Schwerpunktprogramm (SPP) 1529:  Evolutionary plant solutions to ecological challenges: Molecular mechanisms underlying adaptive traits in the Brassicaceae s.l. (Adaptomics), The role of biotic interactions in determining phenotypic and genotypic variation in metal hyperaccumulation and hypertolerance in two model Brassicaceae species

Description: Metal hyperaccumulation is a common trait in many Brassicaceae species. However, neither its ecological consequences nor the role of ecological interactions on natural trait variation have been studied. Here, we address this aspect with a novel conceptual model. We focus on two genetic model species (Arabidopsis halleri, Noccaea caerulescens) for utilizing the molecular knowledge about then and for providing foundations for future genetic work. We combine field and greenhouse studies, high-end molecular tools, population genetic methods and experimental approaches of community ecology. Specifically, we want to disentangle the role of genetic factors and variation in negative and positive plantplant interactions for the evolution of variability in metal hyperaccumulation between and within populations. Vice-versa, we will investigate the role of this trait for determining the type of biotic interactions dominating within natural populations and communities. We hypothesize that a tradeoff between competitive abilities and stress tolerance exists in this system, affecting the performance of individual plants and determining the extent of population genetic and phenotypic variation. We furthermore hypothesize that facilitation in populations and communities with metal accumulating plants will positively affect genetic diversity within the populations, especially under stressful conditions.

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Origins: /Bund/UBA/UFORDAT

Tags: Pflanzenökologie ? Pflanzensoziologie ? Populationsökologie ? Synökologie ? Genotyp ? Pflanzengenetik ? Genetik ? Gewächshaus ? Ökologische Potenz ? Belastungsfaktor ? Pflanzenart ? Pflanzenbestand ? Stress ? Metall ? Biologische Konkurrenz ? Pflanzengesellschaft ? Biotischer Faktor ? Schwermetallakkumulation ? Evolution ? Studie ? Feldstudie ? Kausalzusammenhang ? Ökologische Wirksamkeit ? Phänotyp ? Genetische Vielfalt ? Population ? Wettbewerbsfähigkeit ? Biodiversität ? Diversität ? Art [Spezies] ? Brassicaceae ? Interaktionsanalyse ? Noccaea caerulescens ? Pflanzenerbgut ? Arabidopsis halleri ?

Region: Baden-Württemberg

Bounding boxes: 9° .. 9° x 48.5° .. 48.5°

License: cc-by-nc-nd/4.0

Language: Englisch/English

Organisations

• Deutsche Forschungsgemeinschaft (Finanzielle Förderung)
• Eberhard Karls Universität Tübingen, Fachbereich Biologie, Institut für Evolution und Ökologie, Abteilung Vegetationsökologie (Projektverantwortung)
• Umweltbundesamt (Bereitstellung)
• Universität Bayreuth, Fachgruppe Biologie, Bayreuther Zentrum für Ökologie und Umweltforschung (BayCEER), Lehrstuhl für Pflanzenphysiologie (Mitwirkung)
• Universität Bielefeld, Fakultät für Biologie (Mitwirkung)
• Universität Bochum, Lehrstuhl für Pflanzenphysiologie (Mitwirkung)

Time ranges: 2011-07-06 - 2014-12-31

Status

Aktiv

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