Tsubota Y, Namikawa T
Laboratory of Animal Genetics, Faculty of Agriculture, Nagoya University, Japan.
Jikken Dobutsu. 1988 Apr;37(2):159-64. doi: 10.1538/expanim1978.37.2_159.
Among nine laboratory shrew lines originating from the Japanese islands (Nag, Tok, TKU, Ize, Tr and OKI lines), West Java (Bog), Bangladesh (BAN) and Sri Lanka (SRI), Nag, Tr and Bog were fixed with Amy-1b and SRI with Amy-1a. The remaining lines were still highly polymorphic with the two alleles. A new electrophoretic band C was found in the BAN line and concluded to be expressed by a codominant allele, Amy-1c, which was carried by a single heterozygous female from among eleven wild shrews of the original breeding stock. In most local populations of the Asian shrews surveyed, Amy-1b was more common than Amy-1a. The Sri Lanka population was clearly distinguishable from the others, being nearly fixed with Amy-1a. The C band was found in eleven (one homozygous) of 86 wild shrews caught in Bangladesh. Of a total of 234 wild shrews collected from four Japanese and two Indonesian islands, Bangladesh, and Sri Lanka, only two showed different AMY-bands from AMY-A, -B and -C, and such bands were not found in the laboratory-bred shrews examined.
在源自日本岛屿（长野、东京、筑波大学、伊势、特尔和冲縄岛品系）、西爪哇（茂物）、孟加拉国（BAN）和斯里兰卡（SRI）的九条实验性鼩鼱品系中，长野、特尔和茂物品系固定为Amy - 1b，而斯里兰卡品系固定为Amy - 1a。其余品系在这两个等位基因上仍具有高度多态性。在BAN品系中发现了一条新的电泳带C，并得出结论它由一个共显性等位基因Amy - 1c表达，该等位基因由原始繁殖种群的11只野生鼩鼱中的一只杂合雌性携带。在调查的大多数亚洲鼩鼱当地种群中，Amy - 1b比Amy - 1a更常见。斯里兰卡种群与其他种群明显不同，几乎固定为Amy - 1a。在孟加拉国捕获的86只野生鼩鼱中有11只（1只纯合）发现了C带。在从四个日本岛屿、两个印度尼西亚岛屿、孟加拉国和斯里兰卡收集的总共234只野生鼩鼱中，只有两只显示出与AMY - A、-B和 -C不同的AMY带，并且在所检查的实验室培育的鼩鼱中未发现此类带。
