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Genetic diversity and similarity revealed via molecular analysis among and within an in situ population and ex situ accessions of chiltepín (Capsicum annuum var. glabriusculum)

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Abstract

Molecular analysis of genetic diversity amongand within phenotypically similar wild Capsicum annuum var. glabriusculum(chile) populations revealed geneticdifferences among accessions spread over abroad geographic range. These chiles areregionally known as chiltepíns and are a 50metric ton per year wild harvest for the spiceindustry, as well as a genetic resource forcrop improvement. Understanding geneticvariability in this species providesinformation related to conservation efforts. The objective of this research was to surveygenetic diversity among and within an insitu population and ex situ accessionsof chiltepíns. Random AmplifiedPolymorphic DNA (RAPD) molecular markers wereused to study the genetic structure of an in situ population found at the nothernmostrange of this species and ex situaccessions collected from Mexico and Guatemala. Novel genetic variation was found in both thein situ northern disjunct population, aswell as some ex situ accessions, thussupporting conservation of this species viaboth in situ and ex situ strategies The evidence presented here supports effortsto conserve outlier populations via insitu management practices.

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Authors and Affiliations

  1. Department of Agronomy and Horticulture, New Mexico State University, Las Cruces, NM, 88003-0003

    Eric J. Votava & Paul W. Bosland

  2. Center for Sustainable Environments, Northern Arizona University, Flagstaff, AZ, 86011-5765

    Gary P. Nabhan

Authors
  1. Eric J. Votava
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  2. Gary P. Nabhan
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  3. Paul W. Bosland
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Correspondence to Paul W. Bosland.

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Votava, E.J., Nabhan, G.P. & Bosland, P.W. Genetic diversity and similarity revealed via molecular analysis among and within an in situ population and ex situ accessions of chiltepín (Capsicum annuum var. glabriusculum). Conservation Genetics 3, 123–129 (2002). https://doi.org/10.1023/A:1015216504565

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  • DOI: https://doi.org/10.1023/A:1015216504565

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