A new Capitella polychaete worm (Annelida: Capitellidae) living inside whale bones in the abyssal South Atlantic

Silva, Camila Fernanda da; Shimabukuro, Maurício; Alfaro-Lucas, Joan M.; Fujiwara, Yoshihiro; Sumida, Paulo Yukio Gomes; Amaral, A. Cecília Z.

doi:10.1016/j.dsr.2015.12.004

Cited by 23 publications

(24 citation statements)

References 51 publications

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“…n. genetically differed from N. torquatus (3.7%, AF185258) of Australia, N. latericeus (7.0%, DQ779747) of Sweden, and N. hemipodus (9.3%, HM746759) of Canada (Table 3). Previously known genetic difference of the mtCOI and the 16S rRNA genes among the capitellid species is generally about 18–20% (Jeong et al 2017b, Silva et al 2016). In contrast, the histone H3 gene difference between cryptic nereidid polychaetes is around 2–9% (Glasby et al 2013).…”

Section: Resultsmentioning

confidence: 99%

“…Although this study provides detailed descriptions of the Notomastus species from Korean waters, the comparison with closely related species was limited due to the insufficient morphological information of many records. To overcome this difficulty, studies using a combination of morphological analysis and DNA barcoding have been conducted to distinguish closely related capitellid species and to improve species recognition between them (Jeong et al 2017b, Silva et al 2016). The aim of the present study is to clarify the taxonomic status of the undescribed Notomastus species of Korea by morphological and genetic analysis using three different partial genes (mtCOI, 16S rRNA, and H3) and to compare Korean species with their closest congeners.…”

Section: Introductionmentioning

confidence: 99%

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A new Notomastus (Annelida, Capitellidae) species from Korean waters, with genetic comparison based on three gene markers

Jeong¹,

Soh²,

Wi³

et al. 2018

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Notomastus koreanus sp. n., collected from the sublittoral muddy bottom of Korean waters, is described as a new species. The Korean new species closely resembles N. torquatus Hutchings & Rainer, 1979 in the chaetal arrangement and the details of abdominal segments, but differs in the position of genital pores and the absence of eyes. DNA sequences (mtCOI, 16S rRNA, and histone H3) of the new species were compared with all the available sequences of Notomastus species in the GenBank database. Three genes showed significant genetic differences between the new species and its congeners (COI: 51.2%, 16S: 38.1–47.3%, H3: 3.7–9.3%). This study also includes a comprehensive comparison of the new Korean Notomastus species with its most closely similar species, based on the morphological and genetic results.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A new Notomastus (Annelida, Capitellidae) species from Korean waters, with genetic comparison based on three gene markers

Jeong¹,

Soh²,

Wi³

et al. 2018

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“…, , ; Silva et al . ). Sunken bone remains of large whale carcasses become long‐lasting islands of organic matter in an otherwise oligotrophic environment, giving shelter and providing nutrition to a variety of marine invertebrates (Smith ).…”

Section: Introductionmentioning

confidence: 97%

“…, , ; Silva et al . ). Many of these opportunistic species seem adapted to thrive in extreme conditions of low oxygen and elevated H 2 S concentrations.…”

Section: Introductionmentioning

confidence: 97%

Cryptic species and colonization processes in Ophryotrocha (Annelida, Dorvilleidae) inhabiting vertebrate remains in the shallow‐water Mediterranean

