ArticlePloS one2015
An Integrated Morphological and Molecular Approach to the Description and Systematisation of a Novel Genus and Species of Macrodasyida (Gastrotricha).
Article in PloS one, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
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Who cites it
9 citing papers in PubMed, 45 citations in OpenAlex.
- Improved taxonomic and gene sampling advance the knowledge of deep relationships within Macrodasyida (Gastrotricha).Cladistics : the international journal of the Willi Hennig Society · 2026Article
- Molecular and morphological analysis of the developing nemertean brain indicates convergent evolution of complex brains in Spiralia.BMC biology · 2021Article
- The curious and neglected soft-bodied meiofauna: Rouphozoa (Gastrotricha and Platyhelminthes).Hydrobiologia · 2020Article
- Integrated data analysis allows the establishment of a new, cosmopolitan genus of marine Macrodasyida (Gastrotricha).Scientific reports · 2019Article
- Evolutionary Implications of the microRNA- and piRNA Complement ofNon-coding RNA · 2019Article
- Integrative taxonomy of a new Redudasys species (Gastrotricha: Macrodasyida) sheds light on the invasion of fresh water habitats by macrodasyids.Scientific reports · 2019Article
- A synopsis of knowledge, zoogeography and an online interactive map of Brazilian marine gastrotrichs.PeerJ · 2019Article
- A new species of Turbanellidae (Gastrotricha, Macrodasyida) from Jamaica, with a key to species ofZooKeys · 2018Article
- Neuromuscular study of early branching Diuronotus aspetos (Paucitubulatina) yields insights into the evolution of organs systems in Gastrotricha.Zoological letters · 2016Article
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Authors and funding
3 authors at 2 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundGastrotricha systematics is in a state of flux mainly due to the conflicts between cladistic studies base on molecular markers and the classical systematisation based on morphological traits. In sandy samples from Thailand, we found numerous macrodasyidan gastrotrichs belonging to an undescribed species of difficult taxonomic affiliation. The abundance and original nature of the specimens prompted us to undertake a deep survey of both morphological and molecular traits aiming at a reliable systematisation of the new taxon. METHODOLOGY/PRINCIPAL
findingsUsing several microscopical techniques we investigated the external and internal anatomy, including the muscular and nervous systems of the new species. Additional specimens were used to obtain the 18S rRNA gene sequence; molecular data was analysed cladistically in conjunction with data from additional species belonging to the near complete Macrodasyida taxonomic spectrum. Specimens are vermiform, up to 806 μm in total length, and show a well-defined head equipped with peculiar leaf-like sensorial organs and a single-lobed posterior end. The adhesive apparatus includes anterior, ventrolateral, dorsal and posterior tubes. Pharynx is about 1/4 of the total length and shows pores at its posterior 3/4. Adult specimens exhibit maturing eggs and a bulky, muscular caudal organ, but do not show sperm nor the frontal organ. Musculature and nervous system organisation resemble the usual macrodasyidan plan; however, the somatic circular muscles of the intestinal region surround all other muscular components and a third FMRFamide-IR commissure ventral to the pharyngo-intestinal junction appear to be an autoapomorphic traits of the new species. CONCLUSIONS/SIGNIFICANCE: While the anatomical characteristics of the Asian specimens appear so unique to grant the establishment of a new taxon, for which the name Thaidasys tongiorgii gen. et sp. nov. is proposed, the result of phylogenetic analyses based on the 18S rRNA gene unites the new genus with the family Macrodasyidae.
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