RT info:eu-repo/semantics/article
T1 Genetic diversity and biogeographical patterns of Caulerpa prolifera across the Mediterranean and Mediterranean/ Atlantic transition zone
A1 Afonso Carrillo, Julio
A1 Varela‑Álvarez, Elena
A1 Balau, Ana C.
A1 Marbà, Núria
A1 Duarte, Carlos M.
A1 Serrão, Ester A.
A2 BotánicaEcología y Fisiología Vegetal
A2 Botánica Marina
AB Knowledge of spatial patterns of genetic differentiation between populations is key to understanding processes in evolutionary history of biological species. Caulerpa is a genus of marine green algae, which has attractedmuch public attention, mainly because of the impacts ofinvasive species in the Mediterranean. However, very little is known about the ecological and evolutionary historyof the Mediterranean native Caulerpa prolifera, a specieswhich is currently found at sites distributed worldwide. C.prolifera provides a good model to explore the patterns ofgenetic diversity at different scales across the Mediterranean and Atlantic area. This study aims to investigate thebiogeographical patterns of diversity and differentiationof C. prolifera in the Mediterranean, with special focus on the Mediterranean/Atlantic transition zone. We used twonuclear (ITS rDNA and the hypervariable microsatellitelocus CaPr_J2) and one chloroplast (tufA) DNA markerson samples of C. prolifera from its entire range. Analysesof 51 sequences of the cpDNA tufA of C. prolifera, 87ITS2 sequences and genotypes of 788 ramets of C. prolifera for the locus CaPr_J2 revealed three different biogeographical areas: West Atlantic, East Atlantic and a largerarea representing the Mediterranean, the Mediterranean/Atlantic transition zone and a Pacific site (Bali). It wasfound out that the Mediterranean/Atlantic transition zoneis a biogeographical boundary for C. prolifera. A lack ofconnectivity was revealed between Atlantic and Mediterranean types, and identical sequences found in the Mediterranean and Indo-Pacific suggest either recent gene flowalong the Red Sea connection or a possible ancient IndoPacific origin.
YR 2015
FD 2015
LK http://riull.ull.es/xmlui/handle/915/26846
UL http://riull.ull.es/xmlui/handle/915/26846
LA en
NO Varela-Álvarez, E., A.C. Balau, N. Marbà, J. Afonso-Carrillo, C.M. Duarte & E.A. Serrão. 2015. Genetic diversity and biogeographical patterns of Caulerpa prolifera across the Mediterranean and Mediterranean/ Atlantic transition zone. Marine Biology 162: 557-569.
DS Repositorio institucional de la Universidad de La Laguna
RD 02-may-2024