{"title":"Polymorphic inversion and esterase loci complex on chromosome 2 of Drosophila buzzatii. II. Spatial variation.","authors":"W R Knibb, J S Barker","doi":"10.1071/bi9880239","DOIUrl":null,"url":null,"abstract":"<p><p>The potential influence of linked inversions on allele frequency variation at the Est-1 and Est-2 loci among Australian populations of D. buzzatii was determined by statistical analyses allele and inversion gametic frequencies. Most of the significant spatial and climatic associations found for all Est-1 allele frequencies, and for one allele only of Est-2 (Est-2c+), were accounted for by their linkage disequilibria with the inversions, which covaried with environmental variables. Consistent with this result, the spatial and climatic associations for conditional Est-1 and Est-2 allele frequencies tended to be different from those for the respective unadjusted allele frequencies. In one important respect, the results for Est-1 and Est-2 were not altered by inversions. For both unadjusted and conditional Est-1 allele frequencies, few climatic associations remain after correcting for geographic location, whereas for both unadjusted and conditional Est-2 allele frequencies, climatic associations remain after correcting for geographic location. Thus, apparent selection affecting allele frequencies at the Est-2 locus is not accounted for by linked inversions.</p>","PeriodicalId":8573,"journal":{"name":"Australian journal of biological sciences","volume":"41 2","pages":"239-46"},"PeriodicalIF":0.0000,"publicationDate":"1988-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"23","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Australian journal of biological sciences","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1071/bi9880239","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 23
Abstract
The potential influence of linked inversions on allele frequency variation at the Est-1 and Est-2 loci among Australian populations of D. buzzatii was determined by statistical analyses allele and inversion gametic frequencies. Most of the significant spatial and climatic associations found for all Est-1 allele frequencies, and for one allele only of Est-2 (Est-2c+), were accounted for by their linkage disequilibria with the inversions, which covaried with environmental variables. Consistent with this result, the spatial and climatic associations for conditional Est-1 and Est-2 allele frequencies tended to be different from those for the respective unadjusted allele frequencies. In one important respect, the results for Est-1 and Est-2 were not altered by inversions. For both unadjusted and conditional Est-1 allele frequencies, few climatic associations remain after correcting for geographic location, whereas for both unadjusted and conditional Est-2 allele frequencies, climatic associations remain after correcting for geographic location. Thus, apparent selection affecting allele frequencies at the Est-2 locus is not accounted for by linked inversions.