›› 1994, Vol. 14 ›› Issue (1): 21-23.

• 论文 • 上一篇    下一篇

巴马小型猪染色体核型

  

  1. 广西农业大学
  • 收稿日期:1993-10-05 出版日期:1994-01-25 发布日期:1994-01-25
  • 基金资助:
    国家自然科学基金

Chromosome Karyotype of Ba-ma Mini-pig

  1. Guangxi Agricultural University, Nanning 530005
  • Received:1993-10-05 Online:1994-01-25 Published:1994-01-25

摘要: 采用外周血淋巴细胞培养技术,对巴马小型猪的染色体作了核型分析。结果表明:巴马小型猪正常的二倍体细胞染色体数2n=38,其性染色体为XY(♂)、XX(♀)。根据染色体形态、相对长度、臂比、着丝点指数,参照第一届国际家畜分带核型标准化会议(1976)制定的猪的染色体核型标准,将18对常染色体分为A、B、c、D四个形态组,核型呈10sm+4st+10m+12t。X染色体为中着丝点染色体,大小介于第8对和第9对染色体之间,Y染色体为最小的中着丝点染色体。

关键词: 小型猪, 染色体核型, 巴马, 着丝点, 染色体数目, 性染色体, 染色体组型, 染色体组成, 银染核仁组成区, 相对长度

Abstract: The examination of karyotype of Ba-ma mini-pig by means of peripheral blood lymphocytes culture showed that the diploid chromosomes number was 38, 18 pairs of autosomes and one pair of sex chromosomes in both boars (XY) and sows (XX). The chromosomes were divided into four groups of A,B,C and D according to the standard of Reading Congress (1976).The karyotype of the autosomes was 10 sm+ 4st+10m+12 t. The X chromosome was a metacentric chromosome whose length was between the 8th and 9th chromosome, while the Y chromosome was a smallest metacentric chromosome.

Key words: Ba-ma mini-pig, Chromosome, Karyotype