Mating dynamics in a nematode with three sexes and its evolutionary implications

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Chaudhuri, Jyotiska ; Bose, Neelanjan ; Tandonnet, Sophie ; Adams, Sally ; Zuco, Giusy ; Kache, Vikas ; Parihar, Manish ; von Reuss, Stephan H. ; Schroeder, Frank C. ; Pires-daSilva, Andre (2015)
  • Publisher: Nature Publishing Group
  • Journal: Scientific Reports, volume 5 (issn: 2045-2322, eissn: 2045-2322)
  • Related identifiers: doi: 10.1038/srep17676, pmc: PMC4668576
  • Subject: QL | Article

Nematodes have diverse reproductive strategies, which make them ideal subjects for comparative studies to address how mating systems evolve. Here we present the sex ratios and mating dynamics of the free-living nematode Rhabditis sp. SB347, in which males, females and hermaphrodites co-exist. The three sexes are produced by both selfing and outcrossing, and females tend to appear early in a mother’s progeny. Males prefer mating with females over hermaphrodites, which our results suggest is related to the female-specific production of the sex pheromones ascr#1 and ascr#9. We discuss the parallels between this system and that of parasitic nematodes that exhibit alternation between uniparental and biparental reproduction.\ud
  • References (61)
    61 references, page 1 of 7

    1. Weeks, S. C. eTh role of androdioecy and gynodioecy in mediating evolutionary transitions between dioecy and hermaphroditism in the Animalia. Evolution 66, 3670-3686 (2012).

    2. Pannell, J. R. eTh evolution and maintenance of androdioecy. Annu Rev Ecol Syst 33, 397-425 (2002).

    3. Darwin, C. eTh eefcts of cross and self fertilisation in the vegetable kingdom. (D. Appleton and company, 1877).

    4. Charlesworth, D. Androdioecy and the evolution of dioecy. Biol J Linn Soc 22, 333-348 (1984).

    5. Perry, L. E., Pannell, J. R. & Dorken, M. E. Two's company, three's a crowd: experimental evaluation of the evolutionary maintenance of trioecy in Mercurialis annua (Euphorbiaceae). PLoS One 7, e35597 (2012).

    6. Renner, S. S. & Ricklefs, R. E. Dioecy and its correlates in the flowering plants. Am J Bot 82, 596-606 (1995).

    7. Charlesworth, D. & Wright, S. I. Breeding systems and genome evolution. Curr Opin Genet Dev 11, 685-690 (2001).

    8. Ghiselin, M. T. eTh evolution of hermaphroditism among animals. Q Rev Biol 44, 189-208 (1969).

    9. Eppley, S. M. & Jesson, L. K. Moving to mate: the evolution of separate and combined sexes in multicellular organisms. J Evol Biol 21, 727-736 (2008).

    10. Chasnov, J. R. eTh evolution from females to hermaphrodites results in a sexual conflict over mating in androdioecious nematode worms and clam shrimp. J Evol Biol 23, 539-556 (2010).

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