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Speciation Genomics

Speciation Genomics
Hybridization has been a controversial topic in evolution and more precisely in speciation. Dating back to Linnaeus in 1759, different opinions concerning the role that hybridization can play in the evolution and origin of species have been debated. According to some researchers hybridization is an evolutionary dead end, but others suggest it has a creative role to play. New research addressing
...this issue has been carried out in the last decades, showing that such a process is not as rare as thought previously. More species have been found to possess in their genome, traces of hybridization events accrued during their evolution, leading to questions as to what extent hybridization is a widespread evolutionary process and what is its role in speciation. My research focuses on the genetic structure within a hybrid species (Passer italiae) in relation to local adaptation processes and its future evolutionary potential. In order to address my research questions I am working with high-throughput sequencing data obtained by RAD-tag sequencing, a reduced representation sequencing method that uses Restriction-site Associated Digestion to provide short reads randomly distributed along the genome. With the support from NBS I had the opportunity to attend two excellent and highly relevant courses that allowed me to improve skills and share my project with experts in the field.



The course in RAD-Sequencing analyses and data interpretation, which took place from the 5th to 9th of October 2015 at Lund University, was run by The Graduate Research School in Genomic Ecology (GENECO), an interdisciplinary graduate school for PhD students in the fields of Genomics. The course was given by the developers of the software STACKS; Julian Catchet, University of Illinois, and William Cresko, University of Oregon. The course was based on an in-depth approach to the analysis of Rad-tag data using STACKS, with a main focus on population genomics. STACKS is a software pipeline d
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