Calculating the most likely intron splicing orders in S. pombe, fruit fly, Arabidopsis thaliana, and humans

Abstract Background Introns have been shown to be spliced in a defined order, and this order influences both alternative splicing regulation and splicing fidelity, but previous studies have only considered neighbouring introns. The detailed intron splicing order remains unknown. Results In this work...

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Main Author: Meng Li
Format: Article
Language:English
Published: BMC 2020-10-01
Series:BMC Bioinformatics
Subjects:
Online Access:http://link.springer.com/article/10.1186/s12859-020-03818-6
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author Meng Li
author_facet Meng Li
author_sort Meng Li
collection DOAJ
description Abstract Background Introns have been shown to be spliced in a defined order, and this order influences both alternative splicing regulation and splicing fidelity, but previous studies have only considered neighbouring introns. The detailed intron splicing order remains unknown. Results In this work, a method was developed that can calculate the intron splicing orders of all introns in each transcript. A simulation study showed that this method can accurately calculate intron splicing orders. I further applied this method to real S. pombe, fruit fly, Arabidopsis thaliana, and human sequencing datasets and found that intron splicing orders change from gene to gene and that humans contain more not in-order spliced transcripts than S. pombe, fruit fly and Arabidopsis thaliana. In addition, I reconfirmed that the first introns in humans are spliced slower than those in S. pombe, fruit fly, and Arabidopsis thaliana genome-widely. Both the calculated most likely orders and the method developed here are available on the web. Conclusions A novel computational method was developed to calculate the intron splicing orders and applied the method to real sequencing datasets. I obtained intron splicing orders for hundreds or thousands of genes in four organisms. I found humans contain more number of not in-order spliced transcripts.
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spelling doaj.art-985ce505ea0643d38fa33894a07cb3312022-12-22T01:53:59ZengBMCBMC Bioinformatics1471-21052020-10-0121111510.1186/s12859-020-03818-6Calculating the most likely intron splicing orders in S. pombe, fruit fly, Arabidopsis thaliana, and humansMeng Li0CAS-MPG Partner Institute for Computational Biology, Shanghai Institutes for Biological Sciences, Chinese Academy of SciencesAbstract Background Introns have been shown to be spliced in a defined order, and this order influences both alternative splicing regulation and splicing fidelity, but previous studies have only considered neighbouring introns. The detailed intron splicing order remains unknown. Results In this work, a method was developed that can calculate the intron splicing orders of all introns in each transcript. A simulation study showed that this method can accurately calculate intron splicing orders. I further applied this method to real S. pombe, fruit fly, Arabidopsis thaliana, and human sequencing datasets and found that intron splicing orders change from gene to gene and that humans contain more not in-order spliced transcripts than S. pombe, fruit fly and Arabidopsis thaliana. In addition, I reconfirmed that the first introns in humans are spliced slower than those in S. pombe, fruit fly, and Arabidopsis thaliana genome-widely. Both the calculated most likely orders and the method developed here are available on the web. Conclusions A novel computational method was developed to calculate the intron splicing orders and applied the method to real sequencing datasets. I obtained intron splicing orders for hundreds or thousands of genes in four organisms. I found humans contain more number of not in-order spliced transcripts.http://link.springer.com/article/10.1186/s12859-020-03818-6SplicingIntron splicing orderMost likely orderBayesian network
spellingShingle Meng Li
Calculating the most likely intron splicing orders in S. pombe, fruit fly, Arabidopsis thaliana, and humans
BMC Bioinformatics
Splicing
Intron splicing order
Most likely order
Bayesian network
title Calculating the most likely intron splicing orders in S. pombe, fruit fly, Arabidopsis thaliana, and humans
title_full Calculating the most likely intron splicing orders in S. pombe, fruit fly, Arabidopsis thaliana, and humans
title_fullStr Calculating the most likely intron splicing orders in S. pombe, fruit fly, Arabidopsis thaliana, and humans
title_full_unstemmed Calculating the most likely intron splicing orders in S. pombe, fruit fly, Arabidopsis thaliana, and humans
title_short Calculating the most likely intron splicing orders in S. pombe, fruit fly, Arabidopsis thaliana, and humans
title_sort calculating the most likely intron splicing orders in s pombe fruit fly arabidopsis thaliana and humans
topic Splicing
Intron splicing order
Most likely order
Bayesian network
url http://link.springer.com/article/10.1186/s12859-020-03818-6
work_keys_str_mv AT mengli calculatingthemostlikelyintronsplicingordersinspombefruitflyarabidopsisthalianaandhumans