罗非鱼选育群体Cytb与D-loop序列变异信息对比分析  

Comparison of Base Sequence Diversity of Cytb and D-loop Gene of Nile tilapia

作　　者：颉晓勇[1] 李思发[2] 

机构地区：[1]中国水产科学研究院南海水产研究所、广东省渔业生态环境重点实验室,广州510300 [2]上海海洋大学,上海201306

出　　处：《基因组学与应用生物学》2014年第5期982-985,共4页Genomics and Applied Biology

基　　金：国家“十五”攻关项目(2001BA505B0513);中央级公益性科研院所基本科研业务费专项资金(中国水产科学研究院南海水产研究所)资助项目(2007TS04)共同资助

摘　　要：对罗非鱼选育群体mtDNA Cytb和D-loop序列遗传变异开展对比研究,根据2种方法得到的多态位点比率平均为0.776 74单倍型多样度比率平均为0.919 45核苷酸多样性指数比率平均为0.769 77平均核苷酸差异数比率均值为0.936 19Cytb序列碱基转换率平均0.042 67Cytb碱基颠换率平均0.004 10D-loop序列碱基转换率平均0.037 25D-loop碱基颠换率平均0.022 84。该结果对比揭示了Cytb和D-loop序列分析中的差异。Base sequence diversity ofmtDNA Cytb and D-loop gene of Nile tllapta were compared, The ration of polymorphic sites from Cytb to D-loop averaged 0.776 74, the average ratio ofhaplotype diversity 0.919 45, the ra- tio of nucleotide diversity averaged 0.769 77, meanwhile it of nucleotide differences number averaged 0.936 19. The average percentage of base conversion of Cytb and D-loop gene of Nile tilapia were 0.042 67 and 0.037 25, whereas the average percentage of base transversion of Cytb and D-loop gene were 0.004 10 and 0.022 84, respec- tively. These results revealed the differences between base sequence diversity of Cytb and D-loop gene.

关 键 词：罗非鱼 CYTB D-LOOP 序列变异 对比分析 

分 类 号：S965.125[农业科学—水产养殖]