异源四倍体鲫鲤的形态特征研究  

Study on the Morphplogical Characteristics of the Allotetraploid of Red Crucian Carp(■)×Common Carp()

作　　者：李建中[1] 张轩杰[1] 刘少军[1] 周工健[1] 刘筠[1] 

机构地区：[1]湖南师范大学生物系,中国长沙410081

出　　处：《湖南师范大学自然科学学报》2001年第2期64-66,共3页Journal of Natural Science of Hunan Normal University

基　　金：湖南省科技重点攻关项目(98Jky1008)

摘　　要：按常规标准测定了异源四倍体鲫鲤的形态特征，并与二倍体的红鲫和湘江野鲤进行了比较主要结果如下：异源四倍体鲫鲤的背鳍条Ⅲ，１６～１９；臀鳍条Ⅲ，５～７；测线鳞３０～３４，侧线上鳞为５～８，侧线下鳞为５～８；鳃耙数 ３２～３５；下咽齿 ２行，１．４～４．１；脊椎骨 ３１～３３；口须 ２对；体长为体高的 ２．２３～３． ３３倍，为头长的 ２．７３～４．６０倍；头长为吻长的２．６７～４．０１倍，为眼径的３．３３～５．１３倍；尾柄长为尾柄高的０．８３～１．３２倍研究表明，异源四倍体鲫鲤形态性状稳定，已形成了一个新的四倍体鱼种群．The morphological characteristics of the allotetraploid fish were studied by ordinary regulations and were compared with take of Red crucian Carp (Carassius auratus red var.) and Common Carp (Cyprinus carpio L.). The results were as follows: D. 3. 16-19; A.3,5-7; scalles in lateral line 30-34,scalles above lateral line 5-7,scalles below lateral line 5-8; gill raker 32-. 35; Pharyngeal tooth 2, 1.4-4. 1; vertebrae, 31-33; body length/body height＝ 2.33-3.33, body length/head length＝2.73 -4.60; head length / Lip length＝2.67-4. 01, head length /eye diameter＝3.33-5.13; caudal peduncel length/caudal peduncel height＝ 0.83-1.32. The results indicated that the morphological characteristics of the allotetraploid fish were steady.

关 键 词：异源四倍体 二倍体 形态特征 鲫 锂 

分 类 号：Q959.468[生物学—动物学]