Bhendi yellow vein Bhubhaneswar virus

Family   : Geminiviridae
Genus    : Begomovirus
Acronym  : BYVBV

Introduction

Yellow vein mosaic disease of okra is major constraint for the production of okra in India. It is caused by whitefly transmitted begomoviruses and results in severe economic losses of the crop. A new begomovirus (OYBHU isolate) infecting okra showing yellow vein symptoms from Bhubhaneswar, India was characterized based on sequencing the viral genome and named as Bhendi yellow vein Bhubhaneswar virus (BYVBV). The association of a betasatellite suggests that the isolate is monopartite and typical of the begomoviruses infecting malvaceous hosts in the Old World. The genome organization is characteristic of begomoviruses, encoding seven ORFs with two ORFs [AV1 (CP) and AV2] in virion sense strand and five ORFs (AC1-AC5) in complementary strand. Comparisons of the virus genome sequence with other known begomoviruses suggests that OYBHU virus isolate is distinct, with Croton yellow vein mosaic virus being its nearest relative, sharing the 81.4 to 86.1% sequence identity. Recombination analyses with BYVBV suggest that it is a recombinant and may have originated by the exchange of genomic segments between the begomoviruses Croton yellow vein mosaic virus, Bhendi yellow vein mosaic virus, Cotton leaf curl multan virus and Mesta yellow vein mosaic virus.

Major Diseases

Yellow vein disease

Geographical Distribution

Orissa

Particle Morphology

Geminate particles

Transmission Method

By whitefly, Bemisia tabaci

Detection

PCR

References ShowHide

1	Venkataravanappa, V.; Reddy, C. N. L.; Salil Jalali; Reddy, M. K., Molecular characterization of a new species of begomovirus associated with yellow vein mosaic of bhendi (Okra) in Bhubhaneswar, India. . 2013, European Journal of Plant Pathology, 136, 4, pp 811-822.

Sequences ShowHide