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Rapid and efficient genome-wide characterization of Xanthomonas TAL effector genes.


ABSTRACT: Xanthomonas TALE transcriptional activators act as virulence or avirulence factors by activating host disease susceptibility or resistance genes. Their specificity is determined by a tandem repeat domain. Some Xanthomonas pathogens contain 10-30 TALEs per strain. Although TALEs play critical roles in pathogenesis, their studies have so far been limited to a few examples, due to their highly repetitive gene structure and extreme similarity among different members, which constrict sequencing and assembling. To facilitate TALE studies, we developed an efficient and rapid pipeline for genome-wide cloning of tal genes as many as possible from a strain. Here, we report the pipeline and its use to identify all 18 tal genes from a newly isolated strain of the rice pathogen Xathomonas oryzae. Target prediction revealed a number of potential rice targets including several notable genes such as genes encoding SWEET, WRKY, Hen1, and BAK1 proteins, which provide candidates for further experimental functional analysis of the TALEs.

SUBMITTER: Yu YH 

PROVIDER: S-EPMC4536657 | biostudies-literature | 2015 Aug

REPOSITORIES: biostudies-literature

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Rapid and efficient genome-wide characterization of Xanthomonas TAL effector genes.

Yu Yan-Hua YH   Lu Ye Y   He Yong-Qiang YQ   Huang Sheng S   Tang Ji-Liang JL  

Scientific reports 20150814


Xanthomonas TALE transcriptional activators act as virulence or avirulence factors by activating host disease susceptibility or resistance genes. Their specificity is determined by a tandem repeat domain. Some Xanthomonas pathogens contain 10-30 TALEs per strain. Although TALEs play critical roles in pathogenesis, their studies have so far been limited to a few examples, due to their highly repetitive gene structure and extreme similarity among different members, which constrict sequencing and a  ...[more]

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