pattern of genetic diversity and demographic history of A. truncatum from 13 natural populations, which cover the entire range, were analyzed by 9,086,353 single nucleotide polymorphisms (SNPs) through whole genome resequencing. The genetic diversity of natural populations was high (H-e = 0.289, I = 0.449), and genetic variations mainly resided within populations (82.47%) by AMOVA analysis. Cluster analysis showed that 13 natural populations mainly originated from three common gene pools. Therefore, it is recommended that the natural populations (LBGM, BTM, WLS and DQT) with high genetic diversity in different groups were given priority for in situ conservation and the genetic resources from these populations were collected for ex situ conservation. The effective population size of A. truncatum experienced two large-scale sharp contractions and currently decreased to its bottom in history. Nonetheless, A. truncatum could have expanded its effective population size to its historical peak after the last glacial period, indicating that it is highly resilient to fluctuations of temperature and humidity.