Onderzoeksoutput

Welkom op het expertplatform!

Dit platform verschaft informatie en kennis omtrent de WL expertisedomeinen 'hydraulica en sediment', 'havens en waterwegen', 'waterbouwkundige constructies', 'waterbeheer' en 'kustbescherming' - gaande van WL medewerkers met hun expertise, het curriculum van deze instelling, tot publicaties, projecten, data (op termijn) en evenementen waarin het WL betrokken is.

Het WL onderschrijft het belang van "open access" voor de ontsluiting van haar onderzoeksresultaten. Lees er meer over in ons openaccessbeleid.

log in

• 
  People
• 
  Curriculum
• 
  Projects
• 
  Data sets
• 
  Publications
• 
  Events

[ meld een fout in dit record ]

mandje (1): toevoegen | toon

---

one publication added to basket [108711]

Seasonal dynamics of population genetic structure in cryptic taxa of the Pellioditis marina complex (Nematoda: Rhabditida) Derycke, S.; Backeljau, T.; Vlaeminck, C.; Vierstraete, A.; Vanfleteren, J.; Vincx, M.; Moens, T. (2007). Seasonal dynamics of population genetic structure in cryptic taxa of the Pellioditis marina complex (Nematoda: Rhabditida), in: Derycke, S. Patronen en processen in de genetische structuur van twee mariene nemarodentaxa Rhabditis (Pellioditis) marina and Halomonhystera disjuncta): een moleculaire, morfologische en experimentele benadering = Patterns and processes in the genetic structure of two marine nematode taxa (Rhabditis (Pellioditis) marina and Halomonhystera disjuncta): a molecular, morphology and experimental approach. pp. 41-63 In: Derycke, S. (2007). Patronen en processen in de genetische structuur van twee mariene nemarodentaxa Rhabditis (Pellioditis) marina and Halomonhystera disjuncta): een moleculaire, morfologische en experimentele benadering = Patterns and processes in the genetic structure of two marine nematode taxa (Rhabditis (Pellioditis) marina and Halomonhystera disjuncta): a molecular, morphology and experimental approach. PhD Thesis. Universiteit Gent. Faculteit Wetenschappen: Gent. X, 252 pp. Is gerelateerd aan: Derycke, S.; Backeljau, T.; Vlaeminck, C.; Vierstraete, A.; Vanfleteren, J.; Vincx, M.; Moens, T. (2006). Seasonal dynamics of population genetic structure in cryptic taxa of the Pellioditis marina complex (Nematoda: Rhabditida). Genetica 128(1-3): 307-321. dx.doi.org/10.1007/s10709-006-6944-0, meer

---

Beschikbaar in	Auteurs
VLIZ: Open access 272639 [ download pdf ]

---

Trefwoorden

Biology > Genetics Metapopulation Structures Temporal variations Nematoda [WoRMS]; Pellioditis marina (Bastian, 1865) Andrássy, 1983 [WoRMS] ANE, België [Marine Regions]; ANE, Nederland [Marine Regions] Marien/Kust; Brak water

Author keywords

genetic structure; metapopulation; mtDNA; nematode; Pellioditis marina;SSCP; temporal variation

---

Auteurs		Top
Derycke, S. Backeljau, T. Vlaeminck, C. Vierstraete, A.	Vanfleteren, J. Vincx, M. Moens, T.

---

Abstract

The distribution patterns and genetic structure of the Pellioditis marina species complex in Belgium and The Netherlands were compared between four consecutive seasons. Different types of habitats (coast, estuary, semi-estuary and lake) with different degrees of connectivity were sampled. In addition, each habitat type was characterised by either temporal or permanent algal deposits. We screened 426 bp of the mitochondrial cytochrome oxidase c (COI) gene with the single-strand conformation polymorphism (SSCP) method in 1615 individuals of Pellioditis marina. The 51 haplotypes were divided into four (sympatric) lineages, with divergences ranging from 0.25 to 10.6%. Our results show that the lineages have different temporal dynamics, which may be linked to abiotic factors. Analysis of Molecular Variance (AMOVA) indicated a significant structuring in the PmI lineage, which correlated with habitat characteristics and which changed over time (Mantel, r = 0.51; p = 0.126). Intrapopulational diversity was similar in all locations, and temporal changes in haplotype frequencies were not higher in temporary than in permanent algal deposits. Instead, the results of the temporal survey indicated that (some) P. marina populations are characterised by a metapopulation structure. It is emphasized that a complete and correct interpretation of processes causing genetic structuring within species and of the genetic structure itself can only be done when analyses are performed at several time points.

---

Alle informatie in het Integrated Marine Information System (IMIS) valt onder het VLIZ Privacy beleid

Top | Auteurs

IMIS is ontwikkeld en wordt gehost door het VLIZ.