Transcriptomics

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RNA sequencing reveals diverse and dynamic repertoire of the Xenopus tropicalis transcriptome over development.


ABSTRACT: We report the application of paired-end RNA sequencing for high throughput profiling of the Xenopus transcriptome in 23 distinct developmental stages. In total, we obtained over 900 million reads and the deep coverage allowed us to examine the transcriptome in detail. First, we found that ~150 genes are transcribed before embryonic genome activation when transcription is generally thought to be repressed. Second, we discovered thousands of novel splice junctions, the majority of which modify existing gene structures. Third, we curated a confident set of 6686 non-coding transcripts in 3859 genomic loci. Many of these non-coding RNAs are also developmentally regulated, which suggests that they may play important roles during embryogenesis. Finally, we found hundreds of contigs that cannot be aligned to the reference genome, which indicates that the current genome (XenTro3) is still unfinished. Our results will aid in the full assembly and annotation of the Xenopus tropicalis genome.

ORGANISM(S): Xenopus tropicalis

PROVIDER: GSE37452 | GEO | 2012/05/04

SECONDARY ACCESSION(S): PRJNA160141

REPOSITORIES: GEO

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