A draft transcriptome of a parasite Neocamacolaimus parasiticus (Camacolaimidae, Plectida).

Mohammed Ahmed,Oleksandr Holovachov,Funmilola Adedidran

doi:10.21307/jofnem-2021-040

Mohammed Ahmed, Oleksandr Holovachov + Show 1 more

Open Access

https://doi.org/10.21307/jofnem-2021-040

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Abstract

Camacolaimidae is a clade of nematodes that include both free-living epistrate feeding forms and parasites of marine protozoans and invertebrates. Neocamacolaimus parasiticus is a parasite of marine polychaete worms. Given its phylogenetic affinities to free-living species, Neocamacolaimus can be a reference for research of the origin of parasitism in an aquatic environment. Here, we present a draft transcriptome obtained from a single post-parasitic juvenile individual of this species. The final assembly consists of 19,180 protein coding sequences (including isoforms) with the following BUSCO scores for Nematoda: 65.38% complete, 9.06% partial, and 25.56% missing, and for Metazoa: 79.45% complete, 3.17% partial, and 17.38% missing.

Highlights

The nematode family Camacolaimidae from the order Plectida is a relatively small group of marine nematodes (Holovachov, 2014) long thought to be free-living selective deposit feeders and epistrate feeders (Wieser, 1953)
Found parasitizing a benthic polychaete Sphaerosyllis cf. hystrix collected near Bonden island west of Grundsund in the Lysekil Municipality of Sweden (Holovachov and Boström, 2014), the species was subsequently found in several other localities in Skagerrak
These are the island of Hållö south-west of Smögen, localities west of Fjällbacka and around Koster islands, always in the coarse shell gravel characterized by the presence of lancelets

Summary

Introduction

The nematode family Camacolaimidae from the order Plectida is a relatively small group of marine nematodes (Holovachov, 2014) long thought to be free-living selective deposit feeders and epistrate feeders (Wieser, 1953). Found parasitizing a benthic polychaete Sphaerosyllis cf hystrix collected near Bonden island west of Grundsund in the Lysekil Municipality of Sweden (Holovachov and Boström, 2014), the species was subsequently found in several other localities in Skagerrak.

Results

Conclusion