Bowling A T
Veterinary Genetics Laboratory, School of Veterinary Medicine, University of California, Davis 95616-8744.
Anim Genet. 1994 Jun;25 Suppl 1:67-74. doi: 10.1111/j.1365-2052.1994.tb00405.x.
The genetic make-up of Great Basin wild (feral) horses was investigated by blood typing studies. Blood samples of 975 feral horses from seven trap sites in Nevada and Oregon were tested by serological and electrophoretic techniques for genetic markers at 19 polymorphic loci. The average number of variants for the seven feral populations [72.1 +/- 3.2 (SEM), range 62-85] was not significantly different from that of 16 domestic breeds (75.0 +/- 11.5, range 58-105). The expected average frequency of heterozygotes per locus (average heterozygosity) for the feral populations (0.402 +/- 0.009, range 0.368-0.442) was not significantly different from the domestic breeds (0.389 +/- 0.045, range 0.295-0.443). Dendrograms constructed using pairwise comparisons of Nei's distance measurements substantiated anecdotal accounts of the origins of Great Basin horses from Iberian, American saddle horse and draft horse breeds.
通过血型研究对大盆地野生（放养）马的基因构成进行了调查。对内华达州和俄勒冈州七个诱捕点的975匹放养马的血样，采用血清学和电泳技术检测了19个多态位点的基因标记。七个放马种群的变异平均数为[72.1±3.2（标准误），范围62 - 85]，与16个家养品种的变异平均数（75.0±11.5，范围58 - 105）无显著差异。放马种群每个位点杂合子的预期平均频率（平均杂合度）为（0.402±0.009，范围0.368 - 0.442），与家养品种（0.389±0.045，范围0.295 - 0.443）无显著差异。使用奈氏距离测量值进行成对比较构建的树形图，证实了关于大盆地马起源于伊比利亚马、美国鞍马和挽马品种的传闻。
