大豆根部水压胁迫耐逆指数遗传体系解析

王吴彬, 童飞, KHAN Mueen Alam, 张雅轩, 贺建波, 郝晓帅, 邢光南, 赵团结, 盖钧镒

Detecting QTL system of root hydraulic stress tolerance index at seedling stage in soybean

WANG Wu-Bin, TONG Fei, KHAN Mueen-Alam, ZHANG Ya-Xuan, HE Jian-Bo, HAO Xiao-Shuai, XING Guang-Nan, ZHAO Tuan-Jie, GAI Jun-Yi

图2 MTZ群体根部水压胁迫耐逆指数的遗传解析 A: MTZ群体中根部水压胁迫耐逆指数全基因组关联分析曼哈顿图。B: MTZ群体中根部水压胁迫耐逆指数全基因组关联分析QQ图。C: 123个RHSTI QTL等位变异效应; 横坐标上方的条柱代表增效等位变异效应, 横坐标下方的条柱代表减效等位变异效应。D: MTZ群体RHSTI QTL-allele矩阵, 横轴为家系, 按根部水压胁迫耐逆指数由左向右递增排列, 竖轴为QTL, 暖色表示增效等位基因, 冷色表示减效等位基因, 颜色深度表示等位基因效应的大小。E: 3个亲本和最优后代的表型及其遗传结构; 括号内外的数字分别代表材料携带减效与增效等位变异数目; P1、P2、P3和EP分别代表3个亲本蒙8206、正阳白毛平顶、通山薄皮黄豆甲与聚合所有最优等位变异的后代。F: RHSTI候选基因GO功能聚类分析。

Fig. 2 Genetic analysis of RHSTI in the MTZ population A: Manhattan plot of GWAS for RHSTI in MTZ population. B: Quantile-quantile plot of GWAS for RHSTI in MTZ population. C: the effects of 123 alleles on 45 RHSTI loci; the bars above the horizontal axis represent positive values while the bars below the horizontal axis represent negative values. D: the QTL-allele matrix of RHSTI in the MTZ population; the horizontal axis represents the lines of MTZ in ascending order according to RHSTI from the left side to the right side; the vertical axis is the QTL of RHSTI for each line and each horizontal indicates one allele with its effects expressed as the color thickness; the cells with warm colors indicate positive alleles; while the cells with cool colors indicate negative alleles the depth of the color indicates the size of the allele effect; E: the genetic structure and phenotype value of the three parents along with the elite progeny; the numbers in and outside of the parentheses represent the total numbers of negative and positive alleles, respectively; P1, P2, P3, and EP represent M8206, Zhengyangbaimaopingding, Tongshanbopihuangdoujia, and elite progeny pyramiding all the most favorable alleles, respectively. F: GO functional classification of the candidate genes of RHSTI.