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Background&#xa0; <p><i>Malpighia glabra</i> (Malpighiaceae), a wild fruit tree native to the Yucatan Peninsula, Mexico, is economically important in countries such as Brazil and Japan. Its fruits are one of the richest natural sources of vitamin C and bioactive compounds. The aim of this study was to evaluate the diversity and genetic structure of wild populations of <i>M. glabra</i> collected in different bioclimatic regions of Yucatan, Mexico.</p> Methods and results <p>Genomic DNA was extracted from leaves from 14 individuals in each of 16 populations of <i>M. glabra</i> collected from four bioclimatic regions in Yucatan state, and seven ISSR markers were amplified by PCR to analyze genetic diversity. UPGMA and PCoA results revealed two genetic clusters. The greatest genetic variation was found within populations (52%) and within genetic clusters (62%). Population 1 was the most diverse, and at the bioclimatic region level, diversity was greatest in the intermediate warm subhumid region.</p> Conclusions <p>ISSR markers showed high levels of polymorphic loci and moderate to high genetic diversity. The high level of genetic diversity in the bioclimatic regions and genetic groups of wild <i>M. glabra</i> indicates that these valuable genetic resources should be conserved and deployed in species conservation and enhancement strategies.</p>

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Structure and genetic diversity of wild populations of Malpighia glabra L. from Yucatan, Mexico

  • 期刊论文

  • 发表日期：

    2025年11月1日

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  • Monserrat Concepción Esquivel-Chi,
  • Rubén Humberto Andueza-Noh,
  • Esaú Ruíz-Sánchez,
  • Marcela Gamboa-Angulo,
  • Daniel Potter,
  • Emanuel Hernández-Núñez,
  • René Garruña,
  • Gabriel Rolando Dzib

摘要

Background 

Malpighia glabra (Malpighiaceae), a wild fruit tree native to the Yucatan Peninsula, Mexico, is economically important in countries such as Brazil and Japan. Its fruits are one of the richest natural sources of vitamin C and bioactive compounds. The aim of this study was to evaluate the diversity and genetic structure of wild populations of M. glabra collected in different bioclimatic regions of Yucatan, Mexico.

Methods and results

Genomic DNA was extracted from leaves from 14 individuals in each of 16 populations of M. glabra collected from four bioclimatic regions in Yucatan state, and seven ISSR markers were amplified by PCR to analyze genetic diversity. UPGMA and PCoA results revealed two genetic clusters. The greatest genetic variation was found within populations (52%) and within genetic clusters (62%). Population 1 was the most diverse, and at the bioclimatic region level, diversity was greatest in the intermediate warm subhumid region.

Conclusions

ISSR markers showed high levels of polymorphic loci and moderate to high genetic diversity. The high level of genetic diversity in the bioclimatic regions and genetic groups of wild M. glabra indicates that these valuable genetic resources should be conserved and deployed in species conservation and enhancement strategies.