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Transcriptome analysis of candidate genes and signaling pathways associated with light-induced brown film formation in Lentinula edodes
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Transcriptome analysis of candidate genes and signaling pathways associated with light-induced brown film formation in Lentinula edodes
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Journal Article
Transcriptome analysis of candidate genes and signaling pathways associated with light-induced brown film formation in Lentinula edodes
2013
Overview
High-throughput Illumina RNA-seq was used for deep sequencing analysis of the transcriptome of poly(A)+ RNA from mycelium grown under three different conditions: 30 days darkness (sample 118), 80 days darkness (313W), and 30 days darkness followed by 50 days in the light (313C), in order to gain insight into the molecular mechanisms underlying the process of light-induced brown film (BF) formation in the edible mushroom,
Lentinula edodes
. Of the three growth conditions, BF formation occurred in 313C samples only. Approximately 159.23 million reads were obtained, trimmed, and de novo assembled into 31,511 contigs with an average length of 1,746 bp and an
N
50
of 2,480 bp. Based on sequence orientations determined by a BLASTX search against the NR, Swiss-Prot, COG, and KEGG databases, 24,246 (76.9 %) contigs were assigned putative descriptions. Comparison of 313C/118 and 313C/313W expression profiles revealed 3,958 and 5,651 significantly differentially expressed contigs (DECs), respectively. Annotation using the COG database revealed that candidate genes for light-induced BF formation encoded proteins linked to light reception (e.g., WC-1, WC-2, phytochrome), light signal transduction pathways (e.g., two-component phosphorelay system, mitogen-activated protein kinase pathway), and pigment formation (e.g., polyketide synthase,
O
-methyltransferase, laccase, P
450
monooxygenase, oxidoreductase). Several DECs were validated using quantitative real-time polymerase chain reaction. Our report is the first to identify genes associated with light-induced BF formation in
L. edodes
and represents a valuable resource for future genomic studies on this commercially important mushroom.
Publisher
Springer-Verlag,Springer,Springer Nature B.V
Subject
/ Biomedical and Life Sciences
/ Darkness
/ Fungi
/ Genes
/ genetics
/ Genomes
/ Genomics
/ High-Throughput Nucleotide Sequencing
/ Kinases
/ laccase
/ Light
/ Microbial Genetics and Genomics
/ mitogen-activated protein kinase
/ Mitogens
/ mycelium
/ Oxidases
/ Pigments, Biological - biosynthesis
/ Proteins
/ RNA
/ Shiitake Mushrooms - genetics
/ Shiitake Mushrooms - metabolism
/ Shiitake Mushrooms - radiation effects
/ Software
/ Studies
