Genetic parameters for cold tolerance and body weight of Chinese fleshy prawn, Fenneropenaeus chinensis
文献类型: 外文期刊
第一作者: Li Wenjia
作者: Li Wenjia;Luan Sheng;Luo Kun;Sui Juan;Lu Xia;Wang Qingyin;Kong Jie;Li Wenjia;Luan Sheng;Luo Kun;Sui Juan;Lu Xia;Wang Qingyin;Kong Jie
作者机构:
关键词: Fenneropenaeus chinensis;heritability;body weight;cold tolerance;genetic correlation
期刊名称:ACTA OCEANOLOGICA SINICA ( 影响因子:1.431; 五年影响因子:1.445 )
ISSN: 0253-505X
年卷期: 2016 年 35 卷 6 期
页码:
收录情况: SCI
摘要: The inability of Fenneropenaeus chinensis to tolerate low temperatures is of major economic concern in temperate climates, as it reduces their growing season and leads to over-winter mortality. In this study, the heritability of body weight under low grow-out temperature and cold tolerance in F. chinensis were first investigated and estimated using 88 ful-sib families, which might provide crucial information in Chinese fleshy prawn breeding programs. The heritability for body weight under suitable and low temperature of F. chinensis were both moderate (0.158 0 +/- 0.307 5 and 0.132 0 +/- 0.026 9 respectively); the large coefficient of variation (approximately 21%) and moderate estimate of heritability for body weight indicated substantial potential for selective breeding. The heritability estimate for cold tolerance was low (0.019 2 +/- 0.023 5), and showed no significant differences from zero (P > 0.05). A weak genetic correlation between cold tolerance and body weight was also estimated in the present study, also showing no significant differences from zero (P > 0.05). Thus, more research needs to be conducted on the more accurate heritability estimate of cold tolerance and genetic correlations between traits in F. chinensis to further improve the achievement of breeding goals.
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