| Texto completo | |
| Autor(es): |
Torrano-Silva, Beatriz N.
;
Riosmena-Rodriguez, Rafael
;
Oliveira, Mariana C.
Número total de Autores: 3
|
| Tipo de documento: | Artigo Científico |
| Fonte: | PHYTOTAXA; v. 190, n. 1, p. 18-pg., 2014-12-24. |
| Resumo | |
New specimens of Paulsilvella huveorum were collected in Brazil at Baia de Ilha Grande, Rio de Janeiro, and Sebastiao Gomes reef, Bahia. These new collections represent a relevant range extension and new hosts for the species (Amphiroa beauvoisii, Jania cubensis and non-identified Hydrozoa and Bryozoa) and enabled the first DNA amplifications for Paulsilvella. The systematic position of Pausilvella in the subfamily Lithophylloideae is confirmed based on SSU rDNA, psbA and rbcL molecular markers. Morphologically and anatomically the specimens are similar to the original description in which basal dimerous thalli with monomeric erect branches characterize the genus. But, the analyzed carposporangial conceptacles express the roof position varying from flush or above the thallus surface, the chambers always buried within tiers of columnar cells, suggesting that this feature is variable within the species and might also suggest that P. huveorum and the fossil P. antiqua should be considered as potential synonyms. We do not want to suggest this clump waiting for more collections from different geographical areas where new data may support our idea. Our results strongly suggest that the subfamily Lithophylloideae urgently needs to be reviewed to delimit genera based on molecular and morphological analysis because monomeric and dimeric thalli organization have evolved several times in the group. (AU) | |
| Processo FAPESP: | 10/19234-3 - Taxonomia e filogenia da subfamília Lithophylloideae no Brasil. |
| Beneficiário: | Beatriz Nogueira Torrano da Silva |
| Modalidade de apoio: | Bolsas no Brasil - Doutorado |
| Processo FAPESP: | 13/11833-3 - Diversidade e filogenia de algas vermelhas (Rhodophyta) de importância econômica e ecológica |
| Beneficiário: | Mariana Cabral de Oliveira |
| Modalidade de apoio: | Auxílio à Pesquisa - Programa BIOTA - Regular |