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There are 5 main genes that determine rabbit coat genetics. The interplay of these genes within each other and with other accessory modifier genes give a wide variety of phenotypes (the physical appearance) of rabbits.
A Locus Determins the base pattern of the rabbit: A Agouti, at Tan, aa Self/Solid B Locus - Determines the base color of the rabbit: B Black, bb Chocolate C Locus - Determines the expression of color: C Full Color, c(chd) Absence of Yellow also called Chinchilla, c(chl) Shaded also causes absence of yellow, ch Himalayan or temperature sensitive Pointed, c Albino or absence of color D Locus - Determines saturation of color: D Saturated, dd Dilute E Locus - Determines the extension of color: Es Steel or overextension of base color, E Normal extension, ej harlequin or randomization of normal extension and non extension, e non extension
Additional genes in TAMUK-C that can modify the above genes. W - Wideband Du - Dutch
Other genes present in other rabbit breeds but are not or are debated to be present in TAMUK-C En - Broken V - Vienna Si - Silvering