连城白鸭外周血淋巴细胞染色体核型研究

Study on Karyotype of Liancheng White Duck Peripheral Blood Lymphocyte

本试验通过对连城白鸭外周血淋巴细胞培养、秋水仙素处理后制备染色体标本,并进行染色体核型分析。结果表明,连城白鸭体细胞数目为2n=78±,1号常染色体为亚中央着丝粒染色体;2号常染色体为中央着丝粒染色体;3～9号常染色体及W性染色体为端着丝粒染色体;Z性染色体为亚端着丝粒染色体。本文通过对外周血淋巴细胞染色体核型分析,为进一步研究连城白鸭品种选育奠定基础。

Chromosome specimen were prepared by culturing peripheral blood lymphocyte of Li-ancheng white duck and dealing it with colchicine, and then Karyotype analysis was carried on. The result of karyotype analysis showed that the diploid chromosome number of Liancheng white duck was 2n=78 ± , and chromosome 1 was submetacentric chromosome, chromosome 2 was metacentric chromosome, chromosome Z was a subtelocentric chromosome, chromosome 3～9 and chromosome W were telocentric chromosome. Therefore, through the karyotype analysis of The peripheral blood lympho-cyte chromosome, this experiment lays a foundation for the further study of Liancheng white duck breeding.