nieuwe zoekopdracht
[ meld een fout in dit record ]mandje (0): toevoegen | toon Print deze pagina

Genetic population structure of the Blue Starfish (Linckia laevigata) in the Indo-Malay Archipelago based on microsatellites
Sihaloho, H.F. (2013). Genetic population structure of the Blue Starfish (Linckia laevigata) in the Indo-Malay Archipelago based on microsatellites. MSc Thesis. Universiteit Antwerpen/Universiteit Gent/VUB: Antwerpen, Gent, Brussel. 10, 29 pp.

Thesis info:

Trefwoord
    Marien
Author keywords
    Broadcast spawner, genetic diversity, multiplex PCR

Auteur  Top 
  • Sihaloho, H.F.

Abstract
    Genetic analysis provides a starting point to understand larval dispersal and connectivity of marine organisms. The Indo-Malay Archipelago (IMA) has a complex geological history; it experienced sea level fluctuation during Plio-Pleistocene period and possesses a unique Indonesian Throughflow (ITF), which facilitates the only connection path between Indian and Pacific Oceans. The genetic population structure of the coral reef-associated blue starfish Linckia laevigata, which is widely distributed and has a long larval dispersal phase, was studied using 12 microsatellites markers. A total of 148 individuals of blue starfish were genotyped from 7 different sampling locations across the IMA. Microsatellite loci were polymorphic with a Mean Number of Alleles (MNA) ranging from 5.33 to 6.08 on population level. All populations significantly deviated from Hardy-Weinberg equilibrium (p < 0.001). A low genetic population structure was obtained (FST = 0.011, p < 0.001) using analysis of molecular variance. Structure analysis suggested four different clusters, and non-significant isolation by distance was indicated by the Mantel test (p = 0.140). A Principle Coordinate Analysis (PCoA) also confirmed the four possible groups. This study showed a population expansion of the blue starfish, and the genetic structure between the two oceans was less pronounced revealed by microsatellite marker.

Alle informatie in het Integrated Marine Information System (IMIS) valt onder het VLIZ Privacy beleid Top | Auteur 
IMIS is ontwikkeld en wordt gehost door het VLIZ, voor meer informatie contacteer .