Towards map-based cloning of partial resistance QTLs of barley to Puccinia hordei

There are evidences that suggest resistance of barley to non-adapted rust fungi (nonhost resistance) and partial resistance to adapted rust fungi share important features and are partly based on the same genes.

Promovendus mr. F (Freddy) Yeo Kuok San
Promotor prof.dr. RGF (Richard) Visser
Copromotor RE (Rients) Niks
Organisatie Wageningen University

do 18 september 2014 11:00 tot 12:30

Locatie Aula, gebouwnummer 362
Generaal Foulkesweg 1
6703 BG Wageningen

Nonhost resistance is, by definition, a resistance observed in all members of a nonhost plant species to all members of a potential pathogen species. Partial resistance is observed as low levels of infection despite the attacking ability of adapted rust fungi. To understand nonhost and partial resistance, the genes for the resistance need to be identified, isolated and validated for their function in resistance. This thesis reports on the work in progress towards identifying and isolating one gene for nonhost resistance and five genes for partial resistance. A new experimental line, Golden SusPtrit was developed by crossing barley variety Golden Promise with an experimental line SusPtrit. Golden SusPtrit is a valuable line to study the association between nonhost and partial resistance.