“清晰”是什么意思？
该动物不携带突变。就不会发展成这种疾病 并且不会将其传递下去。
马 栗子变种 Ea（扩展 ea）
The Chestnut Variant Ea (Extension Ea) DNA test in horses is essential for breeders aiming to determine coat color genetics accurately. This genetic test identifies the presence of the Ea allele, which influences the extension gene responsible for red pigment production. Understanding the Chestnut Variant Ea helps predict coat colors like chestnut and sorrel, aiding in selective breeding decisions. Accurate DNA testing ensures better management of breeding programs and enhances the value of offspring. The Extension Ea test is quick, reliable, and widely used in equine genetics today. By incorporating this test, breeders can achieve desired coat colors and maintain genetic diversity. Stay ahead in horse breeding with the Chestnut Variant Ea DNA test.
缩写 ： extension ea
分析突变： MC1R c.250G/A
继承： 常染色体隐性遗传
缩写词
extension ea
观察频率
临床分类
毛发相关特征
分析突变
MC1R c.250G/A
p.(D84N)
p.(D84N)
继承方式
常染色体隐性遗传 （完全的）
备用名称：
E轨迹
测试总结：
The Chestnut Variant Ea (extension ea) in horses is a specific genetic marker that influences coat color. This variant affects the production of red pigment, resulting in chestnut or sorrel-colored coats. DNA testing for the Ea allele helps breeders predict and select desired coat colors in their horses. Understanding this gene is important for managing breeding programs and maintaining color consistency. Overall, the Chestnut Variant Ea plays a key role in equine coat color genetics.
可从包装中获取： Standard
我们的包装中已包含此 DNA 测试 Standard — 也是包的一部分 Standard, Advanced, Complete。
查看 DNA 测试包 →选择最适合您的动物繁殖或健康策略的包装。
Understanding the Chestnut Variant Ea (Extension ea) in Horses
The Chestnut Variant Ea, also known as the extension gene, is a specific genetic condition that affects the coat color of horses. This variant plays a crucial role in determining the presence of red pigment in the horse's coat, which is responsible for the chestnut coloration. Understanding this gene is essential for breeders and owners who wish to predict coat color outcomes in their horses.
The Genetic Basis of the Chestnut Variant Ea
The Chestnut Variant Ea is an allele at the Extension locus (E) on the horse's genome. This gene influences the production of pheomelanin, the pigment that gives rise to red and chestnut coat colors. Horses with at least one dominant E allele will express black or bay colors, while those that are homozygous for the recessive ea allele exhibit the chestnut coloration. This genetic trait is inherited in a Mendelian fashion, meaning that it can be passed down from parents to offspring in predictable patterns.
Clinical Significance of the Chestnut Variant Ea
While the Chestnut Variant Ea primarily affects coat color, it does not have direct implications for the horse's health or performance. However, understanding this genetic variant is significant for breeding practices, as it allows breeders to make informed decisions regarding color genetics in their breeding programs. Knowledge of this variant can help breeders avoid unexpected color outcomes in foals and can also influence the market value of horses based on their coat color.
Implications for Breeding and Color Prediction
Breeders can utilize the information regarding the Chestnut Variant Ea to strategically pair horses in order to achieve desired coat colors in their foals. For instance, if a breeder aims to produce chestnut offspring, they can select mates that carry the ea allele. This genetic insight enhances the ability to predict and control coat color outcomes, which can be an important factor for certain buyers and enthusiasts in the equine market.
结论
The Chestnut Variant Ea (extension ea) is an important genetic marker in horses that influences coat color, particularly the chestnut hue. By understanding the inheritance patterns of this variant, horse owners and breeders can make informed decisions that not only cater to aesthetic preferences but also contribute to the advancement of breeding practices. While it does not affect the horse's overall health, this genetic knowledge enhances the breeding process, allowing for greater predictability and satisfaction in horse ownership.
被认可参加测试的品种： 栗子变种 Ea（扩展 ea）
- Belgian Draft
🧬 Interpretation of genotypes extension ea
基因型
地位
🟡 E/E
非运营商 - 无影响
🟡 E/ea
运营商 - 无影响
❌ ea/ea
Affected - Chestnut
常见问题解答：理解解释
“航母”是认真的吗？
不会。该动物通常是健康的，但可以将突变传播给它的 后代。
如果动物“受到影响”怎么办？
它携带两个突变的副本。预计临床症状取决于 这种疾病。它不应该被培育。
为什么男性/女性之间存在差异？
有些疾病与性别相关，因此其表现因性别而异 动物的性别。
预测后代
E/E （%e9%9d%9e%e6%89%bf%e8%bf%90%e4%ba%ba）
E/ea （载体）
ea/ea （做作的）
DNA 测试常见问题解答
这个 DNA 测试检测到什么？
This DNA test detects the mutation associated with Chestnut Variant Ea (extension ea) in order to identify clear, carrier, or at-risk animals.
为什么要测试繁殖动物？
DNA 测试有助于饲养员计划更安全的交配并降低将突变传播给后代的风险。
这个测试的继承模式是什么？
该测试报告的遗传模式是常染色体隐性遗传。
此测试分析哪种突变？
This test analyses the mutation MC1R c.250G/A.
携带动物是否必然受到影响？
未必。解释取决于遗传模式和产生的基因型。
参考
Wagner H J, Reissmann M. New polymorphism detected in the horse MC1R gene. Anim Genet. 2000 Aug;31(4):289-90. doi: 10.1046/j.1365-2052.2000.00655.x.