scholarly journals Nucleotide Sequencing, Whitefly Transmission, and Screening Tomato for Resistance Against Two Newly Described Begomoviruses in Bangladesh

2005 ◽  
Vol 95 (12) ◽  
pp. 1472-1481 ◽  
Author(s):  
M. N. Maruthi ◽  
S. N. Alam ◽  
K. A. Kader ◽  
A. R. Rekha ◽  
A. Cork ◽  
...  
Keyword(s):  
Phylogenetic Trees ◽  
Disease Incidence ◽  
Tomato Leaf ◽  
Nucleotide Sequencing ◽  
New Delhi ◽  
South Indian ◽  
Identity Based ◽  
Tomato Leaf Curl ◽  
Symptom Phenotype ◽  
Leaf Curl

The molecular diversity of Tomato leaf curl viruses (ToLCVs), from the two main tomato growing areas of Jessore and Joydebpur, Bangladesh, was investigated. The viral DNA was amplified from tomato plants exhibiting mild and severe symptoms by polymerase chain reaction, and the complete genomes of the ToLCVs were sequenced. An isolate of the bipartite Tomato leaf curl New Delhi virus-Severe (ToLCNDV-Svr) was associated with the severe symptom phenotype from Jessore (ToLCNDV-Svr[Jes]). A previously undescribed monopartite virus, designated Tomato leaf curl Joydebpur virus-Mild (ToLCJV-Mld), was sequenced from plants showing mild symptoms. ToLCNDV-Svr[Jes] was most closely related to ToLCNDV-[Lucknow] at 95.7% nucleotide (nt) identity and Tomato leaf curl Gujarat virus-[Varanasi] at 90.6% nt identity, based on DNA-A and -B component sequences. ToLCJV-Mld was similar to Pepper leaf curl Bangladesh virus at 87.1% DNA-A nt identity. Identification of ToLCNDV-Svr[Jes] and ToLCJV-Mld was in addition to the previously described Tomato leaf curl Bangladesh virus, with which they shared 73.2 and 86.0% DNA-A nt identities, thus demonstrating the existence of at least three distinct viruses infecting tomato in Bangladesh. Nucleotide identities and placement in phylogenetic trees suggested that the three ToLCVs may have had different evolutionary pathways. The whitefly, Bemisia tabaci, transmitted the viruses of this study equally efficiently. Four tomato cultivars (TLB111, TLB130, TLB133, and TLB182) resistant/ tolerant to South Indian ToLCV were screened against the Bangladesh ToLCVs in 2003-04. Although challenged by diverse viruses and potentially mixed infections, disease incidence remained low (6 to 45%) in the resistant cultivars compared with local cultivars (68 to 100%).

scholarly journals Tomato leaf curl Karnataka virus from Bangalore, India, Appears to be a Recombinant Begomovirus

2002 ◽  
Vol 92 (6) ◽  
pp. 637-645 ◽  
Author(s):  
Orawan Chatchawankanphanich ◽  
Douglas P. Maxwell
Keyword(s):  
Particle Bombardment ◽  
Phylogenetic Trees ◽  
Tomato Leaf ◽  
New Delhi ◽  
Intergenic Regions ◽  
Biotype B ◽  
Distinct Member ◽  
Tomato Leaf Curl ◽  
Leaf Curl Virus ◽  
Leaf Curl

The genome of Tomato leaf curl virus (ToLCV) from Bangalore, India, a whitefly-transmitted geminivirus, was cloned (pIND9) and sequenced. The circular DNA of 2,759 nucleotides (U38239) is organized similarly to that of other begomoviruses with monopartite genomes. Comparison of the nucleotide sequence of pIND9 with other tomato-associated begomoviruses from India (Tomato leaf curl Bangalore virus [ToLCBV, Z48182]) and Tomato leaf curl New Delhi virus-Severe (ToLCNdV-Svr, U15015) showed moderate DNA sequence identities (82 to 87%) between capsid protein (CP) genes but low identities (66 to 67%) for the intergenic regions and the replication-associated protein (Rep) genes (75 to 81% identity). Phylogenetic trees generated with nucleotide sequences of the Rep and CP genes of 26 begomoviruses indicated that this ToLCV is distinct from other begomoviruses and that it may be a recombinant virus derived from at least three different viral lineages. Tomatoes (Lycopersicon esculentum) inoculated with the cloned DNA monomer of ToLCV (pIND9) via particle bombardment developed leaf curling and yellowing symptoms. The virus was transmitted by Bemisia tabaci biotype B from tomatoes infected via particle bombardment to healthy tomatoes and by sap inoculation from infected tomatoes to tomato, Nicotiana benthamiana and N. tabacum. This ToLCV is a distinct member of the genus Begomovirus from India that differs from the previously characterized Tomato leaf curl Sadasivanagar virus isolate Bangalore 1 (L12739), ToLCBV (Z48182), ToLCBV isolate Bangalore 4 (AF165098), and the bipartite ToLCNdV (U15015, U15016). Thus, this ToLCV is named Tomato leaf curl Karnataka virus (ToLCKV).

Potato apical leaf curl disease: current status and perspectives on a disease caused by tomato leaf curl New Delhi virus

2021 ◽  
Author(s):  
Ravinder Kumar ◽  
Rahul Kumar Tiwari ◽  
Arjunan Jeevalatha ◽  
Sundaresha Siddappa ◽  
Mohd. Abas Shah ◽  
...  
Keyword(s):  
Tomato Leaf ◽  
Current Status ◽  
New Delhi ◽  
Apical Leaf ◽  
Tomato Leaf Curl ◽  
Leaf Curl Disease ◽  
Leaf Curl

Tomato leaf curl New Delhi virus. [Distribution map].

