IMIS | Flanders Marine Institute
 

Flanders Marine Institute

Platform for marine research

IMIS

Publications | Institutes | Persons | Datasets | Projects | Maps
[ report an error in this record ]basket (0): add | show Printer-friendly version

Low genetic diversity and recent demographic expansion in the red starfish Echinaster sepositus (Retzius 1816)
Garcia-Cisneros, A.; Palacín, C.; Ben Khadra, Y.; Perez-Portela, R. (2016). Low genetic diversity and recent demographic expansion in the red starfish Echinaster sepositus (Retzius 1816). NPG Scientific Reports 6(33269): 16 pp. hdl.handle.net/10.1038/srep33269
In: Scientific Reports (Nature Publishing Group). Nature Publishing Group: London. ISSN 2045-2322, more
Peer reviewed article  

Available in  Authors 

Keywords
    Echinaster (Echinaster) sepositus (Retzius, 1783) [WoRMS]; Marine

Authors  Top 
  • Garcia-Cisneros, A.
  • Palacín, C.
  • Ben Khadra, Y.
  • Perez-Portela, R.

Abstract
    Understanding the phylogeography and genetic structure of populations and the processes responsible of patterns therein is crucial for evaluating the vulnerability of marine species and developing management strategies. In this study, we explore how past climatic events and ongoing oceanographic and demographic processes have shaped the genetic structure and diversity of the Atlanto-Mediterranean red starfish Echinaster sepositus. The species is relatively abundant in some areas of the Mediterranean Sea, but some populations have dramatically decreased over recent years due to direct extraction for ornamental aquariums and souvenir industries. Analyses across most of the distribution range of the species based on the mitochondrial cytochrome c oxidase subunit I gene and eight microsatellite loci revealed very low intraspecific genetic diversity. The species showed a weak genetic structure within marine basins despite the a priori low dispersal potential of its lecithotrophic larva. Our results also revealed a very recent demographic expansion across the distribution range of the species. The genetic data presented here indicate that the species might be highly vulnerable, due to its low intraspecific genetic diversity

All data in IMIS is subject to the VLIZ privacy policy Top | Authors