Genetic Background, Maternal Age, and Interaction Effects Mediate Rates of Crossing Over in Drosophila melanogaster Females.

Analysis of the full data complement for the y v interval using a generalized linear model reveals significant effects of line and maternal age ( P < 0.001 for both factors), and a marginally significant effect of genotype-by-age interaction on recombination rate variation ( Table 2 ).

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The marginal significance revealed by this logistic regression, coupled with the high significance revealed by the repeated measures ANOVA, indicate that our results are largely robust to statistical approach and, moreover, are consistent with a statistically significant line by age interaction effect.

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