Genomics is the science of study of the genetic structure of organisms,
DNA coding and its manipulation. Synthetic genomics is a new branch of genomics
which involves the synthetic creation of genetic matter. DNA holds the genetic
information of the cell and Synthetic genomics aims at creating artificial DNA
and hence create artificial life. DNA is chemically synthesized and
computational and bioinformatics techniques are used to code and design
the favorable genetic structure. Until the development of Synthetic
genomics, the ways by which genetic structure changed was through evolution and
artificially through induced mutation. But, the result of induced mutation will
not be specific. With Synthetic genomics, the whole genetic hardware of the
cell could be changed and the cell as a whole will work according to the newly
synthesized genome.
This has paved way for a new era in genetic biology. Scientists can now
create organisms with unique and useful genetic material that was marked as
impossible to obtain. With Synthetic genomics, small chromosome segments,
genes, gene processing or even an entirely new genome could be produced to make
the organism give the desired result. This has given scientists to foresee
newer advancements like production of biofuels and specific vaccines against
diseases.
De Novo synthesis of gene segments has been used since 35 years, but
creating a whole genome from this would take years. This has become easier now
with Synthetic genomics where DNA synthesizers are used to create genetic
material using reagents quicker than the earlier methods. Har Gobind Khorana
and his 17 co-workers first synthesised the gene in 1970s. Since then
scientists have been working on creating synthetic genes by the basics of
Synthetic genomics. Recombinant DNA techniques was largely followed till recent
times as time consuming rDNA techniques have been replaced largely with
Synthetic genomics.
The first artificial life was created through Synthetic genomics in May
2010, when Craig Venter and his team created an entirely new bacterial genome.
It has been called rightly as designer organism as the scientist designs the
genome of the cell from scratch. The bacterium thus produced was watermarked by
the scientists so that at any level of its progeny, the scientist will be able
to identify it as synthesized. Synthetic Genomics Inc. was found by Craig
Venter and team now aims to produce biofuels from genetically
synthesized microbes.
Synthetic Genomics Inc. aims to produce the highly demanded Ethanol from
algae produced through synthetic genomics. The scientists aim to produce new
algal cells that would release oils which can be later refined to produce
biofuels. The project is funded at $600 million by ExxonMobil. There are other
researches in Synthetic genomics like methods to increase the hydrocarbon
recovery by using microbes and also advanced agricultural products from
synthetic genomics. The proper assembly of the genome and its expression in the
cell is the major challenge faced by scientists.
As with any other technological advancement, synthetic genomics has also
several associated risks. The potential risks that Synthetic genomics might
pose to the future include bioterrorism, health risks to scientists and
laboratory workers and possible leak of synthetically structured organism’s
intro the environment creating environmental imbalance. Considering the
technology available today, constructing even a simple virus is very difficult
but with technological advancements, this process might become easy. Synthetic
genomics can be used to produce bacteria or virus which can be used in bio
warfare or bioterrorism. Viruses which had posed severe threat though the
disease they caused like the Variola virus of 1918 could be reproduced through
Synthetic genomics. But, according to reports, even without these Synthetic
genomics advancements, there are several other methods of bio-war and
bio-terrorism and the risks with every technology remains, yet strict
precautions are taken.
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