| 滩羊、寒羊、蒙古羊品种间遗传距离的研究 |
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| 引用本文： | 张建中,张沅,叶其铿.滩羊、寒羊、蒙古羊品种间遗传距离的研究[J].畜牧兽医学报,1991,22(4):289-294. |
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| 作者姓名： | 张建中 张沅 叶其铿 |
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| 作者单位： | 北京市饲料公司
(张建中)，北京农业大学畜牧系
(张沅)，北京农业大学畜牧系(叶其铿) |
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| 摘 要： | 本研究采集了4、5岁滩羊、寒羊、蒙古羊血样各80、38、82个,测定血清中12项生化指标,经方差分析,除血清胆红素(BIL)外,其他11项血液生化指标品种间差异显著。采用主成分分析法利用这11项血液生化指标计算上述3个品种间的遗传距离,并依据遗传距离作聚类分析。分析结果表明,可以用本研究所选的11项血液生化指标来计算绵羊品种间的遗传距离。同时指出,寒羊与蒙古羊的遗传距离较近,滩羊与寒羊和蒙古羊的遗传距离较远。本文还应用聚类分析法对主成分分析法的结果进行了验证。并在主成分分析和聚类分析结果一致的基础上,用Fisher判别法进一步证实了上述分析结果的可靠性。
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| 关 键 词： | 遗传距离 主成分分析 聚类分析 判别分析 |
RESEARCH OF THE GENETIC DISTANCE AMONG THE TAN-SHEEP, THE HAN-SHEEP AND THE MONGOLIA-SHEEP BREEDS |
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| Zhang Jianzhong.RESEARCH OF THE GENETIC DISTANCE AMONG THE TAN-SHEEP, THE HAN-SHEEP AND THE MONGOLIA-SHEEP BREEDS[J].Acta Veterinaria et Zootechnica Sinica,1991,22(4):289-294. |
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| Authors: | Zhang Jianzhong |
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| Abstract: | Eighty,38 and 82 blood samples were collected from the Tan-sheep, the Han-sheep and the Mongolia-sheep in 4 to 5 years old specifically. Twelve physiological-biochemical quotas in the serum were determined.There were no obvious differences in bilrubin among the breeds by the variance analysis, so this trait was deleted.The genetic distance (GD) among the three sheep breeds was calculated with the principal component analysis. The cluster analysis was done according to the genetic distance. The results show that the eleven physiological-biochemical quotas were useful for calculating the GD among the sheep bre- eds, and the GD between the Han-sheep and the Mongolia-sheep was small, while the GD between the Tan-sheep and the other two sheep breeds was larger. The cluster analysis was used to prove the result of the principal component analysis. Based on the same results of the principal component analysis and the cluster analysis, the Fisher-discriminating analysis also confirmed the reliability of the results. |
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| Keywords: | Genetic distance Principal component analysis Cluster analysis Discriminating analysis |
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