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http://cicy.repositorioinstitucional.mx/jspui/handle/1003/1688| A Lineage of Begomoviruses Encode Rep and AC4 Proteins of Enigmatic Ancestry: Hints on the Evolution of Geminiviruses in the New World | |
| SANDRA ILIANA TORRES HERRERA ANGELICA ROMERO OSORIO OSCAR ALBERTO MORENO VALENZUELA GUILLERMO PASTOR PALACIOS Yair Cardenas-Conejo Jorge Ramiez_Prado Lina Riego-Ruiz YERENI MINERO GARCIA Salvador Ambriz Granados Gerardo Rafael Argüello Astorga | |
| Acceso Abierto | |
| Atribución-NoComercial-SinDerivadas | |
| GEMINIVIRUS EVOLUTION REPLICATION PROTEIN CURTOVIRUS TAXONOMY ENDOGENOUS VIRAL ELEMENT REPLICATION ORIGIN ROLLING-CIRCLE REPLICATION | |
| 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 | |
| 2019 | |
| Artículo | |
| Viruses, 11(7), 644, 2019 | |
| Inglés | |
| Torres-Herrera, S. I., Romero-Osorio, A., Moreno-Valenzuela, O., Pastor-Palacios, G., Cardenas-Conejo, Y., Ramírez-Prado, J. H., ... & Argüello-Astorga, G. R. (2019). A Lineage of Begomoviruses Encode Rep and AC4 Proteins of Enigmatic Ancestry: Hints on the Evolution of Geminiviruses in the New World. Viruses, 11(7), 644 | |
| BIOLOGÍA MOLECULAR DE PLANTAS | |
| Versión publicada | |
| publishedVersion - Versión publicada | |
| Aparece en las colecciones: | Artículos de Investigación Arbitrados |
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| Fichero | Tamaño | Formato | |
|---|---|---|---|
| 2019_S.Torres.pdf | 5.55 MB | Adobe PDF | Visualizar/Abrir |