【作者】 刘向萍； 王金玉； 戴国俊； 王生存； 张学余； 王克华； 陈宽维；

【Author】 Liu Xiangping Wang Jinyu Dai Guojun Wang ShengCunZhang Xueyu Wang Kehua Chen Kuanwei( Institute of Poultry Science of Jiangsu Yanghzou ,225003)( Animal Science and Veterinary Medicien College Yangzhou University ,225009)

【机构】 中国农科院家禽研究所； 扬州大学畜牧兽医学院；

【摘要】 对SR92A系和萧山鸡及其后代进行了DNA指纹分析,对条带的亲子代传递方式和分子标记J带进行了研究。根据DNA指纹结果分子量为3.48Kb的J带的有无分为四个交配组合,-/-表示亲本均不携带J带,+/+表示亲本均携带J带,-/+表示父亲无J带,母亲有J带,+/-则反之。结果表明:DNA指纹条带符合孟德尔遗传规律,是稳定遗传的。在所检测的个体中,-/-组合后代均为无J带个体,+/+组合后代均为有J带个体,在+/-和-/+组合中,两种类型都有。从DNA指纹的亲子代传递率来看,DNA指纹条带也是稳定遗传的。更多还原

【Abstract】 DNA fingerprinting in SR92A and Xiaoshan chicken is to study the genetic pattern of DNA fingerprint bands. Results are presented of DNA fingerprint segregation analyses carried out in 4 combinations. The DNA fingerprint bands are suit to Mendelian inheritance. Comparisons of slaughter traits are studied based on presence or absence of band J in their parents. There are 4 classifications of parental matings as follows :for absence of band J in both parents; -/ + for absence in sire, presence in dam; + /- for presence in sire ,absence in dam; for presence in both parents. In +/+ combination ,the offsprings are with band J; In -/- combination, the offsprings are without band J; In - /+ or + /-combination,the offsprings are with or without band J.更多还原