About
Contact
Help
Sending publications
How to publish
Advanced Search
View Item 
  •   Home
  • Facultad de Ciencias Veterinarias y Pecuarias
  • Artículos de revistas
  • View Item
  •   Home
  • Facultad de Ciencias Veterinarias y Pecuarias
  • Artículos de revistas
  • View Item
JavaScript is disabled for your browser. Some features of this site may not work without it.

Browse byCommunities and CollectionsDateAuthorsTitlesSubjectsThis CollectionDateAuthorsTitlesSubjects

My Account

Login to my accountRegister
Biblioteca Digital - Universidad de Chile
Revistas Chilenas
Repositorios Latinoamericanos
Tesis LatinoAmericanas
Tesis chilenas
Related linksRegistry of Open Access RepositoriesOpenDOARGoogle scholarCOREBASE
My Account
Login to my accountRegister

Complex spatial genetic connectivity of mussels mytilus chilensis along the Southeastern Pacif Coast and its importance for resource management

Artículo
Thumbnail
Open/Download
IconCOMPLEX-SPATIAL-GENETIC.pdf (151.9Kb)
Access note
Acceso a solo metadatos
Publication date
2020
Metadata
Show full item record
Cómo citar
Astorga, Marcela
Cómo citar
Complex spatial genetic connectivity of mussels mytilus chilensis along the Southeastern Pacif Coast and its importance for resource management
.
Copiar
Cerrar

Author
  • Astorga, Marcela;
  • Cárdenas, Leyla;
  • Pérez, Montse;
  • Toro, Jorge;
  • Martínez Moncada, Víctor;
  • Farías, Ana;
  • Uriarte, Iker;
Abstract
To ensure the maintenance of natural mussel beds along the southeastern Pacific coast of Chile, it is important to understand their population dynamics. This means evaluating their genetic population structure and gene flow, and the degree of connectivity among natural beds. To do this, the spatial genetic population structure of seven natural Mytilus chilensis beds within the mussels' present distribution range along the Chilean coast was evaluated. Genetic differences were established between populations with cytochrome oxidase I (COD gene sequences (Fst = 0.099) and microsatellites (Fst = 0.048), showing that locations that consistently presented greater differentiation were those at the extremes of the geographical distribution. An "isolation by distance" pattern was not observed in the COI and microsatellite data. We suggest that because of the high resolution of these markers, the differences between locations may be explained by high reproductive variance, which determines local changes in each reproductive cycle of the species. These changes would account for the differences between the natural beds. Furthermore, differentiated genetic types were observed in some locations, demonstrating the presence of local processes in some cases, perhaps caused by gene flow restrictions resulting from the local geomorphological and oceanographic conditions. The gene structure and connectivity of natural beds in sessile species with larval dispersion are strongly determined by local retention characteristics. For this reason, the data generated in this study can be used to improve population management. These data can also be used to support and motivate the creation of a marine protected area containing natural beds of this species with sufficient levels of genetic diversity.
Patrocinador
Innova-Corfo Fund 07CN13PPD240 Comision Nacional de Investigacion Cientifica y Tecnologica (CONICYT) CONICYT FONDECYT 1170591
Indexation
Artículo de publicación ISI
 
Artículo de publicación SCOPUS
 
Identifier
URI: https://repositorio.uchile.cl/handle/2250/174998
DOI: 10.2983/035.039.0108
Quote Item
Journal of Shellfish Research 39 (2020):76-85
Collections
  • Artículos de revistas
xmlui.footer.title
31 participating institutions
More than 73,000 publications
More than 110,000 topics
More than 75,000 authors
Published in the repository
  • How to publish
  • Definitions
  • Copyright
  • Frequent questions
Documents
  • Dating Guide
  • Thesis authorization
  • Document authorization
  • How to prepare a thesis (PDF)
Services
  • Digital library
  • Chilean academic journals portal
  • Latin American Repository Network
  • Latin American theses
  • Chilean theses
Dirección de Servicios de Información y Bibliotecas (SISIB)
Universidad de Chile

© 2020 DSpace
  • Access my account