G. Ylla

Welcome to my personal evolving virtual space.

About me:

Currently, I am a postdoc at the Department of Organismic and Evolutionary Biology at Harvard University. I have a strong background in biology and evolution combined with computational skills acquired through my M.Sc. in Biotechnology (UVic, 2012), B.Sc. in Omics Data Analysis (UVic, 2014), Ph.D. in Biomedicine (UPF, 2017) and a first postdoc at computational Lab at the University of Florida (2018).

My Research Interests


Evolution is, ultimately, the explanation of all biological processes and biodiversity. Any piece of biology one can now observe, from sloth slowly climbing a cecropia tree in Costa Rica to any human diseases, has, in the end, an evolutionary explanation. Nevertheless, and here relies upon the grandeur of evolution, it is absolutely unpredictable and dependent on chance. Randomness and natural selection made us who we are.

Gene Expression Regulatory Networks

The sequencing of the first human genome was certainly one of the most remarkable scientific breakthroughs of the century. Also, a big disappointment. The sequencing of the first human genome, and the hundreds of genomes that followed made us realize that we were exploring just the tip of the iceberg. Like trying to explain the insect metamorphosis comparing the genomes of a caterpillars and a butterfly -which is the same specimen- the genome alone was not enough to explain most of the diseases, not even the characteristics that make us unique. We must then understand how the genome is regulated or, what’s the same, how the gene regulatory networks us the genome to produce the phenotype.


Bioinformatics is merely a tool. A big and powerful tool, a way to interact with biological data, a way to make questions to genomes, a way to understand the gene expression, a tool which must be used correctly.