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You are here: Home / Associated publications / Belgian Journal of Zoology / Bibliographic References / Natural bioluminescence as a genetic marker for ophiuroid species

Samuel Dupont, Jerome Mallefet and Yannick Dewael (2001)

Natural bioluminescence as a genetic marker for ophiuroid species

BELGIAN JOURNAL OF ZOOLOGY, 131(S2):89-94.

Bioluminescence is the emission of visible light by living organisms. This amazing property is used in various research fields such as genetics, molecular biology, chemistry, etc. The aim of this work was to gather evidence that bioluminescence could also be used as a genetic marker in various luminescent species. Previous studies with the brittlestar Amphipholis squamata have shown that bioluminescence is an excellent marker for intraspecific genetic variability. The method, using maximum luminous capabilities induced by KCl 200mM depolarization, presents numerous advantages over other genetic markers (RAPDs, microsatellites, RFLP, etc.) : it is cheaper, faster and easier to use. Since bioluminescence is a frequent phenomenon in brittlestars, the same method was used to compare variability between six different species : Amphipholis squamata, Amphiura filiformis, A. arcystata, Ophiopsila aranea, O. californica and a new species of Amphiodia. Our results show that Amphiodia and both Ophiopsila species could be clearly isolated, each in a separated cluster, according to their luminous capabilities. These differences could be explained by physiological properties. On the other hand, an important intraspecific variability was observed for two species (A. squamata and A. filiformis). We propose that natural bioluminescence is a good marker to study inter- and intraspecific variability, providing useful functional information for physiological and population studies.

Ophiuroidea; echinodermata; bioluminescence; phylogeny; biodiversity; population genetics; markers
BJZ

ISSN 2295-0451 (online version)
ISSN 0777-6279 (printed version)
impact factor 2015: 0,87.

Editor-in-Chief:
Prof. Dr. Isa Schön
Royal Belgian Institute of Natural Sciences
Vautierstraat 29
1000 Brussels, Belgium

 



1863-1903
Annales de la Société malacologique de Belgique
 
1903-1923
​Annales de la Société royale malacologique et zoologique de Belgique
 
1923-1989
Annales de la Société Royale Zoologique de Belgique
 
1989-
Belgian Journal of Zoology