Saprolegnia species affecting the salmonid aquaculture in Chile and their associations with fish developmental stage
The rapid increase in the aquaculture production of salmonids has been followed by a rise in several diseases. In particular, saprolegniosis can account for at least 10% of the annual economic loss in salmonids. In this study, we investigated the main Saprolegnia species involved in saprolegniosis o...
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ftcsic:oai:digital.csic.es:10261/164431 2024-02-11T10:02:13+01:00 Saprolegnia species affecting the salmonid aquaculture in Chile and their associations with fish developmental stage Sandoval Sierra, José Vladimir Latif Eugenin, F. Martín, María P. Zaror, L. Diéguez Uribeondo, Javier Ministerio de Economía y Competitividad (España) 2014 http://hdl.handle.net/10261/164431 https://doi.org/10.1016/j.aquaculture.2014.09.005 https://doi.org/10.13039/501100003329 unknown Elsevier #PLACEHOLDER_PARENT_METADATA_VALUE# CGL2012-39357 Postprint Sí doi:10.1016/j.aquaculture.2014.09.005 issn: 0044-8486 Aquaculture 434: 462- 469 (2014) http://hdl.handle.net/10261/164431 http://dx.doi.org/10.13039/501100003329 open Salmon ITS nrDNA Oomycetes MOTUs Pathogen artículo http://purl.org/coar/resource_type/c_6501 2014 ftcsic https://doi.org/10.1016/j.aquaculture.2014.09.00510.13039/501100003329 2024-01-16T10:30:16Z The rapid increase in the aquaculture production of salmonids has been followed by a rise in several diseases. In particular, saprolegniosis can account for at least 10% of the annual economic loss in salmonids. In this study, we investigated the main Saprolegnia species involved in saprolegniosis of salmonids in Chile, and their association with specific developmental stages of the host fish. For this purpose, we studied 244 isolates of Saprolegniaaffected Atlantic salmon (Salmo salar), rainbow trout (Oncorhynchus mykiss), and king salmon (Oncorhynchus tshawytscha) from the salmon farming regions, using a recently developed identification strategy based on molecular taxonomical operational units. We found that the Saprolegnia species associated with diseased salmon were Saprolegnia australis, Saprolegnia delica, Saprolegnia diclina, Saprolegnia ferax, Saprolegnia parasitica and two new Saprolegnia species observed during this study. In order to determine whether there were any specific species associationswith different stages in the fish life cycle, we appliedmosaic plots and correspondence analyses for categorical data. These analyses showed a strong association of S. parasitica with samples fromthe adult stage of the fish (χ2 = 196.29, p b 0.0001), while the species S. australis, S. diclina and Saprolegnia sp. 2 were strongly associated with embryonic stages (eggs or alevins) (χ2 = 196.29, p b 0.0001). This work represents the first detailed molecular characterization of Saprolegnia species involved in saprolegniosis in Chile, and the first study showing specific association of different Saprolegnia species with different stages in the salmonid life cycle. This work was supported by grants from Ministerio de Economía y Competitividad of Spain (CGL2012-39357) and Fundación San Ignacio del Huinay, Endesa, Chile (2011HUIN04). Jose V. Sandoval-Sierra was supported by grant from the European Union ITN-SAPRO-238550. Peer Reviewed Article in Journal/Newspaper Atlantic salmon Salmo salar Digital.CSIC (Spanish National Research Council) Aquaculture 434 462 469 |
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Open Polar |
collection |
Digital.CSIC (Spanish National Research Council) |
op_collection_id |
ftcsic |
language |
unknown |
topic |
Salmon ITS nrDNA Oomycetes MOTUs Pathogen |
spellingShingle |
Salmon ITS nrDNA Oomycetes MOTUs Pathogen Sandoval Sierra, José Vladimir Latif Eugenin, F. Martín, María P. Zaror, L. Diéguez Uribeondo, Javier Saprolegnia species affecting the salmonid aquaculture in Chile and their associations with fish developmental stage |
