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Study on heritability of growth in the juvenile sea urchin, strongylocentrotus nudus.

From: Journal of Shellfish Research  |  Date: 4/1/2004  |  Author: Jianhai, Xiang; Jun, Ding; Xiaolin, Liu; Xuebin, Cao; Yaqing, Chang

ABSTRACT The heritability of growth of juvenile Strongylocentrotus nudus was analyzed using quantitative genetic methods. Twenty-one half-sib groups and 60-63 full-sib groups of juveniles were obtained by artificial fertilization of 3-5 females by single males based on a nested design. The body weight (g) and test diameter (cm) of the young were measured 3 and 5 mo after metamorphosis. Maternal component estimates are significantly greater than paternal component estimates for both ...

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