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Genome-Wide Analysis of WRKY Genes and Their Response to Hormone and Mechanic Stresses in Carrot
Nan, Hong1,2; Gao, Li-Zhi1,3
通讯作者Gao, Li-Zhi(Lgaogenomics@163.com)
2019-05-01
发表期刊FRONTIERS IN GENETICS
ISSN1664-8021
卷号10页码:19
摘要The WRKY gene family plays a vital role in plant development and environment response. Although previous studies suggested that the WRKY genes in carrot (Kuroda type) involved in biotic and abiotic stress responses, the information of WRKY genes in the latest version of the carrot genome (Daucus carota v2.0, Nantes type carrot) and their response to hormone and injury stresses have not been reported. In this study, we performed a genome-wide analysis of WRKYs using a chromosome-scale genome assembly of carrot (Daucus carota subsp. sativus L.). We identified a total of 67 WRKY genes, which were further classified into the three groups. These WRKY genes are unevenly distributed on carrot chromosomes. We found that more than half of them were derived from whole-genome duplication (WGD) events, suggesting that WGDs have played a major role during the evolution of the WRKY gene family. We experimentally ascertained the expression divergence existed between WGD-derived WRKY duplicated gene pairs, which is indicative of functional differentiation between duplicated genes. Our analysis of cis-acting elements indicated that WRKY genes were transcriptionally regulated upon hormone and mechanic injury stresses. Gene expression analyses by qRT-PCR further presented that WRKY genes were involved in hormone and mechanic injury stresses.
关键词WRKY transcription factor carrot whole genome duplication expression divergence hormone and mechanic stresses
DOI10.3389/fgene.2019.00363
收录类别SCI
语种英语
WOS记录号WOS:000466540600001
引用统计
文献类型期刊论文
条目标识符http://ir.kib.ac.cn/handle/151853/66786
专题中国西南野生生物种质资源库
通讯作者Gao, Li-Zhi
作者单位1.Chinese Acad Sci, Plant Germplasm & Genom Ctr, Kunming Inst Bot, Germplasm Bank Wild Species Southwest China, Kunming, Yunnan, Peoples R China
2.Univ Chinese Acad Sci, Beijing, Peoples R China
3.South China Agr Univ, Inst Genom & Bioinformat, Guangzhou, Guangdong, Peoples R China
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Nan, Hong,Gao, Li-Zhi. Genome-Wide Analysis of WRKY Genes and Their Response to Hormone and Mechanic Stresses in Carrot[J]. FRONTIERS IN GENETICS,2019,10:19.
APA Nan, Hong,&Gao, Li-Zhi.(2019).Genome-Wide Analysis of WRKY Genes and Their Response to Hormone and Mechanic Stresses in Carrot.FRONTIERS IN GENETICS,10,19.
MLA Nan, Hong,et al."Genome-Wide Analysis of WRKY Genes and Their Response to Hormone and Mechanic Stresses in Carrot".FRONTIERS IN GENETICS 10(2019):19.
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