Plant Sciences - Theses

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    Activation Tagging Identifies Helicases and GRAS Transcription Factors as Potential Candidate Genes for Orchestrating Stress Tolerance in Rice
    (University of Hyderabad, 2021-08) Dutta, Mouboni ; Kirti, P. B.
    Rice is a crop plant that loves to sustain itself in adequate levels of water on the field. About 1400 litres of water is required to produce 1Kg rice on average. 75% of the total water resource and 34-43% of total irrigation water worldwide is utilized solely for rice production (Laha et al., 2017). The green revolution caused a boom in rice production in many nations between 1940 and 1960 but continued population increase, and shortage of land and water resources imposed a challenge to its sustainability. For example, around 20% of rice cultivated area faces moderate to severe water stress during the cultivation period. Drought stress at any period of a rice life cycle, especially during the reproductive stage, can cause significant yield loss. Additionally, demand of rice is expected to increase by 70% in the next 30 years (Laha et al., 2017; Muthayya et al., 2014). Therefore, the development of varieties resistant to abiotic stresses like drought is an urgent requirement to meet snowballing demand of rice. Recent advances in the genome based research like the development of transgenic approaches, availability of high quality genome sequence, and rice transformation protocols provide ample opportunities for identifying and characterizing novel genes and integrate them for developing stress tolerant varieties of rice (Mottaleb et al., 2012).
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    Identification and Molecular mapping of novel Bacterial leaf blight resistance genes in rice
    (University of Hyderabad, 2009-09) Sujatba, K. ; Mishra, B.
    Rice (Oryza sativa L.) is the most important crop of India and is grown all over the country in diverse ecosystems. It is agronomically and nutritionally, most important food crop of the world serving as the staple food for nearly 2.4 billion people. It plays a pivotal role in Indian economy being staple food for two thirds of the population. With 44.62 million hectares planted to rice, India ranks first in area and second in production (96 , million tons). 21% of the total calorie requirement in the Indian diet is being supplied by k~~ \P~rice. It is a member of the Gramineae family, has a genome size of 0.45 XI09 bp '~ tArumunagathan and Earle, 1991), which is one tenth the size of the human genome and I,tY> '® i, • modo! 'y,tom fo< ",,,I .,nom' 'Mly,i,. Oiff",nt .,notyp" of ,i" .re .d.pl,d to • ~ l ~ ~ ~ ~ wide range of environmental conditions from tropical flooding to temperate dry land, making it an excellent example for real-life, adaptive responses. The production of rice in India has shown an increasing trend from 83 million tonnes to 93 million tonnes during 1997-98 to 2001-02 (http://www.fao.orgirice2004/eni pdf/nigam.pdf), and is presently around 96 million tonnes. But future projections indicate that the current levels of production may not be sufficient to feed the ever increasing population in our country. In order to meet the food demands for the future, concerted efforts are required to increase the rice productivity and minimize production losses due to pests and diseases. Even though the introduction of high yielding varieties (HYVs), development and adoption of modern rice production technologies have led to progressive growth in rice production, it also inadvertently increased the genetic
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    Functional characterization of abiotic stress responsive genes from jatropha curcas L., a Potential biofuel plant
    (University of Hyderabad, 2017-03-30) Shalini, Mudalkar ; Ramachandra Reddy, Attipalli
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