文档介绍：中国烟草科学
2010,31(1):1-4
香料烟青枯病抗性基因的遗传分析
1
高加明 1,2,王志德 1*,张兴伟 1,刘艳华 1,牟建民 1,任
民 1,徐
军 1,2
(1. 农业部烟草类作物质量控制重点实验室,中国农业科学院烟草研究所,青岛 266101;2. 中国农业科学院研究生院,
北京 100081)
摘
要:本研究以香料烟青枯病抗病品种 Xanthi、感病品种 Samsun、F1以及 F2群体为研究材料,采用青枯病圃进行抗性
鉴定,利用主基因+多基因混合遗传模型对各群体单株的病情指数进行分析,结果表明:香料烟青枯病抗性基因是受 2对加
性-显性-上位主基因+加性-显性多基因(E-1模型)控制遗传;主基因的遗传率为 %。
关键词:香料烟;青枯病;主基因+多基因混合遗传模型;数量性状
中图分类号:
文章编号:1007-5119(2010)01-0001-04
DOI: .1007-
ic Analysis on Resistance to Bacterial Wilt in Oriental o
GAO Jiaming1,2, WANG Zhide1*, ZHANG Xingwei1, LIU Yanhua1, MU Jianmin1, REN Min1, XU Jun1,2
(1. Key Laboratory of o Quality Control, Ministry of Agriculture, o Research Institute of CAAS, Qingdao 266101,
China; 2. Graduate School of CAAS, Beijing 100081, China)
Abstract: In this paper, bacterial wilt resistant variety Xanthi and susceptible variety Samsun, their F1s and F2s were used to study
inheritance of resistance of oriental o to bacterial wilt. These populations and their individuals were planted in identifying field
of Fujian Province. The identified data of individuals was analyzed using major gene plus poly-gene mixed inheritance model.
Results indicated that the resistance to bacterial wilt in oriental o was controlled by two independent major genes with
additive-dominance-epistatic effects plus polygenes with additive-dominance eff