University of Queensland researchers have pinpointed a genetic mutation responsible for unusual horn development in Brahman cattle breeds common in Northern Australia. The discovery resolves a long-standing issue that has puzzled cattle producers for years, causing economic losses due to breeding difficulties. The previously undetected gene variant affects horn shape and growth, leading to inconsistencies in polled – or hornless – cattle. Identifying the gene allows for more accurate breeding practices, enabling producers to reliably breed polled animals. This breakthrough promises to improve herd genetics and reduce the need for painful dehorning procedures. The research team utilized genomic sequencing and analysis to isolate the causative variant, offering a practical solution to a persistent agricultural challenge. This finding has significant implications for the Australian cattle industry and potentially for similar breeds globally.