气候变化领域集成服务门户(CCPortal): Populus cathayana genome and population resequencing provide insights into its evolution and adaptation

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DOI	10.1093/hr/uhad255
	Populus cathayana genome and population resequencing provide insights into its evolution and adaptation
	Xiang, Xiaodong; Zhou, Xinglu; Zi, Hailing; Wei, Hantian; Cao, Demei; Zhang, Yahong; Zhang, Lei; Hu, Jianjun
发表日期	2024
ISSN	2662-6810
EISSN	2052-7276
起始页码	11
结束页码	1
卷号	11 期号:1
英文摘要	Populus cathayana Rehder, an indigenous poplar species of ecological and economic importance, is widely distributed in a high-elevation range from southwest to northeast China. Further development of this species as a sustainable poplar resource has been hindered by a lack of genome information the at the population level. Here, we produced a chromosome-level genome assembly of P. cathayana, covering 406.55 Mb (scaffold N50 = 20.86 Mb) and consisting of 19 chromosomes, with 35 977 protein-coding genes. Subsequently, we made a genomic variation atlas of 438 wild individuals covering 36 representative geographic areas of P. cathayana, which were divided into four geographic groups. It was inferred that the Northwest China regions served as the genetic diversity centers and a population bottleneck happened during the history of P. cathayana. By genotype-environment association analysis, 947 environment-association loci were significantly associated with temperature, solar radiation, precipitation, and altitude variables. We identified local adaptation genes involved in DNA repair and UV radiation response, among which UVR8, HY5, and CUL4 had key roles in high-altitude adaptation of P. cathayana. Predictions of adaptive potential under future climate conditions showed that P. cathayana populations in areas with drastic climate change were anticipated to have greater maladaptation risk. These results provide comprehensive insights for understanding wild poplar evolution and optimizing adaptive potential in molecular breeding.
语种	英语
WOS研究方向	Plant Sciences ; Genetics & Heredity ; Agriculture
WOS类目	Plant Sciences ; Genetics & Heredity ; Horticulture
WOS记录号	WOS:001148474800002
来源期刊	HORTICULTURE RESEARCH
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/297088
作者单位	Chinese Academy of Forestry; Research Institute of Forestry, CAF; State Key Laboratory of Tree Genetics & Breeding, CAF; Nanjing Forestry University
推荐引用方式 GB/T 7714	Xiang, Xiaodong,Zhou, Xinglu,Zi, Hailing,et al. Populus cathayana genome and population resequencing provide insights into its evolution and adaptation[J],2024,11(1).
APA	Xiang, Xiaodong.,Zhou, Xinglu.,Zi, Hailing.,Wei, Hantian.,Cao, Demei.,...&Hu, Jianjun.(2024).Populus cathayana genome and population resequencing provide insights into its evolution and adaptation.HORTICULTURE RESEARCH,11(1).
MLA	Xiang, Xiaodong,et al."Populus cathayana genome and population resequencing provide insights into its evolution and adaptation".HORTICULTURE RESEARCH 11.1(2024).