Institutional Publications

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Author: search.filters.author.Chaurasia, ShikshaHas files: No

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    Use of wild relatives in breeding programs to develop climate resilient wheat
    (Elsevier B.V., 2025) Chaurasia, Shiksha; Bhatia, Sabhyata
    The changing climate is having a significant impact on wheat production. This impact is not limited to increasing heat and drought stress but also includes other stresses, extreme weather events, and adverse conditions. To meet the growing food demands of a rising population, wheat breeding requires incorporating new, diversified resources that can produce high-quality wheat in various stressful environments. Wild relatives that are genetically similar are countless resources for improving yield-related traits and increasing tolerance to environmental stress. By using wild relatives to introduce genes into widely grown crops and contribute to environmental tolerance, we can develop crops resilient to climate change. In this chapter, we confer the impression of climate change on wheat production, as well as its wild relatives. We also highlight the challenges of hybridization, such as genetic distance, crossover frequencies, and selecting desirable traits while minimizing linkage drag. Finally, we deliver an index of valuable traits that could exist in these species and potentially be exploited through interspecific hybridization approaches. Here is an outline of how introgression works and what factors distress the breeding approach. We will also discuss optimization methods to increase the chances of recovering desired climate-resilient introgressive lines in wheat improvement programs.
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    Emerging roles of melatonin in mitigating salinity stress of legumes
    (Elsevier B.V., 2023) Chaurasia, Shiksha; Sapna, Sapna; Padhy, Asish Kumar; Bhatia, Sabhyata
    Melatonin (N-acetyl-5‑methoxy tryptamine) is a multi-functional molecule that is distributed in all living organisms and it performs essential roles in environmental stress tolerance. Salt stress enhances the rapid accumulation of melatonin in plants. Melatonin provides resistance to salt stress by manipulating various regulatory mechanisms at the biochemical and molecular levels throughout different plant developmental stages. Conventionally, legumes are consumed along with cereal-based staples to ensure wholesome nutritional intake. After confirming their nutritional and health-promoting effects, recently their demand is constantly increasing. This has guided the researchers to focus on developing legumes to cope with the changing climate scenario. In legumes, melatonin concentration varies from crop to crop under salt stress. This review emphasizes melatonin biosynthesis in plants with a special focus on legumes and their responses to endogenous and exogenous melatonin application. This manuscript also throws light on the physiological, biochemical, and molecular basis of melatonin-mediated salinity stress tolerance in legumes. The future directions for enhancing the salt stress tolerance in legumes are also discussed. As, Melatonin promotes germination potential, seedling biomass, photosynthesis rate, pod number, and yield of legumes under the influence of salinity stress, this review can provide insights for using melatonin to develop salt stress tolerant legumes for sustainable food production.