Título

A lineage of begomoviruses encode rep and AC4 proteins of enigmatic ancestry: hints on the evolution of geminiviruses in the new world

Autor

SANDRA ILIANA TORRES HERRERA

ANGELICA ROMERO OSORIO

OSCAR ALBERTO MORENO VALENZUELA

GUILLERMO PASTOR PALACIOS

YAIR CARDENAS CONEJO

Jorge Ramiez_Prado

Lina Raquel Riego Ruiz

YERENI MINERO GARCIA

Salvador Ambriz Granados

Gerardo Rafael Argüello Astorga

Nivel de Acceso

Acceso Abierto

Licencia

http://creativecommons.org/licenses/by-nc-nd/4.0

Identificador alterno

doi: https://doi.org/10.3390/v11070644

Materias

Geminivirus evolution - (AUTOR) Replication protein - (AUTOR) Curtovirus taxonomy - (AUTOR) Endogenous viral element - (AUTOR) Replication origin - (AUTOR) Rolling-circle replication - (AUTOR) BIOLOGÍA Y QUÍMICA - (CTI) CIENCIAS DE LA VIDA - (CTI) VIROLOGÍA - (CTI) VIROLOGÍA - (CTI)

Resumen o descripción

"The begomoviruses (BGVs) are plant pathogens that evolved in the Old World during the Cretaceous and arrived to the New World (NW) in the Cenozoic era. A subgroup of NW BGVs, the "Squash leaf curl virus (SLCV) lineage" (S-Lin), includes viruses with unique characteristics. To get clues on the evolutionary origin of this lineage, a search for divergent members was undertaken. Four novel BGVs were characterized, including one that is basal to the group. Comparative analyses led to discover a ~670 bp genome module that is nearly exclusive of this lineage, encompassing the replication origin, the AC4 gene, and 480 bp of the Rep gene. A similar DNA module was found in two curtoviruses, hence suggesting that the S-Lin ancestor acquired its distinctive genomic segment by recombination with a curtovirus. This hypothesis was definitely disproved by an in-depth sequence analysis. The search for homologs of S-Lin Rep uncover the common origin of Rep proteins encoded by diverse Geminiviridae genera and viral "fossils" integrated at plant genomes. In contrast, no homolog of S-Lin Rep was found in public databases. Consequently, it was concluded that the SLCV clade ancestor evolved by a recombination event between a primitive NW BGV and a virus from a hitherto unknown lineage."

Editor

MDPI AG

Fecha de publicación

2019

Tipo de publicación

Artículo

Versión de la publicación

Versión publicada

Recurso de información

http://ipicyt.repositorioinstitucional.mx/jspui/handle/1010/2145

Formato

application/pdf

Sugerencia de citación

Torres-Herrera, S.I.; Romero-Osorio, A.; Moreno-Valenzuela, O.; Pastor-Palacios, G.; Cardenas-Conejo, Y.; Ramírez-Prado, J.H.; Riego-Ruiz, L.; Minero-García, Y.; Ambriz-Granados, S.; Argüllo-Astorga, G.R. A Lineage of Begomoviruses Encode Rep and AC4 Proteins of Enigmatic Ancestry: Hints on the Evolution of Geminiviruses in the New World. Viruses 2019, 11, 644.

Repositorio Orígen

Repositorio IPICYT

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