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dc.contributor.authorThorpe, Peter
dc.contributor.authorCarmen, Escudero-Martinez
dc.contributor.authorPeter, Cock
dc.contributor.authorEves-van-den-Akker, S
dc.contributor.authorJorunn, Boss
dc.date.accessioned2018-10-17T11:17:52Z
dc.date.available2018-10-17T11:17:52Z
dc.date.issued2018-10-01
dc.identifier.issn1759-6653
dc.identifier.urihttps://www.repository.cam.ac.uk/handle/1810/284083
dc.description.abstractAphids are a diverse group of taxa that contain agronomically important species, which vary in their host range and ability to infest crop plants. The genome evolution underlying agriculturally important aphid traits is not well understood. We generated draft genome assemblies for two aphid species: Myzus cerasi (black cherry aphid), and the cereal specialist Rhopalosiphum padi. Using a de novo gene prediction pipeline on both these, and three additional aphid genome assemblies (Acyrthosiphon pisum, D. noxia and M. persicae), we show that aphid genomes consistently encode similar gene numbers. We compare gene content, gene duplication, synteny, and putative effector repertoires between these five species to understand the genome evolution of globally important plant parasites. Aphid genomes show signs of relatively distant gene duplication, and substantial, relatively recent, gene birth. Putative effector repertoires, originating from duplicated and other loci have an unusual genomic organisation and evolutionary history. We identify a highly conserved effector-pair that is tightly physically-linked in the genomes of all aphid species tested. In R. padi, this effector pair is tightly transcriptionally-linked, and shares an unknown transcriptional control mechanism with a subset of approximately 50 other putative effectors and secretory proteins. This study extends our current knowledge on the evolution of aphid genomes and reveals evidence for an as of yet unknown shared control mechanism, which underlies effector expression, and ultimately plant parasitism.
dc.publisherOxford University Press
dc.rightsAttribution-NonCommercial 4.0 International
dc.rights.urihttp://creativecommons.org/licenses/by-nc/4.0/
dc.subjectaphids
dc.subjecteffectors
dc.subjectgenome evolution
dc.subjectshared transcriptional control
dc.subjecthorizontal gene transfer
dc.titleShared transcriptional control and disparate gain and loss of aphid parasitism genes
dc.typeArticle
prism.endingPage2733
prism.issueIdentifier10
prism.publicationDate2018
prism.publicationNameGenome Biology and Evolution
prism.startingPage2716
prism.volume10
dc.identifier.doi10.17863/CAM.31449
dcterms.dateAccepted2018-08-23
rioxxterms.versionofrecord10.1093/gbe/evy183
rioxxterms.versionVoR
rioxxterms.licenseref.urihttp://creativecommons.org/licenses/by-nc/4.0/
rioxxterms.licenseref.startdate2018-10-01
dc.publisher.urlhttps://academic.oup.com/gbe/article/10/10/2716/5079402
rioxxterms.typeJournal Article/Review
cam.issuedOnline2018-08-25
dc.identifier.urlhttps://academic.oup.com/gbe/article/10/10/2716/5079402
cam.orpheus.successThu Jan 30 10:54:15 GMT 2020 - The item has an open VoR version.
rioxxterms.freetoread.startdate2100-01-01


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Attribution-NonCommercial 4.0 International
Except where otherwise noted, this item's licence is described as Attribution-NonCommercial 4.0 International