Genome-Wide Analysis of LBD Transcription Factor Genes in Dendrobium catenatum

• Published in: International journal of molecular sciences Vol. 23; no. 4; p. 2089
• Main Authors: Jia, Ru, Li, Cheng, Wang, Yuhua, Qin, Xiangshi, Meng, Lihua, Sun, Xudong
• Format: Journal Article
• Language: English
• Published: Switzerland MDPI AG 14-02-2022; MDPI
• Subjects: Amino Acid Sequence; Amino acids; Cell differentiation; Cell proliferation; Dendrobium - genetics; Dendrobium catenatum; Domains; expression profiles; Flowers & plants; Gene expression; Gene Expression Regulation, Plant - genetics; Gene mapping; Genes; Genome-Wide Association Study - methods; Genomes; Hypotheses; LBD transcription factor family; Localization; Multigene Family - genetics; Organs; phylogenetic analysis; Phylogenetics; Phylogeny; phytohormone response; Plant Growth Regulators - genetics; Plant Proteins - genetics; Proteins; Sequence Alignment; Signal transduction; Transcription factors; Transcription Factors - genetics; phytohormone response; Dendrobium catenatum; phylogenetic analysis; LBD transcription factor family; expression profiles
• ISSN: 1422-0067; 1661-6596; 1422-0067
• DOI: 10.3390/ijms23042089

The
gene family comprises plant-specific transcription factors that control cell proliferation and differentiation during growth and development in many plant species. However, to date, no studies of the LBD gene family in
have been reported. In this study, a genome-wide analysis of LBD genes was performed in
and 24
genes were identified. The genes were classified into two classes (I and II) based on phylogenetic relationships and motif structure. Subcellular localization analysis for DcaLBD6 and DcaLBD18 from class I and DcaLBD37 and DcaLBD41 from class II revealed that the proteins were localized in the nucleus. Transient expression analysis of DcaLBD6, DcaLBD18, DcaLBD37, and DcaLBD41 indicated that class I and class II members have opposite roles in regulating
(
) expression.
genes showed diverse expression patterns in response to different phytohormone treatments. Heat maps revealed diverse patterns of
gene expression in different organs. These results lay the foundation for further detailed studies of the
gene family in
.