Tomato leaf curl Gujarat virus

Family   : Geminiviridae
Genus    : Begomovirus
Acronym  : ToLCGV

Introduction

Tomato leaf curl Gujarat virus (ToLCGV) has been identified as one of the most destructive pathogens causing tomato leaf curl disease (ToLCD) in India. Infected plants show severe symptoms of ToLCD such as leaf curling, leaf crinkling, yellowing and leaf rolling. The association of cognate DNA B component could not be ascertained from infected samples. Indeed, like other Old World begomoviruses, the present ToLCGV isolates were found to be associated with a particular betasatellite, Tomato yellow leaf curl Thailand betasatellite (TYLCTHB). Although DNA A of ToLCGV isolates could alone infect tomato inducing systemic symptoms, the co-inoculation of TYLCTHB reduced the incubation period without influencing the accumulation of helper virus DNA and hence, differential pathogenesis among ToLCGV isolates was governed by the helper component rather than betasatellite.

Major Diseases

Leaf curl disease

Geographical Distribution

Widespread throughout the country

Particle Morphology

Geminate particles

Transmission Method

Transmitted through whitefly vector, Bemisia tabaci in persistent manner.

Detection

ELISA, PCR and rolling circle amplification.

Host Range and Symptomatology ShowHide

Host	Symptoms
Tomato	Leaf curling, leaf crinkling, yellowing and leaf rolling.

References ShowHide

1	Chakraborty, S. ; Pandey, P. K. ; Banerjee, M. K. ; Kalloo, G. ; Fauquet, C. M., A new begomovirus species causing tomato leaf curl disease in Varanasi, India.. 2003, Plant Disease, 87, 3, pp 313.
2	Chakraborty, S. ; Pandey, P. K. ; Banerjee, M. K. ; Kalloo, G. ; Fauquet, C. M., Tomato leaf curl Gujarat virus, a new Begomovirus species causing a severe leaf curl disease of tomato in Varanasi, India.. 2003, Phytopathology, 93, 12, pp 1485-1495.
3	Chakraborty, S. ; Vanitharani, R. ; Chattopadhyay, B. ; Fauquet, C. M., Supervirulent pseudorecombination and asymmetric synergism between genomic components of two distinct species of begomovirus associated with severe tomato leaf curl disease in India.. 2008, Journal of General Virology, 89, 3, pp 818-828.
4	Kirthi, N. ; Priyadarshini, C. G. P. ; Sharma, P. ; Maiya, S. P. ; Hemalatha, V. ; Sivaraman, P. ; Dhawan, P. ; Rishi, N. ; Savithri, H. S., Genetic variability of begomoviruses associated with cotton leaf curl disease originating from India.. 2004, Archives of Virology, 149, 10, pp 2047-2057.
5	Naimuddin Kamaal ; Mohammad Akram ; Agnihotri, A. K., Molecular evidence for the association of Tomato leaf curl Gujarat virus with a leaf curl disease of Phaseolus vulgaris L.. 2015, Journal of Phytopathology, 163, 1, pp 58-62.
6	Punam Kumari ; Singh, A. K. ; Brotati Chattopadhyay ; Supriya Chakraborty, Molecular characterization of a new species of Begomovirus and betasatellite causing leaf curl disease of tomato in India.. 2010, Virus Research, 152, 01-Feb, pp 19-29.
7	Punam Kumari ; Singh, A. K. ; Sharma, V. K. ; Brotati Chattopadhyay ; Supriya Chakraborty, A novel recombinant tomato-infecting begomovirus capable of transcomplementing heterologous DNA-B components.. 2011, Archives of Virology, 156, 5, pp 769-783.
8	Punam Ranjan ; Kumar, R. V. ; Chakraborty, S., Differential pathogenicity among Tomato leaf curl Gujarat virus isolates from India.. 2013, Virus Genes, 47, 3, pp 524-531.
9	Punam Ranjan ; Singh, A. K. ; Kumar, R. V. ; Saumik Basu ; Chakraborty, S., Host-specific adaptation of diverse betasatellites associated with distinct Indian tomato-infecting begomoviruses.. 2014, Virus Genes, 48, 2, pp 334-342.
10	Singh, A. K. ; Brotati Chattopadhyay ; Supriya Chakraborty, Biology and interactions of two distinct monopartite begomoviruses and betasatellites associated with radish leaf curl disease in India.. 2012, Virology Journal, 9, 43, pp (16 February 2012).
11	Sivalingam, P. N. ; Anupam Varma, Non-tomato natural hosts of tomato infecting begomoviruses in north-western India.. 2007, Indian Journal of Virology, 18, 1, pp 20-27.

Sequences ShowHide