Range-wide population genetics of Linum Suffruticosum S. L., an heterostylous polyploid and taxonomic complex

Linum suffruticosum L. s.l. (Linaceae) is a taxonomic complex widespread in the western Mediterranean basin. It is characterized by its high cytogenetic diversity and its 3D heterostyly system, which makes it an obligate outcrosser. In this work we studied the patterns of genetic diversity and popul...

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Autor: Vanrell Bosch, Maria Antònia
Tipo de recurso: tesis de maestría
Estado:Versión publicada
Fecha de publicación:2022
País:España
Institución:Universidad de Sevilla (US)
Repositorio:idUS. Depósito de Investigación de la Universidad de Sevilla
OAI Identifier:oai:idus.us.es:11441/159395
Acceso en línea:https://hdl.handle.net/11441/159395
Access Level:acceso abierto
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spelling Range-wide population genetics of Linum Suffruticosum S. L., an heterostylous polyploid and taxonomic complexVanrell Bosch, Maria AntòniaLinum suffruticosum L. s.l. (Linaceae) is a taxonomic complex widespread in the western Mediterranean basin. It is characterized by its high cytogenetic diversity and its 3D heterostyly system, which makes it an obligate outcrosser. In this work we studied the patterns of genetic diversity and population structure throughout its distribution using neutral genetic data obtained from microsatellite markers. It is shown that there is no relationship between taxonomic treatment and genetic variability, so a revision of the taxonomy would be useful. L. suffruticosum s.l. has a high level of genetic diversity, promoted by polyploidization processes, and maintained by the existence of abundant and reproductively connected populations. The populations are genetically structured following a pattern of isolation by distance, with the Rif mountains as the most important genetic barrier. However, genetic diversity does not covary at the latitudinal or altitudinal level, nor is it related to population size or the proportion of stylar morphs. This suggests that variations in genetic diversity are not mostly determined by selective forces, but by stochastic processes.Linum suffruticosum L. s.l. (Linaceae) es un complejo taxonómico ampliamente extendido en la cuenca mediterránea occidental. Se caracteriza por su alta diversidad citogenética y su sistema de heterostília en 3D, lo que lo convierte en un outcrosser obligado. En este trabajo se estudian los patrones de diversidad genética y estructura poblacional a lo largo de su distribución utilizando datos genéticos neutros obtenidos a partir de marcadores de microsatélites. Se ha demostrado que no existe relación entre el tratamiento taxonómico y la variabilidad genética, por lo que sería útil una revisión de la taxonomía. L. suffruticosum s.l. presenta una elevada diversidad genética, promovida por procesos de poliploidización, y mantenida por la existencia de poblaciones abundantes y conectadas reproductivamente. Las poblaciones están estructuradas genéticamente siguiendo un patrón de aislamiento por distancia, con las montañas del Rif como la barrera genética más importante. Sin embargo, la diversidad genética no covaría con la latitud o la altitud, ni está relacionada con el tamaño de la población o la proporción de morfos estilares. Esto sugiere que las variaciones en la diversidad genética no están determinadas principalmente por fuerzas selectivas, sino por procesos estocásticos.Máster Universitario en Biología Avanzada: Investigación y AplicaciónArroyo Marín, JuanSimón Porcar, VioletaBiología Vegetal y Ecología2022info:eu-repo/semantics/masterThesisinfo:eu-repo/semantics/publishedVersionapplication/pdfapplication/pdfhttps://hdl.handle.net/11441/159395reponame:idUS. Depósito de Investigación de la Universidad de Sevillainstname:Universidad de Sevilla (US)EspañolInglésinfo:eu-repo/semantics/openAccessoai:idus.us.es:11441/1593952026-06-17T12:51:07Z
dc.title.none.fl_str_mv Range-wide population genetics of Linum Suffruticosum S. L., an heterostylous polyploid and taxonomic complex
title Range-wide population genetics of Linum Suffruticosum S. L., an heterostylous polyploid and taxonomic complex
spellingShingle Range-wide population genetics of Linum Suffruticosum S. L., an heterostylous polyploid and taxonomic complex
Vanrell Bosch, Maria Antònia
title_short Range-wide population genetics of Linum Suffruticosum S. L., an heterostylous polyploid and taxonomic complex
title_full Range-wide population genetics of Linum Suffruticosum S. L., an heterostylous polyploid and taxonomic complex
title_fullStr Range-wide population genetics of Linum Suffruticosum S. L., an heterostylous polyploid and taxonomic complex
title_full_unstemmed Range-wide population genetics of Linum Suffruticosum S. L., an heterostylous polyploid and taxonomic complex
title_sort Range-wide population genetics of Linum Suffruticosum S. L., an heterostylous polyploid and taxonomic complex
dc.creator.none.fl_str_mv Vanrell Bosch, Maria Antònia
author Vanrell Bosch, Maria Antònia
author_facet Vanrell Bosch, Maria Antònia
author_role author
dc.contributor.none.fl_str_mv Arroyo Marín, Juan
Simón Porcar, Violeta
Biología Vegetal y Ecología
description Linum suffruticosum L. s.l. (Linaceae) is a taxonomic complex widespread in the western Mediterranean basin. It is characterized by its high cytogenetic diversity and its 3D heterostyly system, which makes it an obligate outcrosser. In this work we studied the patterns of genetic diversity and population structure throughout its distribution using neutral genetic data obtained from microsatellite markers. It is shown that there is no relationship between taxonomic treatment and genetic variability, so a revision of the taxonomy would be useful. L. suffruticosum s.l. has a high level of genetic diversity, promoted by polyploidization processes, and maintained by the existence of abundant and reproductively connected populations. The populations are genetically structured following a pattern of isolation by distance, with the Rif mountains as the most important genetic barrier. However, genetic diversity does not covary at the latitudinal or altitudinal level, nor is it related to population size or the proportion of stylar morphs. This suggests that variations in genetic diversity are not mostly determined by selective forces, but by stochastic processes.
publishDate 2022
dc.date.none.fl_str_mv 2022
dc.type.none.fl_str_mv info:eu-repo/semantics/masterThesis
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format masterThesis
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dc.identifier.none.fl_str_mv https://hdl.handle.net/11441/159395
url https://hdl.handle.net/11441/159395
dc.language.none.fl_str_mv Español
Inglés
language_invalid_str_mv Español
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
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instname:Universidad de Sevilla (US)
instname_str Universidad de Sevilla (US)
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collection idUS. Depósito de Investigación de la Universidad de Sevilla
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score 15.301603

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