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Directional Selection on Tree Seedling Traits Driven by Experimental Drought Differs Between Mesic and Dry Populations

2021Artigo científico Acesso aberto
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dc.contributor.authorCosta e Silva, João
dc.contributor.authorJordan, Rebecca
dc.contributor.authorPotts, Brad M.
dc.contributor.authorPinkard, Elisabeth
dc.contributor.authorProber, Suzanne M.
dc.date.accessioned2022-01-24T12:19:21Z
dc.date.available2022-01-24T12:19:21Z
dc.date.issued2021
dc.descriptionOriginal Researchpt_PT
dc.description.abstractWe evaluated population differences and drought-induced phenotypic selection on four seedling traits of the Australian forest tree Eucalyptus pauciflora using a glasshouse drydown experiment. We compared dry and mesic populations and tested for directional selection on lamina length (reflecting leaf size), leaf shape, the node of ontogenetic transition to the petiolate leaf (reflecting the loss of vegetative juvenility), and lignotuber size (reflecting a recovery trait). On average, the dry population had smaller and broader leaves, greater retention of the juvenile leaf state and larger lignotubers than the mesic population, but the populations did not differ in seedling survival. While there was statistical support for directional selection acting on the focal traits in one or other population, and for differences between populations in selection gradient estimates for two traits, only one trait—lamina length—exhibited a pattern of directional selection consistent with the observed population differences being a result of past adaptation to reduce seedling susceptibility to acute drought. The observed directional selection for lamina length in the mesic population suggests that future increases in drought risk in the wild will shift the mean of the mesic population toward that of the dry population. Further, we provide evidence suggesting an early age trade-off between drought damage and recovery traits, with phenotypes which develop larger lignotubers early being more susceptible to drought death. Such trade-offs could have contributed to the absence of population mean differences in survival, despite marked differentiation in seedling traitspt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationCosta e Silva J, Jordan R, Potts BM, Pinkard E and Prober SM (2021) Directional Selection on Tree Seedling Traits Driven by Experimental Drought Differs Between Mesic and Dry Populations. Front. Ecol. Evol. 9:722964pt_PT
dc.identifier.doi10.3389/fevo.2021.722964pt_PT
dc.identifier.urihttp://hdl.handle.net/10400.5/23230
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherFrontierspt_PT
dc.relationForest Research Centre
dc.relationForest Research Centre
dc.relationNot Available
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectadaptation to droughtpt_PT
dc.subjecttrade-offpt_PT
dc.subjectleaf length and shapept_PT
dc.subjectvegetative juvenilitypt_PT
dc.subjectlignotuber sizept_PT
dc.subjectselection gradientpt_PT
dc.subjectgeneralized linear mixed modelpt_PT
dc.subjectEucalyptus pauciflorapt_PT
dc.titleDirectional Selection on Tree Seedling Traits Driven by Experimental Drought Differs Between Mesic and Dry Populationspt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardNumberUID/AGR/00239/2019
oaire.awardNumberUIDB/00239/2020
oaire.awardNumberDL 57/2016/CP1382/CT0008
oaire.awardTitleForest Research Centre
oaire.awardTitleForest Research Centre
oaire.awardTitleNot Available
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UID%2FAGR%2F00239%2F2019/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F00239%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/DL 57%2F2016/DL 57%2F2016%2FCP1382%2FCT0008/PT
oaire.citation.titleFrontiers in Ecology and Evolutionpt_PT
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStreamDL 57/2016
person.familyNameCosta e Silva
person.givenNameJoao
person.identifier.orcid0000-0003-1422-9554
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublicationdcb77f20-e3c3-4dcf-a7d9-5b8419fb6af7
relation.isAuthorOfPublication.latestForDiscoverydcb77f20-e3c3-4dcf-a7d9-5b8419fb6af7
relation.isProjectOfPublication6a9ac754-44c8-4fda-854c-879148c1ac4e
relation.isProjectOfPublication56bd0ae9-f8da-4344-b9a2-f633d4f68b89
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