Transcriptional differentiation of UV-B protectant genes in maize landraces spanning an elevational gradient in Chiapas, Mexico
Periodo de realización: 1900/01/01 al 2020/01/01
Tipo: Artículo científico
Lugar(es) de estudio: Chiapas, Mexico
Resumen: "Globally, farmers cultivate and maintain crop landraces (i.e., traditional varieties).
Landraces contain unique diversity shaped in part by natural and human-mediated
selection and are an indispensable resource for farmers. Since environmental conditions
change with elevation, crop landraces grown along elevational gradients have
provided ideal locations to explore patterns of local adaptation. To further probe
traits underlying this differentiation, transcriptome signatures can help provide a
foundation for understanding the ways in which functional genetic diversity may
be shaped by environment. In this study, we returned to an elevational gradient in
Chiapas, Mexico, to assess transcriptional differentiation of genes underlying UV-B
protection in locally adapted maize landraces from multiple elevations. We collected
and planted landraces from three elevational zones (lowland, approximately 600 m"