摘要
家蚕血液型脓病是养蚕生产最主要的病害之一,选育家蚕抗血液型脓病新品种对于稳定蚕桑生产具有重要的作用。选择优质高产家蚕品种菁松和皓月作为受体,用家蚕核型多角体病毒(BmNPV)抗性基因载体品系N作供体,采用杂交、回交(受体作回交亲本连续回交4代)和显性基因纯合固定技术将抗性基因导入受体品种;通过系统选择提高、稳定后代的综合经济性状,育成对家蚕血液型脓病具有高度抵抗性的家蚕新品系并组配成优质、高产新品种菁松N×皓月N(华康3号)。新品种对血液型脓病的抵抗能力比原品种菁松×皓月高10 000倍以上,综合经济性状与原品种菁松×皓月相仿。该品种于2018年3月通过四川省蚕品种审定委员会审定,适合在长江、黄河流域及其他区域饲养。
Nucleopolyhedrosis is the most common and serious disease in silkworm rearing. Breeding of new silkworm varieties with high resistance to nucleopolyhedrosis plays an important role in stable sericultural production. With 2 silkworm varieties Jingsong and Haoyue of excellent quality and high yield as the recipients, and silkworm strain N carrying resistance genes against Bombyx mori nucleopolyhedrovirus(BmNPV) as the donor, a new variety with the disease resistance gene was bred using hybridization, back crossing(the recipient variety as recurrent parents performed 4 rounds of back-crossing) and dominant gene homozygous fixation technique. Jingsong N×Haoyue N(named as Huakang 3) with excellent quality, high yield and strong resistance to BmNPV was picked up through subsequent systematic selection to improve and stabilize the comprehensive economic character of backcrossed generation. BmNPV resistance of this new variety was 10 000 times higher than that of the original variety Jingsong×Haoyue, while its comprehensive economic character is similar to that of the original variety. Huakang 3 has been approved by Sichuan Provincial Silkworm Variety Approval Committee in March 2018, and it is suitable for rearing in the areas alongside the Yangtze River and the Yellow River and in other areas.
作者
徐安英
钱荷英
孙平江
刘明珠
林昌麒
李刚
李龙
张月华
赵国栋
Xu Anying;Qian Heying;Sun Pingiang;Liu Mingzhu;Lin Changqi;Li Gang;Li long;Zhang Yuehua;Zhao Guodon(College of Biotechnology,Jiangsu University of Science and Technology,Zhenjiang Jiangsu 212018,China;Sericultural Research Institute,Chinese Academy of Agricultural Sciences,Zhenjiang Jiangsu 212018,China)
出处
《蚕业科学》
CAS
CSCD
北大核心
2019年第2期201-211,共11页
ACTA SERICOLOGICA SINICA
基金
现代农业产业技术体系建设专项(No.CARS-18)
镇江市重点研发计划(现代农业)项目(No.NY2017017,NY2018021)
关键词
家蚕品种
华康3号
家蚕血液型脓病
抗病育种
Silkworm variety
Huakang 3
Nucleopolyhedrosis
Disease resistance breeding
