von reh » 12. Apr 2011 07:22
Weil ein Japaner keine rhönfarbigen Stellen an der Seite hat, ein chinfarbiges Tier aber gelb am Rücken haben kann.
Robinson hat geschrieben:Black pigment would appear to be relatively unaffected by the cchd allele but the amount of yellow is drastically reduced. The juvenile pelage usually exhibits a dorsal area of yellow (rusty back or brown back) which, however, slowly disappears in subsequent moults. The yellow pigment appears as a dorsal strip from the neck to the tail with a triangular patch on each flank, and a little on the forehead. The alleles cchm and cchl do not usually permit the production of even this small amount of yellow, while the black is reduced to sepia.
(...)
The juvenile Chinchilla usually has traces of yellow pigment along the dorsal region and on the fore-head, "brown-back, or "rusty-black" as it is termed. With each successive moult to the adult coat, the amount of brown back exhibited slowly diminishes.
(c
chd, c
chm, c
chl = a
chi, a
d, a
m)
Punnet hat geschrieben:I may add that this tinge of yellow in the Junge(s) coat is sometimes to be found in white Japanese, and in the case of one F2 ♂ (viz. S 213, ex ♀ S 181 x ♂ S 175) it was so marked that the animal was reared and mated back to the original chinchilla ? (S 158). Since he gave nothing but chinchilla young, 8 in all, there can be no doubt that he was a white Japanese. In this case the yellow tinge persisted after the Junge(s) coat was moulted, though it had nearly disappeared at the age of one year.
Punnett, R., 1926. Note on a chinchilla-Japanese cross in rabbits. Journal of Genetics, 17(2), S.217-220. Available at:
http://dx.doi.org/10.1007/BF02983487
Robinson, R., 1958. Genetic studies of the rabbit. Bibliographia genetica, 17,3, S.228–558. Available at:
http://lit.rabbitcolors.info/robinson.htmlWeil ein Japaner keine rhönfarbigen Stellen an der Seite hat, ein chinfarbiges Tier aber gelb am Rücken haben kann.
[quote="Robinson"]Black pigment would appear to be relatively unaffected by the c[sup]chd[/sup] allele but the amount of yellow is drastically reduced. The juvenile pelage usually exhibits a dorsal area of yellow (rusty back or brown back) which, however, slowly disappears in subsequent moults. The yellow pigment appears as a dorsal strip from the neck to the tail with a triangular patch on each flank, and a little on the forehead. The alleles c[sup]chm[/sup] and c[sup]chl[/sup] do not usually permit the production of even this small amount of yellow, while the black is reduced to sepia.
(...)
The juvenile Chinchilla usually has traces of yellow pigment along the dorsal region and on the fore-head, "brown-back, or "rusty-black" as it is termed. With each successive moult to the adult coat, the amount of brown back exhibited slowly diminishes.[/quote] (c[sup]chd[/sup], c[sup]chm[/sup], c[sup]chl[/sup] = a[sup]chi[/sup], a[sup]d[/sup], a[sup]m[/sup])
[kafa]403[/kafa] [kafa]404[/kafa]
[quote="Punnet"]I may add that this tinge of yellow in the Junge(s) coat is sometimes to be found in white Japanese, and in the case of one F2 ♂ (viz. S 213, ex ♀ S 181 x ♂ S 175) it was so marked that the animal was reared and mated back to the original chinchilla ? (S 158). Since he gave nothing but chinchilla young, 8 in all, there can be no doubt that he was a white Japanese. In this case the yellow tinge persisted after the Junge(s) coat was moulted, though it had nearly disappeared at the age of one year.[/quote]
Punnett, R., 1926. Note on a chinchilla-Japanese cross in rabbits. Journal of Genetics, 17(2), S.217-220. Available at: http://dx.doi.org/10.1007/BF02983487
Robinson, R., 1958. Genetic studies of the rabbit. Bibliographia genetica, 17,3, S.228–558. Available at: http://lit.rabbitcolors.info/robinson.html