Transgenic male sterility is a technique used in genetic engineering where male sterility is induced through the introduction of foreign genes. It involves integrating a gene that causes male sterility into the genome of the A line, while the R line contains a gene that suppresses sterility. In the Barnase-BARSTAR system, the Barnase gene causes male sterility through interaction with its binding partner BARSTAR, while BARSTAR expression in the R line makes it male fertile. Transgenic male sterility allows for the large-scale production of hybrid seeds by facilitating the development of sterile male parent lines.

1. TRANSGENIC MALE STERLITY
SUBMITTED BY: ARUSHI ARORA
A-2016-30-050
MSc.1st Year
Crop improvement

2. TRANSGENE
• A transgene is a gene or genetic material that
has been transferred naturally, or by any of a
number of genetic engineering techniques
from one organism to another. The
introduction of a transgene has the potential
to change the phenotype of an organism.

3. TRANSGENIC MALE STERILITY
• When the male sterility is induced by
the techniques of genetic engineering, it is called
as transgenic male sterility.
• It is heritable and basically comes under genetic
male sterility.
• In this system, the two kinds of genes are
involved.
• One gene causes male sterility (integrated with
genome of A line) while the other suppresses it
(in R line).

5. PRINCIPLE OF BARSTAR- BARNASE
SYSTEM

7. BarnaseBARSTAR
Interaction (Binding)
Male sterile
Herbicide resistant
Barnase
Male Fertile
Herbicide Sensitive

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16. MAINTAINING SEEDS OF TRANSGENIC
PLANTS

18. Hybrid seed production using
transgenic male sterility

20. CONCLUSION

22. REFRENCES
• http://www.public.iastate.edu/~mbhattac/bh
attacharyya/MALE%20STERILITY.pdf
• https://www.ncbi.nlm.nih.gov/pmc/articles/P
MC42432/
• http://theagricos.com/plant-breeding/male-
sterility/types-of-male-sterility/
• B.D. Singh, Fundamentals of Genetics,
KALAYANI PUBLICATIONS, PG228-241