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Promoter mutations of an essential gene for pollen development result in disease resistance in rice.

ABSTRACT: Disease resistance and sexual reproductive development are generally considered as separate biological processes, regulated by different sets of genes. Here we show that xa13, a recessive allele conferring disease resistance against bacterial blight, one of the most devastating rice diseases worldwide, plays a key role in both disease resistance and pollen development. The dominant allele, Xa13, is required for both bacterial growth and pollen development. Promoter mutations in Xa13 cause down-regulation of expression during host-pathogen interaction, resulting in the fully recessive xa13 that confers race-specific resistance. The recessive xa13 allele represents a new type of plant disease resistance.

SUBMITTER: Chu Z

PROVIDER: S-EPMC1472899 | biostudies-literature | 2006 May

REPOSITORIES: biostudies-literature

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Promoter mutations of an essential gene for pollen development result in disease resistance in rice.

Chu Zhaohui Z Yuan Meng M Yao Jialing J Ge Xiaojia X Yuan Bin B Xu Caiguo C Li Xianghua X Fu Binying B Li Zhikang Z Bennetzen Jeffrey L JL Zhang Qifa Q Wang Shiping S

Genes & development 20060428 10

Disease resistance and sexual reproductive development are generally considered as separate biological processes, regulated by different sets of genes. Here we show that xa13, a recessive allele conferring disease resistance against bacterial blight, one of the most devastating rice diseases worldwide, plays a key role in both disease resistance and pollen development. The dominant allele, Xa13, is required for both bacterial growth and pollen development. Promoter mutations in Xa13 cause down-r ...[more]

PMID: 16648463

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