剑白香猪两品系染色体核型及其C带分析  

A study on the chromosome karyotype and C-banding of Jianbai Xiang pig

作　　者：曾琼 刘培琼[2] 张依裕[2] 徐如宏[3] 蔡惠芬[2] 

机构地区：[1]贵州省遵义市畜牧水产事业局,贵州遵义563002 [2]贵州大学动物科学学院,贵州贵阳550025 [3]贵州大学农学院,贵州贵阳550025

出　　处：《山地农业生物学报》2008年第2期109-113,共5页Journal of Mountain Agriculture and Biology

摘　　要：采用外周血淋巴细胞培养技术及C带显带技术，对剑白香猪Ⅰ系和Ⅱ系的染色体核型及C带进行了研究。结果表明，剑白香猪两品系细胞染色体数均为2n=38，二者的第3、4、7、9、10、11号染色体的部分核型参数差异显著（P〈0．05）或极显著（P〈0．01），其余染色体参数差异不显著（P〉0．05）；核型似近系数为0．9692，进化距离为0．0313，说明亲缘程度很高；染色体条比值均为1．01～1．05，其纯合性高；染色体C带发生位点均一致。C带的发生频率、带型特征具有多态性。Karyotype and C - banding were studied between Jianbai Xiang pig Ⅰ line and Ⅱ line using the peripheral blood lymphocyte culture technique and C-banding patterns. The results were as follows：the diploid chromosome number of Jianbai Xiang pig Ⅰ line and Ⅱ line is 2n =38; the part karyotype parameters of the third ,fourth, seventh, ninth, tenth, eleventh chromosome have differences （ P 〈 0.05 ） or sharply differences （ P 〈 0.01 ）, other number chromosome parameters have no differences（ P 〉 0.05 ） ;the karyotype resemblance-near coefficient is 0. 969 2, evolutionary distance of Jianbai Xiang pig is 0.0313, it indicates that relative extent is high; the chromosome length ration of Jianbai Xiang pig is between 1.01 and 1.05, it shows that pure property is high; C - banding occur location is the same, occur frequency and banding character have polymorphism.

关 键 词：剑白香猪 染色体 核型 C带 

分 类 号：S828.892[农业科学—畜牧学]