Luisa Pallares
Evolutionary Genomics of Complex Traits
Friedrich Miescher Laboratory
Faculty in: TIPP, IMPRS
Vita
- PhD at MPI for Evolutionary Biology, Plön, 2015
- Postdoctoral Researcher, MPI for Evolutionary Biology, Plön, 2015-2016
- HFSP Postdoctoral Fellow, Princeton University, USA, 2016-2021
- Max Planck Research Group Leader at the FML since February 2022
Research Interest
Our research focuses on understanding the genetic basis of between-individual variation in complex traits – traits that are regulated by a large number of genomic loci (see Tautz, Reeves, & Pallares 2020) - and how such complex genetic architectures, instead of being static properties of a trait, get re-shaped when populations are exposed to different environments (genotype-by-environment interactions or GxE, see Pallares et. al. Nat Gen 2023). To explore these questions within the context of natural genetic variation, we use wild-derived outbred Drosophila melanogaster populations as model system. We integrate experimental and analytical tools across the fields of quantitative and population genetics, molecular and computational biology, and use experimental evolution to generate and analyze large-scale genomics datasets.
In addition to our interest in the genetic basis of morphological (see Pallares et. al., PLoS Gen 2015) and transcriptional variation (Pallares et. al. bioRxiv), we are particularly interested in understanding if/how phenotypic robustness is regulated in such traits (Wolf et. al. PLoS Gen 2023). That is, we aim to understand not only why individuals in a population look different from each other, but also why some individuals are more vulnerable than others when exposed to stressful/new environments. For this, we study the genetic regulation of phenotypic variance as a proxy for robustness, and aim to understand the role of such loci in the adaptation process.
Conceptually, our research tackles long-standing questions in evolutionary biology including the genotype-phenotype map and its context-dependent nature, and the (apparent) conflict between robustness and evolvability.
Available PhD projects
- Currently not recruiting PhD students
Selected Reading
- Tautz D, Reeves RG, Pallares LF. (2020) The New (Old) Genetics, Halle, eds. Wittinghofer, A. and Jäckle, H., NAL-live 2020.1, v2.0 https://public.bibliothek.uni-halle.de/nal-live/article/view/2895
- Pallares LF*, Lea AJ*, Han C, Filippova EV, Andolfatto P, Ayroles JF. 2023. Dietary stress remodels the genetic architecture of lifespan variation in outbred Drosophila. Nat Genet 55, 123–129. https://www.nature.com/articles/s41588-022-01246-1
- Pallares LF, Carbonetto P, Gopalakrishnan S, Parker CC, Ackert-Bicknell CL, Palmer AA, Tautz D. (2015) Mapping of craniofacial traits in outbred mice identifies major developmental genes involved in shape determination. PLoS Genetics 11(11): e1005607, https://doi.org/10.1371/journal.pgen.1005607
- Pallares LF, Melo D, Wolf S, Cofer EM, Abhyankar V, Peng J, Ayroles JF. Saturating the eQTL map in Drosophila melanogaster: genome-wide patterns of cis and trans regulation of transcriptional variation in outbred populations. https://www.biorxiv.org/content/10.1101/2023.05.20.541576v3
- Wolf S, Melo D, Garske KM, Pallares LF, Lea AJ, Ayroles JF. (2023) Characterizing the landscape of gene expression variance in humans. PLOS Genet, 19(7):e1010833. https://journals.plos.org/plosgenetics/article?id=10.1371/journal.pgen.1010833