Abstract
Development of cultivars with acceptable chip color is a major but challenging objective of breeding programs world-wide. Currently clones with suitable chip color are identified by including breeding populations in several storage environments over multiple crop seasons. Chip color involves several factors associated with the accumulation of reducing sugars including temperature. The availability of molecular markers associated with the genes controlling chip color would greatly reduce the time required to identify clones with this trait in breeding populations and advance our understanding of this critical carbohydrate characteristic. Polymorphisms in a sucrose synthase allele provided an excellent marker associated with chip color that could assist in selecting for genotypes with acceptable Agtron scores.
Resumen
El desarrollo de cultivares con color aceptable de hojuelas es el objetivo principal y un desafío en los programas de mejoramiento a nivel mundial. Generalmente los clones con color conveniente de hojuelas se identifican mediante la inclusión de poblaciones de mejoramiento en varios ambientes de almacenamiento sobre múltiples campañas de cultivo. El color de las hojuelas involucra diferentes factores asociados con la acumulación de azúcares reductores, incluyendo la temperatura. La disponibilidad de marcadores moleculares asociados con los genes que controlan el color de las hojuelas reduciría enormemente el tiempo el tiempo requerido para identificar los clones con esta característica en las poblaciones de mejoramiento. Los polimorfismos en el alelo de sacarosa sintasa proporcionan un excelente marcador asociado con el color de las hojuelas que podría ayudar en la selección de genotipos con aceptables puntajes Agtron.
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Acknowledgements
This research was supported in part through funds received by the Stuart Cairns Memorial Fund of the Canadian Snack Food Association, the Alberta Agricultural Research Institute and the Matching Investment Initiative of Agriculture and Agri-Food Canada.
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Kawchuk, L.M., Lynch, D.R., Yada, R.Y. et al. Marker Assisted Selection of Potato Clones that Process with Light Chip Color. Am. J. Pot Res 85, 227–231 (2008). https://doi.org/10.1007/s12230-008-9023-5
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DOI: https://doi.org/10.1007/s12230-008-9023-5