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当前位置: 首页 > 文章 > 玉米粗缩病抗性遗传研究 植物病理学报 2012,42 (4) 404-410
Position: Home > Articles > Genetic analysis of resistance to Rice black-streaked dwarf virus in maize Acta Phytopathologica Sinica 2012,42 (4) 404-410

玉米粗缩病抗性遗传研究

作  者：
邸垫平;易晓云;苗洪芹;路银贵;田兰芝
单  位：
河北省农林科学院植物保护研究所河北省农业有害生物综合防治工程技术研究中心;保定学院
关键词：
玉米;玉米粗缩病;水稻黑条矮缩病毒;抗性遗传
摘  要：
本文选用3个抗病自交系(齐319、X178、沈137)和3个感病自交系(掖107、掖478、沈5003)按照NCII交配设计配制9套杂交组合研究了玉米抗粗缩病遗传规律。2009-2010年在曲阳、保定采用田间自然发病方法鉴定亲本、F1、F2群体的玉米粗缩病抗性,并采用灰飞虱人工接种方法鉴定亲本材料的抗病性。运用QGA station软件的加性-显性-上位性(ADAA)遗传模型进行数据分析,结果表明,显性效应和加性效应是控制玉米粗缩病抗性的主要遗传组分,分别占表型变异的44.8%和13.1%,杂合显性效应表现负向杂种优势,抗病育种可加以利用。加性×加性上位性效应在玉米自交系和杂交组合抗粗缩病遗传中普遍存在,但因材料不同而表现负向或正向效应。玉米粗缩病抗性易受环境影响,显性与环境互作效应方差占表型方差的比率为39.8%,达到极显著水平。因此,培育抗粗缩病玉米品种应依据基因型选配适当的亲本材料,抗病品种宜进行多年多点鉴定筛选。
译  名：
Genetic analysis of resistance to Rice black-streaked dwarf virus in maize
作  者：
DI Dian-ping1,YI Xiao-yun2,MIAO Hong-qin1,LU Yin-gui1,TIAN Lan-zhi1(1Institute of Plant Protection,IPM Center,Hebei Academy of Agricultural and Forestry,Baoding 071000,China;2Baoding University,Baoding 071000,China)
关键词：
maize;maize rough dwarf disease;Rice black-streaked dwarf virus;resistance genetics
摘  要：
Maize rough dwarf disease caused by Rice black-streaked dwarf virus(RBSDV) leads to serious economic losses of corn in China.It is an efficient and economical measure to use resistant varieties to control the disease.An experiment was carried out to elucidate the heredity in maize resistance to RBSDV with 9 sets of hybrids crossing between 3 resistant(Qi319,X178,Shen137)and 3 susceptible(Ye107,Ye478,Shen5003) lines according to NCII design.The resistance of parents as well as their hybrids F1 and F2 populations were identified by natural transmission of planthopper(Laodelphax striatellus) in fields of Quyang and Baoding from 2009 to 2010 and the parents were also evaluated with artificial inoculation.The disease indexes were analyzed with software QGA station based on additive dominance and additive ×additive(ADAA)genetic model.The results showed that the dominant and additive effects were the main genetic components controlling the performance of maize resistance to RBSDV which could explain 44.8% and 13.1% of phenotype variation.The heterozygous dominant effects revealed negative heterosis which could be utilized in the disease resistance breeding.Furthermore,the additive by additive epistatic effects were present generally in the resistance heredity of inbred lines and cross combinations,but they were negative or positive effects varied in the different materials.The resistance to RBSDV in maize was vulnerable to environmental impacts and the variance of interaction effect between dominance and environment accounted for 39.8% of the total phenotypic variance while the variance ratio was significant at the level of 0.01.Therefore the proper parent materials should be selected based on genotype for resistant breeding to RBSDV and the resistance should be also identified in different sites for several years to screen cross combinations.

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