Question

gene affect plumage colour and shank colour of chicken?

REASONS?????​

Answer 1

Answer:

Explanation:

Each trait is controled by different sets of genes.There are also different patterns of hunting behavior in different breeds of dogs (different hounds, pointers, shepherds etc.). To answer your question it is necessary to know in what trait exactly you are interested in. In other case the answer will be - almost all genes somehow could influence hunting behavior.

Answer 2

This study evaluated the effects of the autosomal dominant Fm gene in conjunction with the sex-linked Id gene on skin color

and related gene expression. Ten Dongxiang black cocks were selected

to build ten families by mating 60 individuals of ISA B-line layers. The

skin color of the F1

generation was observed at different time points. At

126 days, 36 chickens were slaughtered, and gene expression of TYRP1,

TYRP2, MC1R, and EDNRB in breast skin was assessed by quantitative

RT-PCR. The ratio of Dongxiang black chickens with white skin chicks

in the F1

generation to that of non-white was 3:7 (HoFF: HeFf). At

126 days, all F1

generation cocks showed white skin (115/115), while

the percentages of hens with black skin were 100% (HoFF, 27/27) and

53.75% (HeFf, 43/80). The change in skin color peaked between 42 and

84 days. The offspring of HoFF displayed significantly higher expression of MC1R, compared with those of HeFf (P < 0.05). The “L” value

of hen’s skin was significantly lower, and TYRP1 and TYRP2 expression was significantly higher (P < 0.05) than in cocks with the same Fm/

fm genotype. These findings indicate the presence of homozygous and

heterozygous Fm in Dongxiang black chickens, with the offspring of  homozygous birds showing a higher percentage of black skin percentage.

The expression of the four genes studied was correlated with skin color,

with TYRP1 and TYRP2 representing the most suitable molecular markers.