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25 février 2021
- handle: 10670/1.4ivupe
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Mots-clés
Corallium rubrum chimerism settlement growth rate octocoral.Sujets proches
Chimera (Genetics) Chimaera (Genetics) Chimeras (Genetics)Citer ce document
BRUNA GIORDANO et al., « First report of chimerism in the Mediterranean red coral (Corallium rubrum) », eJournals, ID : 10670/1.4ivupe
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Résumé
The phenomenon of chimerism in the Mediterranean red coral (Corallium rubrum) is reported and quantified in semi-natural conditions. 1688 larvae were maintained in closed circuit in presence of a suitable settlement surface (marble tiles). Post settlement survival and chimera formation were monitored for 1 year. According to our observation, when polyps settle at close contact, a high frequency of chimerism is observed (32%). After 1 year, only 33% of chimeric individuals survived but they are 40% bigger than not chimeric ones, suggesting that chimerism could confer a competitive advantage linked to increased growth rate.