info:eu-repo/semantics/article
Distribution, genetic diversity and potential spatiotemporal scale of alien gene flow in crop wild relatives of rice (Oryza spp.) in Colombia
Distribution, genetic diversity and potential spatiotemporal scale of alien gene flow in crop wild relatives of rice (Oryza spp.) in Colombia
Registro en:
1939-8433
10.1186/s12284-017-0150-9
Autor
Thomas, Evert
Tovar, Eduardo
Villafañe, Carolina
Bocanegra, José Leonardo
Moreno, Rodrigo
Resumen
Crop wild relatives (CWRs) of rice hold important traits that can contribute to enhancing the ability of
cultivated rice (Oryza sativa and O. glaberrima) to produce higher yields, cope with the effects of climate change, and resist attacks of pests and diseases, among others. However, the genetic resources of these species remain dramatically understudied, putting at risk their future availability from in situ and ex situ sources. Here we assess the distribution of genetic diversity of the four rice CWRs known to occur in Colombia (O. glumaepatula, O. alta, O. grandiglumis, and O. latifolia). Furthermore, we estimated the degree of overlap between areas with suitable habitat for cultivated and wild rice, both under current and predicted future climate conditions to assess the potential spatiotemporal scale of potential gene flow from GM rice to its CWRs. Los parientes silvestres de cultivo (CWRs) de arroz poseen rasgos importantes que pueden contribuir a mejorar la capacidad del arroz cultivado (Oryza sativa y O. glaberrima) para producir mayores rendimientos, hacer frente a los efectos del cambio climático y resistir los ataques de plagas y enfermedades, entre otros. Sin embargo, los recursos genéticos de estas especies continúan dramáticamente poco estudiados, poniendo en riesgo su disponibilidad futura de fuentes in situ y ex situ. Aquí se evalúa la distribución de la diversidad genética de los cuatro CWR de arroz que se sabe que ocurren en Colombia (O. glumaepatula, O. alta, O. grandiglumis y O. latifolia).