干旱区生态环境知识资源中心(Arid): Analysis of the genetic diversity and population structure of Salix psammophila based on phenotypic traits and simple sequence repeat markers

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DOI	10.7717/peerj.6419
	Analysis of the genetic diversity and population structure of Salix psammophila based on phenotypic traits and simple sequence repeat markers
	Hao, Lei 1,2; Zhang, Guosheng 1; Lu, Dongye 1; Hu, Jianjun 3; Jia, Huixia 3
通讯作者	Zhang, Guosheng
来源期刊	PEERJ
ISSN	2167-8359
出版年	2019
卷号	7
英文摘要	Salix psammophila (desert willow) is a shrub endemic to the Kubuqi Desert and the Mu Us Desert, China, that plays an important role in maintaining local ecosystems and can be used as a biomass feedstock for biofuels and bioenergy. However, the lack of information on phenotypic traits and molecular markers for this species limits the study of genetic diversity and population structure. In this study, nine phenotypic traits were analyzed to assess the morphological diversity and variation. The mean coefficient of variation of 17 populations ranged from 18.35% (branch angle (BA)) to 38.52% (leaf area (LA)). Unweighted pair-group method with arithmetic mean analysis of nine phenotypic traits of S. psammophila showed the same results, with the 17 populations clustering into five groups. We selected 491 genets of the 17 populations to analyze genetic diversity and population structure based on simple sequence repeat (SSR) markers. Analysis of molecular variance (AMOVA) revealed that most of the genetic variance (95%) was within populations, whereas only a small portion (5%) was among populations. Moreover, using the animal model with SSR-based relatedness estimated of S. psammophila, we found relatively moderate heritability values for phenotypic traits, suggesting that most of trait variation were caused by environmental or developmental variation. Principal coordinate and phylogenetic analyses based on SSR data revealed that populations P1, P2, P9, P16, and P17 were separated from the others. The results showed that the marginal populations located in the northeastern and southwestern had lower genetic diversity, which may be related to the direction of wind. These results provide a theoretical basis for germplasm management and genetic improvement of desert willow.
英文关键词	Genetic diversity SSR Structure genetics Phenotypic traits Salix psammophila
类型	Article
语种	英语
国家	Peoples R China
开放获取类型	Green Published, gold, Green Submitted
收录类别	SCI-E
WOS记录号	WOS:000458904200003
WOS关键词	LIFE-HISTORY TRAITS ; LINKAGE MAP ; WILLOW ; WIND ; DNA ; IDENTIFICATION ; PERFORMANCE ; PARAMETERS ; PROGRAM ; RATIOS
WOS类目	Multidisciplinary Sciences
WOS研究方向	Science & Technology - Other Topics
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/217898
作者单位	1.Inner Mongolia Agr Univ, Coll Forestry, Hohhot, Peoples R China; 2.Inner Mongolia Univ Finance & Econ, Hohhot, Peoples R China; 3.Chinese Acad Forestry, Res Inst Forestry, State Key Lab Tree Genet & Breeding, Key Lab Tree Breeding & Cultivat,State Forestry A, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Hao, Lei,Zhang, Guosheng,Lu, Dongye,et al. Analysis of the genetic diversity and population structure of Salix psammophila based on phenotypic traits and simple sequence repeat markers[J],2019,7.
APA	Hao, Lei,Zhang, Guosheng,Lu, Dongye,Hu, Jianjun,&Jia, Huixia.(2019).Analysis of the genetic diversity and population structure of Salix psammophila based on phenotypic traits and simple sequence repeat markers.PEERJ,7.
MLA	Hao, Lei,et al."Analysis of the genetic diversity and population structure of Salix psammophila based on phenotypic traits and simple sequence repeat markers".PEERJ 7(2019).