Identification and expression profile analysis of the sucrose phosphate synthase gene family inLitchi chinensisSonn.

• DOI: 10.7717/peerj.4379
• Publication Date: 2018-02-15T09:17:59Z
• Authors: Dan Wang; Jietang Zhao; Bing Hu; Jiaqi Li; Yaqi Qin; Linhuan Chen; Yonghua Qin; Guibing Hu
• Keywords: Aril; Sucrose-phosphate synthase; Functional divergence

Sucrose phosphate synthase (SPS, EC 2.4.1.14) is a key enzyme that regulates sucrose biosynthesis in plants. SPS encoded by different gene families which display differential expression patterns and functional divergence. Genome-wide identification analyses of have been performed Arabidopsis, rice, sugarcane, but comprehensive analysis the family Litchi chinensis Sonn. has not yet reported. In current study, four ( LcSPS1 , LcSPS2 LcSPS3 LcSPS4 ) were isolated from litchi. The genomic organization indicated litchi genes very similar exon-intron structures. Phylogenetic tree showed - 4 grouped into A family, B C family). strongly expressed flowers, while most mature leaves. RT-qPCR results LcSPS differentially during aril development between cultivars with hexose/sucrose ratios. higher level was detected Wuheli, accumulates at mature. tissue- developmental stage-specific uncovered this study increase our understanding important roles played these fruits.