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Saccharina japonica

ABSTRACT: Identification of microRNAs in response to blue light irridiation by high-throughput sequencing in Saccharina japonica

PROVIDER: PRJNA153567 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR447170.fastq.gz	Fastqsanger.gz
	SRR447171.fastq.gz	Fastqsanger.gz

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Transcriptome sequencing and comparative expression profiling analysis of Saccharina japonica under blue light

Project description:Saccharina japonica is one of the most important marine economic crops worldwide. Blue light usually plays a significant role in the lives of Saccharina that may be beneficial to the culture system. Here we applied high-throughput paired-end RNA-sequencing (RNA-Seq) to the transcriptome of Saccharina japonica with blue light and dark exposure respectively. Comparative analysis of gene expression was conducted to understand the underlying molecular mechanisms. RNA-seq analysis yielded 70,497 non-redundant unigenes. 25,924 unigenes of them had good comparability with known gene sequences in existing species. Based on the values of RPKM, 11,660 differentially expressed unigenes were detected in expression profiles between blue light and dark exposed samples. Our results provide clues to potential genes identification in the species and lay the foundation for future functional genomics study.

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Transcriptome sequencing and comparative expression profiling analysis of Saccharina japonica under blue light

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Identification of microRNAs in response to blue light irridiation by high-throughput sequencing in Saccharina japonica

Project description:Blue light (BL) is an important environmental factor that plays critical role in algae growth and development. Saccharina japonica, as a typical brown alga, showed greatly affected by BL. However, little has been known about the regulation pathway of BL response in algae. microRNAs (miRNAs) participated in great number of life process regulation and may be also involved in the BL response in plants. To identify miRNAs from S. japonica and characterize their probable roles in BL response, we sequenced and compared small RNA libraries under BL irradiation and dark conditions. 20 potential novel miRNAs were identified from S. japonica. Bioinformatics analysis of the miRNAs indicated that their potential targets were involved in various biological processes. Based on differential expression analysis and qRT-PCR experiment, some probable miRNAs related to BL responses were selected for further verification of their function, such as miR398. Our results demonstrated that miRNAs might play vital roles in metabolism of S. japonica, including BL responses.

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