Publications by authors named "Gerard Morin"
Background: Development of durable plant genetic resistance to pathogens through strategies of QTL pyramiding and diversification requires in depth knowledge of polygenic resistance within the available germplasm. Polygenic partial resistance to Aphanomyces root rot, caused by Aphanomyces euteiches, one of the most damaging pathogens of pea worldwide, was previously dissected in individual mapping populations. However, there are no data available regarding the diversity of the resistance QTL across a broader collection of pea germplasm.
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- Partial resistances in plants, influenced by quantitative trait loci (QTL), are more durable than single-gene resistances, making it essential to understand genetic diversity in breeding programs.
- A study focused on the resistance of pea plants to the pathogen Aphanomyces euteiches identified and analyzed 135 QTL across different environments and scoring methods from two resistant sources, PI 180693 and 552.
- Five genomic regions showed consistent stability in resistance characteristics, highlighting the complexity of resistance inheritance and providing a foundation for developing improved breeding strategies through marker-assisted selection.