TY - JOUR A1 - Silva, Manassés Daniel da A1 - Oliveira Silva, Roberta Lane de A1 - Ferreira Neto, José Ribamar Costa A1 - Ribeiro Guimarães, Ana Carolina A1 - Truffi Veiga, Daniela A1 - Moutinho Chabregas, Sabrina A1 - Burnquist, William Lee A1 - Kahl, Günter A1 - Benko-Iseppon, Ana Maria A1 - Kido, Ederson Akio T1 - Expression analysis of sugarcane aquaporin genes under water deficit T2 - Journal of Nucleic Acids N2 - The present work is a pioneer study specifically addressing the aquaporin transcripts in sugarcane transcriptomes. Representatives of the four aquaporin subfamilies (PIP, TIP, SIP, and NIP), already described for higher plants, were identified. Forty-two distinct aquaporin isoforms were expressed in four HT-SuperSAGE libraries from sugarcane roots of drought-tolerant and -sensitive genotypes, respectively. At least 10 different potential aquaporin isoform targets and their respective unitags were considered to be promising for future studies and especially for the development of molecular markers for plant breeding. From those 10 isoforms, four (SoPIP2-4, SoPIP2-6, OsPIP2-4, and SsPIP1-1) showed distinct responses towards drought, with divergent expressions between the bulks from tolerant and sensitive genotypes, when they were compared under normal and stress conditions. Two targets (SsPIP1-1 and SoPIP1-3/PIP1-4) were selected for validation via RT-qPCR and their expression patterns as detected by HT-SuperSAGE were confirmed. The employed validation strategy revealed that different genotypes share the same tolerant or sensitive phenotype, respectively, but may use different routes for stress acclimation, indicating the aquaporin transcription in sugarcane to be potentially genotype-specific. Y1 - 2013 UR - http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/32964 UR - https://nbn-resolving.org/urn:nbn:de:hebis:30:3-329648 SN - 2090-021X SN - 2090-0201 N1 - Copyright © 2013 Manassés Daniel da Silva et al. This is an open access article distributed under the Creative Commons Attribution License http://creativecommons.org/licenses/by/3.0/ , which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. VL - 2013 IS - Article ID 763945 SP - 1 EP - 14 PB - Hindawi CY - New York, NY ER -