Associations between Variation in X Chromosome Male Reproductive Genes and Sperm Competitive Ability in Drosophila melanogaster

Figure 2

Boxplot of the P1 scores of the 57 X replacement lines. The proportion of offspring sired by the X experimental male out of 57 naturally derived X chromosomes of D. melanogaster when the respective X-line male is the first to mate (followed by the cn bw control male). P1 scores are highly heterogeneous across lines (𝑃=1.38×10⁻⁶).