ArticleApplied and environmental microbiology2001
Duplication of a truncated paralog of the family B DNA polymerase gene Aa-polB in the Agrocybe aegerita mitochondrial genome.
Article in Applied and environmental microbiology, 2001. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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Who cites it
5 citing papers in PubMed, 9 citations in OpenAlex.
- Mitochondrial Graph-Based Pan-Genome Analysis ofInternational journal of molecular sciences · 2026Article
- Article
- Reprever: resolving low-copy duplicated sequences using template driven assembly.Nucleic acids research · 2013Article
- Strikingly bacteria-like and gene-rich mitochondrial genomes throughout jakobid protists.Genome biology and evolution · 2013Article
- Molecular evolution of a mitochondrial polB gene, encoding a family B DNA polymerase, towards the elimination from Agrocybe mitochondrial genomes.Molecular genetics and genomics : MGG · 2004Article
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Authors and funding
3 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The Agrocybe aegerita mitochondrial genome contains a truncated family B DNA polymerase gene (Aa-polB P1) whose nucleotide sequence is 86% identical to the previously described and potentially functional Aa-polB gene. A tRNA(Met) gene occurs at the 3' end of the Aa-polB P1 gene. The Aa-polB P1 gene could result from reverse transcription of an Aa-polB mRNA primed by a tRNA(Met) followed by the integration of the cDNA after recombination at the mitochondrial tRNA locus. Two naturally occurring alleles of Aa-polB P1 carry one or two copies of the disrupted sequence. In strains with two copies of Aa-polB P1, these copies are inverted relative to one another and separated by a short sequence carrying the tRNA(Met) gene. Both A. aegerita mitochondrial family B DNA polymerases were found to be related to other family B DNA polymerases (36 to 53% amino acid similarity), including the three enzymes of the archaebacterium Sulfolobus solfataricus. If mitochondria originated from a fusion between a Clostridium-like eubacterium and a Sulfolobus-like archaebacterium, then the A. aegerita family B DNA polymerase genes could be remnants of the archaebacterial genes.
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