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Nat Commun ; 9(1): 3735, 2018 10 03.
Artigo em Inglês | MEDLINE | ID: mdl-30282993

RESUMO

Yellow rust, caused by Puccinia striiformis f. sp. tritici (Pst), is a devastating fungal disease threatening much of global wheat production. Race-specific resistance (R)-genes are used to control rust diseases, but the rapid emergence of virulent Pst races has prompted the search for a more durable resistance. Here, we report the cloning of Yr15, a broad-spectrum R-gene derived from wild emmer wheat, which encodes a putative kinase-pseudokinase protein, designated as wheat tandem kinase 1, comprising a unique R-gene structure in wheat. The existence of a similar gene architecture in 92 putative proteins across the plant kingdom, including the barley RPG1 and a candidate for Ug8, suggests that they are members of a distinct family of plant proteins, termed here tandem kinase-pseudokinases (TKPs). The presence of kinase-pseudokinase structure in both plant TKPs and the animal Janus kinases sheds light on the molecular evolution of immune responses across these two kingdoms.


Assuntos
Basidiomycota/patogenicidade , Resistência à Doença/genética , Genes de Plantas/fisiologia , Doenças das Plantas/imunologia , Proteínas de Plantas/genética , Triticum/fisiologia , Animais , Mapeamento Cromossômico , Evolução Molecular , Hordeum/genética , Janus Quinases/genética , Mutagênese , Doenças das Plantas/microbiologia , Plantas Geneticamente Modificadas , Domínios Proteicos/genética , Domínios Proteicos/fisiologia , Triticum/microbiologia
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