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De novo transcriptome analysis deciphered polyoxypregnane glycoside biosynthesis pathway in Gymnema sylvestre

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Title De novo transcriptome analysis deciphered polyoxypregnane glycoside biosynthesis pathway in Gymnema sylvestre
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Creator Kuldeepsingh A. Kalariya · Dipal B. Minipara · Ponnuchamy Manivel
 
Subject Gymnema sylvestre · Next generation sequencing · Pregnane glycosides · RNA sequencing
 
Description Not Available
Gymnema sylvestre is an important medicinal plant containing antidiabetic activity. Through de novo transcriptomic study,
the pathways of polyoxypregnane glycosides were explored and candidate genes of these pathways were identified in G.
sylvestre. High-quality raw reads were assembled into transcripts which resulted in 193,615 unigenes. These unigenes further
decoded 58,274 coding DNA sequences (CDSs). Functional annotation of predicted CDSs was carried out using the protein
databases, i.e., NCBI’s non-redundant, Uniprot and Pfam. Eukaryotic orthologous group (KOG) classification and transcription
factor analysis has revealed most CDS-enriched categories as “Signal transduction mechanism” and “Basic Helix loop
helix” (bHLH) transcription factor family, respectively. A total of 16,569 CDSs were assigned minimum one Gene Ontology
(GO) term. Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway analysis disclosed 235 CDSs which represented
total 27 genes of pregnane glycoside pathways and 19 CDSs represented 10 important enzymes of polyoxypregnane glycoside
biosynthesis, i.e., sterol 24-C-methyltransferase, cycloeucalenol cycloisomerase, Δ14-sterol reductase, C-8,7 sterol isomerase,
sterol methyltransferase 2, C-5 sterol desaturase, sterol Δ7 reductase, Δ24 sterol reductase, 3β-hydroxysteroid dehydrogenase
and progesterone 5β reductase (5βPOR). This transcriptome analysis provided an important resource for future functional
genomic studies in G. sylvestre.
GSBTM, GUJARAT
 
Date 2020-08-05T12:04:31Z
2020-08-05T12:04:31Z
2018-08-21
 
Type Research Paper
 
Identifier Not Available
Not Available
http://krishi.icar.gov.in/jspui/handle/123456789/38959
 
Language English
 
Relation Not Available;
 
Publisher Springer Nature