What is transgenic tomato plants?

A genetically modified tomato, or transgenic tomato, is a tomato that has had its genes modified, using genetic engineering. The first trial genetically modified food was a tomato engineered to have a longer shelf life (the Flavr Savr), which was on the market briefly beginning on May 21, 1994.

How is a transgenic tomato made?

The variety was made by introducing a gene from the model plant Arabidopsis thaliana—called AtMYB12—into the tomato genome. The gene codes for a transcription factor that binds to the promoter regions of genes encoding various metabolic enzymes.

What is the name of transgenic tomato?

Flavr Savr (also known as CGN-89564-2; pronounced “flavor saver”), a genetically modified tomato, was the first commercially grown genetically engineered food to be granted a license for human consumption.

Which gene is targeted in transgenic tomato plant?

incognita-specific protease gene, cathepsin L cysteine proteinase (Mi-cpl-1), was targeted to generate tomato transgenic lines to evaluate the genetically modified nematode resistance.

What is meant by transgenic plants?

Introduction. Transgenic plants are the ones, whose DNA is modified using genetic engineering techniques. The aim is to introduce a new trait to the plant which does not occur naturally in the species. A transgenic plant contains a gene or genes that have been artificially inserted.

Which method is used for development of tomato?

Different methods of crop improvement have been developed and we can group them broadly as Conventional (classical or traditional) breeding, Anther culture aided breeding, Molecular marker assisted breeding, Mutation breeding, Genetic Engineering and Plant Participatory Breeding.

Who discovered Flavr Savr tomato?

Calgene
The Flavr Savr tomato was developed by Calgene, a small Davis, Calif. -based ag biotech company started in the 1980s. In 1994, its slow-ripening tomato was the first genetically engineered food to get marketing approval from the Food & Drug Administration.

What is Speciality of Flavr Savr tomato?

Flavr Savr is a genetically modified tomato. This was the first commercially grown genetically engineered food. Flavr Savr tomato is more resistant to rotting. This feature is due to the introduction of an antisense gene which interferes with the production of enzyme polygalacturonase.

Why was the Flavr Savr tomato created?

The Flavr Savr was designed to be able to be left longer to ripen on the vine (many natural tomatoes are picked unripe and then ripened through chemical means) and to have a longer shelf life than natural tomatoes.

What is transgenic plants PDF?

Transgenic plants are plants in which one or more genes from another species have been introduced into the genome using genetic engineering processes. The aim is to introduce a new trait to the plant which does not occur naturally in the species.

What transgenic means?

Transgenic refers to an organism or cell whose genome has been altered by the introduction of one or more foreign DNA sequences from another species by artificial means. Transgenic organisms are generated in the laboratory for research purposes.

How are Flavr Savr tomatoes genetically modified?

The FLAVR SAVR™ tomato was developed through the use of antisense RNA to regulate the expression of the enzyme polygalacturonase (PG) in ripening tomato fruit. This enzyme is one of the most abundant proteins in ripe tomato fruit and has long been thought to be responsible for softening in ripe tomatoes.

Which technique is used for Flavr Savr variety of tomato?

Answer: Genetic engineering or recombinant DNA technology is used in the production of Flavr Savr tomato.

Which technique is used for Flavr Savr tomato?

Answer: Genetic engineering or recombinant DNA technology is used in the production of Flavr Savr tomato. It has a longer shelf life due to a delay in ripening.

How does Flavr Savr work?

What is the characteristics of Flavr Savr tomato?

Characteristics. The tomato was made more resistant to rotting, by adding an antisense gene which interferes with the production of the enzyme polygalacturonase (see RNA interference). This enzyme is normally responsible for cell walls softening during the fruit ripening.

What are the uses of transgenesis?

Transgenesis is a powerful tool to study gene expression and developmental processes in higher organisms. Transgenesis helps in the improvement of genetic characters in animals. Transgenic animals serve as good models for understanding human diseases which help in the investigation of new treatments for diseases.