Maintenance of Fertility in the Face of Meiotic Drive.

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  • Author(s): Meade L; Finnegan SR; Kad R; Fowler K; Pomiankowski A
  • Source:
    The American naturalist [Am Nat] 2020 Apr; Vol. 195 (4), pp. 743-751. Date of Electronic Publication: 2020 Mar 09.
  • Publication Type:
    Journal Article; Research Support, Non-U.S. Gov't
  • Language:
    English
  • Additional Information
    • Source:
      Publisher: University of Chicago Press Country of Publication: United States NLM ID: 2984688R Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1537-5323 (Electronic) Linking ISSN: 00030147 NLM ISO Abbreviation: Am Nat Subsets: MEDLINE
    • Publication Information:
      Publication: Chicago, IL : University of Chicago Press
      Original Publication: Salem, Mass. : Essex Institute
    • Subject Terms:
      Meiosis*; Diptera/*genetics ; Diptera/*physiology ; Fertility/*genetics; Animals ; Body Size ; Copulation/physiology ; Female ; Male ; Sex Ratio ; Spermatozoa ; Testis/anatomy & histology ; X Chromosome/genetics
    • Abstract:
      Selfish genetic elements that gain a transmission advantage through the destruction of sperm have grave implications for drive male fertility. In the X-linked meiotic drive system (SR) of a stalk-eyed fly, we found that SR males have greatly enlarged testes and maintain high fertility despite the destruction of half of their sperm, even when challenged with fertilizing large numbers of females. Conversely, we observed reduced allocation of resources to the accessory glands that probably explains the lower mating frequency of SR males. Body size and eye span were also reduced, which are likely to impair viability and precopulatory success. We discuss the potential evolutionary causes of these differences between drive and standard males.
    • Contributed Indexing:
      Keywords: accessory gland; meiotic drive; multiple mating; sex ratio distorter; sexual selection; sperm competition; stalk-eyed fly; testis
    • Publication Date:
      Date Created: 20200329 Date Completed: 20200928 Latest Revision: 20200928
    • Publication Date:
      20240829
    • Accession Number:
      10.1086/707372
    • Accession Number:
      32216661