et al. 2017

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Over the past several years, there has been growing interest in how bones of decaying mammals are colonized in the marine seabed. One of the most common opportunistic taxa occurring worldwide on bones is dorvilleid polychaetes of the genus Ophryotrocha. In a recent study in the Mediterranean, Ophryotrocha puerilis and Ophryotrocha alborana were two of the most abundant species occurring in experimentally deployed bones. These species have direct development and this makes them a suitable model to study the mechanisms and processes allowing organisms lacking a dispersive larval phase to colonize new substrates. Here, we address the colonization processes at the molecular level for populations of O. puerilis and O. alborana on experimentally deployed mammal bones in the shallow‐water Mediterranean collected over a year at 3‐month intervals. High genetic distances between some of the O. puerilis organisms collected indicated the occurrence of at least two cryptic sibling species (O. puerilis ‘Shallow’ and O. puerilis ‘Deep’) apart from O. puerilis sensu stricto. This was corroborated with phylogenetic analyses using an alignment of three concatenated genes (COI, 16S, H3) and with species delimitation analyses using COI. The haplotype network inferred from COI sequences for O. puerilis ‘Shallow’ showed a few common haplotypes shared between the two trimesters analysed and several other less represented haplotypes only present in one trimester. Thus, colonization of these experimental bones may have been achieved by a few organisms that arrived to the bones and were able to reseed, and by several individuals arriving to the experimental bones and not persisting across time. In contrast, the haplotype network for O. alborana revealed that none of the haplotypes present in three different trimesters were shared, suggesting that the populations arriving at the bones during each trimester were totally replaced by new individuals during the subsequent trimesters. Our study suggests that different species of shallow‐water Ophryotrocha occurring in the Mediterranean may have different patterns of substrate colonization despite sharing similar life histories.

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“…Among 17 species presently recognized (Warren, 1991;Blake et al, 2009;Magalhães and Bailey-Brock, 2012;Silva et al, 2016), Capitella capitata (Fabricius, 1780) had long been considered to have a cosmopolitan distribution (Blake, 2009). However, various studies focusing on its anatomy, development, and physiology (e.g., Grassle and Grassle, 1976;Eckelbarger and Grassle, 1983;Gamenick et al, 1998;Linke-Gamenick et al, 2000;Méndez, 2002Méndez, , 2006 suggested that nominal 'C.…”

Section: Introductionmentioning

confidence: 99%

Cosmopolitan or Cryptic Species? A Case Study ofCapitella teleta(Annelida: Capitellidae)

et al. 2016

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Capitella teleta Blake et al., 2009 is an opportunistic capitellid originally described from Massachusetts (USA), but also reported from the Mediterranean, NW Atlantic, and North Pacific, including Japan. This putatively wide distribution had not been tested with DNA sequence data; intraspecific variation in morphological characters diagnostic for the species had not been assessed with specimens from non-type localities, and the species status of the Japanese population(s) was uncertain. We examined the morphology and mitochondrial COI (cytochrome c oxidase subunit I) gene sequences of Capitella specimens from two localities (Ainan and Gamo) in Japan. Specimens from Ainan and Gamo differed from C. teleta from Massachusetts in methyl-green staining pattern, shape of the genital spines, and shape of the capillary chaetae; we concluded that these characters vary intraspecifically. Species delimitation analyses of COI sequences suggested that worms from Ainan and Massachusetts represent C. teleta; these populations share a COI haplotype. The specimens from Gamo may represent a distinct species and comprise a sister group to C. teleta s. str.; we refer to the Gamo population as Capitella aff. teleta. The average Kimura 2-parameter (K2P) distance between C. teleta s. str. and C. aff. teleta was 3.7%. The COI data indicate that C. teleta actually occurs in both the NW Atlantic and NW Pacific. Given the short planktonic larval duration of C. teleta, this broad distribution may have resulted from anthropogenic dispersal.

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A new Capitella polychaete worm (Annelida: Capitellidae) living inside whale bones in the abyssal South Atlantic

Cited by 23 publications

References 51 publications

A new Notomastus (Annelida, Capitellidae) species from Korean waters, with genetic comparison based on three gene markers

A new Notomastus (Annelida, Capitellidae) species from Korean waters, with genetic comparison based on three gene markers

Cryptic species and colonization processes in Ophryotrocha (Annelida, Dorvilleidae) inhabiting vertebrate remains in the shallow‐water Mediterranean

Cosmopolitan or Cryptic Species? A Case Study ofCapitella teleta(Annelida: Capitellidae)

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