Upendra S Yadav, Tathagata Biswas, Pratik N Singh, Pankaj Gupta, Soura Chakraborty, Irene Delgado, Hamim Zafar, Terence D Capellini, Miguel Torres, Amitabha Bandyopadhyay
The vertebrate appendage comprises three primary segments, the stylopod, zeugopod, and autopod, each separated by joints. The molecular mechanisms governing the specification of joint sites, which define segment lengths and thereby limb architecture, remain largely unknown. Existing literature suggests that reciprocal gradients of Retinoic Acid (RA) and Fibroblast Growth Factor (FGF) signaling define the expression domains of putative segment markers, Meis1, Hoxa11, and Hoxa13. Barx1 is expressed in the presumptive joint sites...
June 5, 2023: Development