Croton golden mosaic virus: a new bipartite begomovirus isolated from Croton hirtus in Colombia

Abstract

A new begomovirus infecting Croton hirtus (Euphorbiaceae) from Colombia has been characterized. The complete DNA-A and DNA-B components were determined to be 2613 and 2551 nt in length, respectively, showing the typical genome organization of bipartite New World begomoviruses. DNA-A showed the highest nucleotide sequence identity (81.2%) to sida yellow mottle virus (JN411687), a begomovirus isolated from Sida rhombifolia in Cuba. Based on the current ICTV species demarcation criterion for the genus Begomovirus, we report a new member of this genus infecting C. hirtus. We propose that it be named Croton golden mosaic virus (CroGMV), based on the symptoms observed in the weed. Phylogenetic analysis revealed that CroGMV segregates into a single clade and has some relationship with viruses from Central America and the Caribbean. CroGMV is the first Croton-infecting bipartite begomovirus reported in the world.

Partial molecular characterization of begomoviruses isolated from weeds collected in tomato crops in the southeast of Valle del Cauca, Colombia

“…Further studies are required to explore the infectivity, geographical distribution and host range of new begomoviruses. Recently, our research group reported the complete genome sequence of begomoviruses isolated from C. hirtus and R. minima, confirming them as new begomoviruses (Vaca-Vaca et al, 2018;López-López et al, 2019).…”

“…In 2018 and 2019, the complete genomes of begomoviruses were found in C. hirtus and R. minima, both new begomoviruses with the proposed names Croton golden mosaic virus (CroGMV) and Rhynchosia golden mosaic Colombia virus (RhGMCV), respectively. (Vaca-Vaca et al, 2018;López-López et al, 2019). Recently, new begomovirus hosts were identified in a study conducted in Valle del Cauca on weeds associated with chili pepper crops: Parthenium hysterophorus, Malvastrum sp., Sida acuta, Acalypha sp., Euphorbia hirta, R. minima and R. humilis (Vaca-Vaca et al, 2019a).…”

“…Many scientific reports suggest that weeds are potential sources of primary inoculum and play an important role as reservoirs and alternative hosts that spread viruses to new host crops and lead to major yield losses (Barreto et al, 2013;Prajapat et al, 2014;Vaca-Vaca et al, 2018). Therefore, the epidemiology of the geminivirus is incomplete without the study of weeds with crop-infecting begomoviruses that may have arisen from endemic weed-infecting viruses; there are known weed-infecting begomoviruses that can infect crops (Sanchez-Campos et al, 2000;Andrade et al, 2006).…”

Begomovirus Caboniensis: a New Bipartite Begomovirus Isolated From Cnidoscolus Urens in Brazil

“…Several species of begomoviruses have been reported in non-cultivated plants in the family Euphorbiaceae [7,8,9,10,11,12,13]. In Cnidoscolus urens, a wild host largely found in northeastern Brazil, only two viruses were reported: Cnidoscolus mosaic leaf deformation virus (CnMLDV) [14] and Cnidoscolus blistering yellow mosaic virus (CnBYMV) [not published].…”

Caracterización molecular de un nuevo begomovirus aislado de cinco especies de arvenses colectadas en cultivos de tomate en Valle del Cauca

“…y R. minima (Leguminosae) (Vaca-Vaca et al, 2011;López-López et al, 2012;López-López et al, 2014). Sin embargo, a la fecha sólo ha sido reportado la obtención del genoma completo de un begomovirus aislado de C. hirtus, el cuál fue denominado virus del mosaico dorado de Croton (croton golden mosaic virus, CroGMV) (Vaca-Vaca et al, 2018). Con base en lo anterior se hace necesario establecer las identidades moleculares plenas de otros begomovirus previamente detectados en las otras arvenses.…”