拉氏棉鼠（啮齿目，仓鼠科）种群中的杂合性与基因流动
Heterozygosity and gene flow in populations of Calomys laucha (Rodentia, Cricetidae).
作者信息
Garcia B A, Gardenal C N, Blanco A
机构信息
Cátedra de Química Biológica, Facultad de Ciencias Médicas, Universidad Nacional de Córdoba, Argentina.
出版信息
Hereditas. 1990;112(2):179-86. doi: 10.1111/j.1601-5223.1990.tb00055.x.
Enzyme polymorphism was studied by means of starch gel electrophoresis on five population samples of Calomys laucha collected in different sites and seasons. C. laucha, a cricetid rodent inhabiting preferentially cultivated fields in the central-eastern plains of Argentina, is a reservoir-host of Junin virus, agent of Argentine hemorrhagic fever. Results show high levels of genic variability in all the samples (P from 62.50 to 77.27; H from 0.118 to 0.163) and low genetic distance among populations (D from 0.0024 to 0.0167). Estimations of gene flow (mean Nm = 10.78) indicate a high migration capability of the species and the possibility of further dispersal of Junin virus.
通过淀粉凝胶电泳法，对在不同地点和季节采集的五个劳氏棉鼠种群样本进行了酶多态性研究。劳氏棉鼠是一种仓鼠科啮齿动物，主要栖息在阿根廷中东部平原的耕地上，是胡宁病毒（阿根廷出血热的病原体）的储存宿主。结果显示，所有样本中的基因变异水平都很高（P值从62.50到77.27；H值从0.118到0.163），种群间的遗传距离较低（D值从0.0024到0.0167）。基因流估计值（平均Nm = 10.78）表明该物种具有很高的迁移能力，以及胡宁病毒进一步传播的可能性。
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