Validating Livanow: Molecular Data Agree That Leeches, Branchiobdellidans, and Acanthobdella peledina Form a Monophyletic Group of Oligochaetes

Siddall, Mark E.; Apakupakul, Kathleen; Burreson, Eugene M.; Coates, Kathryn A.; Erséus, Christer; Gelder, Stuart R.; Källersjö, Mari; Trapido-Rosenthal, Henry G.

doi:10.1006/mpev.2001.1021

Cited by 158 publications

(130 citation statements)

References 30 publications

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“…Forward and reverse fragments were assembled and primer regions cropped and discarded. Outgroup sequences for Marphysa belli, Marphysa sanguinea, Ophryotrocha gracilis, Lumbrineris funchalensis, and Hyalinoecia tubicola were from Struck et al (2005), Dahlgren et al (2001), and Siddall et al (2001). All sequences have been deposited in GenBank with accession numbers DQ317807 to DQ317917 (Table 3).…”

Section: Sequence Generationmentioning

confidence: 99%

“…For the dorvilleid genus Ophrytrocha it is 12%, based on 17 species (Dahlgren et al, 2001). For COI, mean within-family divergence in the Terebellidae is over 20% based on the nine available sequences from GenBank (Colgan et al, 2001;Siddall et al, 2001). For the two terebellid genera of which two species are represented in GenBank, sequence divergence was 20% for the two Loimia species and 19% for the two Amphitrite species.…”

Section: Coi Haplotype Name Samplesmentioning

confidence: 99%

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Phylogeny and Genetic Diversity of Palolo Worms (Palola, Eunicidae) from the Tropical North Pacific and the Caribbean

Schulze¹

2006

The Biological Bulletin

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Abstract.Palolo worms (Palola, Eunicidae) are best known for their annual mass spawnings, or "risings," in the South Pacific. Palola currently contains 14 morphologically similar species, mostly from shallow tropical waters. In this study, 60 specimens of Palola from nine locations in the tropical North Pacific and the Caribbean were sequenced for the two mitochondrial markers cytochrome c oxidase subunit I and 16S ribosomal RNA to infer phylogenetic relationships, genetic diversity, and phylogeography within the taxon. Phylogenetic analysis was performed using Bayesian statistics and parsimony. Vouchers of the same specimens were examined morphologically. Two major clades (A and B) can be distinguished within the monophyletic Palola. A number of individuals in clade B bear rows of ventral eyespots in the posterior body region, typical for swarming P. viridis and probably a synapomorphy for clade B. No morphological synapomorphy was found for clade A. Haplotypes from divergent clades often co-occur in the same location. Some haplotypes are geographically widespread, in one case covering the entire east-west expansion of the tropical Pacific. These results imply that despite the apparent absence of teleplanic larvae in eunicid polychaetes, long-distance dispersal is possible in at least some lineages of Palola.With the first taste of palolo I understood the Samoans' love for it. Certainly it suggested a salty caviar, but with something added, a strong, rich whiff of the mystery and fecundity of the ocean depths.-R. Steinberg. Pacific and Southeast Asian cooking.

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Section: Sequence Generationmentioning

confidence: 99%

Section: Coi Haplotype Name Samplesmentioning

confidence: 99%

Phylogeny and Genetic Diversity of Palolo Worms (Palola, Eunicidae) from the Tropical North Pacific and the Caribbean

Schulze¹

2006

The Biological Bulletin

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“…In the last decade, the access to DNA sequence data has revealed phylogenetic relationships among various clitellate groups that were not obvious from analyses of morphological characters alone (Siddall & Burreson 1998;Trontelj et al 1999;Martin et al 2000;Martin 2001;Siddall et al 2001;Erséus & Källersjö 2004;Erséus 2005;Sjö lin et al 2005;Envall et al 2006). It can be expected that molecular systematics will be an important instrument to resolve many of the old controversies in enchytraeid taxonomy as well.…”

