Nonrandom Association between Structural Amy and Regulatory map Variants in DROSOPHILA MELANOGASTER.
Populations of Drosophila melanogaster were investigated for variation in structural Amy genes, coding for different electrophoretic variants, and regulatory genes that determine the tissue-specific production patterns of alpha-amylase in the midguts of adults and larvae. Analysis of strains homozygous for second chromosomes extracted from three cage populations of different geographical origin revealed a consistent nonrandom association between Amy and midgut activity pattern (map) variants of alpha-amylase in adults and third-instar larvae. The origin and maintenance of the linkage disequilibrium between Amy and map genes are discussed.
Klarenberg
A J
AJ
Department of Population, University of Utrecht, Padualaan 8, 3584.
Scharloo
W
W