Breeding potatoes with dihaploids1

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Abstract
Tissue culture methods, particularly anther culture and protoplast fusion, can be useful tools to overcome some problems in the conventional combination breeding of potatoes. The use of dihaploids facilitates the analysis of segregation patterns of interesting characters, androgenetic derived plants may supply homozygosity and somatic hybridization may result in a predictable combination of selected genotypes. This article reviews current knowledge and results on the incorporation of these techniques into the breeding programme of the Max‐Planck‐Institute for Breeding Research in Köln (FRG), with special reference to resistance including that to Globodera pallida and G. rostochiensis.