RT journal article
T1 A global phylogeny of Elysia Risso, 1818 (Gastropoda: Heterobranchia): molecular systematic insights focusing on European taxa and description of a new species
A1 Martín-Hervás Santos, María del Rosario
A1 Carmona Barnosi, Leila
A1 Jensen, Kathe R
A1 Krug, Patrick J.
A1 Vitale, Fabio
A1 Cervera Currado, Juan Lucas
A2 Biología
K1 integrative taxonomy
K1 new species
K1 phylogenetic systematics
K1 Sacoglossa
K1 species delimitation
AB The genus Elysia comprises about one-third of the species richness in Sacoglossa. However, the species diversity in the genus remains poorlycharacterized in some areas like the north-eastern Atlantic and Mediterranean waters. To clarify the systematics of this genus and to characterize the species diversity in undersampled regions, we performed an integrative study based on a thorough literature review, molecular andmorphological analyses, and species delimitation approaches. We conducted phylogenetic analyses of partial sequences of two mitochondrial genes (COI and 16S) and two nuclear genes (H3, 28S) using Bayesian inference and maximum likelihood methods, which confirmedthe presence of five of the recognized European Elysia species: Elysia viridis, E. timida, E. flava, E. margaritae, and E. rubeni. Moreover, a newspecies (Elysia azorica sp. nov.) was identified in the Azores, and E. gordanae, currently considered a junior synonym of E. margaritae, wasrecovered as a distinct species. In addition, we consider E. hetta as a junior synonym of E. gordanae, and E. translucens as a taxon inquirendum.Finally, the tropical E. evelinae is recorded along European coasts for the first time. Our results demonstrate the value of integrative approaches in resolving taxonomic uncertainty surrounding polymorphism and unravelling potential cases of cryptic or pseudocryptic speciescomplexes.
PB Oxford
SN 1096-3642
YR 2023
FD 2023-06-12
LK http://hdl.handle.net/10498/32817
UL http://hdl.handle.net/10498/32817
LA eng
DS Repositorio Institucional de la Universidad de Cádiz
RD 08-nov-2026