原尾蜥虎的核型和Ag-NORs研究  

KARYOTYPE AND Ag-NORs OF HEMIDACTYLUS BOWINGII

作　　者：庞启平[1] 叶英[1] 莫肖敏[2] 

机构地区：[1]广西医科大学生物教研室,南宁530021 [2]广西医科大学电镜室

出　　处：《四川动物》2002年第4期242-244,共3页Sichuan Journal of Zoology

摘　　要：对原尾蜥虎进行了核型和核仁组织者（NORs）研究,表明原尾蜥虎的2n=46,全部由23对各级大小的端着丝粒染色体组成,染色体由大至小排列,其长度依次递减,没有大染色体和小染色体的明显界限。未发现异形性染色体对。原尾蜥虎有一对Ag-NORs位于NO.2的端着丝粒染色体的近端区。The diploid number of Hemidacthlus bawingii is 46 and the karyotype consists of 23 pairs telocentric chromosomes of various sizes, ranging from large to small sequentially. They show a gradual diminution in length, therefore, it is impossible to sort them into such distinct groups as large or small or micro-chromosomes. No heteromor-phic sex chromosomes is observed in the karyotype. A pair of Ag-NORs on the proximal region of No. 2 telocentric chro-mosme is found.

关 键 词：原尾蜥虎 核型 AG-NORS研究 核仁组织者 

分 类 号：Q953[生物学—动物学]