biostudies-literatureNoble LMNICHD NIH HHSNIGMS NIH HHS2730-7https://www.ebi.ac.uk/biostudies/studies/S-EPMC4618159biostudies-literatureUnknown25(20)In sexual species, gametes have to find and recognize one another. Signaling is thus central to sexual reproduction and involves a rapidly evolving interplay of shared and divergent interests [1-4]. Among Caenorhabditis nematodes, three species have evolved self-fertilization, changing the balance of intersexual relations [5]. Males in these androdioecious species are rare, and the evolutionary interests of hermaphrodites dominate. Signaling has shifted accordingly, with females losing behavioral responses to males [6, 7] and males losing competitive abilities [8, 9]. Males in these species also show variable same-sex and autocopulatory mating behaviors [6, 10]. These behaviors could have evolved by relaxed selection on male function, accumulation of sexually antagonistic alleles that beneCurrent biology : CBNatural Variation in plep-1 Causes Male-Male Copulatory Behavior in C. elegans.PMC4618159F32 HD065442R01 GM089972McNelis DRiccardi DDIslam TNicodemus JPChang ASAmmerman PKramer MYen MPhillips MNoble LMRockman MVfalseNatural Variation in plep-1 Causes Male-Male Copulatory Behavior in C. elegans.In sexual species, gametes have to find and recognize one another. Signaling is thus central to sexual reproduction and involves a rapidly evolving interplay of shared and divergent interests [1-4]. Among Caenorhabditis nematodes, three species have evolved self-fertilization, changing the balance of intersexual relations [5]. Males in these androdioecious species are rare, and the evolutionary interests of hermaphrodites dominate. Signaling has shifted accordingly, with females losing behavioral responses to males [6, 7] and males losing competitive abilities [8, 9]. Males in these species also show variable same-sex and autocopulatory mating behaviors [6, 10]. These behaviors could have evolved by relaxed selection on male function, accumulation of sexually antagonistic alleles that bene2015-01-01T00:00:00Z2015 Oct2026-04-16T21:18:33.806Z2019-03-27T02:00:40ZS-EPMC46181592645530610.1016/j.cub.2015.09.019