WUS and PIN1-related genes undergo dynamic expressional change during organ regeneration in response to wounding in Zoysia japonica

Molecular Biology Reports
Linkun LiHuiming Zeng

Abstract

Zoysia japonica is a grass specie used for golf courses and stadium lawns because of its eminent organ regeneration ability after cutting. However, the molecular mechanisms of the organ regeneration remain elusive. In plants, the shoot apical meristem (SAM) plays a critical role in organ regeneration process. Studies on shoot apical meristem (SAM) in Arabidopsis revealed PIN-FORMED 1 (PIN1) and WUSCHEL (WUS) as crucial components regulating the maintenance and proliferation of SAM via modulating the phytohormones auxin (IAA) and cytokinin (CTK), respectively. In this study, transcriptome analysis of the early wounding stage of Z. japonica cultivar "Zenith" was performed, and global expression pattern of genes related to the PIN1 and WUS network was analyzed. According to the Gene Ontology (GO) database classification, genes related to cell proliferation were identified in differentially expressed unigenes (DEGs) with dramatic changes. Meanwhile, there were 18 IAA and CTK-related GO terms. The Kyoto Encyclopedia of Genes and Genomes (KEGG) database classification showed that "plant hormone signal transduction" was gradually become the most abundant enrichment pathways within 6 h. Twenty-four Z. japonica genes with homology to Ar...Continue Reading

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Methods Mentioned

BETA
environmental stresses
ELISA
2500 sequencing
PCR
RNA-seq

Software Mentioned

Trinity
IDEG
SPSS
Primer Premier
TGICL

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