干旱区生态环境知识资源中心(Arid): Combining phenotype, genotype, and environment to uncover genetic components underlying water use efficiency in Persian walnut

Arid

DOI	10.1093/jxb/erz467
	Combining phenotype, genotype, and environment to uncover genetic components underlying water use efficiency in Persian walnut
	Arab, Mohammad M.1; Marrano, Annarita 2; Abdollahi-Arpanahi, Rostam 3; Leslie, Charles A.2; Cheng, Hao 4; Neale, David B.2; Vahdati, Kourosh 1
通讯作者	Vahdati, Kourosh
来源期刊	JOURNAL OF EXPERIMENTAL BOTANY
ISSN	0022-0957
EISSN	1460-2431
出版年	2020
卷号	71 期号:3 页码:1107-1127
英文摘要	Walnut production is challenged by climate change and abiotic stresses. Elucidating the genomic basis of adaptation to climate is essential to breeding drought-tolerant cultivars for enhanced productivity in arid and semi-arid regions. Here, we aimed to identify loci potentially involved in water use efficiency (WUE) and adaptation to drought in Persian walnut using a diverse panel of 95 walnut families (950 seedlings) from Iran, which show contrasting levels of water availability in their native habitats. We analyzed associations between phenotypic, genotypic, and environmental variables from data sets of 609 000 high-quality single nucleotide polymorphisms (SNPs), three categories of phenotypic traits [WUE-related traits under drought, their drought stress index, and principal components (PCs)], and 21 climate variables and their combination (first three PCs). Our genotype-phenotype analysis identified 22 significant and 266 suggestive associations, some of which were for multiple traits, suggesting their correlation and a possible common genetic control. Also, genotype-environment association analysis found 115 significant and 265 suggestive SNP loci that displayed potential signals of local adaptation. Several sets of stress-responsive genes were found in the genomic regions significantly associated with the aforementioned traits. Most of the candidate genes identified are involved in abscisic acid signaling, stomatal regulation, transduction of environmental signals, antioxidant defense system, osmotic adjustment, and leaf growth and development. Upon validation, the marker-trait associations identified for drought tolerance-related traits would allow the selection and development of new walnut rootstocks or scion cultivars with superior WUE.
英文关键词	Abiotic stress climate change drought tolerance genotyping array genotype-environment analysis genome-wide association study (GWAS) SNP markers
类型	Article
语种	英语
国家	Iran ; USA
开放获取类型	hybrid
收录类别	SCI-E
WOS记录号	WOS:000515119200030
WOS关键词	JUGLANS-REGIA L. ; CARBON-ISOTOPE DISCRIMINATION ; DEPENDENT PROTEIN-KINASES ; ABIOTIC STRESS TOLERANCE ; GENOME-WIDE ASSOCIATION ; DROUGHT TOLERANCE ; ABSCISIC-ACID ; LINKAGE DISEQUILIBRIUM ; GAS-EXCHANGE ; ARABIDOPSIS
WOS类目	Plant Sciences
WOS研究方向	Plant Sciences
来源机构	University of California, Davis
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/314949
作者单位	1.Univ Tehran, Coll Aburaihan, Dept Hort, Tehran, Iran; 2.Univ Calif Davis, Dept Plant Sci, Davis, CA 95616 USA; 3.Univ Tehran, Coll Aburaihan, Dept Anim & Poultry Sci, Tehran, Iran; 4.Univ Calif Davis, Dept Anim Sci, Davis, CA 95616 USA
推荐引用方式 GB/T 7714	Arab, Mohammad M.,Marrano, Annarita,Abdollahi-Arpanahi, Rostam,et al. Combining phenotype, genotype, and environment to uncover genetic components underlying water use efficiency in Persian walnut[J]. University of California, Davis,2020,71(3):1107-1127.
APA	Arab, Mohammad M..,Marrano, Annarita.,Abdollahi-Arpanahi, Rostam.,Leslie, Charles A..,Cheng, Hao.,...&Vahdati, Kourosh.(2020).Combining phenotype, genotype, and environment to uncover genetic components underlying water use efficiency in Persian walnut.JOURNAL OF EXPERIMENTAL BOTANY,71(3),1107-1127.
MLA	Arab, Mohammad M.,et al."Combining phenotype, genotype, and environment to uncover genetic components underlying water use efficiency in Persian walnut".JOURNAL OF EXPERIMENTAL BOTANY 71.3(2020):1107-1127.