ArticlePLoS genetics2024
Co-transcriptional splicing facilitates transcription of gigantic genes.
Article in PLoS genetics, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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Who cites it
7 citing papers in PubMed.
- Interpretable machine learning enables de novo mapping of cell type-specific RNA splicing regulation from scRNA-seq data.Nature communications · 2026Article
- Fertility Gene Introns Harbor Transposable Elements that Shape Y-Loop Architecture.bioRxiv : the preprint server for biology · 2026Article
- Defective splicing of Y-chromosome-linked gigantic genes contributes to hybrid male sterility in Drosophila.Molecular biology and evolution · 2026Article
- Strong bias in long-read sequencing prevents assembly ofGenome research · 2026Article
- Male sterility in Drosophila mojavensis × D. arizonae hybrids is not caused by gene movements in the Y chromosome.Evolution; international journal of organic evolution · 2025Article
- The first chicken oocyte nucleus whole transcriptomic profile defines the spectrum of maternal mRNA and non-coding RNA genes transcribed by the lampbrush chromosomes.Nucleic acids research · 2024Article
- A germline PAF1 paralog complex ensures cell type-specific gene expression.Genes & development · 2024Article
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5 authors.
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Abstract
Although introns are typically tens to thousands of nucleotides, there are notable exceptions. In flies as well as humans, a small number of genes contain introns that are more than 1000 times larger than typical introns, exceeding hundreds of kilobases (kb) to megabases (Mb). It remains unknown why gigantic introns exist and how cells overcome the challenges associated with their transcription and RNA processing. The Drosophila Y chromosome contains some of the largest genes identified to date: multiple genes exceed 4Mb, with introns accounting for over 99% of the gene span. Here we demonstrate that co-transcriptional splicing of these gigantic Y-linked genes is important to ensure successful transcription: perturbation of splicing led to the attenuation of transcription, leading to a failure to produce mature mRNA. Cytologically, defective splicing of the Y-linked gigantic genes resulted in disorganization of transcripts within the nucleus suggestive of entanglement of transcripts, likely resulting from unspliced long RNAs. We propose that co-transcriptional splicing maintains the length of nascent transcripts of gigantic genes under a critical threshold, preventing their entanglement and ensuring proper gene expression. Our study reveals a novel biological significance of co-transcriptional splicing.
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