NDLI: Computational Identification and Systematic Classification of Novel Cytochrome P450 Genes in Salvia miltiorrhiza

Content Provider	PubMed Central
Author	Chen, Haimei Wu, Bin Nelson, David R. Wu, Kai Liu, Chang
Editor	Jain, Mukesh
Copyright Year	2014
Abstract	Salvia miltiorrhiza is one of the most economically important medicinal plants. Cytochrome P450 (CYP450) genes have been implicated in the biosynthesis of its active components. However, only a dozen full-length CYP450 genes have been described, and there is no systematic classification of CYP450 genes in S. miltiorrhiza. We obtained 77,549 unigenes from three tissue types of S. miltiorrhiza using RNA-Seq technology. Combining our data with previously identified CYP450 sequences and scanning with the CYP450 model from Pfam resulted in the identification of 116 full-length and 135 partial-length CYP450 genes. The 116 genes were classified into 9 clans and 38 families using standard criteria. The RNA-Seq results showed that 35 CYP450 genes were co-expressed with CYP76AH1, a marker gene for tanshinone biosynthesis, using r≥0.9 as a cutoff. The expression profiles for 16 of 19 randomly selected CYP450 obtained from RNA-Seq were validated by qRT-PCR. Comparing against the KEGG database, 10 CYP450 genes were found to be associated with diterpenoid biosynthesis. Considering all the evidence, 3 CYP450 genes were identified to be potentially involved in terpenoid biosynthesis. Moreover, we found that 15 CYP450 genes were possibly regulated by antisense transcripts (r≥0.9 or r≤–0.9). Lastly, a web resource (SMCYP450, http://www.herbalgenomics.org/samicyp450) was set up, which allows users to browse, search, retrieve and compare CYP450 genes and can serve as a centralized resource.
Related Links	http://dx.doi.org/10.1371/journal.pone.0115149
Starting Page	115149
File Format	PDF
ISSN	19326203
e-ISSN	19326203
Journal	PLoS ONE
Issue Number	12
Volume Number	9
Language	English
Publisher	Public Library of Science
Publisher Date	2014-12-01
Access Restriction	Open
Rights Holder	Public Library of Science
Subject Keyword	Biochemistry, Genetics and Molecular Biology(all) Agricultural and Biological Sciences(all) Medicine(all) Research in Higher Education
Content Type	Text
Resource Type	Article
Subject	Multidisciplinary

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