Phytophthora infestans remains a problem to production agriculture. Historically there have
been many controversies concerning its biology and pathogenicity, some of which remain …

A thorough understanding of quantitative disease resistance (QDR) would contribute to the
design and deployment of durably resistant crop cultivars. However, the molecular …

Potato is produced on all continents except Antarctica and is the world's third most important
food crop. Potato production has increased dramatically in developing countries in the past …

Plant Disease/January 2012 5 potato growing areas outside Mexico, suggesting that sexual
reproduction did not play a significant role in the disease cycle. Researchers have observed …

Late blight caused by the oomycete Phytophthora infestans is the most destructive disease
in potato cultivation worldwide. New, more virulent P. infestans strains have evolved which …

▪ Abstract Nineteen single dominant genes (R genes) for resistance to viruses, nematodes,
and fungi have been positioned on the molecular map of potato using DNA markers …

Quantitative disease resistance (QDR) has been observed within many crop plants but is not
as well understood as qualitative (monogenic) disease resistance and has not been used as …

Genetic diversity of crop plants resulting from breeding and selection is preserved in gene
banks. Utilization of such materials for further crop improvement depends on knowledge of …

Late blight (LB), caused by the oomycete Phytophthora infestans, and early blight (EB),
caused by the fungi Alternaria solani and A. tomatophila, are two common and destructive …

Association or linkage disequilibrium (LD)-based mapping strategies are receiving
increased attention for the identification of quantitative trait loci (QTL) in plants as an …