2016 ◽  
Author(s):  
Keyword(s):  
Tamil Nadu ◽  
Uttar Pradesh ◽  
Tomato Leaf ◽  
New Delhi ◽  
Distribution Map ◽  
Tomato Leaf Curl ◽  
Virus Distribution ◽  
New Distribution ◽  
Distribution In Europe ◽  
Leaf Curl

Abstract A new distribution map is provided for Tomato leaf curl New Delhi virus. Geminiviridae: Begomovirus. Hosts: tomato (Solanum lycopersicum) and other Solanaceae such as aubergine (S. melongena), potato (S. tuberosum), Capsicum spp. and Cucurbitaceae. Information is given on the geographical distribution in Europe (Italy, Sicily, Spain, Mainland Spain), Asia (Bangladesh, India, Andhra Pradesh, Delhi, Gujarat, Haryana, Karnataka, Maharashtra, Punjab, Tamil Nadu, Uttar Pradesh, West Bengal, Indonesia, Java, Iran, Pakistan, Philippines, Sri Lanka, Taiwan and Thailand) and Africa (Tunisia).

Diagnostic methods of tomato leaf curl New Delhi virus in Russian Federation

2021 ◽  
Author(s):  
E. Lozovaya ◽  
Y. Prikhodko ◽  
T. Zhivaeva ◽  
E. Karimova ◽  
Y. Shneyder
Keyword(s):  
Russian Federation ◽  
Tomato Leaf ◽  
Diagnostic Methods ◽  
New Delhi ◽  
Tomato Leaf Curl ◽  
Leaf Curl

Emergence of tomato leaf curl New Delhi virus in Italy: estimation of incidence and genetic diversity

2019 ◽  
Vol 68 (3) ◽  
pp. 601-608 ◽  
Author(s):  
S. Panno ◽  
A. G. Caruso ◽  
E. Troiano ◽  
M. Luigi ◽  
A. Manglli ◽  
...  
Keyword(s):  
Genetic Diversity ◽  
Tomato Leaf ◽  
New Delhi ◽  
Tomato Leaf Curl ◽  
Leaf Curl

Diversity analysis of Tomato leaf curl New Delhi virus-[potato], causing apical leaf curl disease of potato in India

2017 ◽  
Vol 45 (1) ◽  
pp. 33-43 ◽  
Author(s):  
Arjunan Jeevalatha ◽  
Swarup Kumar Chakrabarti ◽  
Sanjeev Sharma ◽  
Vinay Sagar ◽  
Kamlesh Malik ◽  
...  
Keyword(s):  
Tomato Leaf ◽  
Diversity Analysis ◽  
New Delhi ◽  
Apical Leaf ◽  
Tomato Leaf Curl ◽  
Leaf Curl Disease ◽  
Leaf Curl

scholarly journals First report of tomato leaf curl New Delhi virus in zucchini crops in Greece

2019 ◽  
Vol 101 (3) ◽  
pp. 799-799 ◽  
Author(s):  
Chrysoula G. Orfanidou ◽  
Ioanna Malandraki ◽  
Despoina Beris ◽  
Oxana Kektsidou ◽  
Nikon Vassilakos ◽  
...  
Keyword(s):  
Tomato Leaf ◽  
New Delhi ◽  
First Report ◽  
Tomato Leaf Curl ◽  
Leaf Curl

scholarly journals Effects of Tomato Leaf Curl Virus on Growth and Yield Parameters of Tomato Crop

2021 ◽  
Vol 39 (1) ◽  
pp. 79-83
Author(s):  
Yasir Iftikhar ◽  
◽  
Mustansar Mubeen ◽  
Ashara Sajid ◽  
Mohamed Ahmad Zeshan ◽  
...  
Keyword(s):  
Disease Severity ◽  
Disease Incidence ◽  
Tomato Leaf ◽  
Growth And Yield ◽  
Tomato Crop ◽  
Tomato Leaf Curl Virus ◽  
Yield Parameters ◽  
Tomato Leaf Curl ◽  
Leaf Curl Virus ◽  
Leaf Curl

Iftikhar, Y., M. Mubeen, A. Sajid, M.A. Zeshan, Q. Shakeel, A. Abbas, S. Bashir, M. Kamran and H. Anwaar. 2021. Effects of Tomato Leaf Curl Virus on Growth and Yield Parameters of Tomato Crop. Arab Journal of Plant Protection, 39(1): 79-83. Tomato is an important vegetable crop, belongs to the family Solanaceae and is the second most consumed vegetable following potatoes. The tomato crop is grown all over the world in both summer and winter seasons, and plant viruses are a major threat to tomato production. Among these viruses, tomato leaf curl virus (TLCV) causes considerable yield loss to tomato crop. This virus is transmitted by a whitefly (Bemisia tabaci) vector. In this study, the effect of TLCV infection, on the following tomato growth and yield parameters, was evaluated: plant leaf number and area, plant biomass, plant height, root length, and plant stem diameter and yield. Tomato plants were transplanted in wellprepared plots with 4 replications. The control group was covered with polyethene bag to avoid whitefly infestation. Plants were scored on the 15th and 30th day after inoculation and TLCV disease severity was recorded. Analysis of variance (ANOVA) showed the significant differences between the healthy and infected tomato plants. Moreover, growth and yield parameters were reduced with the increase in disease incidence, disease severity and whitefly infestation. Disease severity was increased with the increase in temperature during the growing season. It can be concluded from this study that TLCV significantly affects growth and yield of the tomato crop. Keywords: Tomato, Tomato leaf curl virus, TLCV, disease incidence, disease severity.

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