2024-03-29T05:21:42Zhttp://digital.csic.es/dspace-oai/requestoai:digital.csic.es:10261/1693722021-12-28T16:48:17Zcom_10261_86com_10261_1col_10261_339
DIGITAL.CSIC
author
González-Jara, Pablo
author
Moreno-Letelier, Alejandra
author
Fraile, Aurora
author
Piñero, Daniel
author
García-Arenal, Fernando
funder
Fundación BBVA
orcid
Moreno-Letelier, Alejandra [0000-0001-7524-7639]
orcid
Fraile, Aurora [0000-0002-2785-7931]
orcid
Piñero, Daniel [0000-0002-2509-2445]
orcid
García-Arenal, Fernando [0000-0002-5327-3200]
2018-09-04T09:31:04Z
2018-09-04T09:31:04Z
2011-12-06
PLoS One 6(12):e28715 (2011)
http://hdl.handle.net/10261/169372
10.1371/journal.pone.0028715
1932-6203
http://dx.doi.org/10.13039/100007406
22163053
Management of wild peppers in Mexico has occurred for a long time without clear phenotypic signs of domestication. However, pre-domestication management could have implications for the population's genetic richness. To test this hypothesis we analysed 27 wild (W), let standing (LS) and cultivated (C) populations, plus 7 samples from local markets (LM), with nine polymorphic microsatellite markers. Two hundred and fifty two alleles were identified, averaging 28 per locus. Allele number was higher in W, and 15 and 40% less in LS and C populations, respectively. Genetic variation had a significant population structure. In W populations, structure was associated with ecological and geographic areas according to isolation by distance. When LM and C populations where included in the analysis, differentiation was no longer apparent. Most LM were related to distant populations from Sierra Madre Oriental, which represents their probable origin. Historical demography shows a recent decline in all W populations. Thus, pre-domestication human management is associated with a significant reduction of genetic diversity and with a loss of differentiation suggesting movement among regions by man. Measures to conserve wild and managed populations should be implemented to maintain the source and the architecture of genetic variation in this important crop relative.
eng
openAccess
In-situ conservation
Polaskia-chichipe cactaceae
Multilocus genotype data
Population-structure
Central Mexico
Tehuacan valley
Domesticated populations
Molecular-genetics
Genus capsicum
Diversity
Impact of human management on the genetic variation of wild pepper, Capsicum annuum var. glabriusculum
artículo
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URL
https://digital.csic.es/bitstream/10261/169372/1/journal.pone_2011.pdf
File
MD5
a189aa6e0940eb28c4980dd066485c04
319905
application/pdf
journal.pone_2011.pdf