topic_facet |
Salmon ITS nrDNA Oomycetes MOTUs Pathogen |
description |
The rapid increase in the aquaculture production of salmonids has been followed by a rise in several diseases. In particular, saprolegniosis can account for at least 10% of the annual economic loss in salmonids. In this study, we investigated the main Saprolegnia species involved in saprolegniosis of salmonids in Chile, and their association with specific developmental stages of the host fish. For this purpose, we studied 244 isolates of Saprolegniaaffected Atlantic salmon (Salmo salar), rainbow trout (Oncorhynchus mykiss), and king salmon (Oncorhynchus tshawytscha) from the salmon farming regions, using a recently developed identification strategy based on molecular taxonomical operational units. We found that the Saprolegnia species associated with diseased salmon were Saprolegnia australis, Saprolegnia delica, Saprolegnia diclina, Saprolegnia ferax, Saprolegnia parasitica and two new Saprolegnia species observed during this study. In order to determine whether there were any specific species associationswith different stages in the fish life cycle, we appliedmosaic plots and correspondence analyses for categorical data. These analyses showed a strong association of S. parasitica with samples fromthe adult stage of the fish (χ2 = 196.29, p b 0.0001), while the species S. australis, S. diclina and Saprolegnia sp. 2 were strongly associated with embryonic stages (eggs or alevins) (χ2 = 196.29, p b 0.0001). This work represents the first detailed molecular characterization of Saprolegnia species involved in saprolegniosis in Chile, and the first study showing specific association of different Saprolegnia species with different stages in the salmonid life cycle. This work was supported by grants from Ministerio de Economía y Competitividad of Spain (CGL2012-39357) and Fundación San Ignacio del Huinay, Endesa, Chile (2011HUIN04). Jose V. Sandoval-Sierra was supported by grant from the European Union ITN-SAPRO-238550. Peer Reviewed |
author2 |
Ministerio de Economía y Competitividad (España) |
format |
Article in Journal/Newspaper |
author |
Sandoval Sierra, José Vladimir Latif Eugenin, F. Martín, María P. Zaror, L. Diéguez Uribeondo, Javier |
author_facet |
Sandoval Sierra, José Vladimir Latif Eugenin, F. Martín, María P. Zaror, L. Diéguez Uribeondo, Javier |
author_sort |
Sandoval Sierra, José Vladimir |
title |
Saprolegnia species affecting the salmonid aquaculture in Chile and their associations with fish developmental stage |
title_short |
Saprolegnia species affecting the salmonid aquaculture in Chile and their associations with fish developmental stage |
title_full |
Saprolegnia species affecting the salmonid aquaculture in Chile and their associations with fish developmental stage |
title_fullStr |
Saprolegnia species affecting the salmonid aquaculture in Chile and their associations with fish developmental stage |
title_full_unstemmed |
Saprolegnia species affecting the salmonid aquaculture in Chile and their associations with fish developmental stage |
title_sort |
saprolegnia species affecting the salmonid aquaculture in chile and their associations with fish developmental stage |
publisher |
Elsevier |
publishDate |
2014 |
url |
http://hdl.handle.net/10261/164431 https://doi.org/10.1016/j.aquaculture.2014.09.005 https://doi.org/10.13039/501100003329 |
genre |
Atlantic salmon Salmo salar |
genre_facet |
Atlantic salmon Salmo salar |
op_relation |
#PLACEHOLDER_PARENT_METADATA_VALUE# CGL2012-39357 Postprint Sí doi:10.1016/j.aquaculture.2014.09.005 issn: 0044-8486 Aquaculture 434: 462- 469 (2014) http://hdl.handle.net/10261/164431 http://dx.doi.org/10.13039/501100003329 |
op_rights |
open |
op_doi |
https://doi.org/10.1016/j.aquaculture.2014.09.00510.13039/501100003329 |
container_title |
Aquaculture |
container_volume |
434 |
container_start_page |
462 |
op_container_end_page |
469 |
_version_ |
1790598126626668544 |