RRC ID 30958
Author Reuscher S, Akiyama M, Yasuda T, Makino H, Aoki K, Shibata D, Shiratake K.
Title The sugar transporter inventory of tomato: genome-wide identification and expression analysis.
Journal Plant Cell Physiol.
Abstract The mobility of sugars between source and sink tissues in plants depends on sugar transport proteins. Studying the corresponding genes allows the manipulation of the sink strength of developing fruits, thereby improving fruit quality for human consumption. Tomato (Solanum lycopersicum) is both a major horticultural crop and a model for the development of fleshy fruits. In this article we provide a comprehensive inventory of tomato sugar transporters, including the SUCROSE TRANSPORTER family, the SUGAR TRANSPORTER PROTEIN family, the SUGAR FACILITATOR PROTEIN family, the POLYOL/MONOSACCHARIDE TRANSPORTER family, the INOSITOL TRANSPORTER family, the PLASTIDIC GLUCOSE TRANSLOCATOR family, the TONOPLAST MONOSACCHARIDE TRANSPORTER family and the VACUOLAR GLUCOSE TRANSPORTER family. Expressed sequence tag (EST) sequencing and phylogenetic analyses established a nomenclature for all analyzed tomato sugar transporters. In total we identified 52 genes in tomato putatively encoding sugar transporters. The expression of 29 sugar transporter genes in vegetative tissues and during fruit development was analyzed. Several sugar transporter genes were expressed in a tissue- or developmental stage-specific manner. This information will be helpful to better understand source to sink movement of photoassimilates in tomato. Identification of fruit-specific sugar transporters might be a first step to find novel genes contributing to tomato fruit sugar accumulation.
Volume 55(6)
Pages 1123-41
Published 2014-6
DOI 10.1093/pcp/pcu052
PII pcp/pcu052
PMID 24833026
MeSH Base Sequence Biological Transport Carbohydrate Metabolism Expressed Sequence Tags Fruit / genetics Fruit / growth & development Fruit / metabolism Gene Expression Profiling Gene Expression Regulation, Plant* Genome, Plant / genetics* Lycopersicon esculentum / genetics* Lycopersicon esculentum / growth & development Lycopersicon esculentum / metabolism Membrane Transport Proteins / genetics* Membrane Transport Proteins / metabolism Molecular Sequence Data Multigene Family Phylogeny Plant Proteins / genetics Plant Proteins / metabolism Sequence Analysis, DNA
IF 3.929
Times Cited 14