Searching for homozygous haplotype deficiency in Manech Tête Rousse dairy sheep revealed a nonsense variant in the MMUT gene affecting newborn lamb viability.

"genomic coordinates for both versions of the sheep genome are available at 10 6084/m9 figshare 8424935 v2 ( https://sheephapmap org ). raw data are available (see additional file 2"

"Declarations Ethics approval and consent to participateThe experimental procedures on animals were approved (approval numbers APAFIS#30615-2021032318054889 v5) by the French Ministry of Teaching and Scientific Research and local ethical committee C2EA-115 (Science and Animal Health) in accordance with the European Union Directive 2010/63/EU on the protection of animals used for scientific purposes. Consent for publicationNot applicable. Competing interestsThe authors declare that they have no competing interests. Competing interests The authors declare that they have no competing interests."

"Funding This research has received funding from the European Union’s Horizon 2020 research and innovation program under the Grant Agreement No. 772787 (SMARTER) and PRESAGE project (CASDAR n°20ART1532777, the responsibility of the French ministry of Agriculture and Food cannot be engaged). MBB was supported by a Ph.D. grant for the HOMLET program co‑funded by APIS‑GENE and Région Occitanie."