海洋科学2016，Vol.40Issue(3)：47-52,6.DOI:10.11759/hykx20150215001
文蛤早期发育阶段生长性状遗传参数的估计
Genetic parameter estimation for growth traits in the early life history of Meretrix meretrix
摘要
Abstract
This study investigates the genetic parameters affecting the growth traits of Meretrix meretrix in the early stages of life-history. Twenty three full-sib families were produced using the part factorial design, and effects were estimated using the single trait and two trait animal models. The results showed that, regarding the shell length heritabilities and shell height heritabilities, there were no significant differences between metamorphosis and juvenile stages. The estimated heritabilities were arranged from 0.11 to 0.41, at a medium level. However, the common environment effects increased as the age of Meretrix meretrix increased (from 0.02 to 0.38), and the common environment effects at the juvenile stage were significantly higher than those observed at the settlement and metamorphosis stages (P<0.01). From the metamorphosis stage to the juve-nile stage, significantly positive phenotypic and genetic correlations were shown between the shell length and shell height, the correlation coefficients were 0.84~0.95 and 0.84~0.99, respectively. While the genetic correlations of the shell length between different development periods were positive, they were not significant and the correlation coefficients were differ-ent between each developmental period (0.34~0.71).关键词
文蛤(Meretrix meretrix)/生长性状/动物模型/遗传参数Key words
Meretrix meretrix/growth traits/animal model/genetic parameter分类
生物科学引用本文复制引用
梁冰冰,王鸿霞..文蛤早期发育阶段生长性状遗传参数的估计[J].海洋科学,2016,40(3):47-52,6.基金项目
国家863计划项目(2012AA10A410) （2012AA10A410）
浙江省科技计划项目(2012C12907-4)[Foundation：the National High Technology Research and Development Program (863 program) of China, No.2012AA10A410 （2012C12907-4）
the Zhejiang sci-ence and technology project of agricultural breeding, No.2012C12907-4] （）
