Genome-wide analysis and expression profiling of the PIN auxin transporter gene family in soybean (Glycine max)

• DOI: 10.1186/s12864-015-2149-1
• Publication Date: 2015-11-16T06:36:39Z
• Authors: Yongqin Wang; Chenglin Chai; Babu Valliyodan; Christine Maupin; Brad Annen; Henry T. Nguyen
• Keywords: 0301 basic medicine; 2. Zero hunger; Indoleacetic Acids; Glycine max; Gene Expression Profiling; Genomics; Plant Roots; Chromosomes, Plant; Droughts; 03 medical and health sciences; Organ Specificity; Stress, Physiological; Genetics; Salts; Promoter Regions, Genetic; Phylogeny; Biotechnology; Research Article; Abscisic Acid; Plant Proteins

The plant phytohormone auxin controls many aspects of growth and development, which largely depends on its uneven distribution in tissues. Transmembrane proteins the PIN family are efflux facilitators. They play a key role polar transport associated with asymmetrical plants. genes have been characterized several species, while comprehensive analysis this gene soybean has not reported yet.In study, twenty-three members were identified genome through homology searches. Analysis chromosome phylogenetic relationships indicated nine pairs duplicated legume specific subfamily. Organ/tissue expression patterns promoter activity assays PINs suggested redundant functions for most complementary tissue-specific during development non-duplicated genes. differentially regulated by various abiotic stresses stimuli, implying crosstalk between stress signaling pathways. This was further supported altered under these conditions as revealed DR5::GUS transgenic hairy root. Our data indicates that GmPIN9, legume-specific gene, responsive to stresses, might re-distribution root conditions.This study provided first family. Information relationships, structure, protein profiles different tissues treatments helps identity candidates potential roles developmental processes and/or environmental conditions. advances our understanding responses serves basis uncovering biological adaption adverse environments.