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dc.contributor.authorWilkinson, Melanie J
dc.contributor.authorRoda, Federico
dc.contributor.authorWalter, Greg M
dc.contributor.authorJames, Maddie E
dc.contributor.authorNipper, Rick
dc.contributor.authorWalsh, Jessica
dc.contributor.authorAllen, Scott L
dc.contributor.authorNorth, Henry L
dc.contributor.authorBeveridge, Christine A
dc.contributor.authorOrtiz-Barrientos, Daniel
dc.date.accessioned2022-01-07T16:51:27Z
dc.date.available2022-01-07T16:51:27Z
dc.date.issued2021-11-23
dc.identifier.issn0027-8424
dc.identifier.otherPMC8617494
dc.identifier.other34789571
dc.identifier.urihttps://www.repository.cam.ac.uk/handle/1810/332397
dc.description.abstractNatural selection is responsible for much of the diversity we see in nature. Just as it drives the evolution of new traits, it can also lead to new species. However, it is unclear whether natural selection conferring adaptation to local environments can drive speciation through the evolution of hybrid sterility between populations. Here, we show that adaptive divergence in shoot gravitropism, the ability of a plant's shoot to bend upwards in response to the downward pull of gravity, contributes to the evolution of hybrid sterility in an Australian wildflower, Senecio lautus We find that shoot gravitropism has evolved multiple times in association with plant height between adjacent populations inhabiting contrasting environments, suggesting that these traits have evolved by natural selection. We directly tested this prediction using a hybrid population subjected to eight rounds of recombination and three rounds of selection in the field. Our experiments revealed that shoot gravitropism responds to natural selection in the expected direction of the locally adapted population. Using the advanced hybrid population, we discovered that individuals with extreme differences in gravitropism had more sterile crosses than individuals with similar gravitropic responses, which were largely fertile, indicating that this adaptive trait is genetically correlated with hybrid sterility. Our results suggest that natural selection can drive the evolution of locally adaptive traits that also create hybrid sterility, thus revealing an evolutionary connection between local adaptation and the origin of new species.
dc.languageeng
dc.publisherProceedings of the National Academy of Sciences
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 International
dc.rights.urihttps://creativecommons.org/licenses/by-nc-nd/4.0/
dc.sourceessn: 1091-6490
dc.sourcenlmid: 7505876
dc.subjectHybrid sterility
dc.subjectNatural selection
dc.subjectspeciation
dc.subjectLocal Adaptation
dc.subjectIntrinsic Reproductive Isolation
dc.subjectSenecio
dc.subjectPlant Shoots
dc.subjectInfertility
dc.subjectIndoleacetic Acids
dc.subjectSulfurtransferases
dc.subjectArabidopsis Proteins
dc.subjectAdaptation, Physiological
dc.subjectGravitropism
dc.subjectPhenotype
dc.subjectAustralia
dc.subjectGenetic Variation
dc.subjectSelection, Genetic
dc.titleAdaptive divergence in shoot gravitropism creates hybrid sterility in an Australian wildflower.
dc.typeArticle
dc.date.updated2022-01-07T16:51:26Z
prism.issueIdentifier47
prism.publicationNameProc Natl Acad Sci U S A
prism.volume118
dc.identifier.doi10.17863/CAM.79843
dcterms.dateAccepted2021-10-02
rioxxterms.versionofrecord10.1073/pnas.2004901118
rioxxterms.versionVoR
rioxxterms.licenseref.urihttps://creativecommons.org/licenses/by-nc-nd/4.0/
dc.contributor.orcidWilkinson, Melanie J [0000-0003-1400-3176]
dc.contributor.orcidRoda, Federico [0000-0002-7923-9713]
dc.contributor.orcidWalter, Greg M [0000-0002-0883-3440]
dc.contributor.orcidJames, Maddie E [0000-0001-6296-0187]
dc.contributor.orcidWalsh, Jessica [0000-0003-3926-6503]
dc.contributor.orcidNorth, Henry L [0000-0002-8773-2428]
dc.contributor.orcidBeveridge, Christine A [0000-0003-0878-3110]
dc.contributor.orcidOrtiz-Barrientos, Daniel [0000-0002-7493-416X]
dc.identifier.eissn1091-6490
pubs.funder-project-idAustralian Research Council (DP120104559, DP190103039, DP0986172, DP140103774, DP0986175)
cam.issuedOnline2021-11-17


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