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General introduction - Crossbreeding tables
S
Seal point (aa BB cscs DD)
Sb
Seal, carrier dilution (blue) (aa BB cscs Dd)
Sc
Seal, carrier choc (aa Bb cscs DD)
Sbc
Seal, carrier choc and blue (aa Bb cscs Dd)
B
Blue point (aa BB cscs dd)
Bc
Blue, carrier choc (aa Bb cscs dd)
C
Chocolate point (aa bb cscs DD)
Cb
Choc, carrier blue (aa bb cscs Dd)
L
Lilac point (aa bb cscs dd)
Ci
Cinnamon point (aa b1b1 cscs DD)
Cib
Cinnamon, carrier blue (aa b1b1 cscs Dd)
F
Fawn point (aa b1b1 cscs dd)
ST
Seal Tabby (AA BB cscs DD)
St
Seal Tabby, carrier non-a (Aa BB cscs DD)
STb
Seal Tabby, carrier blue (AA BB cscs Dd)
Stb
Seal Tabby, carrier non-a and blue (Aa BB cscs Dd)
STc
Seal Tabby, carrier choc (AA Bb cscs DD)
Stc
Seal Tabby, carrier non-a and choc (Aa Bb cscs DD)
etcetera, etcetera
Considering Tabby points it's more complicated, this is because the agouti gene isn't the only gene that plays a part in this, the gene for Tabby pattern (gene T) plays a part as well. This Tabby gene can, in combination with Agouti (A), take care of four different Tabby patterns: Abyssinian pattern (Ta), Mackerel (Tm), Spotted (Ts), and Blotched (Tb). In case of a Tabby Point Siamese the only visible stripes are those on the points, which pattern it is can't be seen. It is not that clear either how a combination of two Tabby alleles works out and what the resulting Tabby pattern is. I won't go into that any further, all that matters is that allele A (Agouti) is dominant over allele a (non-agouti), this means that the cat is a Tabby point if it has only one allele A. In the next tables I will use an abbreviation again for clarity, T means a cat has two Agouti alleles (AA) and t means that the cat has one Agouti allele and one non-agouti allele (Aa).
Table 5. Crossbreeding between a Seal Point and a Seal Tabby Point.
Colour parents
1
ST
2
St
3
STb
4
Stb
5
STc
6
Stc
7
STbc
8
Stbc
I
S
St
S
St
St
Stb
St Stb
S Sb
St
Stc
St Stc
S Sc
St Stb
Stc Stbc
St Stb Stc Stbc
S Sb Sc Sbc
II
Sb
St
Stb
St Stb
S Sb
St Stb
Stb Bt
St Stb
Stb Bt
S Sb
Sb B
St Stb
Stc Stbc
St Stb
Stc Stbc
S Sb
Sc Sbc
St Stb
Stb Stc
Stbc Stbc
Bt Btc
St Stb Stb Stc
Stbc Stbc Bt Btc
S Sb Sb Sc
Sbc Sbc B Bc
III
Sc
St
Stc
St Stc
S Sc
St Stb
Stc Stbc
St Stb
Stc Stbc
S Sb
Sc Sbc
St Stb
Stb Ct
St Stc
Stc Ct
S Sc
Sc C
St Stb
Stc Stc
Stbc Stbc
Ct Ctb
St Stb Stc Stc
Stbc Stbc Ct Ctb
S Sb Sc Sc
Sbc Sbc C Cb
IV
Sbc
St
Stb
Stc
Stbc
St Stb
Stc Stbc
S Sb
Sc Sbc
St Stb
Stb Stc
Stbc Stbc
Bt Btc
St Stb Stb Stc
Stbc Stbc Bt Btc
S Sb Sb Sc
Sbc Sbc B Bt
St Stb
Stc Stc
Stbc Stbc
Ct Ctb
St Stb Stc Stc
Stbc Stbc Ct Ctb
S Sb Sc Sc
Sbc Sbc C Cb
St Stb Stb Stc
Stc Stbc Stbc Stbc
Stbc Bt Btc Btc
Ct Ctb Ctb Lt
St Stb Stb Stc Stc Stbc Stbc Stbc
Stbc Bt Btc Btc Ct Ctb Ctb Lt
S Sb Sb Sc Sc Sbc Sbc Sbc
Sbc B Bc Bc C Cb Cb L
Table 6. Crossbreeding between a Seal Tabby Point and a Blue, Chocolate and Lilac Point.
