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[RC] Palominos - Diane TrefethenA long time ago I read that Palominos don't breed true. The problem is that there are two genes involved in Palomino coloring, or more correctly, two Alleles at the Cream locus. A Palomino has Allele C and Allele C[Cr] where C = normal color andC[Cr] = Cream color. Each parent can only contribute one Allele. Half the time a Palomino will contribute C and half the time C[Cr]. When you breed two Palominos, C-C[Cr], the statistical probabilities are C-C (25%)=normal color, C[Cr]-C[Cr] (25%)=Cream color, and C-C[Cr] (50%)=Palomino color. For more than you want to know about color genetics see: http://www.vgl.ucdavis.edu/~lvmillon/coatcolor/coatclr3.html#fig2a While a C-C[Cr] could be considered the only "true" Palomino, the only two Palomino registries I could find in the United States will both register on just color as is evidenced by BOTH accepting purebred Arabians. As Dawn has noted, an Arabian cannot have the C[Cr] Allele, aka "dilute gene", therefore, the horses both registries are accepting must be chestnuts with a) body color that falls within the acceptable limits for registration as a Palomino and b) flaxen manes and tails with no more than 15% colored hairs interspersed among the white/silver hairs. The two registries are: Palomino Horse Association Route 1. Box 125 Nelson, MO 65347. and Palomino Horse Breeders of America, Inc. 15253 E. Skelly Drive Tulsa, OK 74116-2637 As noted above, breeding a Palomino to another Palomino should result in only 50% of the foals being Palomino. On the other hand, both chestnut coloring and flaxen mane/tails result from recessive genes so if you breed two flaxen maned chestnuts, the result, barring mutation, will always be a flaxen maned chestnut.* *http://www.mustangs4us.com/Horse%20Colors/recessive_color_genes.htm http://www.mustangs4us.com/Horse%20Colors/palomino_or_flaxen_chestnut.htm =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= Ridecamp is a service of Endurance Net, http://www.endurance.net. Information, Policy, Disclaimer: http://www.endurance.net/Ridecamp Subscribe/Unsubscribe http://www.endurance.net/ridecamp/logon.asp Ride Long and Ride Safe!! =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
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