Venkatesh Prasad

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The present protocol was aimed at establishing a routine transformation procedure via Agrobacterium tumefaciens for an important Oncidium orchid cultivar. An expression vector containing hptII and gusA genes driven by the cauliflower mosaic virus (CaMV) 35S promoter was successfully introduced into the Oncidium orchid genome by A. tumefaciens.(More)
Genetic engineering to date has not been used to introduce disease resistance genes into the orchid gene pool. The ferredoxin-like protein gene originally isolated from sweet pepper is thought to function as a natural defense against infection due to its antimicrobial properties. Hence it was reasoned that introduction of this gene might produce Oncidium(More)
Rinderpest virus is the causative agent of a devastating, often fatal disease in wild and domestic bovids that is endemic in Africa, the Middle East and South Asia. The existing live attenuated vaccine is heat-labile, and thus there is a need for the development of new strategies for vaccination. This paper reports the development of transgenic pigeon pea(More)
A novel method for selection of transgenic plants utilizing the sweet pepper (Capsicum annuum L.) ferredoxin-like protein (pflp) gene as selection marker and Erwinia carotovora as the selection agent has been developed. An expression vector containing a pflp cDNA driven by a cauliflower mosaic virus 35S promoter was successfully transformed into(More)
The use of particle gun for the production of marker-free plants is scant in published literature. Perhaps this is a reflection of the widely held notion that the events generated through bombardment tend to have multiple copies of transgenes, usually integrated at a single locus, features which precludes segregating away the selectable marker gene.(More)
Identification of an appropriate selection agent and its corresponding selectable marker gene is one of the first steps in establishing a transformation protocol for a given plant species. As the promoter controls expression level of the genes, the promoter driving the selectable marker gene can affect transformation. However, investigations into the direct(More)
Cotton transgenics for resistance against cotton leaf curl disease using antisense movement protein gene (AV2) were developed in an Indian variety (F846) via Agrobacterium-mediated transformation using the protocol developed previously. A binary vector pPZP carrying the antisense AV2 (350 bp) gene along with the nptII gene was used. Transgenic nature of the(More)
Tomato is one of the most important crop plants; however, attacks by pathogens can cause serious losses in production. In this report, we explore the potential of using the Arabidopsis thionin (Thi2.1) gene to genetically engineer enhanced resistance to multiple diseases in tomato. Potential thionin toxicity in fruits was negated by the use of a(More)
Oral tongue squamous cell carcinomas (OTSCC) are a homogeneous group of tumors characterized by aggressive behavior, early spread to lymph nodes and a higher rate of regional failure. Additionally, the incidence of OTSCC among younger population (<50yrs) is on the rise; many of whom lack the typical associated risk factors of alcohol and/or tobacco(More)
1 variants and pathways linked to risk habits, HPV, clinical parameters and tumor 2 recurrence 3 4 Neeraja M Krishnan, Saurabh Gupta, Vinayak Palve, Linu Varghese, Swetansu 5 Pattnaik, Prachi Jain, Costerwell Khyriem, Arun K Hariharan, Kunal Dhas, 6 Jayalakshmi Nair, Manisha Pareek, Venkatesh K Prasad, Gangotri Siddappa, 7 Amritha Suresh, Vikram D(More)