Convergent deployment of ancestral functions during the evolution of mammalian flight membranes
Year: 2023
Type: article
Abstract: Lateral flight membranes, or patagia, have evolved repeatedly in diverse mammalian lineages. While little is known about patagium development, its recurrent evolution may suggest a shared molecular basis. By combining transcriptomics, developmental experiments, and mouse transgenics, we demonstrate that lateral WNT5A expression in the marsupial sugar glider ( Petaurus breviceps ) promotes the differentiation of its patagium primordium. We further show that this function of WNT5A reprises ancestral roles in skin morphogenesis predating mammalian flight and has been convergently employed during patagium evolution in eutherian bats. Moreover, we find that many genes involved in limb development have been re-deployed during patagium outgrowth in both the sugar glider and bat. Taken together, our findings reveal that deeply conserved molecular toolkits underpin the evolutionary transition to flight in mammals.
Source: Science Advances
Language: English
Subfield: Molecular Biology
Domain: Life Sciences
Open Access status: gold
Estimated APC paid: $4,500
Awards: How to build a gliding mammal: Using natural phenotypic variation to define the molecular regulation of tissue morphogenesis, Multiscale Models of Wound Cell Plasticity for Regeneration, Blastema-independent Mechanism for Regeneration in Salamanders, Using naturally evolved phenotypic variation to decipher the positional regulatory code of mammalian skin, Skin Biology Resource-Based Center at UCI, Tissue Size and Precision Control in Growing Hair Follicles
OpenAlex ID: W4360828754
