摘要
本文报导的西域沙虎（Ｔｅｒａｔｏｓｃｉｎｃｕｓｐｒｚｅｗａｌｓｋｉｉ）核型为２ｎ＝３６，由一对（１）亚端部着丝点染色体、１２对（２－１３）端部着丝点染色体及５对（１４－１８）不能明显确定着丝点位置的染色体组成。染色体均无明显的界线，不能象一般爬行类那样划分出大染色体和小染色体，这与壁虎科其它种类相一致，只是中间着丝点及亚中间着丝点染色体缺乏，故尔染色体臂数较少，另外染色体数目也较一般壁虎科种类少，表明沙虎与壁虎间既有联系、又具有一定的差异性。
In this paper,the karyotypes of Teratoscincus przewalskii(Reptilia:Sauria:Gekkonidae)from Dunhuang,Gansu,were studied by colchicine-hypotonic-air drying technique. Thediploid chromosome number is 2n=36 and is composed of 18 pairs of homogeneous chromosomes.Their size decreased successively and could not be divided distinctly into macro-and micro-chromosomes as of the karyotypes found in Gekkonidae,All the chomosomes are telocentric ex-cept the first pair which is subtelocentric. Hetermorphic sex chromosome were not observed inthis work.
出处
《甘肃科学学报》
1994年第2期41-45,共5页
Journal of Gansu Sciences
基金
甘肃省教委资助
关键词
爬行纲
壁虎科
西域沙虎
核型
Reptilia
Gekkonidae
Teratoscincus Przewalskii
karyotype
evolution
