Biological and molecular characterization of a resistance-breaking isolate of citrus tristeza virus from Uruguay and its effects on Poncirus trifoliata growth performance

Abstract Resistance-breaking (RB) isolates of citrus tristeza virus (CTV) can replicate and move systemically in Poncirus trifoliata, a rootstock widely used for management of decline caused by CTV and other purposes. In Uruguay, severe CTV isolates are prevalent, and an RB isolate (designated as RB-UY1) was identified. In order to predict the implications of this genotype circulating in citrus crops grafted on trifoliate rootstocks, the aim of this work was to determine the biological and molecular characteristics of this isolate, the efficiency of its transmission by Toxoptera citricida, and its effects on plant growth performance of P. trifoliata. Our results show that RB-UY1 can be classified as a mild isolate, that it is phylogenetically associated with the RB1 group, and that it is efficiently transmitted by T. citrida. They also suggest that the RB-UY1 isolate should not affect the performance of citrus crops grafted on trifoliate rootstocks, although some growth parameters of P. trifoliata seedlings were affected four years after inoculation..

Medienart:

Artikel

Erscheinungsjahr:

2023

Erschienen:

2023

Enthalten in:

Zur Gesamtaufnahme - volume:168

Enthalten in:

Archives of virology - 168(2023), 4 vom: 29. März

Sprache:

Englisch

Beteiligte Personen:

Rubio, Leticia [VerfasserIn]
Arruabarrena, Ana [VerfasserIn]
Salvo, Matías [VerfasserIn]
Castells, Matías [VerfasserIn]
Bertalmío, Ana [VerfasserIn]
Hernández-Rodríguez, Lester [VerfasserIn]
Benítez-Galeano, María J. [VerfasserIn]
Maeso, Diego [VerfasserIn]
Colina, Rodney [VerfasserIn]
Rivas, Fernando [VerfasserIn]

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© The Author(s), under exclusive licence to Springer-Verlag GmbH Austria, part of Springer Nature 2023. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.

doi:

10.1007/s00705-023-05749-y

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

OLC213449557X