Welcome to OMIA
Online Mendelian Inheritance in Animals (OMIA) is a catalogue/compendium of inherited disorders, other (single-locus) traits, and associated genes and variants in 404 animal species (other than human and mouse and rats and zebrafish, which have their own resources) co-authored by Professor Frank Nicholas and Associate Professor Imke Tammen of the University of Sydney, Australia, with help from many people over the years. OMIA information is stored in a database that contains textual information and references, as well as links to relevant PubMed and Gene records at the NCBI, and to OMIM and Ensembl.
OMIA is manually curated by a team of specialists. If you see an error or wish to submit an entry, please contact us.
To join the OMIA Support Group, register at OMIA Support Group.
From 1st September 2011, the OMIA ID is binomial. To better conform to global standards, in March 2023 the binomial format was changed slightly by replacing a space with a colon, i.e. OMIA:xxxxxx-yyyy.., where xxxxxx is the 6-digit number for a trait/disorder, and yyyy.. is the NCBI species taxonomy id (usually four digits, but sometimes longer).
OMIA has been a free internet resource for over 25 years, with much of the crucial curation work done on a volunteer basis. Please consider donating to help pay for maintenance, upgrades and curation time.
We have recently launched the Pioneers of Mendelian Inheritance in Animals project (PMIA), an exploration of the history of research into Mendelian inheritance in animals. New entries will be added throughout 2022!
Summary
| dog | cattle | cat | pig | sheep | horse | chicken | rabbit | goat | Other | TOTAL | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| TOTAL TRAITS/DISORDERS | 870 | 631 | 411 | 362 | 306 | 263 | 244 | 123 | 104 | 1006 | 4420 |
| Mendelian trait/disorder | 400 | 298 | 137 | 133 | 118 | 61 | 136 | 74 | 24 | 344 | 1792 |
| Mendelian trait/disorder; likely causal variant(s) known | 339 | 205 | 104 | 65 | 55 | 48 | 56 | 14 | 17 | 192 | 1112 |
| Likely causal variants | 496 | 270 | 173 | 72 | 86 | 105 | 71 | 18 | 30 | 156 | 1496 |
| Potential models for human traits | 558 | 323 | 268 | 203 | 131 | 146 | 84 | 72 | 50 | 571 | 2452 |
