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Annotation depth confounds direct comparison of gene expression across species
BACKGROUND: Comparisons of the molecular framework among organisms can be done on both structural and functional levels. One of the most common top-down approaches for functional comparisons is RNA sequencing. This estimation of organismal transcriptional responses is of interest for understanding e...
Autores principales: | , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
BioMed Central
2021
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8518172/ https://www.ncbi.nlm.nih.gov/pubmed/34654362 http://dx.doi.org/10.1186/s12859-021-04414-y |
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author | Oziolor, Elias Arat, Seda Martin, Matthew |
author_facet | Oziolor, Elias Arat, Seda Martin, Matthew |
author_sort | Oziolor, Elias |
collection | PubMed |
description | BACKGROUND: Comparisons of the molecular framework among organisms can be done on both structural and functional levels. One of the most common top-down approaches for functional comparisons is RNA sequencing. This estimation of organismal transcriptional responses is of interest for understanding evolution of molecular activity, which is used for answering a diversity of questions ranging from basic biology to pre-clinical species selection and translation. However, direct comparison between species is often hindered by evolutionary divergence in structure of molecular framework, as well as large difference in the depth of our understanding of the genetic background between humans and other species. Here, we focus on the latter. We attempt to understand how differences in transcriptome annotation affect direct gene abundance comparisons between species. RESULTS: We examine and suggest some straightforward approaches for direct comparison given the current available tools and using a sample dataset from human, cynomolgus monkey, dog, rat and mouse with a common quantitation and normalization approach. In addition, we examine how variation in genome annotation depth and quality across species may affect these direct comparisons. CONCLUSIONS: Our findings suggest that further efforts for better genome annotation or computational normalization tools may be of strong interest. SUPPLEMENTARY INFORMATION: The online version contains supplementary material available at 10.1186/s12859-021-04414-y. |
format | Online Article Text |
id | pubmed-8518172 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | BioMed Central |
record_format | MEDLINE/PubMed |
spelling | pubmed-85181722021-10-20 Annotation depth confounds direct comparison of gene expression across species Oziolor, Elias Arat, Seda Martin, Matthew BMC Bioinformatics Methodology Article BACKGROUND: Comparisons of the molecular framework among organisms can be done on both structural and functional levels. One of the most common top-down approaches for functional comparisons is RNA sequencing. This estimation of organismal transcriptional responses is of interest for understanding evolution of molecular activity, which is used for answering a diversity of questions ranging from basic biology to pre-clinical species selection and translation. However, direct comparison between species is often hindered by evolutionary divergence in structure of molecular framework, as well as large difference in the depth of our understanding of the genetic background between humans and other species. Here, we focus on the latter. We attempt to understand how differences in transcriptome annotation affect direct gene abundance comparisons between species. RESULTS: We examine and suggest some straightforward approaches for direct comparison given the current available tools and using a sample dataset from human, cynomolgus monkey, dog, rat and mouse with a common quantitation and normalization approach. In addition, we examine how variation in genome annotation depth and quality across species may affect these direct comparisons. CONCLUSIONS: Our findings suggest that further efforts for better genome annotation or computational normalization tools may be of strong interest. SUPPLEMENTARY INFORMATION: The online version contains supplementary material available at 10.1186/s12859-021-04414-y. BioMed Central 2021-10-15 /pmc/articles/PMC8518172/ /pubmed/34654362 http://dx.doi.org/10.1186/s12859-021-04414-y Text en © The Author(s) 2021 https://creativecommons.org/licenses/by/4.0/Open AccessThis article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) . The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/ (https://creativecommons.org/publicdomain/zero/1.0/) ) applies to the data made available in this article, unless otherwise stated in a credit line to the data. |
spellingShingle | Methodology Article Oziolor, Elias Arat, Seda Martin, Matthew Annotation depth confounds direct comparison of gene expression across species |
title | Annotation depth confounds direct comparison of gene expression across species |
title_full | Annotation depth confounds direct comparison of gene expression across species |
title_fullStr | Annotation depth confounds direct comparison of gene expression across species |
title_full_unstemmed | Annotation depth confounds direct comparison of gene expression across species |
title_short | Annotation depth confounds direct comparison of gene expression across species |
title_sort | annotation depth confounds direct comparison of gene expression across species |
topic | Methodology Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8518172/ https://www.ncbi.nlm.nih.gov/pubmed/34654362 http://dx.doi.org/10.1186/s12859-021-04414-y |
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