Moriwaki K, Kato H, Tsuchiya K, Yosida T
Genetics. 1975 Feb;79(2):295-304. doi: 10.1093/genetics/79.2.295.
About 450 black rats (Rattus rattus) were collected from 25 localities in Asia and Oceania. Their serum transferrins were analyzed by a newly developed thin layer acrylamide gel electrophoresis accompanied with acrinol pretreatment, exhibiting 12 transferrin bands. Generally, Asian type rats (2N=42) had fast-moving transferrins (R-series), Ceylon type (2N=40) moderately moving ones and Oceanian type (2N=38) slowly moving ones (C-series). Exceptionally, in northern India and Pakistan all Asian-type rats had C-series Tf. The possibility that divergence of R-series Tf and C-series Tf had proceeded the karyotypic differentiation from 42 to 38 is proposed. In combination with the previous molecular data, the time of the divergence is roughly estimated between the order of a million years and ten thousand years.
从亚洲和大洋洲的25个地点收集了约450只黑家鼠（Rattus rattus）。采用新开发的经吖啶醇预处理的薄层丙烯酰胺凝胶电泳法分析它们的血清转铁蛋白，显示出12条转铁蛋白带。一般来说，亚洲型大鼠（2N = 42）具有快速移动的转铁蛋白（R系列），锡兰型（2N = 40）具有中等移动速度的转铁蛋白，大洋洲型（2N = 38）具有缓慢移动的转铁蛋白（C系列）。例外的是，在印度北部和巴基斯坦，所有亚洲型大鼠都具有C系列转铁蛋白。有人提出，R系列转铁蛋白和C系列转铁蛋白的分化可能先于核型从42条到38条的分化。结合先前的分子数据，分化时间大致估计在一百万年到一万年之间。
