In 1978, Temtamy and McKusick classified isolated, non-syndromic Polydactyly and syndactyly, using a logical anatomical approach, into five distinct types for each group. Since then, there have been ...

This study is reported by Jia-Tang Li’s group from the Chengdu Institute of Biology, Chinese Academy of Sciences. The development of limbs is significant for the origin and evolution of tetrapods, ...

Three-dimensional image of a developing limb bud generated using LimbLab. It shows where key genes are active during early limb formation. Sox9 (magenta) marks the cells that will become cartilage and ...