Search Phenotypes

Coat colour, albinism, oculocutaneous type IV — In Dexter cattle: dark dun / chocolate (CD) or light dun / cream (CL)

Rothammer et al. (2017): "comparisons of the sequence of [the candidate] haplotype [see Genetic mapping section] with sequence data from four Braunvieh sires and the Aurochs genome identified two possible candidate causal mutations at positions 39,829,806 bp (G/A; R45Q) [omia.variant:847] and 39,864,148 bp (C/T; T444I) [omia.variant:848] that were absent in 1682 animals from various bovine breeds included in the 1000 bull genomes project. Both...

OMIA ID: 1821Inheritance: 5Characterised: YesYear: 2017

Coat colour, dilution, FZD7-related — milca coat colour

Floriot et al. (2021) "A total of 106 affected animals were reported to the French National Observatory for Bovine Abnormalities (ONAB, https://www.onab.fr/, Grohs et al. 2016). The first case reported to the ONAB was a cow born in 2008. At birth, the affected animals, which are otherwise healthy, present a dilution of the pigmented, normally red, areas of the coat .... To search for the causative genetic factors responsible for this genetic co...

OMIA ID: 2318Inheritance: 5Characterised: YesYear: 2021

Coat colour, dominant white with bilateral deafness — Glass-eyed albino; German White Fleckvieh syndrome

Philipp et al. (2011) reported a "dominantly inherited syndrome associated with hypopigmentation, heterochromia irides, colobomatous eyes and bilateral hearing loss . . . in Fleckvieh cattle"

OMIA ID: 1680Inheritance: 3Characterised: YesYear: 2011

Lethality, COL6A3-related

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.

OMIA ID: 2260Inheritance: 5Characterised: YesYear: 2017