Genetic Diversity and Population Structure of Jubaea chilensis, an Endemic and Monotype Gender from Chile, Based on SNP Markers

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dc.contributor.authorJara Arancio, Paola
dc.contributor.authorda Silva Carvalho, Carolina
dc.contributor.authorCarmona Ortiz, Martín R.
dc.contributor.authorBustamante, Ramiro O.
dc.contributor.authorSchmidt Villela, Priscilla M.
dc.contributor.authorda Silva Andrade, Sónia C.
dc.contributor.authorPeña Gómez, Francisco T.
dc.contributor.authorGonzález, Luís A.
dc.contributor.authorFleury, Marina
dc.date.accessioned2023-10-30T18:07:37Z
dc.date.available2023-10-30T18:07:37Z
dc.date.issued2022-08
dc.descriptionIndexación: Scopus.es
dc.description.abstractJubaea chilensis (Molina) Baill., also named Chilean palm, is an endemic species found in the coastal area of Mediterranean sclerophyllous forest in Chile. It has a highly restricted and fragmented distribution along the coast, being under intense exploitation and anthropogenic impact. Based on 1038 SNP markers, we evaluated the genetic diversity and population structure among six J. chilensis natural groups encompassing 96% of the species distribution. We observed low levels of genetic diversity, a deficit of heterozygotes (mean HE = 0.024; HO = 0.014), and high levels of inbreeding (mean FIS = 0.424). The fixation index (FST) and Nei’s genetic distance pairwise comparisons indicated low to moderate structuring among populations. There was no evidence of isolation by distance (r = −0.214, p = 0.799). In the cluster analysis, we observed a closer relationship among Culimo, Cocalán, and Candelaria populations. Migration rates among populations were low, except for some populations with moderate values. The K value that best represented the spatial distribution of genetic diversity was ∆K = 3. Habitat fragmentation, deterioration of the sclerophyllous forest, lack of long-distance dispersers, and a natural regeneration deficit may have driven inbreeding and low levels of genetic diversity in the palm groves of J. chilensis. Although extant populations are not at imminent risk of extinction, the rate of inbreeding could increase and migration could decrease if the effects of climate change and human impact become more acute. © 2022 by the authors.es
dc.description.urihttps://www.mdpi.com/2223-7747/11/15/1959
dc.identifier.citationPlants, Volume 11, Issue 15, August 2022, Article number 1959es
dc.identifier.doi10.3390/plants11151959
dc.identifier.issn2223-7747
dc.identifier.urihttps://repositorio.unab.cl/xmlui/handle/ria/53718
dc.language.isoenes
dc.publisherMDPIes
dc.rights.licenseCC BY 4.0 DEED Attribution 4.0 International
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/deed.en
dc.subjectGenetic diversityes
dc.subjectJubaea chilensises
dc.subjectNeotropical palmes
dc.subjectPopulation structurees
dc.subjectSNPes
dc.titleGenetic Diversity and Population Structure of Jubaea chilensis, an Endemic and Monotype Gender from Chile, Based on SNP Markerses
dc.typeArtículoes
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