Browsing by Author "Gupta, Ambika"

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    The water-deficit stress and red-rot-related genes in sugarcane
    (Springer, 2010) Gupta, Vikrant; Raghuvanshi, Saurabh; Gupta, Ambika; Saini, Navin; Gaur, Anupama; Khan, M.S.; Gupta, R.S.; Singh, J.; Duttamajumder, S.K.; Srivastava, S.; Suman, A.; Khurana, Jitendra P.; Kapur, Raman; Tyagi, Akhilesh K.
    Sugarcane is an important international commodity as a valuable agricultural crop especially in developing countries. Sequencing was carried out to generate >35,000 expressed sequence tags (ESTs) from healthy as well as red-rot-infected tissue of Indian subtropical variety of sugarcane. Subsequent clustering with existing sugarcane ESTs in public databases identified 4,087 clusters, including 85 clusters that preferentially express upon Colletotrichum falcatum (red-rot) infection, which were previously unreported. Real-time reverse transcription-PCR profiling of selected EST clusters identified several sugarcane clusters that show differential expression in response to biotic and abiotic stress conditions. Twenty-five stress-related clusters showed >2-fold relative expression during water-deficit stress in sugarcane. Similarly, EST clusters could be identified, which exhibit association with red-rot disease when assessed in red-rot-susceptible and red-rot-resistant varieties of sugarcane. Such EST clusters are good candidates for in-depth analysis to elucidate stress-responsive pathways in sugarcane and facilitate genetic manipulation to tailor this crop for tolerance to various stresses.