家鸡染色体核型分析

Research of poultry chromosome karyotype

采用腹腔注射秋水仙素，取骨髓细胞制备染色体标本的方法，获得了大量分散良好的染色体分裂相，做了染色体核型分析。认为1号染色体属中部着丝点染色体，平均臂指数为1．595；2号染色体平均臂指数为1．917，属亚中部着丝点染色体。前者与程光潮等的划分不同，后者与Owne、Shoffner的划分不同。

injecting proper amount colchicine into poultry abdominal cavity, then took its marrow cell and made thechromosome specimens. With the method, obtaining many dispersed metaphase chromosomes, we researched its karyotype anddiscovered the No. 1 chromosome should be a middle centromere chromosome (or m. chromosome) the average arm index ofthe No. 1 chromosome is 1. 595; No. 2 chromosme's average arm index is 1. 917, so we can call it secondary middle centromerechromosome (or sin chromosome). Former is different from Mr chen. Later is different from Mr Owen and Shoffner[2]