Je evoluce genomu předvídatelná? O čem vypovídají opakované adaptace v čeledi brukvovité

Bohutínská, Magdalena

Adaptation, the process of propagation of beneficial mutations, enables populations and species to face changing environmental conditions. Cases of convergent (considered synonym to 'parallel' here) adaptation highlight natural selection's capacity to shape biological diversity, and provide natural replicates to investigate the extent of predictability in the genetic basis of adaptation. Recently, a wealth of genomic studies has identified widespread genomic convergence. However, the evidence has taken many forms, from responses in the same functions but different loci (function-level convergence) down to the precision of repeated adaptation via the same genes (gene reuse), raising a question if such variation can be explained by some unifying force/mechanism. It has been speculated that patterns of genomic convergence differ among studies because the scale of divergence differs from case to case. Yet, this observation has not been tested on a unified model system across a divergence continuum and so underlying factors remain unknown. In my PhD project I conducted an empirical investigation on how and why patterns of genomic convergence change with increasing divergence. To do so, I studied the genomic basis of convergent adaptation to outer (alpine habitats) and inner (whole genome duplication)...

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