10.5061/DRYAD.76R4C
Masly, John P.
University of Oklahoma
Kamimura, Yoshitaka
Keio University
Data from: Asymmetric mismatch in strain-specific genital morphology
causes increased harm to Drosophila females
Dryad
dataset
2014
Selection - Sexual
2014-04-15T19:52:34Z
2014-04-15T19:52:34Z
en
https://doi.org/10.1111/evo.12436
1369527 bytes
1
CC0 1.0 Universal (CC0 1.0) Public Domain Dedication
Although several evolutionary forces have been proposed to contribute to
genital morphological diversification, it is unclear which might act early
during the evolution of novel structural traits. We test the hypothesis
that mismatch between interacting male and female secondary sexual
structures gives rise to increased harm to females, consistent with the
outcome predicted from a history of sexual conflict. We mate Drosophila
sechellia females to males from a collection of D. mauritiana-D. sechellia
interspecific genetic introgression lines that possess quantitative
morphological variation in the posterior lobe of the genital arch, an
external genital structure that can cause wounds to the female abdomen
during mating. We find that males with smaller posterior lobes, and those
that possess lobes with similarities in shape to D. mauritiana, cause more
severe wounding compared to either D. sechellia males with strain-specific
morphologies or introgression males that possess larger lobes or lobes
with more pronounced D. sechellia features. These results suggest a
possible history of sexual conflict during the evolution of the posterior
lobe in D. sechellia, but also suggest a potential contribution of
divergence in sensory recognition mechanisms to posterior lobe evolution.
Posterior lobe coordinatesPosterior lobe outline x,y
coordinatesPOSTERIOR_LOBE_XY_COORDS.zipWounding dataTab-delimited text
file with wounding measures and associated data.WOUNDS.txt