High genetic variability of Alexandrium catenella directly detected in environmental samples from the Southern Austral Ecosystem of Chile
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Autor/a
Cruzat, Fernando A.
Muñoz, Christian
González-Saldía, Rodrigo R.
Inostroza, Agar
Andree, Karl B.
Fecha de publicación
2017-12-21ISSN
0025-326X
Resumen
Chilean waters are often affected by Alexandrium catenella, one of the leading organisms behind Harmful Algae Blooms (HABs). Genetic variability for this species are commonly carried out from cultured samples, approach that may not accurately quantify genetic variability of this organism in the water column. In this study, genetic variability of A. catenella was determined by sequencing the rDNA region, in water samples from the Canal Puyuhuapi (South Austral Ecosystem of Chile). A. catenella was detected in 8,8% of samples analysed. All sequences obtained were A. catenella (Tamara complex group I), with three highly frequent haplotypes (34%), and twenty new haplotypes. These haplotypes increase the genetic variability from 2.8% to 3.14% in this area. Through this new method, genetic determination of A. catenella can accurately be monitored and ecological studies of this species can be implemented.
Tipo de documento
Artículo
Versión del documento
Versión aceptada
Lengua
English
Materias (CDU)
639 - Caza. Pesca. Piscicultura
Páginas
32
Publicado por
Elsevier
Publicado en
Marine Pollution Bulletin
Citación
Cruzat, Fernando A., Christian Muñoz, Rodrigo R. González-Saldía, Agar Inostroza, and Karl B. Andree. 2018. "High Genetic Variability Of Alexandrium Catenella Directly Detected In Environmental Samples From The Southern Austral Ecosystem Of Chile". Marine Pollution Bulletin 127: 437-444. Elsevier BV. doi:10.1016/j.marpolbul.2017.12.022.
Program
Aqüicultura
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