Marbling is an important trait in characterization beef quality and a major factor for determining the price of beef in the korean beef market.
Is there a marbling gene.
Now let s say you breed 2 marbled betta.
There is a lot of evidence to suggest that transposable genetic elements or jumping genes could be responsible for the marbling effect in betta fish.
There is a need to identify functional modules or genes related to marbling traits and investigate their relationships through a weighted gene co expression network analysis based on the system level.
But they all carry the gene.
Like all things genetic however using a 10 star bull won t necessarily produce high marbling tender offspring.
Epds estimate the genetic potential of an animal as a parent across all gene loci involved whereas genetic tests are specific to a small number of genes or genetic.
The k232a polymorphism at the diacylglycerol o acyltransferase 1 dgat1 gene and the capn1 c 947 snp were associated with level of beef marbling.
Results of dataset 2 grouped by proportion of black wagyu are shown in figure 2.
In wagyu falls with days on feed and proportion of wagyu notwithstanding the genetic effects there is also a major environmental effect on and marbling.
It also looks like as a group the british breeds have a higher incidence for these genes.
Until now there was no comprehensive review of research into the genetics of marbling but texas a m geneticist andy herring recently completed the white paper genetic aspects of marbling in beef carcasses the literature review encompasses 52 studies spanning several decades.
There was no association between the snp at the calpastatin gene cast c 155 and meat quality traits nor was there any association of the tested snps with whc traits and ph value.
Clem as far as i know there are two markers for marbling and three recognized genes for tenderness.
The inheritance of marbling can be explained by this theory.
In particular marbling is a complex trait and needs a system level approach for identifying candidate genes related to the trait.
There are substantial differences in marbling ability across breeds of cattle and within breeds of cattle.
Heritability estimates of marbling ability have ranged from 13 to 88 in.
However the trait of marbling is difficult to improve by traditional selection because the heritability is low and measure for marbling is only possible after slaughter.
However proving that could be tricky.
By contrast with visual scores of marbling gave greater scatter did not demonstrate a sire effect and must be misleading in their present form.
In fact marbling is pretty common.
You are bound to get at the least a quarter marbled fry.
