Phylogeography Gene Flow and Population Structure of "Crambe Crambe" (Porifera: Poecilosclerida)

The main goal of this thesis has been to study the population structure of a marine sponge species (<i>Crambe crambe</i>) at different geographic levels using different molecular markers.<br/><br/>In many organisms, particularly terrestrials, molecular markers have been used...

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Autor: Duran i Alarcon, Sandra
Tipo de recurso: tesis doctoral
Estado:Versión publicada
Fecha de publicación:2003
País:España
Institución:CBUC, CESCA
Repositorio:TDR. Tesis Doctorales en Red
OAI Identifier:oai:www.tdx.cat:10803/780
Acceso en línea:http://www.tdx.cat/TDX-1222103-130009
http://hdl.handle.net/10803/780
Access Level:acceso abierto
Palabra clave:Marcadors moleculars
Invertebrats marins
Esponges
Ciències Experimentals i Matemàtiques
59
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spelling Phylogeography Gene Flow and Population Structure of "Crambe Crambe" (Porifera: Poecilosclerida)Duran i Alarcon, SandraMarcadors molecularsInvertebrats marinsEspongesCiències Experimentals i Matemàtiques59The main goal of this thesis has been to study the population structure of a marine sponge species (<i>Crambe crambe</i>) at different geographic levels using different molecular markers.<br/><br/>In many organisms, particularly terrestrials, molecular markers have been used to answer questions about the structure and connectivity of populations, the potential of dispersal or the history of species, and these data were of crucial help in conservation and management of species. Most of these studies used allozymes and, more recently, mitochondrial or nuclear sequences with success. Also, microsatellite markers are being developed and applied with terrific success in many species. Unfortunately, application of molecular markers in marine environments lags much behind, especially for invertebrate organisms, where population genetic studies are still scarce and most of them involve only allozymes. Thus, this study attempts to be contribute to the development and application of molecular markers for ecologic and population genetic studies in marine invertebrates.<br/> Most marine invertebrate organisms are benthic, and many of them sessile, with larvae as the main form of dispersal. Because of the intrinsic difficulty on following larval movements in natural environments, molecular markers appear as the perfect tool to track and characterize populations, and even individuals. <br/>Hence, in this thesis several molecular markers have been applied in a sponge species, and with the complementary help of previous ecological and biological knowledge of the species, the present-day population structure of this sponge has been studied, trying to uncover which factors are affecting and might have affected in the past the structure found, while comparing the resolution and the "snapshot" information recovered with each of the markers used.Universitat de BarcelonaTuron Barrera, XavierPascual Berniola, MartaUniversitat de Barcelona. Departament de Biologia Animal2011200320032003info:eu-repo/semantics/doctoralThesisinfo:eu-repo/semantics/publishedVersionapplication/pdfapplication/pdfhttp://www.tdx.cat/TDX-1222103-130009http://hdl.handle.net/10803/780TDX (Tesis Doctorals en Xarxa)reponame:TDR. Tesis Doctorales en Redinstname:CBUC, CESCAInglésADVERTIMENT. L'accés als continguts d'aquesta tesi doctoral i la seva utilització ha de respectar els drets de la persona autora. Pot ser utilitzada per a consulta o estudi personal, així com en activitats o materials d'investigació i docència en els termes establerts a l'art. 32 del Text Refós de la Llei de Propietat Intel·lectual (RDL 1/1996). Per altres utilitzacions es requereix l'autorització prèvia i expressa de la persona autora. En qualsevol cas, en la utilització dels seus continguts caldrà indicar de forma clara el nom i cognoms de la persona autora i el títol de la tesi doctoral. No s'autoritza la seva reproducció o altres formes d'explotació efectuades amb finalitats de lucre ni la seva comunicació pública des d'un lloc aliè al servei TDX. Tampoc s'autoritza la presentació del seu contingut en una finestra o marc aliè a TDX (framing). Aquesta reserva de drets afecta tant als continguts de la tesi com als seus resums i índexs.info:eu-repo/semantics/openAccessoai:www.tdx.cat:10803/7802026-06-14T12:46:07Z
