--- license: permission_granted topic_id: companion_breed_health_shetland_pony_horse_omia4201_horse category: companion-breed-health title: "Shetland Pony (Horse) — Coat colour, phaeomelanin dilution, MFSD12-related (hereditary; OMIA-verified breed predisposition)" lang: en source: "OMIA (Online Mendelian Inheritance in Animals, University of Sydney) breed-specific hereditary-disorder record, saved verbatim to source_file; C1 substring-verified. Pulled 2026-08-23 from local OMIA database dump." source_file: pdf-raw/breed-health/shetland_pony_horse_omia4201_4201.txt date_parsed: 2026-08-23 tokens_estimated: 84 verification: method: substring_match claims: 5 passed: 5 date: 2026-08-23 recovered: false path: companion-breed-health/companion_breed_health_shetland_pony_horse_omia4201_horse/01_companion_breed_health_shetland_pony_horse_omia4201_horse.md source_document: "OMIA — Online Mendelian Inheritance in Animals (University of Sydney)" citation: authority: "OMIA — Online Mendelian Inheritance in Animals (University of Sydney)" title: "Shetland Pony (Horse) — Coat colour, phaeomelanin dilution, MFSD12-related (hereditary; OMIA-verified breed predisposition)" url: "https://omia.org/OMIA002197/9796/" retrieved: "2026-08-23" ref: "OMIA breed-specific hereditary-disorder records (omia.org), derived from local OMIA database dump; dataset: https://doi.org/10.25910/2AMR-PV70" doc_type: "academic animal-genetics database (breed-specific disorder entries)" needs_review: false
verification_derived: method: derived_from_dataset source: "OMIA database dump (omia.xml, local); fields Gene/Variant/Article/OMIM" note: "Structured fields (gene, variant rsID/protein change, PubMed/DOI references, OMIM cross-link) extracted from OMIA dump and presented with first-hand values; not verbatim prose."---
Shetland Pony (Horse) — Coat colour, phaeomelanin dilution, MFSD12-related (hereditary; OMIA-verified breed predisposition)
Source: first-hand OMIA (University of Sydney) breed-specific hereditary-disorder record, saved verbatim to source_file; every claim below is a C1 byte-substring of it.
Claims
Breed: Shetland Pony (Horse)Disorder:Mode of inheritance: Autosomal recessiveSummary: Tanaka et al. (2019): Mushroom is a unique coat color phenotype in Shetland Ponies characterized by the dilution of the chestnut coat color to a sepia tone.Defect: no
Associated gene(s)
Derived from OMIA database dump (omia.xml, local); structured field, not verbatim prose. First-hand values below are verbatim substrings of the topic's pdf-raw/omia/<phene_id>.txt source file.
- Gene: Entrez Gene ID 398298778 (no symbol in OMIA GeneSynonym) — OMIA Phene_Gene
- OMIA molecular-genetics note: Tanaka et al. (2019) provided evidence supporting a frameshift mutation (p.Asp201fs) in the MFSD12 gene as being a likely causal variant for the mushroom coat colour: "This variant was perfectly concordant with phenotype in 96 Shetland Ponies (P = 1.15 × 10-22), was identified in the closely related Miniature Horse for which the mushroom phenotype is suspected to occur (fmu = 0.02), and was absent…
Evidence (references)
Derived from OMIA database dump (omia.xml, local); structured field, not verbatim prose. First-hand values below are verbatim substrings of the topic's pdf-raw/omia/<phene_id>.txt source file.
- 2019. A frameshift variant in MFSD12 explains the mushroom coat Color dilution in Shetland Ponies. PAG XXVII — OMIA Phene_Article / Article
- 2019. Frameshift variant in MFSD12 explains the mushroom coat color dilution in Shetland Ponies. Genes (Basel) — PubMed:PMID31635058 | DOI:10.3390/genes10100826 — OMIA Phene_Article / Article
Comparative medicine (human OMIM)
Derived from OMIA database dump (omia.xml, local); structured field, not verbatim prose. First-hand values below are verbatim substrings of the topic's pdf-raw/omia/<phene_id>.txt source file.
- OMIM:617745 (type: gene) — OMIA Group_OMIM (via OMIA_ID)