Tail Length

Short Tail (Variant 3)

Alternative Names: Kinky Tail

Short Tail (Variant 3) Photo

Short Tail (Variant 3) results in a shortened tail with kinks or angles and was first discovered in Japanese Bobtail cats.

More Info

Did you know?

This Short Tail variant causes a reduced number of tail vertebrae and may even lead to the fusion of tail vertebrae. These changes occur at random and make each tail unique. Although direction of the tail is not important, to be considered a true Japanese Bobtail by breed standard, the tail must not surpass three inches from the tailbone to tip. Unlike the Short Tail variants discovered in the Manx, this Short Tail variant is not currently associated with problematic skeletal disorders.

How it works

While two copies of this Short Tail variant are needed to produce a predictably shortened tail, typically with kinks, one copy of this variant may also produce a variably shortened tail. Often cats with two copies also lack one vertebra from the thoracic or lumbar region of the spine.

Health implications

Unlike the short tail variant discovered in the Manx, the Japanese Bobtail variant is not currently associated with skeletal disorders.

Prevalence

1 in 380 cats

has one or more copy of this genetic variant in our testing.

Technical Details

Gene HES7
Variant A>G
Chromosome E1
Coordinate 2,918,735

All coordinates reference FelCat9.0

References & Credit

Credit to our scientific colleagues:

Lyons, L. A., Creighton, E. K., Alhaddad, H., Beale, H. C., Grahn, R. A., Rah, H. C., Maggs, D. J., Helps, C. R., & Gandolfi, B. (2016). Whole genome sequencing in cats, identifies new models for blindness in AIPL1 and somite segmentation in HES7. BMC Genomics, 17(1). View the article

Xu, X., Sun, X., Hu, X. S., Zhuang, Y., Liu, Y. C., Meng, H., Miao, L., Yu, H., & Luo, S. J. (2016). Whole Genome Sequencing Identifies a Missense Mutation in HES7 Associated with Short Tails in Asian Domestic Cats. Scientific Reports, 6. View the article