灰黄稻鼠（啮齿目，仓鼠科）的进化模式。I. 不同染色体数目的种群中的蛋白质多态性

Patterns of evolution in Graomys griseoflavus (Rodentia, Cricetidae). I. Protein polymorphism in populations with different chromosome numbers.

作者信息

Theiler G R, Gardenal C N

机构信息

Cátedra de Quimica Biológica, Facultad de Ciencias Médicas, Universidad Nacional de Córdoba, Argentina.

出版信息

Hereditas. 1994;120(3):225-9. doi: 10.1111/j.1601-5223.1994.00225.x.

DOI:10.1111/j.1601-5223.1994.00225.x

PMID:7928387

Abstract

Protein polymorphism has been studied by means of starch gel electrophoresis of tissue extracts in three population samples of Graomys griseoflavus collected at different sites in central-west Argentina. Individuals from two of the samples had chromosomal number 2n = 42 and those from the other sample, 2n = 38, 37 or 36. A total of 28 loci were analyzed. High levels of variability were observed in three samples (P ranging between 0.46 and 0.66; H (epsilon) from 0.160 to 0.188). Genetic distance values between populations with different chromosome numbers were 0.088 and 0.093. Tests in the laboratory showed the existence of post-zygotic reproductive isolation between animals with 2n = 42 and those with 2n = 38, 37 or 36.

摘要

通过对从阿根廷中西部不同地点采集的三个黄灰鼠种群样本的组织提取物进行淀粉凝胶电泳，研究了蛋白质多态性。其中两个样本的个体染色体数目为2n = 42，另一个样本的个体染色体数目为2n = 38、37或36。总共分析了28个基因座。在三个样本中观察到了高水平的变异性（P值在0.46至0.66之间；H(ε)从0.160至0.188）。不同染色体数目的种群之间的遗传距离值为0.088和0.093。实验室测试表明，2n = 42的动物与2n = 38、37或36的动物之间存在合子后生殖隔离。