Parentage assignment and parental contribution analysis in large yellow croaker Larimichth

Parentage assignment and parental contribution analysis in large yellow croaker Larimichthys crocea

using microsatellite markers

Xiande LIU;Guangtai ZHAO;Zhiyong WANG;Mingyi CAI;Hua YE;Qiurong WANG

【期刊名称】《动物学报（英文版）》 【年(卷),期】2012(058)002

【摘要】The large yellow croaker Larimichthys crocea is one of the most important fish species in China.To estimate the reproductive success of breeders,three independent full-factorial crosses were created and the fins of breeders and progenies were sampled for microsatellite analysis.Out of 959 offspring from three sets,99.6％ were assigned to their parents using 6-7 microsatellite markers.In all crosses,some parent pairs produced a large number of offspring and some parent pairs did not produce any offspring.The contributions of male or female parents were unequal,ranging from 1.0-89.3％ across the three sets.The loss of putative Ne was 69.6％ in set 1,31.2％ in set 2 and 57.6％ in set 3.These results suggest that the unequal contribution of parents is universal in artificial breeding ofL.crocea,especially in a small population,and this should be taken into account in hatcheries or when releasing animals for resource enhancement [Current Zoology 58 (2):244-249,2012]. 【总页数】6页(244-249) 【关键词】