Rat morph ID

[Jonas@Balls2TheWall]

Hey everyone, we have these very cool looking rats over here. Its definitely genetic, the physical characteristics of the gene are basically crazy black and white patterns. Ill have to get more pics but we have some really nice ones with stripes across their face and funky patterns. Any way, just wondering if there is a name for this morph?

http://s918.photobucket.com/albums/a...ps0357e69c.jpg

[MrLang]

Rat patterns are mostly polygenic. What do the parents look like. I breed a more 'full colored' rat to a rat with very little color when I want the result to be a huge variety of patterns. The big white spike down the middle of the forehead is a blaze and it's characteristic of the 'high white' gene. The colored head with the stripe down the back is hooded. The rat on the right, for instance, is a blazed hooded. The one on the left is a high white blazed berkshire. You can piece it together pretty well using this: http://www.afrma.org/ratmkd.htm

[Capray]

The ones with the central face stripe are called "blazed" rats. Along with the rest of their markings, they look like hooded.

[Jonas@Balls2TheWall]

Interesting, we have plenty of hooded rats but these always stand out, ill get better pics next cleaning day. Some have black faces with like a pinstripe of white runing diagonally. They are all produced by the same male too. Maybe these hooded patterns are just crazier than the regular hooded rats I'm used to seeing? Also what's it called when the dorsal area is black and the ventral area is white?

Ps. Thanks for the link, ill check it out when I get home.

[wolfy-hound]

Black bodied with white bellies is I believe called a Berkshire.

The blazes can be the entire face to just a tiny snippet of white. I've got quite a few and they are a striking color to see.

[sorraia]

They aren't hooded. They are actually what's called "banded". The one on the right with a lot of white looks like it might be a cap-stripe, but hard to tell from that angle.

Those markings aren't exactly standardized, and typically come from dominant white spotting (also incorrectly called "high white"). They may be mixed with the H-locus markings (from which Berkshire and hooded arise).

Blazes can be associated with the dominant spotting, but are also associated with the H-locus markings. There are different genes responsible for the blazing. With the cap-stripe and banded markings, blazes are pretty common. In H-locus markings, you are more likely to see the blazes on variegated, sometimes berkshire (though berkshire with blaze can also be from the dominant spotting).

[Jonas@Balls2TheWall]

Great info, thanks!

[kremmel]

Sorry guys, you're all wrong. This pattern is called 'roan.' Those are black roans.

[Sita]

Sorry guys, you're all wrong. This pattern is called 'roan.' Those are black roans.

No, they aren't. Roan is a color, not a pattern.

[Skilla6000]

No, they aren't. Roan is a color, not a pattern.

^