dc.title.none.fl_str_mv Phylogeography Gene Flow and Population Structure of "Crambe Crambe" (Porifera: Poecilosclerida)
title Phylogeography Gene Flow and Population Structure of "Crambe Crambe" (Porifera: Poecilosclerida)
spellingShingle Phylogeography Gene Flow and Population Structure of "Crambe Crambe" (Porifera: Poecilosclerida)
Duran i Alarcon, Sandra
Marcadors moleculars
Invertebrats marins
Esponges
Ciències Experimentals i Matemàtiques
59
title_short Phylogeography Gene Flow and Population Structure of "Crambe Crambe" (Porifera: Poecilosclerida)
title_full Phylogeography Gene Flow and Population Structure of "Crambe Crambe" (Porifera: Poecilosclerida)
title_fullStr Phylogeography Gene Flow and Population Structure of "Crambe Crambe" (Porifera: Poecilosclerida)
title_full_unstemmed Phylogeography Gene Flow and Population Structure of "Crambe Crambe" (Porifera: Poecilosclerida)
title_sort Phylogeography Gene Flow and Population Structure of "Crambe Crambe" (Porifera: Poecilosclerida)
dc.creator.none.fl_str_mv Duran i Alarcon, Sandra
author Duran i Alarcon, Sandra
author_facet Duran i Alarcon, Sandra
author_role author
dc.contributor.none.fl_str_mv Turon Barrera, Xavier
Pascual Berniola, Marta
Universitat de Barcelona. Departament de Biologia Animal
dc.subject.none.fl_str_mv Marcadors moleculars
Invertebrats marins
Esponges
Ciències Experimentals i Matemàtiques
59
topic Marcadors moleculars
Invertebrats marins
Esponges
Ciències Experimentals i Matemàtiques
59
description The main goal of this thesis has been to study the population structure of a marine sponge species (<i>Crambe crambe</i>) at different geographic levels using different molecular markers.<br/><br/>In many organisms, particularly terrestrials, molecular markers have been used to answer questions about the structure and connectivity of populations, the potential of dispersal or the history of species, and these data were of crucial help in conservation and management of species. Most of these studies used allozymes and, more recently, mitochondrial or nuclear sequences with success. Also, microsatellite markers are being developed and applied with terrific success in many species. Unfortunately, application of molecular markers in marine environments lags much behind, especially for invertebrate organisms, where population genetic studies are still scarce and most of them involve only allozymes. Thus, this study attempts to be contribute to the development and application of molecular markers for ecologic and population genetic studies in marine invertebrates.<br/> Most marine invertebrate organisms are benthic, and many of them sessile, with larvae as the main form of dispersal. Because of the intrinsic difficulty on following larval movements in natural environments, molecular markers appear as the perfect tool to track and characterize populations, and even individuals. <br/>Hence, in this thesis several molecular markers have been applied in a sponge species, and with the complementary help of previous ecological and biological knowledge of the species, the present-day population structure of this sponge has been studied, trying to uncover which factors are affecting and might have affected in the past the structure found, while comparing the resolution and the "snapshot" information recovered with each of the markers used.
publishDate 2003
dc.date.none.fl_str_mv 2003
2003
2003
2011
dc.type.none.fl_str_mv info:eu-repo/semantics/doctoralThesis
info:eu-repo/semantics/publishedVersion
format doctoralThesis
status_str publishedVersion
dc.identifier.none.fl_str_mv http://www.tdx.cat/TDX-1222103-130009
http://hdl.handle.net/10803/780
url http://www.tdx.cat/TDX-1222103-130009
http://hdl.handle.net/10803/780
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Universitat de Barcelona
publisher.none.fl_str_mv Universitat de Barcelona
dc.source.none.fl_str_mv TDX (Tesis Doctorals en Xarxa)
reponame:TDR. Tesis Doctorales en Red
instname:CBUC, CESCA
instname_str CBUC, CESCA
reponame_str TDR. Tesis Doctorales en Red
collection TDR. Tesis Doctorales en Red
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15.300719

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