福建大头蛙的核型及带型分析  

Karyotype, C-band and Ag-NORs of Limnonectes fujianensis

作　　者：彭巧玲[1] 王洋[1] 许竟成[1] 唐鑫生[1] 张际峰[1] 季代丽[1] 胡丽丽[1] 聂刘旺[1] 

机构地区：[1]安徽师范大学生命科学学院,芜湖241000

出　　处：《动物学杂志》2005年第3期77-80,共4页Chinese Journal of Zoology

基　　金：安徽省教育厅自然科学基金重点项目 (No.2 0 0 2kj12 8) ;安徽省自然科学基金 (No.0 10 4 32 0 2 )

摘　　要：利用骨髓细胞蒸气固定法制备染色体标本,研究了福建大头蛙(Limnonectesfujianensis)黄山居群的核型、C 带和Ag NORs。结果表明,福建大头蛙核型为2n =2 2 =2 0M +2SM ,NF =44,次缢痕位于No 1 0q ;各染色体均有着丝粒C 带,3p、9q出现插入型C 带;Ag NORs位于1 0q。The chromosome samples were prepared from metaphase marrow cells from Limnonectes fujianensis which distributes in Yellow Mountain by stream-fixation method. Then the karyotype, C-band and Ag-NORs of L. fujianensis were studied. The chromosome number of L. fujianensis is 2n=22(20M+2SM). All the chromosomes are metacentric or submetacentric(NF=44), and the secondary-construction(SC) chromosome is No.10. Each chromosome has a centromeric C-band, and there are inserted C-bands in both the short arm of No.3 chromosome and the long arm of No.9 chromosome. Ag-NORs are localized in the long arms of the No.10 pair.

关 键 词：福建大头蛙 大头蛙 核型 C-带 AG-NORS 

分 类 号：Q953[生物学—动物学]