AREA EFFECT AND NON-ADAPTIVE VARIATION BETWEEN POPULATIONS OF CEPAEA (MOLLUSCA)
AREA EFFECT AND NON-ADAPTIVE VARIATION BETWEEN POPULATIONS OF CEPAEA (MOLLUSCA)
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DOI：
10.1038/hdy.1963.51
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发表时间：
1963-01-01
期刊：
影响因子：
3.8
通讯作者：
GOODHART, CB
中科院分区：
文献类型：
--
作者：
GOODHART, CB
A·J·凯恩和J·D·柯里(Phil.翻译过来的。R.Soc，246：1-81,1963)，进行了批判性讨论。结果表明，它们可能是由于很久以前在小的分离的基础群体中的基因的随机分类而产生的“创始人效应”，导致在不同的地区建立了不同的平衡多态系统，它们现在接触的地方是通过遗传不亲和性维持的。因此，观察到的巨大遗传差异并不一定表明环境选择中存在着如所声称的那样尚未确定的差异。
The "area effects" in populations of the polymorphic land-snails Cepaea species on chalk downs in England, described by A. J. Cain and J. D. Currey (Phil. Trans. R. Soc, 246: 1-81, 1963), are critically discussed. It is concluded that they could have originated as "founder effects" by the random assortment of genes in small separated foundation stocks a long time ago, leading to the establishment of different systems of balanced polymorphism in the different areas, which where they are now in contact are maintained by genetical incompatibility. The large genetic differences observed need not therefore necessarily indicate the existence of as yet unidentified differences in environmental selection, as has been claimed.