Genetic differentiation between Mediterranean and Atlantic populations of the common prawn Palaemon serratus (Crustacea: Palaemonidae) reveals uncommon phylogeographic break
| Autor: | Christoph D. Schubart, Ronja Weiss, Ana M. González-Tizón, Andrés Martínez-Lage, Zeltia Torrecilla, Enrique González-Ortegón |
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| Rok vydání: | 2017 |
| Předmět: |
0106 biological sciences
Mediterranean climate biology Ecology 010604 marine biology & hydrobiology Aquatic Science biology.organism_classification Palaemon elegans 010603 evolutionary biology 01 natural sciences Palaemon serratus 590 Tiere (Zoologie) Decapoda Caridea Mediterranean Sea Atlantic Ocean Gulf of Cadiz phylogeography mtDNA Cox1 Phylogeography Mediterranean sea Sympatric speciation Littoral zone ddc:590 Palaemonidae |
| Zdroj: | Journal of the Marine Biological Association of the United Kingdom. 98:1425-1434 |
| ISSN: | 1469-7769 0025-3154 |
| DOI: | 10.1017/s0025315417000492 |
| Popis: | The Atlantic–Mediterranean transition zone between the Alborán Sea and the Gulf of Cádiz constitutes the most prominent marine geographic barrier in European waters and includes known phylogeographic breaks such as the Strait of Gibraltar and the Almería-Oran Front. A genetic shift in this area has been previously documented for the European littoral shrimp Palaemon elegans. Here we carried out a phylogeographic analysis with the congeneric and sympatric species Palaemon serratus to test for similar intraspecific genetic differentiation and geographic structure. This littoral prawn is distributed in the Northeastern Atlantic Ocean, the Mediterranean Sea and the Black Sea. We compared DNA sequences from the mitochondrial genes Cox1 and to a lesser extent from 16S rRNA of several Atlantic and Mediterranean populations. Furthermore, sequences from the nuclear gene Enolase were included for corroborating differences between Mediterranean and Atlantic individuals. A pronounced genetic differentiation was detected between the Mediterranean and Atlantic populations, amounting to 10.14% in Cox1 and 2.0% in 16S, indicating the occurrence of two independent evolutionary lineages. Interestingly, specimens from the Atlantic Gulf of Cadiz cluster together with the Mediterranean individuals, indicating that a biogeographic barrier appears to be located west of the Strait of Gibraltar. OA-Komponente aus Allianzlizenz |
| Databáze: | OpenAIRE |
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