Loudenslager E J
Biochem Genet. 1978 Dec;16(11-12):1165-79. doi: 10.1007/BF00484537.
The genetic structure of nine Peromyscus maniculatus nebrascensis demes from southeastern Wyoming was determined by analyzing allozymes encoded by 23 genetic loci with polyacrylamide gel electrophoresis. Genetic variability is extremely high for two genetic parameters; the proportion of loci polymorphic per deme averaged 0.41. Previous estimates of genetic heterozygosity for species within the genus Peromyscus have a mean of 0.06. The results of the present study suggest that genetic heterozygosity is considerably higher within P. maniculatus demes than within demes of other species in the genus. Geographic range is correlated with heterozygosity among Peromyscus species, as is adaptive divergence into broad-niched species. These correlates suggest that high heterozygosity may reflect an adaptation to a variable environment.
通过聚丙烯酰胺凝胶电泳分析由23个基因位点编码的等位酶，确定了来自怀俄明州东南部的9个蒙大拿鹿鼠种群的遗传结构。对于两个遗传参数而言，遗传变异性极高；每个种群中多态性位点的比例平均为0.41。先前对鹿鼠属内物种遗传杂合性的估计均值为0.06。本研究结果表明，蒙大拿鹿鼠种群内的遗传杂合性明显高于该属其他物种的种群。地理范围与鹿鼠属物种间的杂合性相关，适应分化为广适性物种也是如此。这些相关性表明，高杂合性可能反映了对多变环境的一种适应。
