Mi-1 gene expression in tomato plants under root-knot nematode invasion and treatment with salicylic acid


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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.

作者简介

E. Matveeva

Institute of Biology, Karelian Research Center

Email: zinovievas@mail.ru
俄罗斯联邦, st. Pushkinskaya 11, Petrozavodsk, Republic of Karelia, 185910

F. Khasanov

Severtsov Institute of Ecology and Evolution; Institute of Gene Biology

Email: zinovievas@mail.ru
俄罗斯联邦, Leninskii pr. 33, Moscow, 119071; st. Vavilova 34/5, Moscow, 119334

S. Zinovieva

Severtsov Institute of Ecology and Evolution

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Email: zinovievas@mail.ru
俄罗斯联邦, Leninskii pr. 33, Moscow, 119071

V. Lavrova

Institute of Biology, Karelian Research Center

Email: zinovievas@mail.ru
俄罗斯联邦, st. Pushkinskaya 11, Petrozavodsk, Republic of Karelia, 185910

Zh. Udalova

Severtsov Institute of Ecology and Evolution

Email: zinovievas@mail.ru
俄罗斯联邦, Leninskii pr. 33, Moscow, 119071

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