Cargando…
Phylogenetic Relationships and Adaptation in Deep-Sea Mussels: Insights from Mitochondrial Genomes
Mitochondrial genomes (mitogenomes) are an excellent source of information for phylogenetic and evolutionary studies, but their application in marine invertebrates is limited. In the present study, we utilized mitogenomes to elucidate the phylogeny and environmental adaptation in deep-sea mussels (M...
Autores principales: | , , , , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2021
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7918742/ https://www.ncbi.nlm.nih.gov/pubmed/33672964 http://dx.doi.org/10.3390/ijms22041900 |
_version_ | 1783657993832759296 |
---|---|
author | Zhang, Kai Sun, Jin Xu, Ting Qiu, Jian-Wen Qian, Pei-Yuan |
author_facet | Zhang, Kai Sun, Jin Xu, Ting Qiu, Jian-Wen Qian, Pei-Yuan |
author_sort | Zhang, Kai |
collection | PubMed |
description | Mitochondrial genomes (mitogenomes) are an excellent source of information for phylogenetic and evolutionary studies, but their application in marine invertebrates is limited. In the present study, we utilized mitogenomes to elucidate the phylogeny and environmental adaptation in deep-sea mussels (Mytilidae: Bathymodiolinae). We sequenced and assembled seven bathymodioline mitogenomes. A phylogenetic analysis integrating the seven newly assembled and six previously reported bathymodioline mitogenomes revealed that these bathymodiolines are divided into three well-supported clades represented by five Gigantidas species, six Bathymodiolus species, and two “Bathymodiolus” species, respectively. A Common interval Rearrangement Explorer (CREx) analysis revealed a gene order rearrangement in bathymodiolines that is distinct from that in other shallow-water mytilids. The CREx analysis also suggested that reversal, transposition, and tandem duplications with subsequent random gene loss (TDRL) may have been responsible for the evolution of mitochondrial gene orders in bathymodiolines. Moreover, a comparison of the mitogenomes of shallow-water and deep-sea mussels revealed that the latter lineage has experienced relaxed purifying selection, but 16 residues of the atp6, nad4, nad2, cob, nad5, and cox2 genes have underwent positive selection. Overall, this study provides new insights into the phylogenetic relationships and mitogenomic adaptations of deep-sea mussels |
format | Online Article Text |
id | pubmed-7918742 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-79187422021-03-02 Phylogenetic Relationships and Adaptation in Deep-Sea Mussels: Insights from Mitochondrial Genomes Zhang, Kai Sun, Jin Xu, Ting Qiu, Jian-Wen Qian, Pei-Yuan Int J Mol Sci Article Mitochondrial genomes (mitogenomes) are an excellent source of information for phylogenetic and evolutionary studies, but their application in marine invertebrates is limited. In the present study, we utilized mitogenomes to elucidate the phylogeny and environmental adaptation in deep-sea mussels (Mytilidae: Bathymodiolinae). We sequenced and assembled seven bathymodioline mitogenomes. A phylogenetic analysis integrating the seven newly assembled and six previously reported bathymodioline mitogenomes revealed that these bathymodiolines are divided into three well-supported clades represented by five Gigantidas species, six Bathymodiolus species, and two “Bathymodiolus” species, respectively. A Common interval Rearrangement Explorer (CREx) analysis revealed a gene order rearrangement in bathymodiolines that is distinct from that in other shallow-water mytilids. The CREx analysis also suggested that reversal, transposition, and tandem duplications with subsequent random gene loss (TDRL) may have been responsible for the evolution of mitochondrial gene orders in bathymodiolines. Moreover, a comparison of the mitogenomes of shallow-water and deep-sea mussels revealed that the latter lineage has experienced relaxed purifying selection, but 16 residues of the atp6, nad4, nad2, cob, nad5, and cox2 genes have underwent positive selection. Overall, this study provides new insights into the phylogenetic relationships and mitogenomic adaptations of deep-sea mussels MDPI 2021-02-14 /pmc/articles/PMC7918742/ /pubmed/33672964 http://dx.doi.org/10.3390/ijms22041900 Text en © 2021 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Zhang, Kai Sun, Jin Xu, Ting Qiu, Jian-Wen Qian, Pei-Yuan Phylogenetic Relationships and Adaptation in Deep-Sea Mussels: Insights from Mitochondrial Genomes |
title | Phylogenetic Relationships and Adaptation in Deep-Sea Mussels: Insights from Mitochondrial Genomes |
title_full | Phylogenetic Relationships and Adaptation in Deep-Sea Mussels: Insights from Mitochondrial Genomes |
title_fullStr | Phylogenetic Relationships and Adaptation in Deep-Sea Mussels: Insights from Mitochondrial Genomes |
title_full_unstemmed | Phylogenetic Relationships and Adaptation in Deep-Sea Mussels: Insights from Mitochondrial Genomes |
title_short | Phylogenetic Relationships and Adaptation in Deep-Sea Mussels: Insights from Mitochondrial Genomes |
title_sort | phylogenetic relationships and adaptation in deep-sea mussels: insights from mitochondrial genomes |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7918742/ https://www.ncbi.nlm.nih.gov/pubmed/33672964 http://dx.doi.org/10.3390/ijms22041900 |
work_keys_str_mv | AT zhangkai phylogeneticrelationshipsandadaptationindeepseamusselsinsightsfrommitochondrialgenomes AT sunjin phylogeneticrelationshipsandadaptationindeepseamusselsinsightsfrommitochondrialgenomes AT xuting phylogeneticrelationshipsandadaptationindeepseamusselsinsightsfrommitochondrialgenomes AT qiujianwen phylogeneticrelationshipsandadaptationindeepseamusselsinsightsfrommitochondrialgenomes AT qianpeiyuan phylogeneticrelationshipsandadaptationindeepseamusselsinsightsfrommitochondrialgenomes |