Heterosis and combining ability:a diallel cross of three geographically isolated populations of Pacific abalone Haliotis discus hannai Ino

IOCAS-IR

	Heterosis and combining ability:a diallel cross of three geographically isolated populations of Pacific abalone Haliotis discus hannai Ino
	Deng YW(邓岳文); Liu X(刘晓); Zhang GF(张国范); Wu FC(吴富村)
发表期刊	Chinese Journal of Oceanology and Limnology
ISSN	0254-4059
	2010-11-15
出版年	2010
卷号	v.28 期号:06 页码:71-75
文献类型	CNKI期刊论文
摘要	We conducted a complete diallel cross among three geographically isolated populations of Pacific abalone Haliotis discus hannai Ino to determine the heterosis and the combining ability of growth traits at the spat stage.The three populations were collected from Qingdao(Q) and Dalian(D) in China,and Miyagi(M) in Japan.We measured the shell length,shell width,and total weight.The magnitude of the general combining ability(GCA) variance was more pronounced than the specific combining ability(SCA) variance,which is evidenced by both the ratio of the genetic component in total variation and the GCA/SCA values.The component variances of GCA and SCA were significant for all three traits(P<0.05),indicating the importance of additive and non-additive genetic effects in determining the expression of these traits.The reciprocal maternal effects(RE) were also significant for these traits(P<0.05).Our results suggest that population D was the best general combiner in breeding programs to improve growth traits.The DM cross had the highest heterosis values for all three traits.
关键词	Haliotis discus hannai Ino heterosis combining ability
CNKI专辑号	A;D;
CNKI专辑名称	基础科学;农业科技;
CNKI专题号	D052;
CNKI专题名称	水产和渔业;
分类号	S917.4
收录类别	中科院核心
语种	英文;
资助项目(基金）	Supported by the National High Technology Research and Development Program of China (863 Program) (No2006AA10A407) ; the National Natural Science Foundation of China (No30371117)
文献类型	CNKI期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/191891
专题	中国科学院海洋研究所
作者单位	1.InstituteofOceanology,ChineseAcademyofSciences 2.FisheriesCollege,GuangdongOceanUniversity
推荐引用方式 GB/T 7714	Deng YW,Liu X,Zhang GF,et al. Heterosis and combining ability:a diallel cross of three geographically isolated populations of Pacific abalone Haliotis discus hannai Ino. 2010.