湘西盲高原鳅种质特征的研究  

Study on Germplasm Characters of Triplophysa xiangxiensis

作　　者：贺刚[1] 何力[2] 许映芳[2] 张征[2] 李晓莉[2] 

机构地区：[1]华中农业大学水产学院,武汉430070 [2]中国水产科学院长江水产研究所,湖北荆州434000

出　　处：《淡水渔业》2008年第2期64-67,共4页Freshwater Fisheries

基　　金：中国水产科学研究院淡水生态与健康养殖重点开放实验开放课题

摘　　要：观察了湘西盲高原鳅（Triplophysa xiangxiensis）的形态特征，分析了其染色体核型和同工酶组织特异性。结果显示：湘西盲高原鳅形态学可数性状为背鳍Ⅲ-8，臀鳍Ⅲ-6，胸鳍Ⅰ-11，腹鳍Ⅰ-15～16，尾鳍Ⅰ-16，脊椎骨35；其染色体核型为2n=48，12m＋16sm＋12st＋8t，臂数NF=76。乳酸脱氢酶（LDH）、酯酶（EST）和醇脱氢酶（ADH）3种同工酶谱存湘西盲高原鳅中有明显的组织特异性。Morphological character, karyotype and tissues specificity of isozyme of Triplophysa xiangxiensis were studied. In countable characters, there are Ⅲ -8 dorsal fin-rays, Ⅲ -6 proctal fin-rays, Ⅰ - 11 pectoral fin-rays, Ⅰ - 15 - 16 ventral fin-rays, Ⅰ - 16 caudal fin-rays, 35 vertebras. The study on karyotype showed that the chromosome number is 2 n =48, chromosome formula is 12 m ＋ 16 sm ＋ 12 st ＋8 t, NF is 76. The study on isozymes also showed that the specificity of tissues was observed in LDH, EST and ADH.

关 键 词：湘西盲高原鳅(Triplophysa xiangxiensis) 形态特征 染色体 同工酶 

分 类 号：S966.2[农业科学—水产养殖]