High frequency of multiple paternity in broods of a socially monogamous cichlid fish with biparental nest defence

Molecular Ecology
Kristina M SefcStephan Koblmüller

Abstract

In several animal taxa, genetic analyses have demonstrated that social monogamy and biparental brood care do not preclude polygamous reproduction. Few studies have been conducted in fish, but in fish species without alternative reproductive phenotypes, social monogamy was largely congruent with genetic parentage. In contrast to these findings, we report an exceptionally high level of multiple paternity in a socially monogamous cichlid fish with biparental nest defence (Variabilichromis moorii), inferred from microsatellite and mitochondrial data of 10 broods. Whereas all offspring in a nest shared a common mother, each brood was sired by 2 to > 10 males. None of the inferred sires was assigned a large proportion of the brood. Paternity was estimated as the minimum number of sires required to explain multilocus offspring genotypes, and as the maximum-likelihood number of sires given population allele frequencies. Analysis of simulated brood genotypes suggested that, although these two methods tend to under- and overestimate, respectively, the true number of sires, primary sires with many offspring in a brood would have been detected. Hence, the genetic data indicate that the nest tending males suffer substantial cuckoldry and pr...Continue Reading

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Citations

Nov 6, 2008·The Journal of Heredity·Kristina M Sefc, Stephan Koblmüller
Nov 25, 2011·Biology Letters·Tetsumi TakahashiMichio Hori
Oct 8, 2011·PloS One·Kathrin LangenTimo Thünken
Jan 5, 2014·International Journal of Evolutionary Biology·Kathrin LangenTheo C M Bakker
Jan 27, 2015·Behavioral Ecology and Sociobiology·Kyle ShackletonFrancis L W Ratnieks
Aug 9, 2011·International Journal of Evolutionary Biology·Kristina M Sefc
Aug 8, 2009·Molecular Ecology·K M SefcS Koblmüller
Jan 15, 2009·Molecular Ecology·Loren RiesebergNolan Kane
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Aug 14, 2012·International Journal of Evolutionary Biology·Kazutaka OtaMasanori Kohda
Sep 6, 2018·Molecular Ecology·Aneesh P H BoseKristina M Sefc
Apr 16, 2019·Molecular Ecology·Theresa RuegerGeoffrey P Jones
Feb 1, 2019·BMC Biology·Aneesh P H BoseKristina M Sefc
Nov 20, 2020·Scientific Reports·Zi Xun KuaStuart A Ludsin
Oct 3, 2021·Evolution; International Journal of Organic Evolution·Priya Iyer, Abhishek Shukla

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