Chromosomal analysis of D. melanogaster long-term selected lines

Article Abstract:

The distribution and effect of genes responsible for the dorsocentral bristle number of Drosophila melanogaster reached by long-term selection was studied by crosses and chromosomal substitutions among five selected lines. Genetic analyses showed that variability originated in the course of selection by a low-probability nonrandom mechanism including the occurrence of rare recombination events.

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Modes of Selection and Recombination Response in Drosophila melanogaster

Article Abstract:

Research on Drosophila melanogaster sternopleural bristle number shows that individual fitness is enhanced through genetic recombination when environmental changes impact species populations. Evidence also suggests that rates of crossing over may be reduced in populations that are undergoing stabilizing selection.

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Inferences on the Role of Insertion in a Mutation Accumulation Experiment with Drosophila melanogaster Using RAPDs

Article Abstract:

Evidence is presented that supports the generality of prior estimates regarding spontaneous mutation rates for fitness and morphological fitness traits based on Drosophila melanogaster mutation accumulation lines.

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