Geometric morphometric on a new species of Trichodinidae. A tool to discriminate trichodinid species combined with traditional morphology and molecular analysis

MARCOTEGUI PAULA S.; MARTIN M. MONTES; JORGE BARNECHE; WALTER FERRARI; SERGIO MARTORELLI

International Journal for Parasitology: Parasites and Wildlife

Elsevier

Lugar: Amsterdam; Año: 2018

2213-2244

This study reports a new Trichodinidae, Trichodina bellottii n. sp., parasitizing the pearly fish Austrolebias bellottiifrom Buenos Aires, Argentina. Its small subunit ribosomal ribonucleic acid (SSU rDNA) was sequenced for thefirst time. Based on the results from morphological identification, SSU rDNA sequencing, and Elliptical Fourieranalysis, the new species was identified and compared with similar species. Phylogenetic analysis revealed thatthe genetic distances among the new species and similar species reached interspecific levels, furthermore, thephylogenetic study also validated the identification of T. bellottii n. sp. and its placement in the genus Trichodina.To be able to quantitatively describe the differences in shapes with similar species, this study used the ellipticFourier analysis by first time in this genus.