A new species of Laelaps Koch, 1836 (Mesostigmata: Laelapidae) parasitic of the sigmodontine rodent Oligoryzomys flavescens Waterhouse, 1837 (Rodentia: Cricetidae): Molecular and morphological characterization.

Autor: Savchenko E; Centro de Estudios Parasitológicos y de Vectores (CONICET-UNLP). Bv. 120 s/n e/ 60 y 64, 1900 La Plata, Argentina., Lareschi M; Centro de Estudios Parasitológicos y de Vectores (CONICET-UNLP). Bv. 120 s/n e/ 60 y 64, 1900 La Plata, Argentina. Electronic address: mlareschi@cepave.edu.ar.
Jazyk: angličtina
Zdroj: Acta tropica [Acta Trop] 2019 Nov; Vol. 199, pp. 105146. Date of Electronic Publication: 2019 Aug 15.
DOI: 10.1016/j.actatropica.2019.105146
Abstrakt: Laelaps schatzi sp. nov. (Mesostigmata: Laelapidae) is described on the bases of mites collected from the sigmodontine Oligoryzomys flavescens Waterhouse, 1837 (Rodentia: Cricetidae) in Pereyra, Buenos Aires, Argentina, based on morphological, morphometric and molecular data. Two DNA fragments, mtDNA cytochrome oxidase subunit I (COI) and nuclear 18.S-ITS1-5.8S-ITS2 partial gene sequence were deposited in the public Genbank datebase. The DNA extraction was conducted nondestructively using Chelex®100 modified for this study, to prevent vouchers for further microscopically examination. Laelaps schatzi sp. nov. is similar in general appearance to Laelaps paulistanensis Fonseca, 1936 and Laelaps fonsecai Gettinger, 1992, but the new species is unique in presenting a reticulated surface pattern on the genital shield from level of Zv1 up to posterior margin, and in the presence of one or two additional impair seta/e between J4 setae of dorsal shield. Also, the phylogenetic analyses separate the new species from all other species available in the GenBank of Laelaps.
(Copyright © 2019 Elsevier B.V. All rights reserved.)
Databáze: MEDLINE
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