Multiple Cell Types Guided by Neurocytes Orchestrate Horn Bud Initiation in Dairy Goats
July 2025
in “
Genetics Selection Evolution
”
Studysummary In this study, using scRNA-seq, researchers detailed the gene expression and cell differentiation processes in goat fetal horn buds, identifying crucial roles for dermal and epithelial cells in horn initiation and highlighting potential genetic factors involved in horn morphogenesis.
Our plain-language summary. Not medical advice or a treatment recommendation. Consult a qualified healthcare professional before changing treatment. Full disclaimer
The study explores the cellular and molecular mechanisms of horn bud initiation in dairy goats using single-cell RNA sequencing (scRNA-seq) on 8 goat fetuses at embryonic days 50, 60, and 70. It identifies key genes such as SOX10, NGFR, SNAI1, and TFAP2A, which are highly expressed in horn buds, and highlights the regulatory interactions between genes like FOXL2 and SOX9. The research reveals the roles of various cell types, including dermal, epithelial, endothelial, and nerve cells, in horn bud development, emphasizing the importance of nerve cells and their interactions with other cell types. The study also identifies significant signaling pathways, such as Wnt and TGF-β, involved in horn formation. These findings provide insights into the genetic and cellular factors driving horn bud development, which could aid in breeding hornless goat breeds for safer farming.
