Virility does not imply immensity: Testis size, accessory gland size and ejaculate depletion pattern do not evolve in response to experimental manipulation of sex ratio in Drosophila melanogaster.

@article{Chechi2017VirilityDN,
  title={Virility does not imply immensity: Testis size, accessory gland size and ejaculate depletion pattern do not evolve in response to experimental manipulation of sex ratio in Drosophila melanogaster.},
  author={Tejinder Singh Chechi and Zeeshan Ali Syed and N G Prasad},
  journal={Journal of insect physiology},
  year={2017},
  volume={98},
  pages={
          67-73
        }
}
  • Tejinder Singh Chechi, Zeeshan Ali Syed, N G Prasad
  • Published in Journal of insect physiology 2017
  • Medicine, Biology
  • Sperm competition theory predicts that with increase in sperm competition, males either invest more in reproductive organ(s) and/or improve ejaculate investment. We test this idea using experimental evolution in Drosophila melanogaster. We maintained replicate populations of Drosophila melanogaster under male (M) and female (F) biased sex ratio regimes for more than a hundred generations with the result that males from the M regime evolved higher sperm competitive abilities relative to males… CONTINUE READING

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