This fully funded PhD project aims to compare the gene regulatory networks (GRNs) that drive leg development and regeneration in the crustacean model
Parhyale hawaiensis. Our team has already established transgenic, live imaging and genomics approaches to study leg regeneration in
Parhyale (see
Paris et al, 2022). We have previously shown that although regeneration produces faithful replicas of the original legs (
Almazan et al. 2022), the transcriptional and cellular dynamics associated with leg development and regeneration are different (
Sinigaglia et al. 2022). These results suggest that identical structures could be generated by distinct mechanisms during development and regeneration. The recruited PhD student will take a single-cell omics approach to explore this question, by comparing the GRNs that underpin leg development and regeneration.
The project will involve both experimental and computational work, including generating scRNAseq and scATACseq data from developing and regenerating legs, computational processing of these data to reconstruct and compare GRNs, and transgenesis to validate key GRN nodes in vivo.