AI Article Synopsis
- GRAS proteins are key transcription factors that regulate plant growth, development, and stress responses, but information on their role in tea plants is limited.
- This study identified 52 CsGRAS genes in the tea plant genome, classifying them into 13 subgroups based on phylogenetic analysis and revealing conserved gene structures within these subgroups.
- Analysis of gene expression showed variability in CsGRAS genes among tea cultivars and highlighted their specific expression patterns under stress conditions and during developmental stages, indicating their multiple functions.
Article Abstract
GRAS proteins are important transcription factors that play multifarious roles in regulating the growth and development as well as stress responses of plants. Tea plant is an economically important leaf -type beverage crop. Information concerning GRAS family transcription factors in tea plant is insufficient. In this study, 52 CsGRAS genes encoding GRAS proteins were identified from tea plant genome database. Phylogenetic analysis of the identified GRAS proteins from tea plant, Arabidopsis, and rice divided these proteins into at least 13 subgroups. Conserved motif analysis revealed that the gene structure and motif compositions of the proteins were considerably conserved among the same subgroup. Functional divergence analysis indicated that the shifted evolutionary rate might act as a major evolutionary force driving subfamily-specific functional diversification. Transcriptome analysis showed that the transcriptional levels of CsGRAS genes under non-stress conditions varied among different tea plant cultivars. qRT-PCR analysis revealed tissue and development stage-specific expression patterns of CsGRAS genes in tea plant. The expression patterns of CsGRAS genes in response to abiotic stresses and gibberellin treatment suggested the possible multiple functions of these genes. This study provides insights into the potential functions of GRAS genes.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5834537 | PMC |
| http://dx.doi.org/10.1038/s41598-018-22275-z | DOI Listing |
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