LEVITAN M
Science. 1961 Nov 17;134(3490):1617-9. doi: 10.1126/science.134.3490.1617-a.
Linked X-chromosome inversions of an eastern woods fly, Drosophila robusta, occur in two different nonrandom arrays. Since only one can be the nonrandom condition expected on the approach toward random equilibrium, at least one of the observed arrays must have an adaptive basis.
东部森林果蝇(Drosophila robusta)的连锁X染色体倒位以两种不同的非随机阵列形式出现。由于在趋向随机平衡的过程中,只有一种可能是预期的非随机状态,所以观察到的阵列中至少有一个具有适应性基础。