I am fascinated about genomes, their organisation on various levels and how they work and change over time. I am investigating how chromosomal rearrangements affect the 3D genome architecture and recombination in Ithomiini butterflies. Central to my work is Hi-C analysis to identify topologically associating domains (TADs) and chromatin compartments, testing whether chromosomal breakpoints disrupt these structures and influence recombination patterns. 
Image Credit: Eva van der Heijden, Wellcome Sanger Institute
Image Credit: Eva van der Heijden, Wellcome Sanger Institute

Chromosomal rearrangements remodel the chromosomes and can fundamentally change the  proximity of genetic loci, order, orientation of chromosomes. Much remains to be discovered about how chromosomal rearrangements influence gene interactions and recombination rates. The Neotropical butterfly tribe Ithomiini (family Nymphalidae, order Lepidoptera) offers an ideal system to address this knowledge gap, as its over 400 species that show extensive chromosomal rearrangements.

The high rates of chromosomal rearrangements that Ithomiini have is thought to drive their rapid diversification. The recombination landscape which contributes to the m aintenance of genetic diversity in populations has also been shown to be when chromosomal rearrangements occur.

In my project, I seek to find out whether large scale chromosomal fusions and fissions disrupt conserved chromatin structures like TADs and chromosomal compartments, and how these disruptions might affect gene expression and recombination patterns that could drive speciation. I employ  Hi-C contact mapping and other computational analyses to visualize and quantify chromatin architecture and recombination rates.

Looking forward, I am interested in expanding my understanding of how genome organization influences adaptation and speciation. I am also motivated to improve my bioinformatics skills and continue developing computational expertise and analytical approaches that enable rigorous investigation of complex genomic questions.

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