Remating in Drosophila melanogaster : an examination of the trading-up and intrinsic male-quality hypotheses

dc.contributor.authorByrne, Phillip G
dc.contributor.authorRice, William
dc.date.accessioned2015-12-13T22:55:34Z
dc.date.issued2005
dc.date.updated2015-12-11T11:11:09Z
dc.description.abstractFemale Drosophila melanogaster remate more frequently than necessary to ensure fertilization. We tested whether polyandrous females gain genetic benefits for their offspring by (1) selecting secondary sires of higher genetic-quality than original partners or (2) because post-copulatory mechanisms bias fertilizations towards genetically superior males. We screened 119 hemiclones of males for lifetime fitness then selected eight hemiclones (four of extreme high fitness and four of extreme low fitness) and mated them to virgin females. Females were then given the opportunity to remate with males of benchmark-genetic quality and their propensity to remate (fidelity) and sperm displacement scored. A female's fidelity and her level of sperm displacement varied depending on which hemiclone she mated first, but not on male-genetic quality. These findings indicate that female remating and sperm displacement are strongly influenced by male genotype, but provide no evidence that these traits contribute to adaptive female choice to obtain superior genes for offspring.
dc.identifier.issn1010-061X
dc.identifier.urihttp://hdl.handle.net/1885/82581
dc.publisherBlackwell Publishing Ltd
dc.sourceJournal of Evolutionary Biology
dc.subjectKeywords: polyandry; animal; article; comparative study; cross breeding; Drosophila melanogaster; female; genetics; male; phenotype; physiology; reproduction; sexual behavior; United States; Animals; California; Crosses, Genetic; Drosophila melanogaster; Female; Ma Drosophila; Genetic benefits; Polyandry; Sexual conflict
dc.titleRemating in Drosophila melanogaster : an examination of the trading-up and intrinsic male-quality hypotheses
dc.typeJournal article
local.bibliographicCitation.lastpage1331
local.bibliographicCitation.startpage1324
local.contributor.affiliationByrne, Phillip G, College of Medicine, Biology and Environment, ANU
local.contributor.affiliationRice, William, University of California
local.contributor.authoremailrepository.admin@anu.edu.au
local.contributor.authoruidByrne, Phillip G, u4051379
local.description.embargo2037-12-31
local.description.notesImported from ARIES
local.description.refereedYes
local.identifier.absfor060412 - Quantitative Genetics (incl. Disease and Trait Mapping Genetics)
local.identifier.ariespublicationMigratedxPub10832
local.identifier.citationvolume18
local.identifier.doi10.1111/j.1420-9101.2005.00918.x
local.identifier.scopusID2-s2.0-28444481761
local.identifier.uidSubmittedByMigrated
local.type.statusPublished Version

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