Application of in vitro selection in the genetic improvement of the potato for resistance to early blight
Journal Title: Biotecnología Vegetal - Year 2008, Vol 8, Issue 1
Abstract
Globally efforts have been made in the genetic improvement of potato by conventional methods, however, obtaining genotypes with good commercial quality and stable resistance to early blight has been difficult. Little resistance to early blight in commercial varieties has been the main reason that limits progress in genetic improvement. Sources of resistance to this disease have been identified in wild potato, but there are difficulties in the crossing with commercial varieties which have a high heterozygous polyploidy genome. Biotechnology tools, such as tissue culture, mutagenesis and in vitro selection, contribute to reduce these limitations.Besides, the fact that potato is a species which has been widely investigated by biotechnologists. The use of these techniques would enlarge the knowledge in plant-pathogen interaction in pathosystem potato-Alternaria solani. Also to obtain plants with resistance to early blight in a short period of time. The status of biotechnology application, in relation to the use of Alternaria solani culture filtrate in the selection of potato plants tolerant or resistant to early blight and how can be used as tools to improve this resistance to the disease, is described in this review.
Authors and Affiliations
N. Veitía, Y. Alvarado-Capó, L. R. García, I. Bermúdez-Caraballoso, M. Leiva-Mora
Keywords
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