Genetic polymorphism in eight Chilean strains of the carotenogenic microalga Dunaliella salina Teodoresco (Chlorophyta)

PATRICIA I GOMEZ ^[1] ; MARIELA A GONZALEZ ^[1]
1. [1] Universidad de Concepción
  
  Universidad de Concepción
  
  Comuna de Concepción, Chile
Localización: Biological Research, ISSN-e 0717-6287, ISSN 0716-9760, Vol. 34, Nº. 1, 2001
Idioma: inglés
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Resumen
- Eight Chilean strains of Dunaliella salina obtained within a restricted geographic range, but exhibiting a high variability in their morphology, rate of growth and carotenogenic capacity, were analyzed by Random Amplified Polymorphic DNA (RAPD-PCR). Twenty of the 50 random primers (D, P, OPA and OPD series) that were tested amplified reproducible bands and were useful for comparative analysis of the strains. Of 107 polymorphic genetic markers, 49 were strain-specific. A great genetic variability was found among the strains in spite of their geographic proximity. In addition, phenetic analysis of the data showed close agreement between the morpho-physiological attributes and the genetic diversity of the strains