Genomic signatures of cooperation and conflict in the social amoeba

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dc.citation.issue12
dc.citation.volume25
dc.contributor.authorOstrowski EA
dc.contributor.authorShen Y
dc.contributor.authorTian X
dc.contributor.authorSucgang R
dc.contributor.authorJiang H
dc.contributor.authorQu J
dc.contributor.authorKatoh-Kurasawa M
dc.contributor.authorBrock DA
dc.contributor.authorDinh C
dc.contributor.authorLara-Garduno F
dc.contributor.authorLee SL
dc.contributor.authorKovar CL
dc.contributor.authorDinh HH
dc.contributor.authorKorchina V
dc.contributor.authorJackson LR
dc.contributor.authorPatil S
dc.contributor.authorHan Y
dc.contributor.authorChaboub L
dc.contributor.authorShaulsky G
dc.contributor.authorMuzny DM
dc.contributor.authorWorley KC
dc.contributor.authorGibbs RA
dc.contributor.authorRichards S
dc.contributor.authorKuspa A
dc.contributor.authorStrassmann JE
dc.contributor.authorQueller DC
dc.date.available2015-06-15
dc.date.available2015-04-22
dc.date.issued2015-01-01
dc.description.abstract© 2015 Elsevier Ltd. Summary Cooperative systems are susceptible to invasion by selfish individuals that profit from receiving the social benefits but fail to contribute. These so-called "cheaters" can have a fitness advantage in the laboratory, but it is unclear whether cheating provides an important selective advantage in nature. We used a population genomic approach to examine the history of genes involved in cheating behaviors in the social amoeba Dictyostelium discoideum, testing whether these genes experience rapid evolutionary change as a result of conflict over spore-stalk fate. Candidate genes and surrounding regions showed elevated polymorphism, unusual patterns of linkage disequilibrium, and lower levels of population differentiation, but they did not show greater between-species divergence. The signatures were most consistent with frequency-dependent selection acting to maintain multiple alleles, suggesting that conflict may lead to stalemate rather than an escalating arms race. Our results reveal the evolutionary dynamics of cooperation and cheating and underscore how sequence-based approaches can be used to elucidate the history of conflicts that are difficult to observe directly.
dc.description.publication-statusPublished
dc.format.extent1661 - 1665
dc.identifierhttp://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000356562500029&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=c5bb3b2499afac691c2e3c1a83ef6fef
dc.identifier.citationCURRENT BIOLOGY, 2015, 25 (12), pp. 1661 - 1665
dc.identifier.doi10.1016/j.cub.2015.04.059
dc.identifier.eissn1879-0445
dc.identifier.elements-id401810
dc.identifier.harvestedMassey_Dark
dc.identifier.issn0960-9822
dc.relation.isPartOfCURRENT BIOLOGY
dc.relation.urihttps://www.sciencedirect.com/science/article/pii/S096098221500545X?via=ihub
dc.rightsUnder an Elsevier user license
dc.subject.anzsrc06 Biological Sciences
dc.subject.anzsrc11 Medical and Health Sciences
dc.subject.anzsrc17 Psychology and Cognitive Sciences
dc.titleGenomic signatures of cooperation and conflict in the social amoeba
dc.typeJournal article
pubs.notesNot known
pubs.organisational-group/Massey University
pubs.organisational-group/Massey University/College of Sciences
pubs.organisational-group/Massey University/College of Sciences/School of Natural Sciences
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