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Please use this identifier to cite or link to this item: http://hdl.handle.net/10481/47456

Title: Generalización estructurada: Dinámica evolutiva a escala espacial fina en un sistema generalista
Authors: Valverde Morilla, Francisco Javier
Direction: Gómez Reyes, José María
Perfectti Álvarez, Francisco
Collaborator: Universidad de Granada. Departamento de Ecología
Issue Date: 2017
Submitted Date: 9-Jun-2017
Abstract: The evolution of plant pollination systems is one of the main subjects of debate in the fore of pollination biology. Along the gradient of specializationgeneralization, generalist plants exist in higher frequencies than those expected by some theoretical expectancies. Plants with this pollination system exhibit great spatio-temporal variations in the pollinator assemblage that manifests at different scales, from the populational to the individual level. At the individual level this variation has been considered to be random and extent of any functionality. However, there exist evidences against this thought. We think that generalization might result from a pollinator-mediated evolution in what we have labeled structured generalization. In this hypothesis the individual level of generalization is associated to plant phenotype and genotype as a result of the different preferences of pollinators. The individual generalization will affect to the plant’s reproductive output and result in an assortative mating. Consequently, the populational genetic structure may be affected and phenotypic and genetic divergences may arise if this structure is maintain over time. In this study we explore the basis of the structured generalization from its causes to its effects on the population genetic structure. To do so, we use the generalist plant species Erysimum mediohispanicum (Brassicaceae) as a species model. In a natural population and in two experimental plots we monitorized a series of marked individuals during their flowering time. For each individual plant, we characterized its phenotype and microenvironment and surveyed all plant interactions with its pollinators along the flowering season. Additionally, we genotyped each marked individual as well as part of their progeny. Finally, we characterized the effectiveness of pollination of the different functional groups visiting the flowers of E. mediohispanicum.
Sponsorship: Tesis Univ. Granada. Programa Oficial de Doctorado en: Biología Fundamental y de Sistemas
La presente tesis doctoral se ha desarrollado en los departamentos de Ecología y de Genética de la Universidad de Granada, en colaboración con los laboratorios del ’Leibniz Institute of Plant Genetics and Crop Plant Research’. La investigación realizada ha sido financiada por el Ministerio de Economía y Competitividad (CGL2009-07015), mediante la concesión de una beca predoctoral (BES-2010-030067).
Publisher: Universidad de Granada
Keywords: Biología
Sistemas biológicos
Interacción genotipo-medio ambiente
Fisiología vegetal
Ecología vegetal
UDC: 57
URI: http://hdl.handle.net/10481/47456
ISBN: 9788491633143
Rights : Creative Commons Attribution-NonCommercial-NoDerivs 3.0 License
Citation: Valverde Morilla, F.J. Generalización estructurada: Dinámica evolutiva a escala espacial fina en un sistema generalista. Granada: Universidad de Granada, 2017. [http://hdl.handle.net/10481/47456]
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