GeoChemBio.com/biology/organisms/cattle - phenotypes

 

Cow phenotype
Cow phenotype

Please help keeping these websites open for everybody as long as possible

 

Bos taurus, cattle, cow: phenotype

Print

Back to top
Nemose

Genetic effects on coat colour in cattle

Gutiérrez-Gil B, Wiener P, Williams JL. Genetic effects on coat colour in cattle: dilution of eumelanin and phaeomelanin pigments in an F2-Backcross Charolais x Holstein population. BMC Genet. 2007 Aug 16;8:56.

Cattle coat color

Coat colour categories used for visual scoring of the second-generation individuals of the F2-Backcross population studied.
Coat colour categories used for visual scoring of the second-generation individuals of the F2-Backcross population studied.

Cattle dilution phenotypes

Examples of dilution phenotypes observed in the F2-Backcross individuals.
A. Calves with partially diluted red and black coat colour background (scored as Grey and Light-Red) together with a non-diluted individual (scored as Black). The SILV c.64A>G mutation showed significant association with the dilution phenotypes (p-value < 0.001).
B. Two calves showing completely diluted phenotypes (scored as White). For the animal on the left, the genotype of the SILV c.64A>G mutation was not consistent with the presumed genotype at the Dc locus. For discrepancies like this, however, no convincing recombination between SILV c.64A>G and the Dc locus was observed.

Back to top
Nemose

Coat Colour, Milk-Fat Percentage, and Type in Holstein Cattle

Hayes BJ, Pryce J, Chamberlain AJ, Bowman PJ, Goddard ME. Genetic architecture of complex traits and accuracy of genomic prediction: coat colour, milk-fat percentage, and type in Holstein cattle as contrasting model traits. PLoS Genet. 2010 Sep 23;6(9):e1001139.

Proportion of black phenotype in Holstein

Proportion of black phenotype.
Bull with 95% black (A) and bull with 5% black (B).

Back to top
Nemose

A MITF mutation associated with a dominant white phenotype and bilateral deafness in German Fleckvieh cattle.

Philipp U, Lupp B, Mömke S, Stein V, Tipold A, Eule JC, Rehage J, Distl O. PLoS One. 2011;6(12):e28857.

German White Fleckvieh cow exhibiting a colour mutation similar to incomplete albinism

German White Fleckvieh cow exhibiting a colour mutation similar to incomplete albinism with irises being pale blue in the central part and white towards the periphery as well as pigmentless muzzle, eyelashes and eyelids.

Back to top
Nemose

An Unusual Splice Defect in the Mitofusin 2 Gene (MFN2) Is Associated with Degenerative Axonopathy in Tyrolean Grey Cattle.

Drögemüller C, Reichart U, Seuberlich T, Oevermann A, Baumgartner M, Kühni Boghenbor K, Stoffel MH, Syring C, Meylan M, Müller S, Müller M, Gredler B, Sölkner J, Leeb T. PLoS One. 2011; 6(4): e18931.

Phenotype of degenerative axonopathy in Tyrolean Grey cattle

Phenotype of degenerative axonopathy in Tyrolean Grey cattle.
Moderate to severe spinal ataxia in an affected calf. Gait abnormalities and proprioceptive deficits were present in all limbs, but were markedly more pronounced in the hind than in the front limbs.

Back to top
Nemose

Balancing Selection of a Frame-Shift Mutation in the MRC2 Gene Accounts for the Outbreak of the Crooked Tail Syndrome in Belgian Blue Cattle.

Fasquelle C, Sartelet A, Li W, Dive M, Tamma N, Michaux C, Druet T, Huijbers IJ, Isacke CM, Coppieters W, Georges M, Charlier C. PLoS Genet. Sep 2009; 5(9): e1000666.

Clinical spectrum exhibited by CTS cases.

Clinical spectrum exhibited by CTS cases.
Crooked tail, growth retardation, stocky head, extreme muscular hypertrophy, spastic paresis of the hind limbs, straight hock, scoliosis.

Back to top
Nemose

A Non-Coding Genomic Duplication at the HMX1 Locus Is Associated with Crop Ears in Highland Cattle.

Koch CT, Bruggmann R, Tetens J, Drögemüller C. PLoS One. 2013; 8(10): e77841.

Crop ears in Highland cattle

Crop ears in Highland cattle.
(A) Normal ear, (B,C,D) mildly affected ears, note the slight notches (category 1), (E) severely affected cow; note the shortened ears and (F) the deep notches (category 2).

Back to top
Nemose

 
 

Prints, posters, mugs and other drinkware as well as various bags and even throw pillows with portraits of beautiful cows are available at GeoChemBio shop

Mix and match to create your drinkware sets, to decorate your room or to make an original gift!

Cow first Cow second Cow third
Cow fourth Cow fifth Cow sixth

Back to top
Nemose