Hyper-cryptic marine meiofauna: species complexes in Nemertodermatida

Nemertodermatida are microscopically small, benthic marine worms. Specimens of two nominal species, Sterreria psammicola and Nemertinoides elongatus from 33 locations worldwide were sequenced for three molecular markers. Species delimitation and validation was done using gene trees, haplotype networ...

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Bibliographic Details
Published in:PloS one 2014, Vol.9 (9), p.e107688-e107688
Main Authors: Meyer-Wachsmuth, Inga, Curini Galletti, Marco, Jondelius, Ulf
Format: Article
Language:English
Subjects:
Animals
Aquatic Organisms - classification
Aquatic Organisms - genetics
Bayesian analysis
Biodiversity
Biology and Life Sciences
cryptic species
Deoxyribonucleic acid
Dispersal
Distribution patterns
Diversity of life
DNA
Elongation
Evolution
Geography
Haplotypes
Hypotheses
Livets mångfald
marine biodiversity
marine biology
marine meiofauna
Meiofauna
Morphology
Multilocus Sequence Typing
Museums
Nemertoderma
Nemertodermatida
Phylogeny
Platyhelminthes
Reproducibility of Results
Species
species delimitation
Species diversity
Studies
Sympatric populations
Systematic Zoology
Taxonomy
Trends
Worms
zoologisk systematik och evolutionsforskning
Zoology
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Summary:Nemertodermatida are microscopically small, benthic marine worms. Specimens of two nominal species, Sterreria psammicola and Nemertinoides elongatus from 33 locations worldwide were sequenced for three molecular markers. Species delimitation and validation was done using gene trees, haplotype networks and multilocus Bayesian analysis. We found 20 supported species of which nine: Nemertinoides glandulosum n.sp., N. wolfgangi n.sp., Sterreria boucheti n.sp., S. lundini n.sp., S. martindalei n.sp., S. monolithes n.sp., S. papuensis n.sp., S. variabilis n.sp. and S. ylvae n.sp., are described including nucleotide-based diagnoses. The distribution patterns indicate transoceanic dispersal in some of the species. Sympatric species were found in many cases. The high level of cryptic diversity in this meiofauna group implies that marine diversity may be higher than previously estimated.
ISSN:1932-6203
1932-6203
DOI:10.1371/journal.pone.0107688