中国水产科学2011，Vol.18Issue(6)：1286-1292,7.DOI:10.3724/SP.J.1118.2011.01286
大菱鲆子二代家系白化与正常幼鱼生长及形态学差异
Growth and morphology of albino and normal F2 juveniles from different families of turbot Scophthalmus maximus
摘要
Abstract
Albinism has a significant effect on the market value of cultured turbot Scophthalmus maximus. We investigated the causes of albinism in cultured turbot by constructing 32 full-sib turbot families using standardized larval-rearing in 2009. We measured weight and documented the morphology of 16 full-sib families (including 6 pairs of half-sib families) with higher rates of albinism 85 days post hatching (dph). We compared the morphology of albino juveniles and normal juveniles in every F2 family. In addition, we selected a fast growing family and three high-body type families as candidates for a selective breeding program. The skin pigmentation pattern could be classified into 3 types: albino, partial albino, and normal, in which the partial albino was classified as being within the range of albinism. The albino rate of every F2 family was between 17.2 and 86.7%. There was a significant difference in the rate of albinism among half-sib families, which was likely caused by maternal inheritance and ovular quality. We also found a significant difference in total length, body length, total height, body height, and total weight (P<0.05) between albino and normal juveniles in families C, Hand R. In addition, total height and body weight were significantly different among the 16 full sib families (P<0.05). There was no significant difference in any of the measures between albino and normal juveniles within the same family, with the exception of families H and R. In summary, there were no significant differences in growth rates and body shape between albino and normal juveniles. Our results suggest that although genetics play a role in albinism, it is not the determining factor.关键词
大菱鲆/子二代家系/白化/生长/形态学Key words
Scophthalmus maximus/ family/ albino/ growth/ morphology分类
生物科学引用本文复制引用
关健,郑永允,刘洪军,官曙光,张全启,雷霁霖..大菱鲆子二代家系白化与正常幼鱼生长及形态学差异[J].中国水产科学,2011,18(6):1286-1292,7.基金项目
国家鲆鲽类产业技术体系建设项目(nycytx-50) （nycytx-50）
山东省农业良种工程项目“优质抗病速生鱼类良种选育-工厂化适养品种的选育”资助. （）
