Divergent Evolution of Symbiotic Bacteria: Rhizobia of the Relic Legume Vavilovia formosa Form an Isolated Group within Rhizobium leguminosarum bv. viciae


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Аннотация

Comparative sequence analysis of symbiotic genes (nodA, nodC, nodD, nifH), which are elements of accessory component of the rhizobial genome, demonstrated that the strains of Rhizobium leguminosarum bv. viciae, isolated from the nodules of a relic legume, Vavilovia formosa, the closest relative of hypothetical common ancestor of the tribe Fabeae, represented a group separated from the strains of R. leguminosarum bv. viciae, isolated from other representatives of this tribe (Vicia, Lathyrus, Pisum, Lens). No isolation was observed relative to the genes representing the core component of the rhizobial genome (16S rDNA, ITS, glnII) or relative to host specificity of the rhizobia. The data obtained suggest that sequence divergence of symbiotic genes marks the initial stage of sympatric speciation, which can be classified as the isolation of the relic “vaviloviae” symbiotype, a possible evolutionary precursor of the “viciae” biotype.

Авторлар туралы

A. Kimeklis

All-Russian Research Institute of Agricultural Microbiology

Хат алмасуға жауапты Автор.
Email: arriam2008@ya.ru
Ресей, St. Petersburg, 196608

I. Kuznetsova

All-Russian Research Institute of Agricultural Microbiology

Email: arriam2008@ya.ru
Ресей, St. Petersburg, 196608

A. Sazanova

All-Russian Research Institute of Agricultural Microbiology

Email: arriam2008@ya.ru
Ресей, St. Petersburg, 196608

V. Safronova

All-Russian Research Institute of Agricultural Microbiology

Email: arriam2008@ya.ru
Ресей, St. Petersburg, 196608

A. Belimov

All-Russian Research Institute of Agricultural Microbiology

Email: arriam2008@ya.ru
Ресей, St. Petersburg, 196608

O. Onishchuk

All-Russian Research Institute of Agricultural Microbiology

Email: arriam2008@ya.ru
Ресей, St. Petersburg, 196608

O. Kurchak

All-Russian Research Institute of Agricultural Microbiology

Email: arriam2008@ya.ru
Ресей, St. Petersburg, 196608

T. Aksenova

All-Russian Research Institute of Agricultural Microbiology

Email: arriam2008@ya.ru
Ресей, St. Petersburg, 196608

A. Pinaev

All-Russian Research Institute of Agricultural Microbiology

Email: arriam2008@ya.ru
Ресей, St. Petersburg, 196608

A. Musaev

Mountain Botanical Garden, Dagestan Scientific Center

Email: arriam2008@ya.ru
Ресей, Makhachkala, Republic of Dagestan, 367000

E. Andronov

All-Russian Research Institute of Agricultural Microbiology; Dokuchaev Soil Science Institute; Department of Genetics and Biotechnology

Email: arriam2008@ya.ru
Ресей, St. Petersburg, 196608; Moscow, 119017; St. Petersburg, 199034

N. Provorov

All-Russian Research Institute of Agricultural Microbiology

Email: arriam2008@ya.ru
Ресей, St. Petersburg, 196608

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