虹鳟（Oncorhynchusmykiss）传染性造血器官坏死病（IHN）抗病力遗传参数估计及其抗病家系筛选

以虹鳟（Oncorhynchusmykiss）43L良品系G2世代为基础群体，在避免全同胞或半同胞交配基础上随机交配，建立60个全同胞家系，对上述家系进行传染性造血器官坏死病毒（Infectioushaematopoieticnecrosisvirus，IHNV）人工感染试验，构建贝叶斯动物阈模型估计IHN抗病力遗传参数，采用吉布斯抽样（Gibbssampling）方法估计虹鳟IHN抗病力方差组分并计算遗传力，结果表明，虹鳟IHN抗病力遗传力为0．34。在此基础上进行抗病家系筛选研究，获得8个感染IHNV病毒90日存活率超过50％家系，其中-个家系（编号K23）存活率超过90％。本研究结果显示...

Full description

Saved in:
Bibliographic Details
Published in东北农业大学学报 Vol. 44; no. 9; pp. 120 - 126
Main Author 王炳谦 姜再胜 户国 石存斌 王芳 谷伟 白庆利
Format Journal Article
LanguageChinese
Published 2013
Subjects
IHN抗病力
动物阈模型
吉布斯抽样
家系选育
虹鳟
遗传参数
Online AccessGet full text

Cover

More Information
Summary:以虹鳟（Oncorhynchusmykiss）43L良品系G2世代为基础群体，在避免全同胞或半同胞交配基础上随机交配，建立60个全同胞家系，对上述家系进行传染性造血器官坏死病毒（Infectioushaematopoieticnecrosisvirus，IHNV）人工感染试验，构建贝叶斯动物阈模型估计IHN抗病力遗传参数，采用吉布斯抽样（Gibbssampling）方法估计虹鳟IHN抗病力方差组分并计算遗传力，结果表明，虹鳟IHN抗病力遗传力为0．34。在此基础上进行抗病家系筛选研究，获得8个感染IHNV病毒90日存活率超过50％家系，其中-个家系（编号K23）存活率超过90％。本研究结果显示，虹鳟IHN抗病力具有中等遗传力，采用选择育种手段对虹鳟IHN抗病性能进行遗传改良在技术上是可行。
Bibliography:23-1391/S
WANG Bingqian, JIANG Zaisheng, HU Guo, SHI Cunbin, WANG Fang, GU Wei, BAI Qingli（1. School of Fisheries and Life Science, Shanghai Ocean University, Shanghai 201306, China; 2. Heilongjiang River Fishery Research Institute, Chinese Academy of Fishery Sciences, Harbin 150070, China; 3. Pearl River Fishery Research Institute, Chinese Academy of Fishery Sciences, Guangzhou 510380, China）
Oncerhynchus Mykiss; resistance to infectious haematopoietic necrosis; geneticparameter; animal threshold model; Gibbs sampling; family selective breeding
The generation two （G2） of a rainbow trout superior strain population were used as the base population. This strain was being selectively bred by the Heilongjiang River Fishery Research Institute （HRFRI） of the Chinese Academy of Fishery Sciences （CAFS）. 60 full sib families were developed in rainbowtrout by random mating and avoiding inbreeding among full or half sibs. All pedigreed fry were infected by IHNV and cultured in the same condition. Gibbs sampling algorithm f
ISSN:1005-9369