Genetic diversity and structure of native maize races from Northwestern Mexico

Authors

  • Isrrael Vega-Alvarez Colegio de Postgraduados, Campus Montecillo, Carretera México-Texcoco, Km 36.5, C. P. 56230 Texcoco, Estado de México, México.
  • Amalio Santacruz-Varela Universidad Autónoma de Tamaulipas, Instituto de Ecología Aplicada, División del Golfo 356, C.P. 87019 Ciudad Victoria, Tamaulipas, México
  • Mario Rocandio-Rodríguez Universidad Autónoma de Tamaulipas, Instituto de Ecología Aplicada, División del Golfo 356, C.P. 87019 Ciudad Victoria, Tamaulipas, México
  • Leobigildo Córdova-Téllez Colegio de Postgraduados, Campus Montecillo, Carretera México-Texcoco, Km 36.5, C. P. 56230 Texcoco, Estado de México, México.
  • Higinio López-Sánchez Colegio de Postgraduados, Campus Puebla, Carretera México-Puebla, Km 125.5, C.P. 72760 Santiago Momoxpan, Puebla, México
  • Abel Muñoz-Orozco Colegio de Postgraduados, Campus Montecillo, Carretera México-Texcoco, Km 36.5, C. P. 56230 Texcoco, Estado de México, México
  • Aurelio Hernández-Bautista Colegio de Postgraduados, Campus Montecillo, Carretera México-Texcoco, Km 36.5, C. P. 56230 Texcoco, Estado de México, México

DOI:

https://doi.org/10.1590/S1678-3921.pab2017.v52.25083

Keywords:

Zea mays, conservation strategies, landraces, microsatellites, plant breeding

Abstract

The objective of this work was to evaluate the genetic diversity of nine maize races (Zea mays ssp. mays) from Northwestern Mexico and one population of teosinte of the Balsas race (Zea mays ssp. parviglumis). A total of 649 alleles were identified, with an average of 20.9 alleles per locus using 31 microsatellite loci; 84.3% of them were polymorphic loci with a 0.49 expected heterozygosity. Graphic representation of principal coordinate analysis (PCoA) showed broad variation and population distribution. The highest probabilistic value obtained with the ΔK criterion confirmed the existence of five population groups clustered by the Bayesian model. This grouping coincided with the population distribution observed in the PCoA graph. Maize races examined retain broad genetic diversity among and within the evaluated populations.

Author Biography

Isrrael Vega-Alvarez, Colegio de Postgraduados, Campus Montecillo, Carretera México-Texcoco, Km 36.5, C. P. 56230 Texcoco, Estado de México, México.

Instituto de Ecologia Aplicada Profesor-Investigador

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Published

2017-12-18

How to Cite

Vega-Alvarez, I., Santacruz-Varela, A., Rocandio-Rodríguez, M., Córdova-Téllez, L., López-Sánchez, H., Muñoz-Orozco, A., & Hernández-Bautista, A. (2017). Genetic diversity and structure of native maize races from Northwestern Mexico. Pesquisa Agropecuaria Brasileira, 52(11), 1023–1032. https://doi.org/10.1590/S1678-3921.pab2017.v52.25083

Issue

v.52, n.11, nov. 2017

Section

GENETICS