干旱区生态环境知识资源中心(Arid): Population genetic diversity and environmental adaptation of Tamarix hispida in the Tarim Basin, arid Northwestern China

Arid

DOI	10.1038/s41437-024-00714-0
	Population genetic diversity and environmental adaptation of Tamarix hispida in the Tarim Basin, arid Northwestern China
	Tian, Haowen; Zhang, Hongxiang; Shi, Xiaojun; Ma, Wenhui; Zhang, Jian
通讯作者	Zhang, HX
来源期刊	HEREDITY
ISSN	0018-067X
EISSN	1365-2540
出版年	2024
英文摘要	Arid ecosystems, characterized by severe water scarcity, play a crucial role in preserving Earth's biodiversity and resources. The Tarim Basin in Northwestern China, a typical arid region isolated by the Tianshan Mountains and expansive deserts, provides a special study area for investigating how plant response and adaptation to such environments. Tamarix hispida, a species well adapted to saline-alkaline and drought conditions, dominates in the saline-alkali lands of the Tarim Basin. This study aims to examine the genetic diversity and environmental adaptation of T. hispida in the Tarim Basin. Genomic SNPs for a total of 160 individuals from 17 populations were generated using dd-RAD sequencing approach. Population genetic structure and genetic diversity were analyzed by methods including ADMIXTURE, PCA, and phylogenetic tree. Environmental association analysis (EAA) was performed using LFMM and RDA analyses. The results revealed two major genetic lineages with geographical substitution patterns from west to east, indicating significant gene flow and hybridization. Environmental factors such as Precipitation Seasonality (bio15) and Topsoil Sand Fraction (T_SAND) significantly shaped allele frequencies, supporting the species' genetic adaptability. Several genes associated with environmental adaptation were identified and annotated, highlighting physiological and metabolic processes crucial for survival in arid conditions. The study highlights the role of geographical isolation and environmental factors in shaping genetic structure and adaptive evolution. The identified adaptive genes related to stress tolerance emphasize the species' resilience and highlight the importance of specific physiological and metabolic pathways.
类型	Article ; Early Access
语种	英语
收录类别	SCI-E
WOS记录号	WOS:001290983900001
WOS关键词	SALT ; ARIDIFICATION ; TOLERANCE ; LANDSCAPE ; XINJIANG ; TREE
WOS类目	Ecology ; Evolutionary Biology ; Genetics & Heredity
WOS研究方向	Environmental Sciences & Ecology ; Evolutionary Biology ; Genetics & Heredity
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/404045
推荐引用方式 GB/T 7714	Tian, Haowen,Zhang, Hongxiang,Shi, Xiaojun,et al. Population genetic diversity and environmental adaptation of Tamarix hispida in the Tarim Basin, arid Northwestern China[J],2024.
APA	Tian, Haowen,Zhang, Hongxiang,Shi, Xiaojun,Ma, Wenhui,&Zhang, Jian.(2024).Population genetic diversity and environmental adaptation of Tamarix hispida in the Tarim Basin, arid Northwestern China.HEREDITY.
MLA	Tian, Haowen,et al."Population genetic diversity and environmental adaptation of Tamarix hispida in the Tarim Basin, arid Northwestern China".HEREDITY (2024).