Amazonian waters harbour an ancient freshwater Ceratomyxa lineage (Cnidaria: Myxosporea)

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dc.citation.volume169
dc.contributor.authorZatti, Suellen A.
dc.contributor.authorAtkinson, Stephen D.
dc.contributor.authorBartholomew, Jerri L.
dc.contributor.authorMaia, Antonio A. M.
dc.contributor.authorAdriano, Edson A. [UNIFESP]
dc.coverageAmsterdam
dc.date.accessioned2020-07-17T14:02:14Z
dc.date.available2020-07-17T14:02:14Z
dc.date.issued2017
dc.description.abstractA new species of Ceratomyxa parasitizing the gall bladder of Cichla monoculus, an endemic cichlid fish from the Amazon basin in Brazil, is described using morphological and molecular data. In the bile, both immature and mature myxospores were found floating freely or inside elongated plasmodia: length 304 (196-402) mu m and width 35.7 (18.3-55.1) mu m. Mature spores were elongated and only slightly crescent-shaped in frontal view with a prominent sutural line between two valve cells, which had rounded ends. Measurements of formalin-fixed myxospores: length 6.3 +/- 0.6 (5.1-7.5) mu m, thickness 41.2 +/- 2.9 (37.1-47.6) mu m, posterior angle 147 degrees. Lateral projections slightly asymmetric, with lengths 19.3 +/- 1.4 mu m and 20.5 +/- 1.3 mu m. Two ovoid, equal size polar capsules, length 2.6 +/- 0.3 (2-3.3) mu m, width 2.5 +/- 0.4 (1.8-3.7) mu m, located adjacent to the suture and containing polar filaments with 3-4 turns. The small subunit ribosomal DNA sequence of 1605 nt was no more than 97% similar to any other sequence in GenBank, and together with the host, locality and morphometric data, supports diagnosis of the parasite as a new species, Ceratomyxa brasiliensis n. sp. Maximum parsimony and maximum likelihood analyses showed that C brasiliensis n. sp. clustered within the marine Ceratomyxa Glade, but was in a basally divergent lineage with two other freshwater species from the Amazon basin. Our results are consistent with previous studies that show Ceratomyxa species can cluster according to both geography and host ecotype, and that the few known freshwater species diverged from marine cousins relatively early in evolution of the genus, possibly driven by marine incursions into riverine environments. (C) 2017 Elsevier B.V. All rights reserved.en
dc.description.affiliationUniv Estadual Campinas, Dept Anim Biol, Inst Biol, Rua Monteiro Lobato 255, BR-13083862 Campinas, SP, Brazil
dc.description.affiliationOregon State Univ, Dept Microbiol, Corvallis, OR 97331 USA
dc.description.affiliationUniv Sao Paulo, Fac Anim Sci & Food Engn, Dept Vet Med, Ave Duque Caxias Norte 225, BR-13635900 Pirassununga, SP, Brazil
dc.description.affiliationUniv Fed Sao Paulo, Dept Ecol & Evolutionary Biol, Rua Prof Arthur Riedel 275, BR-09972270 Diadema, SP, Brazil
dc.description.affiliationUnifespUniv Fed Sao Paulo, Dept Ecol & Evolutionary Biol, Rua Prof Arthur Riedel 275, BR-09972270 Diadema, SP, Brazil
dc.description.sourceWeb of Science
dc.description.sponsorshipCAPES Foundation within the Ministry of Education, Brazil [BEX - 6729/2015-00]
dc.description.sponsorshipCAPES
dc.description.sponsorshipSao Paulo Research Foundation - FAPESP [2013/21374-6]
dc.description.sponsorshipBrazilian Fostering Agency CNPq [305630/2013-0]
dc.format.extent100-106
dc.identifierhttp://dx.doi.org/10.1016/j.actatropica.2017.02.006
dc.identifier.citationActa Tropica. Amsterdam, v. 169, p. 100-106, 2017.
dc.identifier.doi10.1016/j.actatropica.2017.02.006
dc.identifier.issn0001-706X
dc.identifier.urihttps://repositorio.unifesp.br/handle/11600/54698
dc.identifier.wosWOS:000396954000013
dc.language.isoeng
dc.publisherElsevier Science Bv
dc.relation.ispartofActa Tropica
dc.rightsinfo:eu-repo/semantics/openAccess
dc.subjectMyxozoaen
dc.subjectCeratomyxaen
dc.subjectssrDNA sequencingen
dc.subjectFreshwater environmenten
dc.subjectAmazonen
dc.titleAmazonian waters harbour an ancient freshwater Ceratomyxa lineage (Cnidaria: Myxosporea)en
dc.typeinfo:eu-repo/semantics/article
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