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Evolution of northeast atlantic and mediterranean scorpionfish scorpaena and their venom protein profiles

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Resumo:Venomous marine vertebrates remain poorly studied compared to their terrestrial counterparts. Venoms are valuable resources for the discovery of new compounds with biotechnological potential, namely, in health sciences. However, to discover new proteins with pharmaceutical interest, it is necessary to acquire basic knowledge on venomous species and their venom “cocktails”. Phylogeny can be used as a roadmap to guide research in this field, by allowing to know the relationships between species and prospect about the existence of similar proteins in closely related species not yet studied. Scorpaena are known marine venomous fish, with species distributed throughout all the oceanic basins. In some NE Atlantic and Mediterranean Sea countries, they are known to be part of the range of species caught by artisanal fishing, and for causing episodes of envenomation. In this work, the phylogeny of 8 of the 9 Scorpaena species from the NE Atlantic and Mediterranean Sea was studied. This was the first phylogeny to encompass such a wide number of species of this genus. In parallel, protein profiles from five Scorpaena species were investigated, concluding that their venom profiles seem to differ in protein composition, even comparing sister species. This result supports the hypothesis of fish venoms suffering natural selection and allows to recognize the utility of phylogeny in guiding biotechnological studies with venoms from marine organisms.
Autores principais:Araújo, Marta Maria Lages
Assunto:Scorpaena Phylogeny Venoms Blue biotechnology Venomous fishes Filogenia Venenos Biotecnologia azul Peixes venenosos
Ano:2019
País:Portugal
Tipo de documento:dissertação de mestrado
Tipo de acesso:acesso aberto
Instituição associada:Ispa-Instituto Universitário
Idioma:inglês
Origem:Repositório do Ispa - Instituto Universitário

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