Abstract
The dynamics of expression of two homologous genes Mi-1.1 and Mi-1.2 in the roots of resistant and susceptible tomato plants in non-invasion conditions and during invasion with the root-knot nematode M. incognita was studied. Nematode invasion was accompanied by a significant increase in the expression level of both genes; however, the accumulation of transcripts at the early stages of nematode invasion in the penetration of nematode juveniles to the roots was observed only in plants that contained the Mi-1.2 gene, which explains the resistance of tomatoes to this root-knot nematode, caused by only this gene. We reveal a change in the Mi-1 gene activity under exogenous salicylic acid treatment, which contributed to the formation of induced resistance to root-knot nematode in the susceptible plants.
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Original Russian Text © V.V. Lavrova, Zh.V. Udalova, E.M. Matveeva, F.K. Khasanov, S.V. Zinovieva, 2016, published in Doklady Akademii Nauk, 2016, Vol. 471, No. 3, pp. 358–361.
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Lavrova, V.V., Udalova, Z.V., Matveeva, E.M. et al. Mi-1 gene expression in tomato plants under root-knot nematode invasion and treatment with salicylic acid. Dokl Biochem Biophys 471, 413–416 (2016). https://doi.org/10.1134/S1607672916060107
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DOI: https://doi.org/10.1134/S1607672916060107