Welcome to IBS 8012!eco eto S80Integrated Evolutionary gyProcesses“S i th liht f lti bil“Seen in the light of evolution, biology is, perhaps, intellectually the most satisfying and inspiring science. Without that light it becomes a pile ofWithout that light it becomes a pile of sundry facts some of them interesting or curious but making no meaningful picture as a whole”picture as a wholeDobzhansky, T. 1973.Nothing makes sense except in the light of evolution. American Biology Teacher 35:125-129Evolution is the interplay between two tldbktangled banksNatural turbulence Genetic turbulenceHd dti lti ?How does adaptive evolution occur?Descent with modificationDescent with modificationEssential components of the evolutionary process?• Differences among individuals• Genetically based variationSti i t•Sorting among variants• Changes in the proportions of individuals in populationspopulations• Divergence•SpeciationpWhy is evolution integrative?Why is evolution integrative?All organisms and features of organisms are i t f it illgrist for its mill•Genes and genome•Genes and genome• Proteins• Biochemical reactionsHistorical perspectivePredictive• Cells• PhysiologyHistorical perspectiveWhat are the pathways and What evolutionary trajectory do we expect ithft ?• Morphology• Behavior•Ecologypyprocess that led to characteristics of i?in the future?•Ecology• Role in ecosystemsorganisms?Questions of Evolutionary BiologyEssential components of the evolutionary process•Differences among individualse e ces a o g d dua s• Genetically based variation• Sorting among variants• Changes in the proportions of individuals in populationsChanges in population dynamics•Changes in population dynamics• Divergence•SpeciationSpeciationTwo major objectives of evolutionary biologyygy• Describing and analyzing the history of evolutionevolution• Paleontology• SystematicsG•Genetics• Analyzing the causes and mechanisms of evolutionevolution• Genetics • Molecular biologyEl•EcologyWhy is evolution integrative?Why is evolution integrative?Conceptual rather than strictly factual• Aims to explain everything about the living worldworld• Knowledge from all biological disciplines is relevant to an understanding of evolutiong• Evolutionary analyses illuminates all fields of biologyWhy is evolution integrative?What kind of data?• Historical record• Fossils•Genes•Genes• Comparisons between patterns and those predicted by hypothesespyyp• Observations• Mathematical models•Based on experiments•Based on experiments• Genetic manipulations• Lab• FieldWhat evolutionary questions are relevant to your thesis research?yLink to the