New potyviruses infecting the soybean in the Russian Far East

Kakareka N.N., Volkov Yu.G., Tolkach V.F.

В издании Proceedings of the International Conference “Scientific research of the SCO countries: synergy and integration”

Год: 2024 Страницы: 76-83

Abstract. It is established that three new diseases are revealed of soybean in the nursery collection of Russian Institute of Soya are caused by viruses with flexible filamentous particles. Electrophoresis in PAG carried out with purified preparation of one virus revealed the presence of 3 polypeptides with MW 32.3 kD, 31.2 kD, and 28.1 kD. In other virus preparation the presence of 1 main polypeptide with MW 34.1 kD and 3 minor ones with MW 17.1, 14.4, and 11.6 kD was established. The viruses under study are related with potyviruses. One virus demonstrated the closest affinity with bean yellow mosaic virus (BYMV) though they differed in potato virus Y (PVY) and less affinity with soybean mosaic virus (SMV) and BYMV. Third virus was tested in PVY and SMV systems and the greatest its affinity was revealed with PVY. However, the biological and physicochemical characteristics of the latter two viruses under study differ from SMV and PVY. The properties of coat proteins and biological characteristics of all the viruses studied differ from potyviruses described in the soybean on Russian Far East including bean yellow mosaic virus, soybean mosaic virus and bean common mosaic virus.

DOI 10.34660/INF.2024.31.32.376