OMIA:000991-9913 : Androgen insensitivity syndrome (AIS) in Bos taurus (taurine cattle) |
In other species: Burton's mouthbrooder , dog , domestic cat , horse , pig
Categories: Reproductive system phene
Links to possible relevant human trait(s) and/or gene(s) in OMIM: 300068 (trait) , 313700 (gene)
Links to relevant human diseases in MONDO:
Single-gene trait/disorder: yes
Mode of inheritance: X-linked
Disease-related: yes
Key variant known: no
Cross-species summary: This is a type of XY difference of sexual development (XY DSD) due to variants in the AR gene. Previously known as Testicular Feminisation Syndrome. This is an abnormality of sexual development in which affected individuals have an XY chromosomal constitution, undescended testes and female secondary sexual characteristics (including female external genitalia). Also, instead of normally developed Mullerian duct derivatives (Fallopian tubes, uterus, cervix, and upper protion of the vagina), they have under-developed Wolffian duct derivatives (epididymis, vas deferens, and seminal vesicle). In all species so far investigated, the inheritance is X-linked recessive. In several species, this disorder is known to be due to a deficiency of an androgen receptor encoded by a gene on the X chromosome. The presence of a Y chromosome induces the undifferentiated embryonic gonads to develop as testes, but, in the absence of androgen receptor, the androgens produced by the testes cannot exert any effect. The result is that the embryo follows the "default" path of development, which is female.
Cite this entry
Nicholas, F. W., Tammen, I., & Sydney Informatics Hub. (2005). OMIA:000991-9913: Online Mendelian Inheritance in Animals (OMIA) [dataset]. https://omia.org/. https://doi.org/10.25910/2AMR-PV70
Reference
1993 | Peter, A.T., Scheidt, A.B., Campbell, J.W., Hahn, K.A. : |
Male pseudohermaphroditism of the testicular feminization type in a heifer. Canadian Veterinary Journal - Revue Veterinaire Canadienne 34:304-305, 1993. |
Edit History
- Created by Frank Nicholas on 06 Sep 2005