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Main Authors: DeMontigny, Wesley, Bachvaroff, Tsvetan
Format: Artículo científico
Language:en
Published: G3 (Bethesda, Md.) 2025
Subjects:
Online Access:https://pubmed.ncbi.nlm.nih.gov/39950409/
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author DeMontigny, Wesley
Bachvaroff, Tsvetan
author_facet DeMontigny, Wesley
Bachvaroff, Tsvetan
DeMontigny, Wesley
Bachvaroff, Tsvetan
collection PubMed - marine biology
contents The nuclear and mitochondrial genomes of amoebophrya sp. ex Karlodinium veneficum. DeMontigny, Wesley Bachvaroff, Tsvetan Genome, Mitochondrial Dinoflagellida Cell Nucleus Phylogeny Genome, Protozoan Genomics Open Reading Frames Molecular Sequence Annotation Codon, Terminator RNA, Transfer Dinoflagellates are a diverse group of microplankton that include free-living, symbiotic, and parasitic species. Amoebophrya, a basal lineage of parasitic dinoflagellates, infects a variety of marine microorganisms, including harmful-bloom-forming algae. Although there are currently 3 published Amoebophrya genomes, this genus has considerable genomic diversity. We add to the growing genomic data for Amoebophrya with an annotated genome assembly for Amoebophrya sp. ex Karlodinium veneficum. This species appears to translate all 3 canonical stop codons contextually. Stop codons are present in the open reading frames of about half of the predicted gene models, including genes essential for cellular function. The in-frame stop codons are likely translated by suppressor tRNAs that were identified in the assembly. We also assembled the mitochondrial genome, which has remained elusive in the previous Amoebophrya genome assemblies. The mitochondrial genome assembly consists of many fragments with high sequence identity in the genes but low sequence identity in intergenic regions. Nuclear and mitochondrially-encoded proteins indicate that Amoebophrya sp. ex K. veneficum does not have a bipartite electron transport chain, unlike previously analyzed Amoebophrya species. This study highlights the importance of analyzing multiple genomes from highly diverse genera such as Amoebophrya.
format Artículo científico
id pubmed_39950409
institution PubMed
language en
publishDate 2025
publisher G3 (Bethesda, Md.)
record_format pubmed
spellingShingle The nuclear and mitochondrial genomes of amoebophrya sp. ex Karlodinium veneficum.
DeMontigny, Wesley
Bachvaroff, Tsvetan
Genome, Mitochondrial
Dinoflagellida
Cell Nucleus
Phylogeny
Genome, Protozoan
Genomics
Open Reading Frames
Molecular Sequence Annotation
Codon, Terminator
RNA, Transfer
The nuclear and mitochondrial genomes of amoebophrya sp. ex Karlodinium veneficum. DeMontigny, Wesley Bachvaroff, Tsvetan Genome, Mitochondrial Dinoflagellida Cell Nucleus Phylogeny Genome, Protozoan Genomics Open Reading Frames Molecular Sequence Annotation Codon, Terminator RNA, Transfer Dinoflagellates are a diverse group of microplankton that include free-living, symbiotic, and parasitic species. Amoebophrya, a basal lineage of parasitic dinoflagellates, infects a variety of marine microorganisms, including harmful-bloom-forming algae. Although there are currently 3 published Amoebophrya genomes, this genus has considerable genomic diversity. We add to the growing genomic data for Amoebophrya with an annotated genome assembly for Amoebophrya sp. ex Karlodinium veneficum. This species appears to translate all 3 canonical stop codons contextually. Stop codons are present in the open reading frames of about half of the predicted gene models, including genes essential for cellular function. The in-frame stop codons are likely translated by suppressor tRNAs that were identified in the assembly. We also assembled the mitochondrial genome, which has remained elusive in the previous Amoebophrya genome assemblies. The mitochondrial genome assembly consists of many fragments with high sequence identity in the genes but low sequence identity in intergenic regions. Nuclear and mitochondrially-encoded proteins indicate that Amoebophrya sp. ex K. veneficum does not have a bipartite electron transport chain, unlike previously analyzed Amoebophrya species. This study highlights the importance of analyzing multiple genomes from highly diverse genera such as Amoebophrya.
title The nuclear and mitochondrial genomes of amoebophrya sp. ex Karlodinium veneficum.
topic Genome, Mitochondrial
Dinoflagellida
Cell Nucleus
Phylogeny
Genome, Protozoan
Genomics
Open Reading Frames
Molecular Sequence Annotation
Codon, Terminator
RNA, Transfer
url https://pubmed.ncbi.nlm.nih.gov/39950409/