Transcription factors SP5 and SP8 drive primary cilia formation in mammalian embryos. - Liang, Yinwen; Koche, Richard; Chalamalasetty, Ravindra B.; Stephen, Daniel N.; Kennedy, Mark W.; Lao, Zhimin; Pang, Yunong; Kuo, Ying-Yi; Lee, Moonsup; Lobo, Francisco Pereira; Huang, Xiaofeng; Hadjantonakis, Anna-Katerina; et al. (Science, 2025)