The family selection and inbreeding effects of white zebra strains in Manila clam Ruditapes philippinarum
LIU Zhen1,YAN Xi-wu1,HUO Zhong-ming1,LIANG Jian1,YANG Peng1,ZHANG Guo-fan2
1.Engineering Research Center of Shellfish Culture and Breeding in Liaoning Province,Fisheries and Life College,Dalian Ocean University,Dalian 116023,China;2.Research and Development Center of Marine Biotechnology,Institute of Oceanology,Chinese Academy of Sciences,Qingdao 266071,China
Abstract: The growth and survival were compared,and inbreeding depression rate were calculated in control group O2and full-sib family A2,B2,C2,D2,and E2of the second generation of Manila clam Ruditapes philippinarum screened from 18 white zebra strains reciprocal cross families by diallel crossing method in 2011.The results showed that there was larger shell length in larval stage(except in 3 day larvae)in the control group O2than that in the other families,without significant inbreeding depression on growth.The maximal survival was observed in family A2,and the inbreeding depression rate was ranged from 4.56%to 36.27%among each families.During the juvenile stage,however,the significantly different growth and inbreeding depression were found among each inbreeding family,except in C2,and with inbreeding depression rate from 0.54%to 20.00%.The maximal survival rate was observed in family A2during the juvenile stage,and there was higher survival rate in family C2than that in the control family,with inbreeding depression of 27.86%in family B2,12.18%in family D2,and 10.92%in family E2.It is concluded that the best grow family is of C2and high-survival family of A2.
刘振, 闫喜武, 霍忠明, 梁健, 杨鹏, 张国范. 蛤仔白斑马品系的家系选择及近交效应研究[J]. 大连海洋大学学报, 2013, 28(4): 355-360.
LIU Zhen, YAN Xi-wu, HUO Zhong-ming, LIANG Jian, YANG Peng, ZHANG Guo-fan. The family selection and inbreeding effects of white zebra strains in Manila clam Ruditapes philippinarum. Journal of Dalian Ocean University, 2013, 28(4): 355-360.
2013, Vol. 28 
