Early selective breeding and screening of new high temperature resistant lines of razor clam Sinonovacula constricta
ENG Delong, XUE Baobao, SHEN Benlong, NIU Donghong, LI Jiale, SHEN Heding*
Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources, Ministry of Education, National Demonstration Center for Experimental Fisheries Science Education, Shanghai Collaborative Innovation for Aquatic Animal Genetics and Breeding, Shanghai Ocean University
Abstract: Three high-temperature resistant families of razor clam Sinonovacula constricta were screened from 10 whole sibling families of razor clam by growth, survival and high temperature resistance, and median-lethal temperatures(UILT50) were compared in different days old larval stages of the 2, 4, 6, 10(muddy period), and 20 and 30 water temperature of 30, 32, 34, 36, and 38 ℃ to select the resistant high-temperature varieties (lines)of razor clam. The results showed that the family C had significantly better growth compared with the other two families (P<0.05), and that there was significant difference in the UILT50 temperature among the families (P<0.05). The razor clam in family C had significantly higher survival rate than that in other families did. The findings indicate that UILT50 temperature is used as a measure to carry out the breeding of the high temperature-oriented family on the basis of the new variety ‘Shenzhe No.1’, which can achieve high temperature resistance screening in the larval stage of the family.
孟德龙, 薛宝宝, 申奔龙, 牛东红, 李家乐, 沈和定. 缢蛏抗高温新品系的早期选育与筛选[J]. 大连海洋大学学报, 2020, 35(1): 71-74.
ENG Delong, XUE Baobao, SHEN Benlong, NIU Donghong, LI Jiale, SHEN Heding. Early selective breeding and screening of new high temperature resistant lines of razor clam Sinonovacula constricta. Journal of Dalian Ocean University, 2020, 35(1): 71-74.
2020, Vol. 35 
