Reproductive evolution: symptom of a selfing syndrome.
In the nematode Caenorhabditis elegans, a single gene (plg-1) encodes the dominant protein found in mating plugs - a means of inhibiting multiple matings. Naturally occurring loss of plg-1 function results in males that fail to deposit mating plugs - a manifestation of relaxed sexual selection since the evolution of self-fertilization in this species.
Cutter
Asher D
AD
Department of Ecology and Evolutionary Biology, University of Toronto, Toronto, ON M5S 3B2, Canada. asher.cutter@utoronto.ca
D000818:Animals; D005075:Biological Evolution; D017173:Caenorhabditis elegans / Q000235:genetics / Q000502:physiology*; D002874:Chromosome Mapping; D012734:Disorders of Sex Development; D005260:Female; D008297:Male; D012098:Reproduction / Q000502:physiology; D012641:Selection, Genetic; D012726:Sexual Behavior, Animal