PMCCPMCCPMCC

Search tips
Search criteria 

Advanced

 
Logo of procbThe Royal Society PublishingProceedings BAboutBrowse by SubjectAlertsFree Trial
 
Proc Biol Sci. 2004 May 22; 271(1543): 1009–1014.
PMCID: PMC1691690

Multiple mating and reproductive skew in Trinidadian guppies.

Abstract

Male offspring production in promiscuously mating species is typically more skewed than female offspring production. It is therefore advantageous for males to seek as many mating partners as possible. However, given the documented benefits of polyandry we expect females, as well as males, to mate multiply. We tested these ideas using Trinidadian guppies, Poecilia reticulata. Fishes were collected from the wild, housed in groups of 10 males and 10 females and allowed to reproduce freely over a period of three months. We used hypervariable microsatellite loci to identify the parents of 840 offspring and to quantify the variance in mating success. As anticipated, and in line with the Bateman gradient, there was greater skew in the number of progeny produced by males. By contrast, we found no sex difference in mating partner number over the duration of the experiment. A median of two males fathered each brood and there was marked turnover in the identities of the sires of successive broods. Female partner turnover was, however, less than expected under random mating. We suggest that partner switching over time, as well as polyandry within broods, could contribute to the maintenance of genetic diversity in guppy populations.

Full Text

The Full Text of this article is available as a PDF (106K).

Selected References

These references are in PubMed. This may not be the complete list of references from this article.
  • Bourke AF. Reproductive skew and split sex ratios in social Hymenoptera. Evolution. 2001 Oct;55(10):2131–2136. [PubMed]
  • Brooks R, Endler JA. Female guppies agree to differ: phenotypic and genetic variation in mate-choice behavior and the consequences for sexual selection. Evolution. 2001 Aug;55(8):1644–1655. [PubMed]
  • Dugatkin LA, Godin JG. Reversal of female mate choice by copying in the guppy (Poecilia reticulata). Proc Biol Sci. 1992 Aug 22;249(1325):179–184. [PubMed]
  • Evans JP, Magurran AE. Patterns of sperm precedence and predictors of paternity in the Trinidadian guppy. Proc Biol Sci. 2001 Apr 7;268(1468):719–724. [PMC free article] [PubMed]
  • Evans Jonathan P, Zane Lorenzo, Francescato Samuela, Pilastro Andrea. Directional postcopulatory sexual selection revealed by artificial insemination. Nature. 2003 Jan 23;421(6921):360–363. [PubMed]
  • Hughes KA, Du L, Rodd FH, Reznick DN. Familiarity leads to female mate preference for novel males in the guppy, Poecilia reticulata. Anim Behav. 1999 Oct;58(4):907–916. [PubMed]
  • Kelly CD, Godin J-GJ, Wright JM. Geographic variation in multiple paternity within natural populations of the guppy (Poecilia reticulata) Proc Biol Sci. 1999 Dec 7;266(1436):2403–2403. [PMC free article]
  • Knight Jonathan. Sexual stereotypes. Nature. 2002 Jan 17;415(6869):254–256. [PubMed]
  • Magurran AE. Sexual conflict and evolution in Trinidadian guppies. Genetica. 2001;112-113:463–474. [PubMed]
  • Matthews IM, Evans JP, Magurran AE. Male display rate reveals ejaculate characteristics in the Trinidadian guppy, Poecilia reticulata. Proc Biol Sci. 1997 May 22;264(1382):695–700. [PMC free article]
  • Urbani N, Sévigny JM, Sainte-Marie B, Zadworny D, Kuhnlein U. Identification of microsatellite markers in the snow crab Chionoecetes opilio. Mol Ecol. 1998 Mar;7(3):357–358. [PubMed]
  • Pilastro Andrea, Evans Jonathan P, Sartorelli Silvia, Bisazza Angelo. Male phenotype predicts insemination success in guppies. Proc Biol Sci. 2002 Jul 7;269(1498):1325–1330. [PMC free article] [PubMed]
  • Reusch TB, Häberli MA, Aeschlimann PB, Milinski M. Female sticklebacks count alleles in a strategy of sexual selection explaining MHC polymorphism. Nature. 2001 Nov 15;414(6861):300–302. [PubMed]
  • Sumner Seirian, Casiraghi Maurizio, Foster William, Field Jeremy. High reproductive skew in tropical hover wasps. Proc Biol Sci. 2002 Jan 22;269(1487):179–186. [PMC free article] [PubMed]
  • Taylor JS, Durkin JM, Breden F. The death of a microsatellite: a phylogenetic perspective on microsatellite interruptions. Mol Biol Evol. 1999 Apr;16(4):567–572. [PubMed]
  • Tregenza Tom, Wedell Nina. Polyandrous females avoid costs of inbreeding. Nature. 2002 Jan 3;415(6867):71–73. [PubMed]

Articles from Proceedings of the Royal Society B: Biological Sciences are provided here courtesy of The Royal Society