干旱胁迫下马铃薯块茎形成期部分农艺性状的遗传分析  

Genetic Analysis of Partial Agronomic Characters of Potatoes at Tuber Formation Period under Drought Stress

作　　者：张凤军[1,2,3] 叶景秀 阮建平 苏旺 周云 王舰[1,2,3] ZHANG Fengjun;YE Jingxiu;RUAN Jianping;SU Wang;ZHOU Yun;WANG Jian(Academy of Agriculture and Forestry,Qinghai University,Xining 810016,China;Key Laboratory of Potato Breeding of Qinghai Province,Xining 810016,China;Key Laboratory of Qinghai-Tibetan Plateau Biotechnology of Ministry of Education,Xining 810016,China)

机构地区：[1]青海大学农林科学院,西宁810016 [2]青海省马铃薯育种重点实验室,西宁810016 [3]青藏高原生物技术教育部重点实验室,西宁810016

出　　处：《种子》2022年第5期23-29,共7页Seed

基　　金：国家现代农业产业技术体系专项(CARS-09);青海省重大科技专项(2019-NK-A 1);青南地区马铃薯高质量发展关键技术集成与示范(2020-NK-123)。

摘　　要：以旱作敏感型品种大西洋和耐旱型品种陇薯6号为亲本构建的F_(1)分离群体为材料,采用主基因+多基因混合遗传模型分析方法对其单株结薯数、单株块茎重、株高、茎粗等4个性状进行遗传模型分析。结果表明,4个性状的最适遗传模型均为2 MG-AD,受2对主基因+加性-显性多基因控制,4个性状的主基因的遗传率在16.02%~96.11%之间。The F_(1) segregated population was constructed as materials by taking the drought-sensitive variety“Atlantic”and the drought-tolerant variety“longshu 6”as the parent.Major gene plus polygene mixed genetic model was explored to perform genetic analysis of four traits such as the number of tubers per plant,tuber weight per plant,plant height,and stem thickness.The results showed that the most suitable genetic model for the 4 traits was 2 MG-AD,controlled by 2 pairs of major genes plus additive-dominant polygenes,and the major gene heritability of the 4 traits was from 16.02%to 96.11%.

关 键 词：马铃薯 干旱胁迫 主基因+多基因 遗传分析 

分 类 号：S532[农业科学—作物学]