Integrative taxonomy reveals a new species of Dollfusentis (Acanthocephala: Illiosentidae), in Orthopristis ruber (Osteichthyes: Haemulidae) from Rio de Janeiro, Brazil
Por:
Keidel, Lucas, Garcia-Varela, Martin, Brener, Beatriz, Perez-Ponce de Leon, Gerardo, Santos, Claudia Portes
Publicada:
1 ago 2019
Resumen:
The taxonomy of species of Dollfusentis is rather confused due to the
overlap of morphological traits. The aim of this study was to follow an
integrative taxonomy approach over the acanthocephalans collected from
Orthopristis ruber in Brazil. Dollfusentis lenti n. sp. is described and
is characterised by having an elongate trunk with spines sparsely
distributed (largest 60 - 85 mu m long) extending from the neck to
almost reach the end of proboscis receptacle; additionally, the new
species possesses a long proboscis with 12-14 longitudinal rows of 16-17
hooks each; 3-4 posterior hooks reduced in size, well-spaced from the
eight ventrolateral crescent hooks, and lemnisci longer than proboscis
receptacle. New sequences of 18S rDNA, ITS1, 5.8S and ITS2, 28S rDNA and
COI mtDNA are provided. Dollfusentis bravoae is morphologically similar
because it possesses the same number of proboscis hooks, although it
differs by the size of testes and uterus and by having a higher number
of trunk spines; additionally, new scanning electron micrographs and
genetic data for both species support its distinction. Phylogenetic
analysis obtained either with two nuclear genes or mitochondrial COI
gene showed that Dollfusentis spp. belong to Illiosentidae, and the new
species is yielded as the sister species of D. bravoae, with D.
chandleri as the sister species of the latter two.
Filiaciones:
Keidel, Lucas:
Fundacao Oswaldo Cruz, Inst Oswaldo Cruz, Lab Avaliacao & Promocao Saude Ambiental, Av Brasil 4-365, BR-21040360 Manguinho, RJ, Brazil
Laboratório de Avaliação e Promoção a Saúde Ambiental, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz, Rio de Janeiro, Brazil
Garcia-Varela, Martin:
Univ Nacl Autonoma Mexico, Inst Biol, Mexico City, DF, Mexico
Instituto de Biología, Universidad Nacional Autónoma de México, Mexico
Brener, Beatriz:
Univ Fed Fluminense, Inst Biomed, Dept Microbiol & Parasitol, Niteroi, RJ, Brazil
Departamento de Microbiologia e Parasitologia, Instituto Biomédico, Universidade Federal Fluminense, Niterói, Brazil
Perez-Ponce de Leon, Gerardo:
Univ Nacl Autonoma Mexico, Inst Biol, Mexico City, DF, Mexico
Santos, Claudia Portes:
Fundacao Oswaldo Cruz, Inst Oswaldo Cruz, Lab Avaliacao & Promocao Saude Ambiental, Av Brasil 4-365, BR-21040360 Manguinho, RJ, Brazil
Laboratório de Avaliação e Promoção a Saúde Ambiental, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz, Rio de Janeiro, Brazil
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