Gut content metabarcoding and citizen science reveal the earthworm prey of the exotic terrestrial flatworm, Obama nungara

Roy, Virginie; Ventura, Mathis; Fourcade, Yoan; Justine, Jean‐Lou; Gigon, Agnès; Dupont, Lise

doi:10.1016/j.ejsobi.2022.103449

Cited by 4 publications

(1 citation statement)

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“…Arthurdendyus triangulatus is not the only species of terrestrial flatworm that has become invasive in Europe and beyond 21 – 38 . Invading species of terrestrial flatworms are represented by several subfamilies of the Geoplanidae, among which some belong to the Rhynchodeminae, the subfamily that includes A. triangulatus 25 , 26 , 30 , 39 within the tribe Caenoplanini.…”

Section: Introductionmentioning

confidence: 99%

The invasive land flatworm Arthurdendyus triangulatus has repeated sequences in the mitogenome, extra-long cox2 gene and paralogous nuclear rRNA clusters

Gastineau,

Lemieux,

Turmel

et al. 2024

Sci Rep

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Using a combination of short- and long-reads sequencing, we were able to sequence the complete mitochondrial genome of the invasive ‘New Zealand flatworm’ Arthurdendyus triangulatus (Geoplanidae, Rhynchodeminae, Caenoplanini) and its two complete paralogous nuclear rRNA gene clusters. The mitogenome has a total length of 20,309 bp and contains repetitions that includes two types of tandem-repeats that could not be solved by short-reads sequencing. We also sequenced for the first time the mitogenomes of four species of Caenoplana (Caenoplanini). A maximum likelihood phylogeny associated A. triangulatus with the other Caenoplanini but Parakontikia ventrolineata and Australopacifica atrata were rejected from the Caenoplanini and associated instead with the Rhynchodemini, with Platydemus manokwari. It was found that the mitogenomes of all species of the subfamily Rhynchodeminae share several unusual structural features, including a very long cox2 gene. This is the first time that the complete paralogous rRNA clusters, which differ in length, sequence and seemingly number of copies, were obtained for a Geoplanidae.

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