摘要
采用经典遗传分析方法,对来源于美国辣椒疫病抗性资源‘CM334’的疫病抗性遗传规律进行了研究。试验将‘CM334’与疫病高感自交系‘949’配制杂交组合,并构建杂交组合的6个世代(P1,P2,F1,F2,B1和B2),用苗期伤根灌根接种法对其各世代群体植株进行抗性鉴定,并进行2χ的适合性测验。结果表明:‘CM334’的抗疫病性状遗传符合一对显性基因控制模式。
The inheritance of the variety ＇CM334＇ of hot pepper from America, resistant to Phytophthora capsici, was studied by the traditional genetic analysis method. The six populations （P1, P2, F1, F2, B1 and B2 ） derived from the crosses between highly resistant inbred line ＇CM334＇ （P1） and the highly susceptible inbred line ＇949＇ （P2） were sowed in nutritive cups. The resistance of the plants of each population was evaluated by irriga- ting method, and the segregation ratios between the resistant and susceptible plants in F2 and B2 populations were analyzed by Z2 test. The results showed that a single pair of nuclear and dominant gene controlled the resistance in the inbred line ＇CM334＇.
出处
《植物保护》
CAS
CSCD
北大核心
2011年第5期184-186,共3页
Plant Protection
基金
国家"863"计划子项目(2008AA10Z150-53)
广东省科技计划项目(2009B060600004
2010B020304001)
现代农业产业技术体系建设专项
关键词
辣椒
抗疫病
遗传规律
hot pepper
resistance to Phytophthora capsici
heredity
