文献类型：期刊文献

中文题名：蓖麻株高性状主基因+多基因遗传分析

英文题名：Genetic analysis of plant height related traits in Ricinus communis L. with major gene plus polygenes mixed model

作者：崔月[1];陆建农[2];施玉珍[3];殷学贵[2];张启好[2]

机构：[1]岭南师范学院,广东湛江524048;[2]广东海洋大学农学院,广东湛江524088;[3]广东海洋大学化学与环境学院,广东湛江524088

年份：2019

卷号：45

期号：7

起止页码：1111

中文期刊名：作物学报

外文期刊名：Acta Agronomica Sinica

收录：CSTPCD、、北大核心2017、Scopus、CSCD2019_2020、北大核心、CSCD

基金：国家自然科学基金项目(31271759);广东省科技计划项目(2013B060400024,2014A020208116,2016A020208015);广东海洋大学创新强校工程项目(GDOU2013050206)资助~~

语种：中文

中文关键词：蓖麻;株高相关性状;主基因+多基因;遗传分析

外文关键词：Ricinus communis L.;plant height related traits;major gene plus polygene model;genetic analysis

中文摘要：本研究选用蓖麻 YC2×YF1 高、矮秆组合的 2 组 6 世代群体(P1、P2、F1、B1、B2 和 F2),对株高性状进行了主基因+多基因混合遗传模型分析。结果表明,蓖麻株高受 1 对主基因和多基因共同控制。2 组群体在 B1、B2 和 F2 三个分离世代中主基因遗传率分别为 37.05%/49.57%、30.51%/34.48%和 43.98%/43.64%;主穗位高和主茎节数均受 2 对主基因和多基因共同控制,且主基因的互作效应>显性效应>加性效应。3 个分离世代中, 2 组群体主穗位高主基因遗传率分别为 67.91%/92.72%、 86.89%/92.13%和 60.18%/66.87%,主茎节数主基因遗传率分别为 91.83%/91.50%、 35.22%/63.37%和 85.76%/94.58%。主茎节长由多基因控制,遗传率分别为 47.64%/47.64%、38.87%/38.87%和 25.25%/52.71%。以上遗传模式决定了蓖麻杂种后代株高、主穗位高和主茎节长的正向超亲遗传,而主茎节数则倾向于低值亲本。因此,主穗位高和主茎节数可以作为株高的早期间接选择指标。

外文摘要：In this study, plant height related traits in Ricinus communis L. were analyzed using the mixed major gene plus polygenes genetic model with two groups of six-generation populations (P1, P2, F1, B1, B2, and F2) derived from the cross YC2×YF1. The results revealed that the plant height was controlled by a pair of major gene and polygenes. The major-gene heritability in B1, B2, and F2 populations was 37.05%/49.57%(group I/group II), 30.51%/34.48%, and 43.98%/43.64%, respectively. The bearing height of primary raceme and the node number of main stems were all controlled by two pairs of major genes and polygenes, with the importance of major-gene genetic components in the order of epistasis >dominance >additive. In the three generations the heritability of major genes conferring the bearing height of primary raceme was 67.91%/92.72%, 86.89%/92.13%, and 60.18%/66.87%, respectively, and that of major genes conferring the node number of main stem were 91.83%/91.50%, 35.22%/63.37%, and 85.76%/94.58%, respectively. As for the length of main stem inter- node, it was fully controlled by polygenes, the heritability was 47.64%/47.64%, 38.87%/38.87%, and 25.25%/52.71%, re- spectively. The above genetic models explained the positive transgressive inheritance of plant height, the bearing height of primary raceme and the length of main stem internode as well as the similar performance to the low value parent of the node number of main stem in F1 generation. It suggested that the bearing height of primary raceme and the node number of main stem should be used as indirect selection indexes for plant height at early stage and the node number of main stem of lower value parent should not be too little in high yield breeding.