吉林农业大学学报2025，Vol.47Issue(2)：226-235,10.DOI:10.13327/j.jjlau.2021.1419
大豆株高和主茎节数QTL定位及候选基因挖掘
QTL Mapping of Plant Height and Main Stem Node Number in Soy-bean and Mining of Its Candidate Genes
摘要
Abstract
Plant height and main stem node number are important traits affecting soybean yield.De-veloping related molecular markers and mining their molecular mechanism are of great benefit to breeding."Jinong 45"and"Suinong 76"were used as parents to obtain F2 population.Based on the genetic map constructed by SNP markers and phenotypic data of the population,three mapping meth-ods of CIM,ICIM and GCIM were used for QTL mapping,and QTL confidence interval was anno-tated.Finally,seven QTLs were obtained from plant height(PH)and three QTLs were obtained from node number(NN).Among them,qNN-20-1,qPH-4-1,qPH-6-1,qPH-19-1 and qPH-20-1 are simi-lar to or coincide with the previous research results.qNN-7-1,qNN-7-2,qPH-9-1,qPH-12-1 and qPH-19-2 are the newly discovered loci,and there is an overlapping region between qNN-20-1 and qPH-20-1.According to the gene annotation,32 candidate genes were screened from the loci,which also showed that these loci were involved in cell processes and plant hormone coordination networks,resulting in changes in plant height or main stem node number.These results will provide theoretical basis for plant type improvement,and lay a theoretical foundation for analyzing the genetic mecha-nism of plant height and node number.关键词
大豆/株高/主茎节数/QTL定位/候选基因Key words
soybean/plant height/node number/QTL mapping/candidate gene分类
农业科技引用本文复制引用
陈亮宇,张君,韩笑,李雪莹,姚丹,宋阳,宋百兴,杨松楠..大豆株高和主茎节数QTL定位及候选基因挖掘[J].吉林农业大学学报,2025,47(2):226-235,10.基金项目
吉林省重点研发计划项目(20210202113NC) （20210202113NC）
