Authors:
E. Hemaprabha Tamil Nadu Agricultural University Department of Plant Molecular Biology and Biotechnology Coimbatore 641 003 Tamil Nadu India

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R. Balasaraswathi Tamil Nadu Agricultural University Department of Biochemistry, Centre for Plant Molecular Biology Coimbatore 641 003 Tamil Nadu India

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R. Samiyappan Tamil Nadu Agricultural University Centre for Plant Protection Studies Coimbatore 641 003 Tamil Nadu India

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The tomato spotted wilt disease caused by tospoviruses in tomato is an important viral disease. Artificial screening of tomato wild species and cultivars for resistance to tospoviruses revealed the wild species Lycopersicon peruvianum to be resistant to tospovirus infection. The protein profile in L. peruvianum showed additional proteins of molecular sizes of 45kDa, 34kDa and 26kDa and an additional 55kDa protein was detected in L. pimpinellifolium . The peroxidase isozyme pattern was also found to be distinct in L. peruvianum . cDNAs of R genes coding for tospovirus resistance were isolated from the wild species, L. peruvianum (TNAU T). The partial cDNAs were cloned in the vector pTZ57R/T, sequenced and characterized. The tomato varieties, hybrid and wild species L. pimpinellifolium selected in this study were susceptible to tospovirus infection and did not show presence of R genes. Sequence analysis of the partial cDNAs corresponding to the R genes isolated from the wild species L. peruvianum showed considerable homology on the protein level with already available resistance proteins like late blight resistance protein, root knot nematode resistance protein, potato disease resistance protein, Hero protein confirming resistance against potato cyst nematode, and Prf protein confirming resistance against Pseudomonas syringae pv. tomato . In the present study, R genes effective against tospoviruses were isolated and characterized from a wild species of tomato. These results have important impact in terms of transformation strategies to develop tospovirus resistant transgenic plants.

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Editor-in-Chief

Jenő KONTSCHÁN Centre for Agricultural Research, Hungary

Technical Editor

Ágnes TURÓCI Centre for Agricultural Research, Hungary

Section Editor

K SALÁNKI Centre for Agricultural Research, Hungary
 

Editorial Board

Z BOZSÓ Centre for Agricultural Research, Hungary
PE CHETVERIKOV Saint-Petersburg State University, Russia
JX CUI Henan Institute of Science and Technology, China
J FODOR Centre for Agricultural Research, Hungary
Z IMREI Centre for Agricultural Research, Hungary
BM KAYDAN Çukurova University, Turkey
L KISS University of Southern Queensland, Australia
V MARKÓ Hungarian University of Agriculture and Life Sciences, Hungary
MW NEGM Ibaraki University, Japan
L PALKOVICS Széchenyi István University, Hungary
M POGÁNY Centre for Agricultural Research, Hungary
D RÉDEI National Chung Hsing University, Taiwan
A TOLSTIKOV University of Tyumen, Russia
J VUTS Rothamsted Research, UK
GQ WANG Guangxi University, China

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2023  
Scopus  
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Acta Phytopathologica et Entomologica Hungarica
Language English
Size B5
Year of
Foundation
1966
Volumes
per Year
1
Issues
per Year
2
Founder Magyar Tudományos Akadémia  
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Address
H-1051 Budapest, Hungary, Széchenyi István tér 9.
Publisher Akadémiai Kiadó
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H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
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ISSN 0238-1249 (Print)
ISSN 1588-2691 (Online)

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