Quantifying variation in the ability of yeasts to attract Drosophila melanogaster

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dc.contributor.author Palanca, L en
dc.contributor.author Gaskett, Anne en
dc.contributor.author Günther, CS en
dc.contributor.author Newcomb, Richard en
dc.contributor.author Goddard, Matthew en
dc.date.accessioned 2015-01-06T21:47:13Z en
dc.date.issued 2013 en
dc.identifier.citation PLoS One, 2013, 8 (9), Article number e75332 en
dc.identifier.uri http://hdl.handle.net/2292/23947 en
dc.description.abstract Yeasts that invade and colonise fruit significantly enhance the volatile chemical diversity of this ecosystem. These modified bouquets are thought to be more attractive to Drosophila flies than the fruit alone, but the variance of attraction in natural yeast populations is uncharacterised. Here we investigate how a range of yeast isolates affect the attraction of female D. melanogaster to fruit in a simple two choice assay comparing yeast to sterile fruit. Of the 43 yeast isolates examined, 33 were attractive and seven repellent to the flies. The results of isolate-versus-isolate comparisons provided the same relative rankings. Attractiveness varied significantly by yeast, with the strongly fermenting Saccharomyces species generally being more attractive than the mostly respiring non-Saccharomyces species (P = 0.0035). Overall the habitat (fruit or other) from which the isolates were directly sampled did not explain attraction (P = 0.2352). However, yeasts isolated from fruit associated niches were more attractive than those from non-fruit associated niches (P = 0.0188) regardless of taxonomic positioning. These data suggest that while attractiveness is primarily correlated with phylogenetic status, the ability to attract Drosophila is a labile trait among yeasts that is potentially associated with those inhabiting fruit ecosystems. Preliminary analysis of the volatiles emitted by four yeast isolates in grape juice show the presence/absence of ethanol and acetic acid were not likely explanations for the observed variation in attraction. These data demonstrate variation among yeasts for their ability to attract Drosophila in a pattern that is consistent with the hypothesis that certain yeasts are manipulating fruit odours to mediate interactions with their Drosophila dispersal agent. en
dc.format.medium Electronic-eCollection en
dc.language eng en
dc.relation.ispartofseries PLoS One en
dc.rights Items in ResearchSpace are protected by copyright, with all rights reserved, unless otherwise indicated. Previously published items are made available in accordance with the copyright policy of the publisher. Details obtained from http://www.plos.org/open-access/ http://www.sherpa.ac.uk/romeo/issn/1932-6203/ en
dc.rights.uri https://researchspace.auckland.ac.nz/docs/uoa-docs/rights.htm en
dc.rights.uri http://creativecommons.org/licenses/by/4.0/ en
dc.subject Animals en
dc.subject Vitis en
dc.subject Fruit en
dc.subject Analysis of Variance en
dc.subject Phylogeny en
dc.subject Symbiosis en
dc.subject Chemotaxis en
dc.subject Species Specificity en
dc.subject Gas Chromatography-Mass Spectrometry en
dc.subject Yeasts en
dc.subject Odors en
dc.subject Volatile Organic Compounds en
dc.subject Drosophila melanogaster en
dc.subject New Zealand en
dc.subject Female en
dc.title Quantifying variation in the ability of yeasts to attract Drosophila melanogaster en
dc.type Journal Article en
dc.identifier.doi 10.1371/journal.pone.0075332 en
pubs.issue 9 en
pubs.volume 8 en
dc.description.version VoR - Version of Record en
dc.identifier.pmid 24086510 en
dc.rights.accessrights http://purl.org/eprint/accessRights/OpenAccess en
pubs.subtype Article en
pubs.elements-id 407345 en
pubs.org-id Science en
pubs.org-id Biological Sciences en
dc.identifier.eissn 1932-6203 en
pubs.number e75332 en
pubs.record-created-at-source-date 2015-01-07 en
pubs.dimensions-id 24086510 en

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