With equipment of last generation, scientists linked to FAPESP Program for Research on Bioenergy (BIOEN) begin to decipher genome of sugar cane. Read the news Pontapé inicial (Authorship: Agência FAPESP).
Signal transduction - related responses to phytohormones and environmental challenges in sugarcane
Flávia Riso Rocha, Flávia Stal Papini-Terzi, Milton Yutaka Nishiyama-Jr, Ricardo Zorzetto Nicoliello Vêncio, Renato Vicentini, Rodrigo Drummond Couto Duarte, Vicente Eugenio de Rosa Jr, Fabiano Vinagre da Silva, Carla Barsalobres, Ane Hackbart de Medeiros, Fabiana Aparecida Rodrigues, Eugênio César Ulian, Sônia Marli Zingaretti di Mauro, Raul Santin Almeida, Antonio Vargas de Oliveira Figueira, Adriana Silva Hemerly, Marcio de Castro Silva Filho, Marcelo Menossi and Gláucia Mendes Souza*
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Sugarcane is an increasingly economically and environmentally important C4 grass, used for the production of sugar and bioethanol, a low-carbon emission fuel. Sugarcane originated from crosses of Saccharum species and is noted for its unique capacity to accumulate high amounts of sucrose in its stems. Environmental stresses limit enormously sugarcane productivity worldwide. To investigate transcriptome changes in response to environmental inputs that alter yield we used cDNA microarrays to profile expression of 1,545 genes in plants submitted to drought, phosphate starvation, herbivory and N2-fixing endophytic bacteria. We also investigated the response to phytohormones (abscisic acid and methyl jasmonate). The arrayed elements correspond mostly to genes involved in signal transduction, hormone biosynthesis, transcription factors, novel genes and genes corresponding to unknown proteins.