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Collection and characterization of maize and upland rice populations cropped by poor farmers in the uplands of Panama's Azuero region

Published online by Cambridge University Press:  10 September 2008

B. E. Love ,
S. Dreisigacker  and
D. Spaner
B. E. Love
Affiliation:
Department of Agricultural, Food, and Nutritional Sciences, University of Alberta, 4-10 Ag/For Building Edmonton, Alberta, Canada T6G 2P5
S. Dreisigacker
Affiliation:
International Centre for Maize and Wheat Improvement (CIMMYT), Km. 45, Carretera Mex-Veracruz, El Batan, Texcoco, CP 56130, Mexico
D. Spaner*
Affiliation:
Department of Agricultural, Food, and Nutritional Sciences, University of Alberta, 4-10 Ag/For Building Edmonton, Alberta, Canada T6G 2P5
*
*Corresponding author. E-mail: [email protected]
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Abstract

The conservation of crop genetic resources is an international priority and requires the continued collection and characterization of farmer varieties. We collected and characterized maize and upland rice populations cropped by farmers in Panama's Azuero region. The objective of our study was to evaluate the crop genetic diversity of farmer varieties of maize and upland rice grown by poor farmers in Panama. We found that: (1) farmers' naming practices only partially corresponded to genetic relationships and were the strongest for rice populations; (2) farmers' classification of populations as ‘modern’ or ‘traditional’ was reflected in phenotypic differences; (3) Panamanian maize populations were molecularly distinct from populations collected elsewhere in Latin America; and (4) heterogeneous rice populations were common and heterogeneity was often due to admixture of recognized farmer varieties. Our results indicate that poor farmers in Panama continue to farm ‘traditional’ varieties that harbour genetic diversity of interest. There has, however, been substantial adoption of ‘modern’ varieties.

Keywords

classificationgenetic diversitynaming practicesphenotypes
Type
Research Article
Information
Plant Genetic Resources , Volume 7 , Issue 2 , August 2009 , pp. 105 - 112
Copyright
Copyright © NIAB 2008

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