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The complete mitochondrial genome of the meerkat (Suricata suricatta) and its phylogenetic relationship with other feliform species.

ABSTRACT: The meerkat, Suricata suricatta, is a highly social member of the mongoose family (Herpestidae) and the only extant species of the genus Suricata. We present the first complete mitochondrial genome of the meerkat, assembled with a seed-and-extend algorithm using three closely related species as references. Phylogenetic analyses using 22 mitochondrial genome sequences confirm the position of meerkat within the Herpestidae family and the Feliformia, a suborder of Carnivora, with high support values. This position is in good agreement with formerly conducted studies based on a small number of mitochondrial and nuclear gene fragments. Our complete mitochondrial genome represents a valuable resource for further phylogenetic studies, especially of the underrepresented members of the Herpestidae family.

SUBMITTER: Derezanin L

PROVIDER: S-EPMC7748773 | biostudies-literature |

REPOSITORIES: biostudies-literature

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Project description:Angiostronglyus vasorum is a cardiopulmonary nematode infecting mainly canids such as dogs (Canis familiaris) and foxes (Vulpes vulpes). Natural infections have also been reported in mustelids and red pandas (Ailurus fulgens fulgens). We report the occurrence of natural A. vasorum infections in a group of captive meerkats (Suricata suricatta), housed at a university facility in Switzerland. A. vasorum first-stage larvae (L1) were initially identified in a pooled faecal sample. Individual samples, investigated with the Baermann-Wetzel technique, revealed that 41% (7/17) of the meerkats were infected, with ranges of 2-125 L1/g faeces. PCR and sequencing of part of the ITS-2 region resulted in 100% identity with A. vasorum. Infected animals did not show clinical signs. One meerkat died two days after diagnosis. Upon necropsy one adult specimen was recovered; histological examination of the lung revealed granulomatous pneumonia caused by A. vasorum larvae and eggs as well as intima and media hyperplasia and isolated arteriosclerosis of larger lung vessels. However, the cause of death was a spleen rupture with associated blood loss. All meerkats were topically treated with 10 mg imidacloprid/2.5 mg moxidectin per animal, after which they became negative in all follow up faecal examinations. Potential intermediate (gastropods) and paratenic hosts (birds) were collected from within or outside the meerkats enclosure. Gastropods were examined by PCR and bird samples by digestion. Four out of 193 (2.1%) gastropod samples were positive for A. vasorum, whereas none of the bird samples were positive. Meerkats, belonging to the Herpestidae, therefore are suitable definitive hosts for A. vasorum, with production and excretion of live L1. Meerkats kept in captivity in areas where A. vasorum is endemic and with potential contact to intermediate hosts are at risk of infection. Regular faecal examinations including Baermann-Wetzel technique should be considered.

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The complete mitochondrial genome of the meerkat (Suricata suricatta) and its phylogenetic relationship with other feliform species.

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