Molecular and phenotypic variation in the achaete-scute region of Drosophila melanogaster

摘要: Variation in quantitative characters underlies much adaptive evolution and provides the basis for selective improvement of domestic species, yet genetic nature variation is poorly understood. Many loci affecting traits have been identified by segregation mutant alleles with major qualitative effects. These may represent an extreme a continuum allelic effects, most could result from subtle effects at The achaete-scute complex Drosophila melanogaster plays central part bristle development has characterized molecular level. hypothesis that naturally occurring number be associated wild-type was tested correlating phenotypic restriction maps this region among chromosomes extracted natural populations. DNA insertion found to strongly number.