As I
understand it, the Black
Maine Coon has black hair because of
the dominant nature of the browning gene. This
gene governs
the production of an enzyme
("tyrosinase related protein-1). This
enzyme is concerned with how the black pigmentation
(eumelanin) is produced. When the gene is
dominant the color
brown turns to black. Sometimes in a cat the black fur can turn back to
a reddish brown.
This has happened with my cat on the side of her
rather plump belly. One reason for this change may be due to a
deficiency in an
aromatic amino acid called "Tyrosine". This
chemical is synthesised (synthesized means "combining separate elements
or substances to
form a coherent
whole") from another amino acid called phenylalanine. Tyrosine is
involved in the
production of melanin and melanin is the major pigment in cats skin and
fur. You can see some browning on the sides of this cat. Although this
is not, I am sure, due to any change. This just indicates that the
browning gene is involved.
Black Maine Coon cats are rare and difficult to photograph. Helmi says
that she has to prefocus on her husband's hand (he is the cat "wrangler"
maneouvering and teasing the cat into the correct pose) to get the image sharp.
Lighting is difficult too.

|
Photograph
of Black Maine Coon
"Queen Latifa"
- copyright Helmi Flick
|

Sources:
- Answers.com
- Wikipedia
- Cat-World.com.au
- Helmi Flick