O que significa “Limpar”?
O animal não carrega a mutação. Não desenvolverá a doença e não vai passar adiante.
Cavalo Síndrome de Insensibilidade Androgênica em Quarto de Milha (AIS-QH)
The Androgen Insensitivity Syndrome (AIS) DNA test in Quarter Horses is essential for responsible breeding and horse health management. AIS is a genetic condition affecting male horses, causing infertility despite normal XY chromosomes. By using the AIS DNA test, breeders can identify carriers and avoid mating two carriers, preventing affected foals. This test ensures the integrity of Quarter Horse bloodlines and promotes healthier, more fertile offspring. Early detection through AIS testing helps maintain the breed’s performance and value. Trust reputable labs for accurate AIS DNA testing in Quarter Horses. Stay informed and protect your horses with reliable genetic screening today.
Abreviatura: AIS-QH
Mutação analisada: AR c.1A/G
Herança: Recessivo ligado ao X
Acrônimo
AIS-QH
Frequência observada
Gravidade clínica
Classificação clínica
Doenças Endócrinas
Mutação analisada
AR c.1A/G
Modo de herança
Recessivo ligado ao X (Completo)
Resumo do teste:
Androgen Insensitivity Syndrome (AIS) in Quarter Horses is a genetic condition where affected horses are genetically male (XY) but develop female physical traits due to their bodies' inability to respond to male hormones. DNA testing for AIS helps breeders identify carriers and affected horses to prevent breeding that could produce infertile offspring. This test is crucial for maintaining healthy bloodlines and avoiding unexpected reproductive issues. Early detection through DNA analysis supports better management and care of Quarter Horses. Overall, AIS testing promotes responsible breeding practices in the equine industry.
Disponível no pacote: Basic
Este teste de DNA está incluído a partir do nosso pacote Basic - e também faz parte dos packs Basic, Standard, Advanced, Complete.
Ver pacotes de teste de DNA →Escolha o pack que melhor se adapta à sua estratégia de criação ou saúde dos seus animais.
Understanding Androgen Insensitivity Syndrome (AIS) in Quarter Horses
Androgen Insensitivity Syndrome (AIS) is a genetic condition that affects the development of sexual characteristics in horses, particularly in male individuals. This condition arises due to a mutation in the androgen receptor gene, which plays a crucial role in how an organism responds to male hormones, known as androgens. In horses with AIS, the body is unable to respond to these hormones, leading to a range of physical and physiological effects.
Clinical Manifestations of AIS
Horses affected by AIS typically exhibit a phenotype that is inconsistent with their genetic sex. For instance, genetically male horses may present with female characteristics, including external genitalia that resemble that of a mare. Internally, these horses may have undescended testes or may develop female reproductive structures. As a result, affected individuals can often be misidentified during early assessments.
Impact on Reproduction
The reproductive capacity of horses with AIS is significantly compromised. Because the condition interferes with the normal development of male reproductive organs, affected horses are usually sterile. This sterility can pose challenges for breeders and owners, particularly in a breed like the Quarter Horse, where breeding success is often a key consideration for performance and economic viability.
Diagnosis of AIS
Diagnosing AIS typically involves a combination of clinical examination and genetic testing. Observations of external genitalia and overall physical development can prompt further investigation. Genetic testing can confirm the presence of the mutation in the androgen receptor gene, solidifying the diagnosis. Early identification of AIS is crucial for managing the condition effectively and making informed decisions regarding breeding and training.
Management and Care of Horses with AIS
Caring for horses diagnosed with AIS requires a tailored approach. Due to their unique physical attributes and reproductive challenges, these horses may benefit from specialized training and management strategies. Owners should also be educated about the condition to ensure they can provide appropriate care and support. Although affected horses may not contribute to breeding programs, they can still excel in various equestrian activities, given the right training and support.
Conclusão
Androgen Insensitivity Syndrome presents unique challenges within the Quarter Horse breed, affecting both the physical characteristics and reproductive capabilities of affected individuals. Understanding this condition through genetic testing and clinical observation is essential for responsible management and care. With proper knowledge and resources, owners of horses with AIS can ensure that these animals lead fulfilling lives, despite the challenges presented by their condition.
Raça reconhecida para o teste: Síndrome de Insensibilidade Androgênica em Quarto de Milha (AIS-QH)
- Quarter Horse
🧬 Interpretation of genotypes AIS-QH
Genótipo
Status
🟡 N/N
Não portador - sem risco
❌ ♂ N/AIS-QH
Afetados - Em risco
🟡 ♀ N/AIS-QH
Transportadora - Sem Risco
❌ AIS-QH/AIS-QH
Afetados - Em risco
FAQ: entendendo a interpretação
Um “transportador” é sério?
Não. O animal é geralmente saudável, mas pode transmitir a mutação ao seu descendência.
E se um animal for “afetado”?
Ele carrega duas cópias mutadas. Os sinais clínicos são esperados dependendo a doença. Não deveria ser criado.
Por que existem diferenças entre homem/mulher?
Algumas doenças estão ligadas ao sexo, pelo que a sua expressão varia dependendo do sexo do animal.
Prever descendência
N/N (nao-portador)
N/AIS-QH (Operadora)
AIS-QH/AIS-QH (Afetado)
Perguntas frequentes sobre testes de DNA
O que este teste de DNA detecta?
This DNA test detects the mutation associated with Androgen Insensitivity Syndrome In Quarter Horse (AIS-QH) in order to identify clear, carrier, or at-risk animals.
Por que testar um animal reprodutor?
Os testes de DNA ajudam os criadores a planejar acasalamentos mais seguros e a reduzir o risco de transmissão da mutação aos descendentes.
Qual é o modo de herança deste teste?
O modo de herança relatado para este teste é X-Linked Recessive.
Qual mutação é analisada neste teste?
This test analyses the mutation AR c.1A/G.
Um animal portador é necessariamente afetado?
Não necessariamente. A interpretação depende do padrão de herança e do genótipo resultante.
Referências
Révay T, Villagómez D A F, Brewer D, Chenier T, King W A. GTG mutation in the start codon of the androgen receptor gene in a family of horses with 64,XY disorder of sex development. Sex Dev. 2012;6(1-3):108-16. doi: 10.1159/000334049. Epub 2011 Nov 15.