Modification of wild-type carotenoid orange and pteridine red coloration
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Abstract. Modification of wild-type carotenoid orange and pteridine red coloration and spotting of male ornaments 15 in modern Domestic Guppy Strains (Poecilia reticulata reticulata) by the naturally occurring Purple Body gene (Pb) 16 has been long incorporated into their strains by Pedigree Stock Breeders. It is inherited as an autosomal 17 incompletely dominant trait. Its existence has allowed breeders to produce a vast array of Purple based phenotypes. 18 Photographic evidence demonstrates that Purple Body is a normal polymorphism in domestic guppies modifying 19 color pigmented regions. When combined with currently used mutant genes such as Albino, Blond, Golden, Asian 20 Blau, Coral Red, Magenta, Grass, Moscow, Pink, Platinum, Red Mosaic, Multicolor, and Full Red, startling new 21 phenotypes are created. The recently described Purple Body gene (Bias and Squire 2017a, 2017b, and 2017c) has 22 long been overlooked in research articles and little understood in breeder publications. 23 Key Words: Guppy color and modification, Domestic Guppy Strains, chromatophore, violet iridophore, blue 24 iridophore, violet-blue iridophore, xanthophore, xantho-erythrophore, Purple Guppy, Purple Body gene, 25 Metal Gold Iridophore, Purple Body gene, Vienna Emerald Green (VEG), Albino, Blond, Golden, Asian Blau, 26 Coral Red, Magenta, Grass, Moscow, Pink, Platinum, Red Mosaic, Multicolor, Full Red, Poecilia reticulata.