倒位无法解释同工酶梯度。
Inversions fail to account for allozyme clines.
机构信息
Departments of Genetics and Statistics, North Carolina State University, Raleigh, North Carolina 27607.
出版信息
Genetics. 1978 Mar;88(3):515-27. doi: 10.1093/genetics/88.3.515.
Abstract
Allozyme and inversion data from natural populations of Drosophila melanogaster from the eastern United States were analyzed to determine whether the clines at allozyme loci are due to nonrandom associations with common cosmopolitan inversions. All inversions show strong clines. Clines were large and significant for half of the eight allozyme loci. An analysis of the contribution of inversions to clines of allozyme genes revealed three outcomes: the inversion cline (1) enhanced the allozyme cline, but was only partly responsible, (2) reduced the allozyme cline, and (3) had no effect. The allozyme clines were mainly determined by the pattern of allele frequencies within the chromosomal arrangements. Consequently, it was concluded that allozyme clines would exist in the absence of inversion clines.
摘要
从美国东部的黑腹果蝇自然种群中获得的同工酶和倒位数据进行了分析，以确定同工酶基因座的梯度是否归因于与常见世界性倒位的非随机关联。所有的倒位都显示出强烈的梯度。八个同工酶基因座中有一半的梯度非常大且显著。对倒位对同工酶基因梯度的贡献的分析揭示了三种结果：（1）倒位梯度增强了同工酶梯度，但只部分负责；（2）降低了同工酶梯度；（3）没有影响。同工酶梯度主要由染色体排列内的等位基因频率模式决定。因此，得出结论，即使没有倒位梯度，同工酶梯度也会存在。
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