Wednesday, February 20, 2019

He Left His DNA Fingerprints


Born in an India at the cusp of independence to modest parents in the village of Kalwari in Jaunpur district in Uttar Pradesh Professor Lalji Singh became synonymous to the words DNA Fingerprinting to a generation of Indians. Lalji (as he used to be called) and CCMB (the Centre for Cellular and Molecular Biology) became household names when DNA fingerprinting was used to identify the victims and nail the criminals in the assassination case of the late Prime Minister Rajiv Gandhi and the gruesome Naina Sahni Tandoor murder case in the 1990s. Today, DNA evidence is admissible in the courts and is used routinely in such cases as the Dadri lynching or the N D Tiwari paternity suit all due to the efforts of Lalji Singh.



Lalji earned a PhD from the Banaras Hindu University in 1971 studying the chromosomal differences between male and female snakes. He went on to identify a region of DNA that was coined the Banded Krait minor (Bkm) and discovered that the region of DNA was present in almost all species he could test and that the GATA repeat sequence of letters in this DNA has the ability to differentiate between species and even individuals of the same species! This meant that by using the Bkm region in the DNA one could distinguish between individuals and find similarities between parents and their children. For Lalji, DNA fingerprinting was not just a technique to use but a lifelong passion. In the initial days of presenting DNA Fingerprinting evidence in legal cases he faced stiff resistance. He campaigned incessantly for use of modern scientific methods, appeared in courts regularly and testified not just on the particular case but also for the need and importance of using DNA fingerprinting. His efforts paid off and now DNA evidence is routinely used in criminal and civil cases in the country. Recognizing the growing need for expertise in genetic diagnostics and identification, Department of Biotechnology in 1995 established the Centre for DNA Fingerprinting and Diagnostics (CDFD) in Hyderabad under the leadership of Lalji Singh.

He became the Director of CCMB in 1998 as the world was entering the era of genomics (the study of the complete DNA content of a cell). He introduced new state-of-the-art technologies and instruments into the institute. Lalji brought with him his unique style of leadership. He put in his more than hundred per cent effort and expected the same of everyone. He ran the institute like a tight ship and personally pushed each cog in the wheel to strive for their best. While he pushed CCMB to enter the modern age, he also continued his interest in using DNA fingerprinting to find differences and similarities between species using the Bkm DNA. He spearheaded an effort to bring modern genetic tools to improve conservation of endangered species and prevention of illegal trading in wildlife products. This led to the establishment of the only dedicated Laboratory for Conservation of Endangered Species (LaCONES) in the country that is doing path-breaking work in the field of wildlife forensics and conservation of important wildlife species. His tireless efforts in the field of genetics and genomics was recognized by the Government of India, when he was awarded the Padma Shri in 2004.

During his final years at CCMB he continued his interests by initiating genomic studies to understand the complex origins of population groups in India. These studies revealed the genetic footprints of the early human migration from Africa to Asia and onward. His journey came full circle as he moved back to Banaras Hindu University as the Vice Chancellor in 2009. During his time there he started a Masters course in Forensic Science at the BHU. After his tenure as the VC he headed back to Hyderabad to continue his efforts at bringing science to the public through his Genome Foundation. Almost as if to say goodbye to the city that taught him all his tools, Lalji went back to Varanasi in his final hours. 
On his passing we have lost an eminent scientist, an able administrator and an institution builder, who encouraged and inspired all those around him to excel. As recipients of the privilege of having been associated with him, we can say his legacy in areas of biology, forensics, law and conservation will all live on, as he left his DNA fingerprints wherever he went.

Chetana Sachidanandan earned her PhD from CCMB and is currently a scientist at CSIR-Institute of Genomics and Integrative Biology, New Delhi. 
K Thangaraj is a scientist at CSIR-Centre for Cellular and Molecular Biology, Hyderabad.



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