[Geographic variability of Adh-F allele frequency in populations of Drosophila melanogaster].
Variation of Adh-F allele frequency in seven regions of North and South America, Eurasia, Africa, and Australia was analyzed on the basis of published data. In six regions, regression of Adh-F frequency on latitude was positive; in four regions, slopes of the regression curves were identical. Regression on the average lowest temperature of the coldest month was negative in six regions. No definite trends in regression on the highest temperature of the hottest month and on rainfall in the most humid month and the driest months were found. Geographic differentiation of populations was independent of climatic parameters. Examination of variation in various climatic zones revealed that tropical populations were distinctly different from those from other climatic zones. No climatic differentiation of fixation index FST was detected. These results indicate that Adh polymorphism is maintained by natural selection.
Bubliĭ
O A
OA
Imasheva
A G
AG
D000426:Alcohol Dehydrogenase / Q000235:genetics*; D000483:Alleles; D000818:Animals; D002980:Climate; D004331:Drosophila melanogaster / Q000201:enzymology / Q000235:genetics*; D005787:Gene Frequency; D014644:Genetic Variation; D005843:Geography; D007527:Isoenzymes / Q000235:genetics*
D007527:Isoenzymes; D000426:Alcohol Dehydrogenase