Presenter
Ergi Deniz Özsoy
Ergi Deniz Özsoy, was born in Hannover in 1967. Özsoy graduated from Hacettepe University, Faculty of Science, Department of Biology in 1993 and became a science specialist in 1996 by submitting his master’s thesis in the same department. In 2002, he completed his PhD at Hacettepe University, Department of Biology. He completed her doctoral experiments at the Population Genetics Unit of the Genetics Department of Groningen University with a TÜBİTAK scholarship. In 2000 and 2002, he studied statistical genetics at the University of North Carolina. From 2004 onwards, he worked in the laboratory of Trudy Mackay in quantitative genetics and genomics at the same university for various periods. In 2010, she was a Fullbright Scholar at the Department of Ecology and Evolutionary Biology, University of California, San Diego. He is currently working on the complex genetics and genomics of genotype-phenotype relationships using an evolutionary genetics perspective within the framework of Drosophila models at Hacettepe University, Department of Biology. In addition, he is working on exercise genetics and genomics, developmental genetics and investigating the relationship between genetic variation in the genome and various genetically based diseases. His research interests include evolutionary biology, genetics, genomics and quantitative genetics. Özsoy is also interested in the history of evolutionary biology, philosophy of evolution and philosophy of biology. He has published articles on these subjects in Turkey and abroad.
Özet
The amount of genetic diversity a species possesses is generally thought to result from the accumulation of neutral (selectionally equivalent) mutations. According to the theory of neutral evolution, there should be a linear relationship between heterozygosity (genetic diversity) resulting from the accumulation of neutral mutations by genetic drift and the effective size of populations: as population size increases, the probability of accumulation of neutral mutations increases, and the level of genomic heterozygosity is directly proportional to population size. However, as the analysis of Richard Lewontin, the great evolutionary geneticist of our time, points out for the first time in all clarity, this relationship may be based on an illusion, and many studies point to many species with large population-low genetic variation or low genetic variation large population sizes, and many intraspecific (interpopulation) differences. This contradiction between population size and neutral genetic variation – referred to in the evolutionary biology literature as the Lewontin Paradox – is a challenging problem in evolutionary biology and a subject of active research. In this talk, modern studies and approaches pointing to the solution of Lewontin’s paradox will be summarised in the extended context of the classical Hill-Robertson effect, with emphasis on the process of “linked selection”.
Date: August 8th 2020 – 18:00 (GMT+3)
Language: Turkish
To register the webinar, you can visit this link: :
https://www.bigmarker.com/bioinfonet/Lewontin-Paradoksu-ve-Dusundurdukleri
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