| Texto completo | |
| Autor(es): |
Gularte, Thammy
;
Sumida, Paulo Y. G.
;
Bergamo, Gilberto
;
Rouse, Greg W.
Número total de Autores: 4
|
| Tipo de documento: | Artigo Científico |
| Fonte: | ZOOKEYS; v. N/A, n. 1219, p. 17-pg., 2024-01-01. |
| Resumo | |
A new species of Osedax is described here using molecular and morphological data. It was found at the depth of 550 m off the Brazilian coast through experimental deployment of cow bones. Osedax nataliae sp. nov. is the second Osedax species from the Southwest Atlantic Ocean and had been previously reported as Osedax 'BioSuOr-4'. Phylogenetic analysis of five concatenated genetic makers (28S rDNA, Histone H3, 18S rDNA, 16S rDNA, and cytochrome c oxidase I) placed Osedax nataliae sp. nov. within a well-supported Osedax Clade V, nested within a clade of Pacific Ocean Osedax though with poor support. The minimum interspecific COI distance between O. nataliae sp. nov. and another known Osedax was 13.92% (closest to O. 'sagami-3'). The maximum intraspecific COI diversity (uncorrected) within O. nataliae sp. nov. sampled here was 2.44% and population structure was visualized via haplotype network analysis. Morphologically, O. nataliae sp. nov. is characterized by its reddish orange crown of palps and a ventral yellowish collar on the anterior trunk where it meets the base of the crown. Osedax nataliae sp. nov. shares features with other Clade V species, notably pinnules inserted on the outer margin of palps. Additionally, the presence of dwarf males within the tube lumen of females was documented. Further sampling and research in the Southern Hemisphere are needed to understand the diversity and biogeography of Osedax across the world's oceans. (AU) | |
| Processo FAPESP: | 22/04019-7 - Diversidade de anelídeos do gênero osedax (verme-zumbi) associada a ossos de mamíferos no atlântico sudoeste profundo |
| Beneficiário: | Thammy Gularte Dias |
| Modalidade de apoio: | Bolsas no Brasil - Iniciação Científica |
| Processo FAPESP: | 11/50185-1 - Biodiversidade e conectividade de comunidades bênticas em substratos orgânicos (ossos de baleia e parcelas de madeira) no Atlântico Sudoeste Profundo - BioSuOr |
| Beneficiário: | Paulo Yukio Gomes Sumida |
| Modalidade de apoio: | Auxílio à Pesquisa - Programa BIOTA - Temático |
| Processo FAPESP: | 22/12683-4 - Diversidade de anelídeos do gênero Osedax (verme-zumbi) |
| Beneficiário: | Thammy Gularte Dias |
| Modalidade de apoio: | Bolsas no Exterior - Estágio de Pesquisa - Iniciação Científica |