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Genetic structure of Lima bean (Phaseolus lunatus L.) landraces grown in the Mayan area
Luciana Camacho Pérez
Jaime Martínez Castillo
Javier Orlando Mijangos Cortés
MIRIAM MONSERRAT FERRER ORTEGA
Jean_Pierre BAUDOIN
RUBEN HUMBERTO ANDUEZA NOH
Acceso Abierto
Atribución-NoComercial-SinDerivadas
10.1007/s10722-017-0525-1
INSITU CONSERVATION
LIMA BEAN
MAYAN LOWLANDS
PHASEOLUS LUNATUS
Lima bean (Phaseolus lunatus L.) is an important crop in the Mayan culture. The Mayan area, considered as a main center of Mesoamerican diversity, has been divided into two subareas: the Mayan lowlands and the Mayan highlands. TheYucatan Peninsula is part of the Mayan lowlands and holds the highest number of Lima bean landraces of Mexico, but Lima beans are in high risk of genetic erosion due to intensification of the traditionalMayan agriculture.However, information on genetic diversity of Lima beans of the Mayan highlands is lacking. By using 46 landraces collected in theMayan area (23 from each subarea) and 73 ISSR loci (intersimple sequence repeats), we analyzed the structure, diversity and genetic relationships of Lima beans of this part of Mesoamerica. High levels of diversity (HBAY = 0.45) and genetic structure (FST = 0.66) were found for the whole Mayan area. Genetic diversity in the Mayan lowlands was apparently higher than the Mayan highlands (HBAY = 0.44 and 0.36, respectively); but differences were not statistically significant. Genetic structure between the subareas was high (AMOVA = 30% of total variation), most landraces grouping according to their geographic origin. This study shows the importance of the Mayan culture in the diversification and conservation of Lima beans. The results provide important information that should be considered when implementing strategies to collect Lima bean landraces and planning in situ and ex situ programs to conserve these landraces in the Mayan region.
2018
Artículo
Genetic resources and crop evolution, 65(1), 229-241, 2018.
Inglés
Camacho-Pérez, L., Martínez-Castillo, J., Mijangos-Cortés, J. O., Ferrer-Ortega, M. M., Baudoin, J. P., & Andueza-Noh, R. H. (2018). Genetic structure of Lima bean (Phaseolus lunatus L.) landraces grown in the Mayan area. Genetic resources and crop evolution, 65(1), 229-241.
BIOLOGÍA Y QUÍMICA
Versión publicada
publishedVersion - Versión publicada
Aparece en las colecciones: Artículos de Investigación Arbitrados

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