挂榜山小鲵的核型(有尾目:小鲵科)  

Karyotype of Hynobius guabangshanensis(Urodela:Hynobiidae)

作　　者：熊建利[1] 卿立燕[2,3] 曾晓茂[2] 赵尔宓[1,2] 

机构地区：[1]生物资源与生态环境教育部重点实验室,四川大学生命科学学院,成都610064 [2]中国科学院成都生物研究所 [3]四川师范大学生命科学学院

出　　处：《四川动物》2008年第2期236-238,共3页Sichuan Journal of Zoology

基　　金：This work was supported by NSFC 30570250 to Xiaomao Zeng.

摘　　要：本文首次报道了挂榜山小鲵Hynobius guabangshanensis的核型。其2n=56,分为4组,其中9对大型染色体,4对双臂中型染色体,5对双臂小型染色体和10对单臂小型染色体。挂榜山小鲵具有池塘类型小鲵的特征,即2n=56以及缺少中端着丝粒染色体,这与挂榜山小鲵的生态和形态特征也属池塘类型相符。The karyotype of Hynobius guabangshanensis （Urodela： Hynobiidae） from south-central of China was analyzed with the conventional Giemsa method for the first time. Its diploid number is 56 （with 4 groups）, with nine large pairs, four biarmed medium pairs, five biarmed microchromosome pairs, and 10 uniarmed microchromosome pairs. Possession of 2n = 56 chromosomes and absence of a medium telocentric pair resemble pond type Hynobius, which is consistent with the ecological and morphological characteristics of H. guabangshanensis.

关 键 词：挂榜山小鲵 核型 小鲵科 

分 类 号：Q953[生物学—动物学]