作物学报2013，Vol.39Issue(4)：642-648,7.DOI:10.3724/SP.J.1006.2013.00642
小麦品种太空6号对Heterodera avenae郑州群体的抗性遗传分析
Genetic Analysis of Common Wheat Cultivar Taikong 6 for Resistance to Heterodera avenae Zhengzhou Population
摘要
Abstract
Taikong 6 is a common wheat (Triticum aestivum L.) cultivar with high-yield and good agronomic performance bred by Henan Academy of Agricultural Sciences with satellite-loaded mutation breeding.This cultivar was shown to be resistant to H.avenaee Zhengzhou population in the conditions of repeated inoculation and field tests.In this study,Taikong 6 was crossed with the susceptible cultivars Yumai 47 to produce an F2 segregating population.Reactions of the F2 progeny to H.avenaee Zhengzhou population was investigated in the field and inoculation tests.The results of genetic analysis showed that the cyst number of F2 population was the quantitative character with a continuous and skewed distribution,indicating that there are major genes in Taikong 6.The method of joint segregation analysis of single generation of major gene plus polygene mixed inheritance model was used to analyze the inheritance of resistance to H.avenaee Zhengzhou population in Taikong 6,showing that the genetic model B-2 was the most fitted genetic model for the resistance for the cross of Yumai 47 × Taikong 6 in the conditions of inoculation and field tests.This indicates that the resistance to cereal cyst nematode in Taikong 6 is controlled by two major genes with additive-dominant effects plus polygene effect.The major gene heritability of resistance for the cross of Yumai 47 × Taikong 6 to H.avenaee Zhengzhou population in the conditions of inoculation and field tests was 73.54％ and 86.90％,indicating the two major genes with the dominant role to resistance of Taikong 6 to H.avenaee Zhengzhou population.关键词
太空6号/小麦禾谷孢囊线虫/Heterodera avenae郑州群体/抗病性/遗传分析Key words
Taikong 6/ Cereal cyst nematode/ Heterodera avenae Zhengzhou population/ Resistance/ Genetic analysis引用本文复制引用
代君丽,崔磊,刘珂,宗莹莹,袁虹霞,邢小萍,李洪杰,李洪连..小麦品种太空6号对Heterodera avenae郑州群体的抗性遗传分析[J].作物学报,2013,39(4):642-648,7.基金项目
本研究由国家自然科学基金项目(30971899),国家公益性行业(农业)科研专项基金(200903040)和国家高技术研究发展计划(863计划)项目(2012AA101105)资助. （30971899）
