Phenotypes

No summary available.

This likely causal variant was first reported by Novosel et al. (2019). Details are provided by Novosel et al. (2022): "In the small local Slovenian cattle breed Cika, we identified (next-generation sequencing) two cows with the T10432C mitogenome mutation in the ND4L gene, which corresponds to the human T10663C mutation known to cause Leber's hereditary optic neuropathy (LHON)"

No summary available.

No summary available.

Liefers et al. (2004) showed that a 115T>C missense mutation in exon 20 of the leptin gene (LEPR) is associated with a decreased concentration of leptin in late pregnancy.

No summary available.

Using targeted DNA capture and massively parallel resequencing of the 1.2 Mb region that contained 24 genes, Testoni et al. (2012) identified a causal mutation as a "KDM2B missense mutation (c.2503G>A) leading to an amino acid exchange (p.D835N) in an evolutionary strongly conserved domain". As the same authors report, "The KDM2B gene (also known as JHDM1B and FBXL10) encodes a histone H3 lysine 36 dimethyl (H3K36me2)-specific demethylase ....

Bourneuf et al. (2017) detected COL6A3 g.117453719G>A; p.T1894M; omia.variant:1184 as a de novo recessive potentially lethal mutation from an analysis of whole-genome-sequence of a Holstein AI bull. No information was provided on the descendants of this bull.

Bourneuf et al. (2017) detected Chr7 CSNK1G2 g.45885860G>C; p.D164H as a de novo recessive potentially lethal mutation from an analysis of whole-genome-sequence of a Montbéliarde AI bull. No information was provided on the descendants of this bull.

Nix et al. (2024) used gene editing in a mechanistic study of gene function of OCT4 (also called POU5F1). The authors "aimed to improve the efficiency of biallelic deletions and deplete specific maternal RNAs in cattle zygotes using CRISPR-Cas editing technology. ... The results confirm that OCT4 is a key regulator of genes that modulate pluripotency and is required to form a functional blastocyst in cattle."

Bourneuf et al. (2017) detected FAM189A1 g.28644665T>C; p.N192S as a de novo recessive potentially lethal mutation from an analysis of whole-genome-sequence of a Montbéliarde AI bull. No information was provided on the descendants of this bull.

Bourneuf et al. (2017) detected ITGA3 g.37219021G>A; p.T252M as a de novo recessive potentially lethal mutation from an analysis of whole-genome-sequence of a Holstein AI bull. No information was provided on the descendants of this bull.

Bourneuf et al. (2017) detected SOWAHB g.93487577G>T; p.Q379K as a de novo recessive potentially lethal mutation from an analysis of whole-genome-sequence of a Charolais AI bull. No information was provided on the descendants of this bull.

By cloning and sequencing a very likely comparative candidate gene (based on the same disorder in humans), Shuster et al. (1992; PNAS) showed that this disorder in Holstein cattle is due to a missense mutation (c.383A>G) in the CD18 gene, now known as ITGB2. This mutation was confirmed in Daetwyler et al. (2014)'s analysis of whole-genome sequence data from 234 cattle, including key ancestors of the Holstein-Friesian, Fleckvieh and Jersey b...

No summary available.