Assessment of the variability of Elymus caninus (Poaceae) and closely related taxa from Russia and Kazakhstan using ISSR markers

Elena Shabanova (Kobozeva),Baorong Lu,Alexander Agafonov,Maria Emtseva,E.V Banaev,M.A Tomoshevich,Y.G Zaytseva

doi:10.1051/bioconf/20202400076

Abstract

A comparative study of taxa that are morphologically close to Elymus caninus, occurring in the territory of Russia and Kazakhstan, was carried out based on the ISSR molecular fingerprints. Data showed that the studied taxa are groups of individuals phylogenetically closely related to E. caninus. The assumption is confirmed that E. viridiglumis, as an Elymus species, has a polyphyletic origin as a part of microevolutionary processes in populations E. caninus s. l., possibly involving E. mutabilis. For the Caucasian endemic E. prokudinii and Kazakhstan endemic E. goloskokovii, the origin as result of introgression or spontaneous mutagenesis, i.e. a manifestation of the natural intraspecific polymorphism of E. caninus, is also assumed.

Highlights

In our opinion, confirmed species of the genus Elymus L., growing on Russian area [1], can be divided into several groups
Two of them are most important in terms of systematics and taxonomy: 1. Species with normal seed reproduction, having confirmed distribution area and abundance. This group should include close in origin, but independent species E. caninus (L.) L., E. mutabilis (Drob.) Tzvel. and E. fibrosus (Schrenk) Tzvel
Elymus viridiglumis and Е. prokudinii are morphologically similar, and we consider that they are derived from E. caninus, and possibly with participation of E. mutabilis

Summary

Introduction

In our opinion, confirmed species of the genus Elymus L., growing on Russian area [1], can be divided into several groups. Species with normal seed reproduction, having confirmed distribution area and abundance. This group should include close in origin, but independent species E. caninus (L.) L., E. mutabilis (Drob.) Tzvel. Prokudinii are morphologically similar, and we consider that they are derived from E. caninus, and possibly with participation of E. mutabilis. Another species with probable relationship and even origination from E. caninus may be E. goloskokovii Kotuch., described from the North Kazakhstan, West Altai [6]. The origination of this species from Е. This report presents data on polymorphism and specificity of intermicrosatellite DNA sequences (ISSR-markers) to evaluate relationships between different Elymus morphotypes from locations within Russian Federation and adjacent Kazakhstan areas

Materials and Methods

Results and Discussions

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