Temporal patterns of gene expression associated with tuberous root formation and development in sweetpotato (Ipomoea batatas)

• DOI: 10.1186/s12870-015-0567-5
• Publication Date: 2015-07-14T23:49:54Z
• Authors: Zhangying Wang; Boping Fang; Xinliang Chen; Minghuan Liao; Jingyi Chen; Xiongjian Zhang; Lifei Huang; Zhongxia Luo; Zhufang Yao; Yujun Li
• Keywords: KEGG; Ipomoea

The tuberous root of sweetpotato is undisputedly an important organ from agronomic and biological perspectives. Little known regarding the regulatory networks programming formation development. Here, as a first step toward understanding these networks, we analyzed characterized genome-wide transcriptional profiling dynamics in seven distinct developmental stages using customized microarray containing 39,724 genes. Analysis genes identified temporal programs gene expression, including hundreds transcription factor (TF) We found that most active roots were shared across all stages, although significant quantitative changes abundance observed for 5,368 (including 435 TFs) Clustering analysis differentially expressed pointed out six expression patterns during Gene Ontology (GO) Kyoto Encyclopedia Genes Genomes (KEGG) enrichment revealed involved different processes enriched at specific In contrast with large number development, each stage or period development has only small total, 712 27 1,840 115 root-stage root-period specific, respectively level microarray. Several TF are regulators DA1-related protein, SHORT-ROOT BEL1-like. remaining TFs unknown roles would also play critical results generated this study provided spatiotemporal support future efforts underlying molecular mechanism control yield quality.