Identificação de sequências homólogas de aquaporinas no genoma de aveia cultivar Barbarasul

• Ano de defesa: 2011
• Autor(a) principal: Silveira, Carla Ferreira
• Orientador(a): Oliveira, Antônio Costa de
• Tipo de documento: Dissertação
• Tipo de acesso: Acesso aberto
• Idioma: por
• Instituição de defesa: Universidade Federal de Pelotas
• Programa de Pós-Graduação: Programa de Pós-Graduação em Biotecnologia
• Departamento: Biotecnologia
• País: BR
• Palavras-chave em Português: Biotecnologia; Avena sativa; Água; Pós-genômica; Genômica comparativa; Aveia
• Palavras-chave em Inglês: Biotechnology; Avena sativa; Water; Post-genomic; Comparative genomic; Oats
• Área do conhecimento CNPq: CNPQ::CIENCIAS BIOLOGICAS::GENETICA::GENETICA VEGETAL
• Link de acesso: http://repositorio.ufpel.edu.br/handle/ri/1294

Oats (Avena sativa L.) are a winter cereal used for both humans and livestock, giving a great importance on the world stage. In the post-genomic era new sequenced genomes can be used to derive functions of organisms from the knowledge of these systems. In this work were apply this approach to the analysis of gene family of aquaporins in oats. The aquaporins are major intrinsic proteins (MIP) that have been characterized as facilitating the water flow. They are also known as water channels, glycerol facilitators and aquaglyceroporins, recent data suggest that they facilitate the movement of other molecular low weight metabolites. The presence of these genes is importance for the development and adaptation of plants, however, until now there are not studies reporting the identification of aquaporins in the oat genome. In this report we identified two sequences identified as potential aquaporins present in the genome of oat. Considering the number of aquaporin genes present in genome of rice, Arabidopsis, maize and wheat and the complexity of its polyploid genome, it is estimated that oats may have around 20 or more copies of these genes in each genome. Given the growing problems of flooding and drought, the need for cultivation in areas affected by salinity and the proven role of MIPs on plant response to stresses related to water availability, the investigations of these genes are essential in oats too. However a greater number of these genes can be identified in the future, this study was an important step in its characterization.