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Position: Home > Articles > Chromosomal Researches of Gansu White Pig, Duroc, Hampshire and the Crossbred Journal of Gansu Agricultural University 1988 (1) 14-31

甘肃白猪、杜洛克、汉普夏及其杂交猪的染色体研究

作  者:
那森;韩建林
摘  要:
通过对甘肃白猪、杜洛克、汉普夏及其杂交猪的群体细胞遗传学研究,发现在染色体组型特征上,甘肃白猪同杜洛克、汉普夏的差异较大,但同长白猪、苏白猪的差异较小;在甘肃白猪的两大地方类群中,临夏类群第8对染色体上次缢痕出现的频率高于武威类群。经过比较分析,可以肯定临农、武白、武民三个品群的遗传性基本稳定;染色体的研究完全有希望来预测杂种后代优势率的高低,即染色体的杂合性同杂种优势率有一定的相关性。
译  名:
Chromosomal Researches of Gansu White Pig, Duroc, Hampshire and the Crossbred
作  者:
Na Seng Han Jianling
摘  要:
The populational cytogenetics in Gansu white pig, Duroc,Hampshire and the crossbred were researched. It was showed that there were larger differences amomg Gansu white pig, Duroc and Hampshire and smaller differences among Gansu white pig, Landrace and Russian large white pig fn the characteristics of chromosomal complements. In two native groups of Gansu white pig, the frequencies of secondary constrictions in 8th chromosomes in Linxia group were higher than in Wuwei group. According to these results, it was confirmed that the genetical features in Linxia, Wuwei and Wuming groups were basically steady. It was hopeful in forecasting the heterosis by the analysis of chromosomes, and there were definite relations between the chromosomal heterogeneity and the heterotic vigor.

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