Título
Evolutionary response of landraces to climate change in centers of crop diversity
Autor
Kristin Mercer
Colaborador
Hugo Perales (Analista)
Carlos Félix Marina Fernández (Analista)
Nivel de Acceso
Acceso Abierto
Materias
Cultivos (Agricultura);Cambios climáticos;Climatología agrícola;Variación genética;Plasticidad fenotípica;Conservación in situ;Impacto ambiental - (TESAURO) Crops (Agriculture);Climatic changes;Crops and climate;Genetic variation;Phenotypic plasticity;In situ conservation;Environmental impact - (TESAURO) CIENCIAS AGROPECUARIAS Y BIOTECNOLOGÍA - (CTI) CIENCIAS AGRARIAS - (CTI) CIENCIAS AGRARIAS - (CTI)
Resumen o descripción
Resumen en inglés: "Landraces cultivated in centers of crop diversity result from past and contemporary patterns of natural and farmer-mediated evolutionary forces. Successful in situ conservation of crop genetic resources depends on continuity of these evolutionary processes. Climate change is projected to affect agricultural production, yet analyses of impacts on in situ conservation of crop genetic diversity and farmers who conserve it have been absent. How will crop landraces respond to alterations in climate? We review the roles that phenotypic plasticity, evolution, and gene flow might play in sustaining production, although we might expect erosion of genetic diversity if landrace populations or entire races lose productivity. For example, highland maize landraces in southern Mexico do not express the plasticity necessary to sustain productivity under climate change, but may evolve in response to altered conditions. The outcome for any given crop in a given region will depend on the distribution of genetic variation that affects fitness and patterns of climate change. Understanding patterns of neutral and adaptive diversity from the population to the landscape scale is essential to clarify how landraces conserved in situ will continue to evolve and how to minimize genetic erosion of this essential natural resource. "
Fecha de publicación
2010
Tipo de publicación
Artículo
Recurso de información
Formato
application/pdf
Fuente
Evolutionary Applications. Vol. 3, no. 5-6 (September 2010), p. 480–493. ISSN: 1752-4571
Idioma
Inglés
Audiencia
Público en general
Repositorio Orígen
Repositorio Institucional de ECOSUR
Descargas
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