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Updated: Oct 16, 2025

Arbovirus Infections As Screening Tools for the Identification of Viral Immunomodulators and Host Antiviral Factors
Published on: September 13, 2018
A new bipartite begomovirus naturally infecting Pyrenacantha sp. in Mozambique
Baltazar A I Chipiringo1,2, João P Silva1, Renan S Cascardo1
1Dep. de Fitopatologia/BIOAGRO, Universidade Federal de Viçosa, Viçosa, MG, 36570-900, Brazil.
Abstract:
A begomovirus was isolated from a Pyrenacantha sp. plant with yellow mosaic symptoms collected in a maize production field in Mozambique. The complete DNA-A and DNA-B components have a genomic organization typical of Old World, bipartite begomoviruses. Based on the current ICTV species demarcation criteria for the genus Begomovirus, the virus isolate, named Pyrenacantha yellow mosaic virus (PyYMV), is a member of a new species, for which the name "Begomovirus pyrenacanthae" is proposed. Alignment of their common regions (CR) indicated a 35-nt insertion in the DNA-A CR. The nt sequence identity between the CRs is only 83% but increases to 96% when the 35-nt insertion is removed from the alignment. This is the first report of a begomovirus naturally infecting Pyrenacantha spp.

