Southern corn rust(SCR),caused by the fungal pathogen Puccinia polysora,is a major threat to maize pro-duction *** breeding and deployment of resistant hybrids are key to achieving durable control of ***,we report the...
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Southern corn rust(SCR),caused by the fungal pathogen Puccinia polysora,is a major threat to maize pro-duction *** breeding and deployment of resistant hybrids are key to achieving durable control of ***,we report the molecular cloning and characterization of RppC,which encodes an NLR-type immune receptor and is responsible for a major SCR resistance quantitative trait ***-more,we identified the corresponding avirulence effector,avrrppC,which is secreted by *** and triggers RppC-mediated *** variation of avrrppC directly determines the effectiveness of RppC-mediated resistance,indicating that monitoring of avrrppC variants in the field can guide the rational deployment of RppC-containing hybrids in maize ***,RppC is the most frequently deployed SCR resistance gene in China,and a better understanding of its mode of action is crit-ical for extending its durability.
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