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Phylogenetic relationships and the occurrence of interspecific recombination between beet chlorosis virus (BChV) and Beet mild yellowing virus (BMYV)


Samples containing two viruses belonging to the genus Polerovirus, beet chlorosis virus (BChV) and beet mild yellowing virus (BMYV), were collected from French and Polish sugar beet fields. The molecular properties of 24 isolates of BChV and BMYV were investigated, and their genetic diversity was examined in the coat protein (CP)- and P0-encoding genes. For the first time, we have demonstrated that beet polerovirus populations include recombinants between BChV and BMYV containing breakpoints within the CP gene. Moreover, a partial correlation between geographic origin and phylogenetic clustering was observed for BMYV isolates.

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The authors are very thankful to Mrs. Emmanuelle Vigne (INRA, Colmar) for helpful discussions, to M. Malek Alioua (IBMP, Strasbourg) for sequence analysis, and M. Stéphane Bâton (Staphyt, France) for collecting some French BMYV and BChV isolates. We would also like to thank Prof. Santiago F. Elena (IBMCP, Valencia) for valuable advice on phylogenetic analysis. This work is part of a Ph.D thesis jointly supervised by Warsaw University of Life Sciences, Poland, and Université de Strasbourg, France, that was made possible by to a scholarship from the French Government.

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Correspondence to Anna Kozlowska-Makulska.

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Kozlowska-Makulska, A., Hasiow-Jaroszewska, B., Szyndel, M.S. et al. Phylogenetic relationships and the occurrence of interspecific recombination between beet chlorosis virus (BChV) and Beet mild yellowing virus (BMYV). Arch Virol 160, 429–433 (2015).

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