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Role fenotypové plasticity, genetické a epigenetické diferenciace u ekofyziologických znaků druhu Festuca rubra L. v reakci na klimatické změny / Role of phenotypic plasticity, genetic and epigenetic differentiation in ecophysiological traits of Festuca rubra L. in response to climate change

Understanding the ability of species to respond to climate change is essential for prediction of their future distribution. When migration is not adequate, reaction via phenotypic plasticity and/or genetic/epigenetic adaptation is necessary. The main aim of this study is to determine mechanisms of response to climate change in dominant grass species Festuca rubra. The study used reciprocal transplant experiment with growth chambers simulating different climatic conditions. Original localities in western Norway represent factorially crossed gradients of temperatures and precipitations, thus it was possible to study the effect of temperature and moisture separately as well as combined. In first part of the experiment, plastic responses were separated from genetic differentiation. To do this, plants with different genotypes from original localities were transplanted to growth chambers set to simulating temperature and moisture course in the four extreme localities (wettest and driest combined with warmest and coldest). After five months, ecophysiological photosynthetic-related traits were measured. These traits are important for species ability to adapt and maintain high fitness and thus they are essential for plants function. Specifically, it was net photosynthetic rate (PN), fluorescence of...

Identiferoai:union.ndltd.org:nusl.cz/oai:invenio.nusl.cz:367797
Date January 2017
CreatorsKoláříková, Veronika
ContributorsMünzbergová, Zuzana, Schnablová, Renata
Source SetsCzech ETDs
LanguageEnglish
Detected LanguageEnglish
Typeinfo:eu-repo/semantics/masterThesis
Rightsinfo:eu-repo/semantics/restrictedAccess

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