Section: A Modern Approach To the Marionina Problemmentioning

confidence: 99%

In search ofMarionina(Clitellata, Enchytraeidae): A taxonomic history of the genus and re‐description of the type speciesPachydrilus georgianusMichaelsen, 1888

Rota

Matamoros

Erséus

2008

Italian Journal of Zoology

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An approach towards a systematic revision of Marionina Michaelsen, 1890 is made through an historical overview of its nomenclature and definition, and a thorough characterization of its type species, the South Georgian marine littoral Pachydrilus georgianus Michaelsen, 1888. Relevant sections of early enchytraeid literature provide the background for appreciating the complex taxonomic history of the genus and giving a final word as to the controversial validity of its name, authority and date. Marionina in its current acceptation comprises about 100 nominal species, but the paper documents how, since its establishment, the genus has been an artificial assemblage of unrelated taxa, whose taxonomy cannot be sorted out (1) without finding new morphological characters and improving the standard of descriptions, and (2) without using a total evidence approach (morphology and molecules) within a phylogenetic framework. Confusion about the identity of the type species, originally briefly described and only partially figured, is unravelled upon examination of the syntypes available in Hamburg and Berlin. Since neither series proved to be monospecific, a lectotype is designated to assure correct and consistent application of the name in the future.

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“…Their anatomical simplicity and the plasticity of key morphological characters of the body hinder precise taxonomic resolution of groups within extant Clitellata (Novo et al, 2011). Greatest taxonomic resolution has been achieved using molecular data (Apakupakul et al, 1999;Martin, 2001;Siddall et al, 2001;Erséus and Källersjö, 2004;Rousset et al, 2007;Marotta et al, 2008;Struck et al, 2011;Weigert et al, 2014) and ultrastructural characters of spermatozoa (Jamieson and Rouse, 1989;Ferraguti and Erséus, 1999;Cardini and Ferraguti, 2004;Marotta and Ferraguti, 2009), although such data are not yet available for fossils, and the relationships inferred among some groups are still disputed.…”

Section: Introductionmentioning

confidence: 99%

Fossil clitellate annelid cocoons and their microbiological inclusions from the Eocene of Seymour Island, Antarctica

McLoughlin

Bomfleur

Mörs

et al. 2016

Palaeontologia Electronica

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Clitellate annelids have a meagre body fossil record but they secrete proteinaceous cocoons for the protection of eggs that, after hardening, are readily fossilized and offer a largely untapped resource for assessing the evolutionary history of this group. We describe three species of clitellate cocoons (viz., Burejospermum seymourense sp. nov., B. punctatum sp. nov. and Pegmatothylakos manumii gen. et sp. nov.) from the lower Eocene La Meseta Formation, Seymour Island, Antarctica. The cocoons probably derive from continental settings and were transported to, and preserved within, nearshore marine to estuarine environments. The cocoons provide the first evidence of commensal or parasitic relationships in the Eocene continental ecosystems of Antarctica. Moreover, numerous micro-organisms and the oldest fossilized examples of animal spermatozoa are preserved as moulds within the consolidated walls of the cocoons. Fossil annelid cocoons offer potential for enhanced palaeoenvironmental interpretation of sediments, correlation between continental and shallowmarine strata, and improved understanding of the development of clitellate annelid reproductive traits and the evolutionary history of soft-bodied micro-organisms in general.

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Validating Livanow: Molecular Data Agree That Leeches, Branchiobdellidans, and Acanthobdella peledina Form a Monophyletic Group of Oligochaetes

Cited by 158 publications

References 30 publications

Phylogeny and Genetic Diversity of Palolo Worms (Palola, Eunicidae) from the Tropical North Pacific and the Caribbean

Phylogeny and Genetic Diversity of Palolo Worms (Palola, Eunicidae) from the Tropical North Pacific and the Caribbean

In search ofMarionina(Clitellata, Enchytraeidae): A taxonomic history of the genus and re‐description of the type speciesPachydrilus georgianusMichaelsen, 1888

Fossil clitellate annelid cocoons and their microbiological inclusions from the Eocene of Seymour Island, Antarctica

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