Colour parents
1
ST
2
St
3
STb
4
Stb
5
STc
6
Stc
7
STbc
8
Stbc
I
B
Stb
Stb
Sb
Stb
Bt
Stb Bt
Sb B
Stb
Stbc
Stb Stbc
Sb Sbc
Stb Stbc
Bt Btc
Stb Stbc Bt Btc
Sb Sbc B Bt
II
Bc
Stb
Stbc
Stb Stbc
Sb Sbc
Stb Stbc
Bt Btc
Stb Stbc
Bt Btc
Sb Sbc
B Bc
Stb Stbc
Stbc Ctb
Stb Stbc
Stbc Ctb
Sb Sbc
Sbc Cb
Stb Stbc
Stbc Bt
Btc Btc
Ctb Lt
Stb Stbc Stbc Bt
Btc Btc Ctb Lt
Sb Sbc Sbc B
Bc Bc Cb L
III
C
Stc
Stc
Sc
Stc
Stbc
Stc Stbc
Sc Sbc
Stc
Ct
Stc Ct
Sc C
Stc Stbc
Ct Ctb
Stc Stbc Ct Ctb
Sc Sbc C Cb
IV
Cb
Stc
Stbc
Stc Stbc
Sc Sbc
Stc Stbc
Stbc Btc
Stc Stbc Stbc Btc
Sc Sbc Sbc Bc
Stc Stbc
Ct Ctb
Stc Stbc Ct Ctb
Sc Sbc C Cb
Stc Stbc
Stbc Btc
Ct Ctb
Ctb Lt
Stc Stbc Stbc Btc
Ct Ctb Ctb Lt
Sc Sbc Sbc Bc
C Cb Cb L
V
L
Stbc
Stbc
Sbc
Stbc
Btc
Stbc Btc
Sbc Bc
Stbc
Ctb
Stbc Ctb
Sbc Cb
Stbc Btc
Ctb Lt
Stbc Btc Ctb Lt
Sbc Bc Cb L
Table 7. Crossbreeding between a Blue Tabby Point, a Chocolate Tabby Point or a Lilac Tabby Point and a Blue, Chocolate or Lilac Point.
Colour parents
1
BT
2
Bt
3
BTc
4
Btc
5
CT
6
Ct
7
CTb
8
Ctb
9
LT
10
Lt
I
B
Bt
Bt
B
Bt
Btc
Bt Btc
B Bc
Stbc
Stbc
Sbc
Stbc
Btc
Stbc Btc
Sbc Bc
Btc
Btc
Bc
II
Bc
Bt
Btc
Bt Btc
B Bc
Bt Btc
Btc Lt
Bt Btc Btc Lt
B Bc Bc L
Stbc
Ctb
Stbc Ctb
Sbc Cb
Stbc Btc
Ctb Lt
Stbc Btc Ctb Lt
Sbc Bc Cb L
Btc
Lt
Btc Lt
Bc L
III
C
Stbc
Stbc
Sbc
Stbc
Ctb
Stbc Ctb
Sbc Cb
Ct
Ct
C
Ct
Ctb
Ct Ctb
C Cb
Ctb
Ctb
Cb
IV
Cb
Stbc
Btc
Stbc Btc
Sbc Bc
Stbc Btc
Ctb Lt
Stbc Btc Ctb Lt
Sbc Bc Cb L
Ct
Ctb
Ct Ctb
C Cb
Ct Ctb
Ctb Lt
Ct Ctb Ctb Lt
C Cb Cb L
Ctb
Lt
Ctb Lt
Cb L
V
L
Btc
Btc
Bc
Btc
Lt
Btc Lt
Bc L
Ctb
Ctb
Cb
Ctb
Lt
Ctb Lt
Cb L
Lt
Lt
L
General introduction - Crossbreeding tables This page is not complete, but I'm available for questions and comment, did I forget anything or are there any errors? Mail me: elinegeertsema@solcon.nl
Sources:
Houden van Siamezen by Kik van Eijsden from 1977 (Uitgeversmaatschappij Holland in Haarlem, The Netherlands)
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elinegeertsema@zonnet.nl
Date Last Modified: 06-06-2007
Copyright Eline Geertsema