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	Divergent selection for shell length in two stocks of small abalone Haliotis diversicolor
	You, Wei-Wei ; You WW(游伟伟) ; Ke, Cai-Huan ; Ke CH(柯才焕) ; Luo, Xuan ; Wang, De-Xiang ; Wang DX(王德祥)
	2010
关键词	Haliotis diversicolor realized heritability response to selection divergent selection shell length
英文摘要	To determine whether genetic improvement can be attained through a selective breeding programme, divergent selection for shell length was applied to two stocks of Haliotis diversicolor. Stock A was descended from the cross between males from a Japanese wild population and females from a Taiwan aquacultured population and Stock B was from the Taiwan cultured population, which had been successively cultured in mainland China for about 10 generations. The 10% largest and 10% smallest abalones for each of these two stocks were selected as parents for the large-selected and small-selected lines respectively. Equal numbers of abalone were randomly chosen from the two stocks to serve as parents for the control lines before the selection. The selected and control lines were reared under the same conditions at early juvenile, later juvenile and grow-out stages. Stock A showed a significantly higher response to selection and realized heritability than Stock B (P < 0.01). The large-selected line of Stock A and Stock B grew 12.79% and 4.58% faster than their control lines on shell length respectively. The average realized heritability for shell length was 0.441 +/- 0.064 for Stock A and 0.113 +/- 0.013 for Stock B. Responses to selection were different at different ages in each stock and the body weights of the selected lines were significantly different from the control lines in both stocks at the grow-out stage. Asymmetric responses to selection in the two directions were also observed in both stocks. Differences in response to selection and realized heritability between the two stocks are presumably due to genetic variability.; Hi-Tech Research and Development (863) Program of China [2006AA10A407]
语种	英语
出版者	WILEY-BLACKWELL PUBLISHING, INC
内容类型	期刊论文
源URL	[http://dx.doi.org/doi:10.1111/j.1365-2109.2009.02376.x]
专题	海洋环境－已发表论文
推荐引用方式 GB/T 7714	You, Wei-Wei,You WW,Ke, Cai-Huan,et al. Divergent selection for shell length in two stocks of small abalone Haliotis diversicolor[J],2010.
APA	You, Wei-Wei.,游伟伟.,Ke, Cai-Huan.,柯才焕.,Luo, Xuan.,...&王德祥.(2010).Divergent selection for shell length in two stocks of small abalone Haliotis diversicolor..
MLA	You, Wei-Wei,et al."Divergent selection for shell length in two stocks of small abalone Haliotis diversicolor".(2010).

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