Auxin drives tomato spotted wilt virus (TSWV) resistance through epigenetic regulation of auxin response factor ARF8 expression in tomato

نویسندگان

چکیده

Tomato spotted wilt virus (TSWV) causes severe losses of tomato crops worldwide. To cope dynamically with such a threat, plants deploy strategies acting at the molecular and epigenetic levels. We found that symptoms progress in specific-genotype-manner upon TSWV infection. Susceptible genotypes showed within Auxin Response Factor (ARF8) promoter coupled to enhanced expression miRNA167a, reduced ARF8 gene decreased levels hormone auxin. This constitutes deliberate attempt disrupt plant growth promote spread sensitive cultivars. Epigenetic regulation through level cytosine methylation miR167a-ARF8 module are part complex network modulating auxin-triggered synthesis shaping responses TSWV. Furthermore, modulation regulatory could be applied tomato-resistance breeding programs.

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ژورنال

عنوان ژورنال: Gene

سال: 2021

ISSN: ['1879-0038', '0378-1119']

DOI: https://doi.org/10.1016/j.gene.2021.145905