Both Darjeeling MP Raju Bista and Siliguri MLA Dr Shankar Ghosh congratulated Dr Eklabya Sharma on being awarded the Padma Shri.
Both Darjeeling MP Raju Bista and Siliguri MLA Dr Shankar Ghosh congratulated Dr Eklabya Sharma on being awarded the Padma Shri. While Mr Bista extended his heartiest congratulations to Dr Eklabya Sharma on social media, Dr Ghosh today met Dr Sharma at his Siliguri residence.
Dr Sharma, originally from St Mary’s in Kurseong, had previously served as the deputy director general at International Centre for Integrated Mountain Development (ICIMOD), Kathmandu. He was also the head and the founding scientist incharge of GB Pant Institute of Himalayan Environment and Development, Sikkim, Darjeeling MP Mr Bista said.
Dr Sharma is the chairperson of Science Advisory Committee of GB Pant National Institute of Himalayan Environment and a fellow of Indian National Science Academy. He had joined as the vice chancellor of TERI School of Advanced Studies, previously known as TERI University, Delhi. Currently, he is serving as the Strategic Advisor and Distinguished Senior Fellow in Ashoka Trust for Research in Ecology and the Environment (ATREE), Bangalore
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Researchers at Delhi-based TERI School of Advanced Studies have developed an early flowering transgenic variety of mustard.
The work is important as Indian mustard is a major oilseed crop in the country and due to changing climate the number of cold days required for full plant cycle has shrunken.
Scientists have been working on improving crop varieties by modifying plant genes to make them more adaptable changing climate. Early flowering and maturing varieties can help cope with climate change, without compromising on yields.
Researchers led by Dr. Anandita Singh figured out the role of a regulatory gene, called MIR172 belonging to the micro RNA family, that is present in functionally varied forms in Indian mustard (Brassica juncea) and is responsible for a number of traits including timing of flowering. In plants, this microRNA enacts by negatively regulating the expression of some protein-coding genes involved in flowering time.
By increasing the expression of this microRNA, the researchers have developed an early flowering transgenic plant of Indian mustard cultivar Brassica juncea cv. Varuna and shown that by manipulating flowering time, one can develop a plant variety with shorter life cycle and thus help have better yields through reduced exposure to the harsh climatic conditions in the fields.
Given the diversity in evolutionary lineages of Brassica MIR172 candidates that were discovered in our study, it will be interesting to characterize the entire range of natural variants of Brassica MIR172 by altering, modulating or tinkering the expression levels and pattern of these genes and studying the impact/outcome in the plants, Dr Singh explained while speaking to India Science Wire. She said “we have good reasons to believe that novel natural alleles of Brassica MIR172 are both a blueprint and a valuable resource of favourable agronomic traits to be transferred into elite crop varieties.
Apart from MIR172, the research group is studying several genes that affect other traits that might be useful in generating better varieties. Analysis of transgenics in natural field conditions showed that most Brassica genes govern several dependent and independent agronomic traits. Changing one trait to achieve a favourable out-come may offset another trait. Thus, future studies will involve careful optimization of gene levels for minimizing trait trade-offs,Dr. Singh added.
Dr. Sunil Mukherjee, NASI Senior Scientist at the Department of Genetics, University of Delhi South Campus, who was not connected with the study, feels the study is important. Most crop plants are polyploids or having multiple copies of a gene in nature and a longstanding question in biology is how polyploidy influences gene expression. This research is a welcome move in this direction as MIR172 has been used as a probe in Brassica polyploidy and structural variants of MIR172 family have been nicely portrayed. It has also been shown that family members are functionally different and polyploidy affects gene outcomes.
The research team included S M Shivaraj and Aditi Jain, besides Anandita Singh from TERI School of Advanced Studies. The research results have been published in journal Molecular Genetics and Genomics. This work was supported by the Department of Biotechnology.
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