.... Studies in spiders such as Parasteatoda tepidariorum have provided insights into the gene regulatory network (GRN) underlying segment addition, and revealed that Wnt8 is required for dynamic Delta ( Dl ) expression associated with the formation of new segments. However, it remains unclear how...

...Maarten Hilbrant; Wim G. M. Damen; Alistair P. McGregor Spiders belong to the chelicerates, which is an arthropod group that branches basally from myriapods, crustaceans and insects. Spiders are thus useful models with which to investigate whether aspects of development are ancestral or derived...