Mitochondrial genome of Dinophilus gyrociliatus (Annelida: Dinophilidae)

David, Kyle T.; Halanych, Kenneth M.

doi:10.1080/23802359.2017.1407704

Cited by 4 publications

(3 citation statements)

References 14 publications

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“…have since been dispersed, making it unfeasible to trace if mixing of cultures has occurred, or which genetic sample stem from the type locality. While this was not the focus of the study, it appears that multiple independent lineages of D. gyrociliatus are being used throughout the literature (see David & Halanych 55 ), and our integration of sequences from both marine aquaria and laboratory cultures suggest that a larger and unidentified diversity is currently present within Dimorphilus .…”

Section: Discussionmentioning

confidence: 99%

Broad North Atlantic distribution of a meiobenthic annelid – against all odds

Worsaae

Kerbl

Vang

et al. 2019

Sci Rep

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DNA barcoding and population genetic studies have revealed an unforeseen hidden diversity of cryptic species among microscopic marine benthos, otherwise exhibiting highly similar and simple morphologies. This has led to a paradigm shift, rejecting cosmopolitism of marine meiofauna until genetically proven and challenging the “Everything is Everywhere, but the environment selects” hypothesis that claims ubiquitous distribution of microscopic organisms. With phylogenetic and species delimitation analyses of worldwide genetic samples of the meiofaunal family Dinophilidae (Annelida) we here resolve three genera within the family and showcase an exceptionally broad, boreal, North Atlantic distribution of a single microscopic marine species with no obvious means of dispersal besides vicariance. With its endobenthic lifestyle, small size, limited migratory powers and lack of pelagic larvae, the broad distribution of Dinophilus vorticoides seems to constitute a “meiofaunal paradox”. This species feasts in the biofilm among sand grains, but also on macroalgae and ice within which it can likely survive long-distance rafting dispersal due to its varying lifecycle stages; eggs encapsulated in cocoons and dormant encystment stages. Though often neglected and possibly underestimated among marine microscopic species, dormancy may be a highly significant factor for explaining wide distribution patterns and a key to solving this meiofaunal paradox.

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Section: Discussionmentioning

confidence: 99%

Broad North Atlantic distribution of a meiobenthic annelid – against all odds

Worsaae

Kerbl

Vang

et al. 2019

Sci Rep

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“…This explains the placement and long branch of S. giganteus in Figure 1 , and in it not being recovered as sister group to M. occidentalis . As more annelid mitogenomes become available, more exceptions to the conserved gene order are being revealed: another example is the small meiofaunal annelid Dimorphilus gyrociliatus (Schmidt 1857), which has a different gene order and lacks trnS1 (David and Halanych 2017 ). To better understand the evolution of mitochondrial gene order in Annelida, more complete mitochondrial genomes spanning the group’s phylogenetic diversity, and representing diverse taxa need to be sequenced.…”

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confidence: 99%

Mitochondrial genome of the freshwater annelid Manayunkia occidentalis (Sabellida: Fabriciidae)

Ekin

Rouse

2020

Mitochondrial DNA Part B

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“…As of writing, there are two 16S entries (AF380116: Dahlgren et al 2001; MG428625, partial mitochondrial genome: David and Halanych 2017) available in public databases that are referable to the genus Dinophilus. Their source materials, both identified as D. gyrociliatus, were collected in Xiamen, China (Dahlgren et al 2001) and Beaufort, North Carolina, USA (David and Halanych 2017), instead of the Faroe Islands, the type locality of the species (Schmidt 1857); the sequences from China (AF380116) and the USA (MG428625) are exactly the same. The genetic distance between the 16S sequences from Asamushi and China/USA was 0.019 (K2P), approaching those values for interspecific variations recorded for nine other annelid families (0.012-0.26) (Nygren 2014).…”

Section: Resultsmentioning

confidence: 99%

Meiobenthic Polychaete Dinophilus sp. cf. gyrociliatus (Annelida: Dinophilidae) from Japan with SEM Observation and DNA Barcodes

et al. 2020

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Tiny annelids identified as the marine meiobenthic polychaete Dinophilus gyrociliatus (Schmidt, 1857) have been reported not only from shallow water sediments but also artificial environments such as experimental aquaria almost all around the world; the species has thus been regarded to show a cosmopolitan distribution. However, various types of ciliary-band arrangements and genetic sequences have been reported from different populations, leading to a doubt on the species' taxonomic identity. In this study, we present results of our SEM observation of Dinophilus sp. cf. gyrociliatus from Japan and provide mitochondrial 16S ribosomal RNA and cytochrome c oxidase subunit I gene sequences of Japanese populations as DNA barcodes for contributing to resolving the taxonomic uncertainty of "D. gyrociliatus".

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Mitochondrial genome of Dinophilus gyrociliatus (Annelida: Dinophilidae)

Cited by 4 publications

References 14 publications

Broad North Atlantic distribution of a meiobenthic annelid – against all odds

Broad North Atlantic distribution of a meiobenthic annelid – against all odds

Mitochondrial genome of the freshwater annelid Manayunkia occidentalis (Sabellida: Fabriciidae)

Meiobenthic Polychaete <i>Dinophilus</i> sp. cf. <i>gyrociliatus</i> (Annelida: Dinophilidae) from Japan with SEM Observation and DNA Barcodes

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