广西地区家蚕品种资源对BmNPV抵抗性的初步调查  

A Preliminary Investigation on the Resistance of the Silkworm Variety Resources in Guangxi to BmNPV

作　　者：陆瑞好 石美宁 闭立辉 顾家栋 黄君霆[2] 

机构地区：[1]广西壮族自治区蚕业技术推广总站,南宁530007 [2]中国农业科学院蚕业研究所,镇江212018

出　　处：《蚕业科学》2007年第1期117-120,共4页ACTA SERICOLOGICA SINICA

基　　金：2003年国家茧丝绸发展风险基金发展性项目;2005年广西科技项目(编号桂科产0537706)

摘　　要：以广西地区现有的84个家蚕品种品系为材料,于2龄起蚕经口接种BmNPV,调查不同品种品系对BmN-PV经口感染的抵抗性。结果表明:不同蚕品种间对BmNPV经口感染的抵抗性存在显著差异,供试品种中7532(B)的发病率最低,为21.46%;Z6、中黄4、9497等品种的发病率高达100%;发病率55%以下的品种中绝大多数为日系品种;同一品种不同品系间的抵抗性也有一定的差异。研究结果可为进一步选育抗性品种提供依据。By peroral inoculation of BmNPV polyhedron suspension to the newly molted second-instar larve the resistance of 84 silkworm varieties preserved in Guangxi region to BmNPV was investigated. The results indicated that there were significant differences among silkworm varieties in their resistance to BmNPV by peroral inoculation, the morbidity of 7532（B） was the lowest with an average rate of 21.46%, and the average morbidity of Z6,Zhonghuang 4, 9497 ect. reached 100% ; The mass with on average morbidity less than 55% were Japanese variety; There was a definited difference in the resistance to BmNPV peroral infection among difference silkworm strains of the same variety. This result provide the basis for breeding of silkworm strains with high resistance to BmNPV.

关 键 词：家蚕品种 家蚕核型多角体病毒 抵抗性 

分 类 号：S882[农业科学—特种经济动物饲养]