THE EFFECT OF HOST PLANT REPLACEMENT ON THE GENETIC STRUCTURE OF THE KRASNODAR GREENBUG   SCHIZAPHIS GRAMINUM   RONDANI (HOMOPTERA, APHIDIDAE) POPULATION

E. E. Radchenko; T. L. Kuznetsova

doi:10.30901/2227-8834-2018-1-103-113

THE EFFECT OF HOST PLANT REPLACEMENT ON THE GENETIC STRUCTURE OF THE KRASNODAR GREENBUG SCHIZAPHIS GRAMINUM RONDANI (HOMOPTERA, APHIDIDAE) POPULATION

E. E. Radchenko, T. L. Kuznetsova

https://doi.org/10.30901/2227-8834-2018-1-103-113

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Abstract

Characteristics of the new malting spring barley cultivar ‘Omsky 100’ are presented. This cultivar, bred at the Siberian Research As a result of studying the Krasnodar Schizaphis graminum population, a high level of the insect’s overall and seasonal variability in its virulence to sorghum resistance genes was detected. The greenbug population feeding on sorghum was shown to be labile in virulence to barley accessions as well. The selection of S. graminum genotypes specifically adapted to host plant species was observed. During the reproduction of the insect on barley plants, the individuals without “redundant” genes of virulence to sorghum had an advantage in competition. Replacement of the host led to rapid accumulation of clones virulent to the sorghum resistance genes Sgr1 - Sgr4 and Sgr12.

Keywords

Schizaphis graminum Rondani, сорго, ячмень, гены устойчивости, вирулентность, структура популяций, Schizaphis graminum Rondani, sorghum, barley, resistance genes, virulence, structure of populations

About the Authors

E. E. Radchenko

Federal Research Center the N.I.Vavilov All-Russian Institute of Plant Genetic Resources (VIR)
Russian Federation

T. L. Kuznetsova

Federal Research Center the N.I.Vavilov All-Russian Institute of Plant Genetic Resources (VIR)
Russian Federation

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Review

For citations:

Radchenko E.E., Kuznetsova T.L. THE EFFECT OF HOST PLANT REPLACEMENT ON THE GENETIC STRUCTURE OF THE KRASNODAR GREENBUG SCHIZAPHIS GRAMINUM RONDANI (HOMOPTERA, APHIDIDAE) POPULATION. Proceedings on applied botany, genetics and breeding. 2018;179(1):103-113. (In Russ.) https://doi.org/10.30901/2227-8834-2018-1-103-113

This work is licensed under a Creative Commons Attribution 4.0 License.

ISSN 2227-8834 (Print)
ISSN 2619-0982 (Online)

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Proceedings on applied botany, genetics and breeding