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Although some experimental breeding took place during the 1970s and 1980s in the UK, including Pat Turner's Seychellois breeding program, the modern-day Oriental Bicolour owes its origins to matings initiated in the USA by Lindajean Grillo (Ciara Cattery). Starting in 1979, Grillo carried out a series of matings between Siamese and Bicolour American Shorthairs. She then selected the best Bicolour offspring to mate back to Siamese or Orientals in order to regain type. The variety was granted recognition by TICA in 1983 and the first champion was Ciara Quite-N-Oreo.
During the 1980s European breeders, principally those in France and the Netherlands, initiated their own Oriental Bicolour breeding lines. A red and white female Moroccan street cat was used as an initial outcross, then later on a Black & White Cornish Rex. Further cats were imported from the USA. It was important for breeders to have different lines in order to be able to mate bicolour to bicolour and obtain a higher proportion of white on the coat, without excessive inbreeding.
FIFe granted championship recognition in 2003 to the Bicolour Oriental Shorthairs and in 2005 to the colourpoint and white cats under the breed name Seychellois.
Although there was a small breeding program stemming from the last of Pat Turner's cats being kept by the late Barbara Lambert (Nomis cattery, breeding under FIFe guidelines,) this disappeared following her death in the early 2000s. The first modern-day Oriental Bicolours were imported to the UK starting in 2004 with the arrival of Black & White male Tassam Tom of Landican owned by Sarah Johnson and Pat Norman of the Landican Cattery. The variety gained official Preliminary recognition with the GCCF in 2006. In 2008 the breed progressed to Provisional Status, the fastest breed recognition within this organisation and a mark of the breed's popularity and success.
There are differences in the way that Oriental Bicolours are registered in different organisations. Some will register Bicolour Oriental Shorthairs and Bicolour Siamese/Seychellois separately, maintaining a genetic segregation between long and short coats and colourpoint and solid patterns. This effectively fragments different groups of Oriental Bicolour. The GCCF registration policy for the breed allows for all the groups to be bred together so that cats carrying the genes for long hair of colourpoint are not considered variants. Permitted outcrosses are Siamese, Balinese, Oriental Shorthair and Oriental Longhair. All offspring are registered as Oriental Bicolours and cannot be registered under the breed of their outcross parent. The only variants are cats which do not inherit white spotting; these are registered as "SH/LH of Oriental Type" without a breed number and cannot be shown, but can be used in breeding programs.
The Oriental Bicolour is a cat of Oriental type with a long, slender body and tapering whip-like tail. The triangular shape of the head is made of straight lines with a straight side profile and large, wide-set ears. The eyes are green, except in the colourpoint varieties which have blue eyes. The coat on the shorthaired variety is sleek, close-lying and glossy, while that of the longhair is fine and silky, lying flat to the body with no thick undercoat and forming a plume on the tail. The full range of colours seen in Siamese and Orientals is permitted, however a defining feature of breed is that they always have white spotting. In a cat of show quality this should extend to cover at least one third of the body and the distribution may be random and quirky like splashed paint. There is always a greater distribution of white on the cat's underside and legs in comparison with its back. This patterning is caused by the dominant white spotting gene, which is symbolized with the letter S.