Gene
What It Is
Other

AA, Aa Agouti Tabby patterned
aa Non-Agouti Non-tabby

BB Black --
Bb Chocolate --
bb Cinnamon --

CC, Cc Solid --
cc Siamese Pointed

CeCe, Cece Curled Ears --
cece Straight Ears --

DD, Dd Not Diluted Black, chocolate or red
dd Diluted Black is blue, chocolate is lilac, cinnamon is fawn, red is cream

DiDi, Didi Double Dilution Blue, lilac and fawn are caramel, red is apricot
didi Normal Dilution --

FeFe, Fefe Folded Ears --
fefe Straight Ears --

LL, Ll Shorthair --
ll Longhair --

MM One tail Normal tail
Mm Multiple tails Multiple tails(2+)
mm No tail Manx

RR, Rr Non Rex Normal fur
rr Rex Curly fur

SS Reverse Bicolor White markings
Ss Bicolor Colored markings
ss Non-Bicolor Solid

SiSi, Sisi Silver --
sisi Normal Color --

TT Tabby Tabby markings
Tt Tabby Tabby carrying non
tt Non-Tabby No tabby markings

WW, Ww White White masks all colors
ww Non-White --

WhWh, Whwh Wirehair --
whwh Normal Fur --

WiWi Wings Big wings, such as feather, fae, or dragon
Wiwi Mini-wings Miniature sized wings
wiwi No wings --

xx Female, Non-Red Colors other than red or cream
xy Male, Non-Red Colors other than red or cream
xxo Female, Tortie --
xoxo Female, Red Red or cream
xoy Male, Red Red or cream