遗传 ›› 2001, Vol. 23 ›› Issue (5): 442-627.

• 论文 • 上一篇    下一篇

赤链蛇染色体组型、C带和Ag-NORs的研究

郭超文 GUO Chao-wen   

  1. 安徽师范大学生命科学学院,芜湖 241000 Life Science Collage,Anhui Normal University,Wuhu 241000,China
  • 收稿日期:1900-01-01 出版日期:2001-10-10 发布日期:2001-10-10

Studies on the Karyotype,C-banding Pattern and Ag-NORs of Dinodon rufozonatum

  • Received:1900-01-01 Online:2001-10-10 Published:2001-10-10

摘要: 以骨髓细胞为材料研究赤链蛇的染色体,结果表明该物种2n=46,由8对大型的和15对微小的染色体组成,AF=50.性染色体的大小介于3号和4号之间,为ZW型;8对大型染色体均显示着丝粒C带,1-6号还显示浅染端粒C带.W染色体为整条C带阳性;该物种一对NOR位于7号染色体近着丝粒区.不同地理分布群赤链蛇核型可能经历过Z与W染色体不等交换。
Abstract:The Karyotype,C-bands and Ag-NORs of Dinodon rufozonaturn (Cantor) reported is in this paper including the diploid number(2n=46)comprising 8 pairs of macro-and 15 pairs of microchromosomes,and AF=50 in the D.rufozonatum.The sex chromosome in size locates between the autochromosones No.3 and No.4,which belongs to ZW type.The C-banding technique revealed that the all macrochromosomes there are centromerc C band,the telomeric C band was only observed in Nos.1~6,while a whole W chromosome is constitutive heterochromatinization.Two NOR were observed on the pericentric of the No.7 chromosome.

关键词: 染色体组型, C带, Ag-NORs, Dinodon rufozonatum, 赤链蛇
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