Genomic and chemical evidence for local adaptation in resistance to different herbivores in Datura stramonium

dc.contributor.affiliationNational Autonomous University of Mexico - De-la-Cruz, Ivan M.
dc.contributor.affiliationUniversity of Helsinki - Merila, Juha
dc.contributor.affiliationDepartment of Biology, Universidad Autónoma Metropolitana Campus Iztapalapa, Iztapalapa, Mexico City, Mexico* - Valverde, Pedro Luis
dc.contributor.affiliationFacultad de Estudios Superiores Iztacala, Universidad Nacional Autónoma de México, Los Reyes Iztacala, State of Mexico, Mexico* - Flores-Ortiz, Cesar Mateo
dc.contributor.affiliationLaboratory of Ecological Genetics and Evolution, Department of Evolutionary Ecology, Institute of Ecology, Universidad Nacional Autónoma de México, Mexico City, Mexico* - Núñez-Farfán, Juan
dc.contributor.authorDe-la-Cruz, Ivan M.
dc.contributor.authorMerila, Juha
dc.contributor.authorValverde, Pedro Luis
dc.contributor.authorFlores-Ortiz, Cesar Mateo
dc.contributor.authorNúñez-Farfán, Juan
dc.date.accessioned2025-03-24T15:23:16Z
dc.date.issued2022-04-27
dc.date.issued2022-04-27
dc.descriptionSince most species are collections of genetically variable populations distributed to habitats differing in their abiotic/biotic environmental factors and community composition, the pattern and strength of natural selection imposed by species on each others' traits are also expected to be highly spatially variable. Here, we used genomic and quantitative genetic approaches to understand how spatially variable selection operates on the genetic basis of plant defenses to herbivores. To this end, an F2 progeny was generated by crossing Datura stramonium (Solanaceae) parents from two populations differing in their level of chemical defense. This F2 progeny was reciprocally transplanted into the parental plants' habitats and by measuring the Identity by Descent (IBD) relationship of each F2 plant to each parent, we were able to elucidate how spatially variable selection imposed by herbivores operated on the genetic background (IBD) of resistance to herbivory, promoting local adaptation. The results highlight that plants possessing the highest total alkaloid concentrations (sum of all alkaloid classes) were not the most well-defended or fit. Instead, specific alkaloids and their linked loci/alleles were favored by selection imposed by different herbivores. This has led to population differentiation in plant defenses and thus, to local adaptation driven by plant-herbivore interactions.
dc.identifierhttps://doi.org/10.5061/dryad.bnzs7h489
dc.identifier.urihttps://hydatakatalogi-test-24.it.helsinki.fi/handle/123456789/11069
dc.rightsOpen
dc.rights.licensecc-zero
dc.subjectIdentity by Descent
dc.subjectphenotypic selection
dc.subjectDatura stramonium
dc.titleGenomic and chemical evidence for local adaptation in resistance to different herbivores in Datura stramonium
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