Anderson W W, Arnold J, Baldwin D G, Beckenbach A T, Brown C J, Bryant S H, Coyne J A, Harshman L G, Heed W B, Jeffery D E
Department of Genetics, University of Georgia, Athens 30602.
Proc Natl Acad Sci U S A. 1991 Nov 15;88(22):10367-71. doi: 10.1073/pnas.88.22.10367.
We report data that continue the studies of Dobzhansky and others on the frequencies of third-chromosome inversions in natural populations of Drosophila pseudoobscura in North America. The common gene arrangements continue to be present in frequencies similar to those described four decades ago, and the broad geographic patterns also remain unchanged. There is only one pronounced trend over time: the increase in frequency of the Tree Line inversion in Pacific coast populations.
我们报告的数据延续了多布赞斯基等人对北美拟暗果蝇自然种群中第三染色体倒位频率的研究。常见的基因排列频率仍与四十年前所描述的相似，广泛的地理分布模式也保持不变。随着时间推移只有一个明显的趋势：太平洋沿岸种群中树线倒位的频率增加。
