Bt Cotton- Transgenic Crop In
Dept. of Genetics and Plant Breeding
University of Agricultural Sciences
Dharwad, Karnataka, India, 580005
Classical plant breeding is limited to the
introduction of required characters into plant by
genetic crossing during sexual reproduction.
To feed the ever increasing population more
and more food has to be produced from less
and less land water and other natural resources
It is obvious that emphasis has to be laid on
new technologies that can improve crop yield
against adverse conditions of biotic and a biotic
stresses and improve the quality .
The earlier part of plant biotechnology era has
been the development of tissue culture protocols
of several commercially important crops.
The “gene revolution” as compared to green
revolution is poised to benefit both poor and rich
farmers equally and has an immense potential in
transforming global agriculture.
In India, significant efforts have been made to
significantly for develop several programmes in
WHAT IS A TRANSGENIC CROP
–A transgenic crop is a crop which
contains a gene or genes of a different
species artificially inserted in its
genome,which may come from an
unrelated plant or from a completed
Why make transgenic crops?
•Due to limitations of conventional
breeding for attaining the desirable
traits use of recombinant DNA
technology has been taken
advantage and development of
Methods of producing transgenic plant
Bacillus thuringiensis transgenic cotton
Classification of insecticidal BT proteins.
GeneType Insect Host Size (kD)
Caterpillars / Fly larvae
.The gene of interest is spliced out