A genome-wide association study of lateral root number for Asian cotton(Gossypium arboreum L.)

作     者：HU Daowu HE Shoupu SUN Gaofei JIA Yinhua GENG Xiaoli WANG Liru PAN Zhaoe CHEN Baojun LI Hongge ZUBAIR Iqbal WANG Xiaoyang ZHAO Zibo GE Yuting PANG Baoyin DU Xiongming HU Daowu;HE Shoupu;SUN Gaofei;JIA Yinhua;GENG Xiaoli;WANG Liru;PAN Zhaoe;CHEN Baojun;LI Hongge;ZUBAIR Iqbal;WANG Xiaoyang;ZHAO Zibo;GE Yuting;PANG Baoyin;DU Xiongming

作者机构：Institute of Cotton Research of Chinese Academy of Agricultural Science/State Key Laboratory of Cotton BiologyAnyang 455000HenanChina Anyang Institute of TechnologyAnyang 455000China School of Agricul-ture SciencesZhengzhou UniversityZhengzhou 450000HenanChina. 

出 版 物：《Journal of Cotton Research》 (棉花研究（英文）)

年 卷 期：2022年第5卷第2期

页      面：207-216页

学科分类：09[农学] 0901[农学-作物学] 

基　　金：supported by Central Public-interest Scientific Institution Basal Research Fund Chinese Academy of Agricultural Science(No.1610162021012)funded by DU Xiongming 

主　　题：GWAS Lateral root Asian cotton SNPs Candidate genes 

摘      要：Background:The lateral root is one of the most important organs that constitute the root architecture system in *** can directly affect the contact area between plants and soil and plays an important role in plant structural support and nutrient *** root architecture systems can greatly increase crop *** study was designed to identify the molecular markers and candidate genes associated with lateral root development in cotton and to evaluate correlations with yield and disease ***:The number of lateral roots for 14-day old seedlings was recorded for 215 Gossypium arboreum accessions.A correlation analysis showed that the number of lateral roots positively correlates with the sympodial branch node and seed index traits,but negatively correlates with lint percentage.A Genome-wide association study(GWAS)identified 18 significant SNPs with 19 candidate genes associated with the lateral root *** analysis identified three genes(FLA 12,WRKY29,and RBOHA)associated with lateral root ***:GWAS an alysis identified key SNPs and candidate gen esfor lateral root number,a nd gen es of FLA 12,WRKY29,and RBOHA may play a pivotal role in lateral root development in Asian cotton.