ArticleBMC genomics2020
Intra-specific comparison of mitochondrial genomes reveals host gene fragment exchange via intron mobility in Tremella fuciformis.
Article in BMC genomics, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
What it found
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Who cites it
8 citing papers in PubMed, 10 citations in OpenAlex.
- Polymorphism and evolutionary origins of accessory chromosomes in the basidiomycete Tremella fuciformis.Nature communications · 2026Article
- Evolutionary insights intoIMA fungus · 2026Article
- Insights into Fungal Mitochondrial Genomes and Inheritance Based on Current Findings from Yeast-like Fungi.Journal of fungi (Basel, Switzerland) · 2024Review
- Uniparental Inheritance and Recombination as Strategies to Avoid Competition and Combat Muller's Ratchet among Mitochondria in Natural Populations of the FungusJournal of fungi (Basel, Switzerland) · 2023Article
- Whole-mitochondrial genomes ofEcology and evolution · 2023Article
- The mitogenomes ofFrontiers in microbiology · 2023Article
- Multiple rearrangements and low inter- and intra-species mitogenome sequence variation in theFrontiers in microbiology · 2023Article
- Organellar Introns in Fungi, Algae, and Plants.Cells · 2021Review
Corrections and comments
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Authors and funding
11 authors at 3 institutions in 3 countries.
Funding
Abstract
backgroundMitochondrial genomic sequences are known to be variable. Comparative analyses of mitochondrial genomes can reveal the nature and extent of their variation.
resultsDraft mitochondrial genomes of 16 Tremella fuciformis isolates (TF01-TF16) were assembled from Illumina and PacBio sequencing data. Mitochondrial DNA contigs were extracted and assembled into complete circular molecules, ranging from 35,104 bp to 49,044 bp in size. All mtDNAs contained the same set of 41 conserved genes with identical gene order. Comparative analyses revealed that introns and intergenic regions were variable, whereas genic regions (including coding sequences, tRNA, and rRNA genes) were conserved. Among 24 introns detected, 11 were in protein-coding genes, 3 in tRNA genes, and the other 10 in rRNA genes. In addition, two mobile fragments were found in intergenic regions. Interestingly, six introns containing N-terminal duplication of the host genes were found in five conserved protein-coding gene sequences. Comparison of genes with and without these introns gave rise to the following proposed model: gene fragment exchange with other species can occur via gain or loss of introns with N-terminal duplication of the host genes.
conclusionsOur findings suggest a novel mechanism of fungal mitochondrial gene evolution: partial foreign gene replacement though intron mobility.
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