Molecular markers in studies on fish parasites : review/Marcadores moleculares aplicados a estudos de Platyhelminthes parasitos de peixes: revisao

Studies with molecular markers are currently more common for all groups of living organisms. Molecular techniques used in Platyhelminthes parasites of fishes do not merely reveal complex life cycles, but are important for species distinction and the elucidation of the phylogenetic hypothesis. Curren...

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Veröffentlicht in:Acta scientiarum. Biological sciences 2016-10, Vol.38 (4), p.495
Hauptverfasser: da Graca, Rodrigo Junio, Fabrin, Thomaz Mansini Carrenho, Gasques, Luciano Seraphim, Prioli, Sonia Maria Alves Pinto, Prioli, Alberto Jose, Takemoto, Ricardo Massato
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Sprache:eng
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Zusammenfassung:Studies with molecular markers are currently more common for all groups of living organisms. Molecular techniques used in Platyhelminthes parasites of fishes do not merely reveal complex life cycles, but are important for species distinction and the elucidation of the phylogenetic hypothesis. Current research verified which molecular markers were mainly used phylogenetic studies on Platyhelminthes parasites of fish so that subsidies for further phylogenetic studies in Icthyoparasitology could be provided. Data base of CAPES Journals platform was employed for bibliometric analysis comprising the keywords "fish" and "phylogeny" associated with "Cestoda", "Digenea" or "Monogenea". Information retrieved was quantified and tabulated. Most studies were on Monogenea (43%), followed by Digenea (37%) and Cestoda (18%). Ribosomal molecular markers were the most used in the phylogenetic studies for fish parasites. Due to the advance of molecular biology techniques and of bioinformatics, with more robust phylogenetic analysis, the use of these techniques in other areas such as Ichytioparasitology is on the increase. In fact, molecular phylogenetics and morphological structures analysis have efficiently contributed towards the understanding of phylogenetic relationships among the groups. Keywords: Digenea, Cestoda, Monogenea, ribosomal DNA, COI. Estudos com marcadores moleculares sao cada vez mais comuns em todos os grupos de seres vivos. Para os platelmintes parasitos de peixes, as tecnicas moleculares possibilitam desvendar ciclos de vida complexos, sendo importantes tambem na distincao de especies e na elucidacao de hipoteses filogeneticas. Neste sentido, este trabalho teve como objetivo verificar quais sao os principais marcadores moleculares utilizados nos estudos de platelmintos parasitos de peixes, visando fornecer subsidios para futuros estudos filogeneticos na Ictioparasitologia. Para a analise bibliometrica foi utilizado o banco de dados dos Periodicos da CAPES, tendo como palavras-chave "fish" e "phylogeny" associadas a "Cestoda", "Digenea" e "Monogenea". As informacoes obtidas nos trabalhos foram tabuladas e quantificadas. Dos 143 trabalhos obtidos 43% foram com monogeneticos, 37% com digeneticos e 18% com cestoides. Os marcadores moleculares ribossomais foram os mais utilizados nos estudos filogeneticos com estes parasitos de peixes. Com o avanco das tecnicas de biologia molecular e da bioinformatica, com analises filogeneticas mais robustas, e crescente a
ISSN:1679-9283
DOI:10.4025/actascibiolsci.v38i4.29499