Journal article

Publication year: 2020

Pages: 396-416

Journal: Systematics and Biodiversity

Volume number: 18

Issue number: 4

ISSN: 1477-2000

DOI Link: https://doi.org/10.1080/14772000.2020.1771466

Publisher: Taylor and Francis Group

Abstract: 

Until recently, the evolutionary origin of aquatic organisms in the Balearic archipelago (western Mediterranean) had been scarcely addressed. The freshwater gastropod genusPseudamnicolaPaulucci, 1878 (Hydrobiidae), consisting of similar to 60 species in the Mediterranean area, is widely distributed across the major islands of Majorca and Minorca. From phylogenetic datasets of limited geographic coverage, a recent well-supported split has been inferred between the Minorca and IberianPseudamnicolaspecies, but the phylogenetic position of the Majorca clade composed of three species remained uncertain. In this study, we extend published sequence data for the COI and 16S rRNA mitochondrial genes and the 28S rRNA nuclear gene in western Mediterranean populations ofPseudamnicolawith homologous sequences from individuals of the non-surveyed region of Morocco to assess the origin of the Balearic species from a wider geographic perspective. Our maximum likelihood and Bayesian inference analyses recovered a strongly supported clade comprising the Majorcan species and four phylogenetic lineages in Morocco, two of which are new to science (described here asP. ramosaesp. nov. andP. ouarzazatensissp. nov.). Dating the nodes using an external molecular clock rate, younger ages were estimated for the Majorcan species (similar to 1 Mya) than for the Moroccan ones (similar to 5 Mya), which were still younger than the formation of the Balearic Islands (similar to 30 Mya). An independent well-supported clade grouped the Minorca and Iberian species diverging at similar to 4 Mya. Thus, we found two independent evolutionary origins within the Balearic archipelago likely attributable to long-distance dispersal events from the African and Eurasian continents.

Harvard Citation style: Boulaassafer, K., Ghamizi, M., Machordom, A. and Delicado, D. (2020) Phylogenetic relationships within Pseudamnicola Paulucci, 1878 (Caenogastropoda: Truncatelloidea) indicate two independent dispersal events from different continents to the Balearic Islands, Systematics and Biodiversity, 18(4), pp. 396-416. https://doi.org/10.1080/14772000.2020.1771466

APA Citation style: Boulaassafer, K., Ghamizi, M., Machordom, A., & Delicado, D. (2020). Phylogenetic relationships within Pseudamnicola Paulucci, 1878 (Caenogastropoda: Truncatelloidea) indicate two independent dispersal events from different continents to the Balearic Islands. Systematics and Biodiversity. 18(4), 396-416. https://doi.org/10.1080/14772000.2020.1771466