| Genome-wide identification and evolutionary analysis of the plant specific SBP-box transcription factor family. | |
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MedLine Citation:
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PMID: 18495384 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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We made genome-wide analyses to explore the evolutionary process of the SBP-box gene family. We identified 120 SBP-box genes from nine species representing the main green plant lineages: green alga, moss, lycophyte, gymnosperm and angiosperm. A maximum-likelihood phylogenetic tree was constructed using the protein sequences of the DNA-binding domain of SBP-box genes (SBP-domain). Our results revealed that all SBP-box genes of green alga clustered into a single clade (CR group), while all genes from land-plants fell into two distinct groups. Group I had a single copy in each species except for poplar while group II had several members in each species and can be divided into several subgroups. The SBP-domain encoded by all SBP-box genes possesses two zinc fingers. The C-terminal zinc finger of both group I and group II had the same C2HC motif while their N-terminal zinc finger showed different signatures, C4 in group I and C3H in group II. The patterns of exon-intron structure in Arabidopsis and rice SBP-box genes were consistent with the phylogenetic results. A target site of microRNA miR156 was highly conserved among land-plant SBP-box genes. Our results suggested that the SBP-box gene family might have originated from a common ancestor of green plants, followed by duplication and divergence in each lineage including exon-intron loss processes. |
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Authors:
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An-Yuan Guo; Qi-Hui Zhu; Xiaocheng Gu; Song Ge; Ji Yang; Jingchu Luo |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't Date: 2008-04-09 |
Journal Detail:
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Title: Gene Volume: 418 ISSN: 0378-1119 ISO Abbreviation: Gene Publication Date: 2008 Jul |
Date Detail:
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Created Date: 2008-06-16 Completed Date: 2008-08-15 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 7706761 Medline TA: Gene Country: Netherlands |
Other Details:
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Languages: eng Pagination: 1-8 Citation Subset: IM |
Affiliation:
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College of Life Sciences, Center for Bioinformatics, National Laboratory of Protein Engineering and Plant Genetic Engineering, Peking University, Beijing, 100871, China. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Binding Sites Conserved Sequence Evolution, Molecular* Genes, Plant* Genome, Plant* MicroRNAs / analysis* Multigene Family* Phylogeny Transcription Factors* Zinc Fingers |
| Chemical | |
Reg. No./Substance:
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0/MicroRNAs; 0/Transcription Factors |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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