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Vive la difference! Self/non-self recognition and the evolution of signatures of identity in arms races with parasites.

cam.issuedOnline2019-02-11
cam.orpheus.successThu Jan 30 10:53:25 GMT 2020 - Embargo updated
dc.contributor.authorSpottiswoode, Claire N
dc.contributor.authorBusch, Robert
dc.contributor.orcidSpottiswoode, Claire [0000-0003-3232-9559]
dc.date.accessioned2019-01-22T00:30:37Z
dc.date.available2019-01-22T00:30:37Z
dc.date.issued2019-04-01
dc.description.abstractIn arms races with parasites, hosts can evolve defences exhibiting extensive variability within populations, which signals individual identity ('signatures'). However, few such systems have evolved, suggesting that the conditions for their evolution are uncommon. We review (a) polymorphic egg markings that allow hosts of brood-parasitic birds to recognize and reject parasitic eggs, and (b) polymorphic tissue antigens encoded in the major histocompatibility complex (MHC), which present self- and pathogen-derived peptides to T cells of the immune system. Despite the profound differences between these systems, they share analogous features: (i) self/non-self discrimination by a highly specific recognition system (bird eyes and T-cell antigen receptor, respectively), which antagonists may escape by evolving evasion or mimicry; (ii) a self substrate upon which diversifying selection can act (eggs, and MHC molecules); (iii) acquired knowledge of self (resulting in acceptance of own eggs, and immune tolerance); and (iv) fitness costs associated with attack on self or lack of parasite detection. We suggest that these features comprise a set of requirements for parasites to drive the evolution of identity signatures in hosts, which diminish the likelihood of recognition errors. This may help to explain the variety of trajectories arising from arms races in different antagonistic contexts. This article is part of the theme issue 'The coevolutionary biology of brood parasitism: from mechanism to pattern'.
dc.description.sponsorshipBBSRC Arthritis Research UK
dc.format.mediumPrint
dc.identifier.doi10.17863/CAM.35606
dc.identifier.eissn1471-2970
dc.identifier.issn0962-8436
dc.identifier.urihttps://www.repository.cam.ac.uk/handle/1810/288290
dc.languageeng
dc.language.isoeng
dc.publisherThe Royal Society
dc.publisher.urlhttp://dx.doi.org/10.1098/rstb.2018.0206
dc.subjectT-cell antigen presentation
dc.subjectavian egg pattern diversification
dc.subjectbrood parasites
dc.subjecthost/parasite arms races
dc.subjectmajor histocompatibility complex
dc.subjectnegative frequency-dependent selection
dc.subjectAnimals
dc.subjectAntigens
dc.subjectBiological Coevolution
dc.subjectBirds
dc.subjectHost-Parasite Interactions
dc.subjectMajor Histocompatibility Complex
dc.subjectNesting Behavior
dc.subjectOvum
dc.subjectRecognition, Psychology
dc.titleVive la difference! Self/non-self recognition and the evolution of signatures of identity in arms races with parasites.
dc.typeArticle
dcterms.dateAccepted2018-11-28
prism.issueIdentifier1769
prism.publicationDate2019
prism.publicationNamePhilos Trans R Soc Lond B Biol Sci
prism.startingPage20180206
prism.volume374
pubs.funder-project-idBiotechnology and Biological Sciences Research Council (BB/J014109/1)
pubs.funder-project-idThe Royal Society (dh0867528)
pubs.funder-project-idArthritis Research Uk (None)
rioxxterms.licenseref.startdate2019-04
rioxxterms.licenseref.urihttp://www.rioxx.net/licenses/all-rights-reserved
rioxxterms.typeJournal Article/Review
rioxxterms.versionAM
rioxxterms.versionofrecord10.1098/rstb.2018.0206

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