Linkage Mapping in Potato Cyst Nematodes
A Mendelian proof for a gene-for-gene relationship between virulence in Globodera rostochiensis and the H1 resistance gene from Solanum tuberosum spp. andigena CPC 1673 was obtained by Janssen et al., (1991). It was shown that virulence to the H1 gene is recessively inherited at a single locus. As expected from the epigenetic nature of sex determination, this locus is not sex-linked. The resistance conferred by the H1 gene is only effective against avirulent juveniles developing into females. It was shown that avirulent juveniles are still able to develop into males on the resistant cultivar (Janssen et al., 1992).
KeywordsLinkage Group Segregation Pattern Avirulence Gene Potato Cyst Nematode Progeny Line
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