At some point I felt I had to explain
something about the genetic background for the different colours and patterns
found in cats. The idea came to me to put together some pages to help other cat
people with a little genetics.
There is a section that deals with the genetics on colours and patterns and
you will find explanations about most of these genes. You will also find help in
determining the genetic code for a cat and how to make a theoretical "mating"
between two cats with a known genetic code.
The other parts of these pages deal with the Fife standards for colours and
patterns and in between there are some pages that link the two sections together.
about the genes:
Here you will find a short but simple
explanation for each of the genes that work on colours and patterns. I have
tried to make it as simple as possible, and it is absolutly incomplete. If you would
like to know more,there are people who have done a great deal of work you can
use. Just follow the links I have put together.
But be careful - out there in the cyberspace there are no qualitycontrol and
there are some weird theories around.
To find the genetic
code for a cat:
Breeding cats in different colours it is
important for you to know the genetic code (the genotype) for your cat/s.
All you have to do is answer the
questions by clicking on the relevant answer; eventually the genetic code will
appear. You should print the last page if you are going to use it afterwards.
(Print in landscape, as it is on the website.)
make a theoretical mating:
If you know the genetic code for two cat you want to mate, this is a way to se
the possible offspring of this mating.
It would come in handy if you make the genetic code first, as you require it in
order to do a theoretical mating. When you have answered all the questions,
there is an explanation
as to how you "read" the results. (Unfortunately, I am not able to
make it work so that all the possible kitten colours automatically show
themselves – you will have to do some work on paper.)
a theoretical mating:
Just a little help to "read" the "mating" and see which
colours and patterns are possible from this particular mating.
I have a different way to that of most genetic books on how to find out the
possible colours and patterns; of course I find my way simpler than the big
squares with all the letters and names.
the colours and patterns and a little about their genetic:
Here I have tried to explain the colours and patterns as well as the
genetics behind them.
Category IV - Table of Contents
FIFe standards of basic colours.
standards for tabby patterns
standard for SIA/BAL/ORI/JAV
Syntax diagram of colourvarieties Balinese/Siamese
Syntax diagram of colourvarieties Javanese/Oriental
Scale of Points: Oriental Cats
Please let me know if there are any
mistakes or if you have any comments, good or bad.