文献类型：期刊文献

中文题名：芋疫病抗病性鉴定及不同品系遗传多样性分析

英文题名：Resistance Identification of Taro to Phytophthora colocasiae and Genetic Diversity Analysis of Colocasia esculenta

作者：莫俊杰[1,2];胡汉桥[2];梁钾贤[2];陈静思[2];许良珠[2];吴仁锋[3]

机构：[1]华南农业大学农学院,广东广州510642;[2]广东海洋大学农学院生物技术系,广东湛江524088;[3]武汉蔬菜科学研究所,湖北武汉430065

年份：2012

卷号：32

期号：4

起止页码：67

中文期刊名：广东海洋大学学报

外文期刊名：Journal of Guangdong Ocean University

收录：CSTPCD

基金：<水生蔬菜主要病虫害无害化综合防控技术研究>公益性行业(农业)科研专项经费子课题分项目(200903017-08)

语种：中文

中文关键词：芋头;疫病;遗传多样性;抗病性鉴定

外文关键词：Colocasia esculent; Phytophthora colocasiae; genetic diversity; resistance identification

中文摘要：为有效地保存抗病种质资源,对主栽的芋头品系进行疫病的抗病性鉴定及遗传多样性分析。从我国南方4个芋头产区收集60多个芋头品系,采用改进的疫霉菌抗病性鉴定方法,经过2 a的抗性鉴定,从中鉴定出6个抗病品系,9个中抗品系。选取全部的抗病品系及分别代表不同地区的感病品系37个,用SSR进行遗传多样性分析。聚类分析结果表明,芋头品系可分为5个类群。15个抗病品系分属不同类群,野生芋和食叶芋属于第5类群,与其它类群的亲缘关系较远。

外文摘要：Resistance identification of taro to Phytophthora colocasiae and analysis of genetic diversity of taro were conducted in order to preserve resistant taro effectively.More than 60 taro accessions were collected from the southern region,a method was developed to identify the resistance of the taro accessions,6 resistance accessions and 9 moderate resistance accessions were identified after 2 year trials.The genetic diversity of 37 accessions including all the resistance accessions and other susceptible accessions from different districts was analyzed by SSR.The selected taro accessions could be clustered into 5 groups.The 15 resistant taro accessions belonged to different groups.The resistance wild taro and leafy taro belonged to the fifth group which was distantly related with other groups.