ArticleBMC evolutionary biology2006
Putative cross-kingdom horizontal gene transfer in sponge (Porifera) mitochondria.
Article in BMC evolutionary biology, 2006. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 53 papers.
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53 citing papers in PubMed, 151 citations in OpenAlex.
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- Gatekeepers of the Germ Line: How Mitochondria Shape Reproductive Evolution in Metazoans.Biology · 2025Review
- Direct Development of Golf Ball Sponges, Genus Craniella (Demospongiae, Tetractinellida) From the Northeast Atlantic Ocean.Molecular reproduction and development · 2025Article
- Horizontal transmission of functionally diverse transposons is a major source of new introns.Proceedings of the National Academy of Sciences of the United States of America · 2025Article
- Genomic investigation of benthic invertebrates from the Clarion-Clipperton fields of polymetallic nodules.ZooKeys · 2025Article
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- From friends to foes: fungi could be emerging marine sponge pathogens under global change scenarios.Frontiers in microbiology · 2023Article
- Confirmation of the first intronic sequence in the bivalvian mitochondrial genome ofBiology letters · 2022Article
- Unprecedented frequency of mitochondrial introns in colonial bilaterians.Scientific reports · 2022Article
- First insight of genetic diversity, phylogeographic relationships, and population structure of marine spongeEcology and evolution · 2022Article
- Bioactivity Screening of Antarctic Sponges Reveals Anticancer Activity and Potential Cell Death via Ferroptosis by Mycalols.Marine drugs · 2021Article
- Organellar Introns in Fungi, Algae, and Plants.Cells · 2021Review
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- Hidden diversity in the genus Tethya: comparing molecular and morphological techniques for species identification.Heredity · 2019Article
- Fungal diversity of mangrove-associated sponges from New Washington, Aklan, Philippines.Mycology · 2019Article
- Diversity, host-specificity and stability of sponge-associated fungal communities of co-occurring sponges.PeerJ · 2018Article
- Mitochondrial RNA processing in absence of tRNA punctuations in octocorals.BMC molecular biology · 2017Article
- Evolution of group I introns in Porifera: new evidence for intron mobility and implications for DNA barcoding.BMC evolutionary biology · 2017Article
Corrections and comments
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Authors and funding
4 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundThe mitochondrial genome of Metazoa is usually a compact molecule without introns. Exceptions to this rule have been reported only in corals and sea anemones (Cnidaria), in which group I introns have been discovered in the cox1 and nad5 genes. Here we show several lines of evidence demonstrating that introns can also be found in the mitochondria of sponges (Porifera).
resultsA 2,349 bp fragment of the mitochondrial cox1 gene was sequenced from the sponge Tetilla sp. (Spirophorida). This fragment suggests the presence of a 1143 bp intron. Similar to all the cnidarian mitochondrial introns, the putative intron has group I intron characteristics. The intron is present in the cox1 gene and encodes a putative homing endonuclease. In order to establish the distribution of this intron in sponges, the cox1 gene was sequenced from several representatives of the demosponge diversity. The intron was found only in the sponge order Spirophorida. A phylogenetic analysis of the COI protein sequence and of the intron open reading frame suggests that the intron may have been transmitted horizontally from a fungus donor.
conclusionLittle is known about sponge-associated fungi, although in the last few years the latter have been frequently isolated from sponges. We suggest that the horizontal gene transfer of a mitochondrial intron was facilitated by a symbiotic relationship between fungus and sponge. Ecological relationships are known to have implications at the genomic level. Here, an ecological relationship between sponge and fungus is suggested based on the genomic analysis.
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