在LMBR1内存在一种主要的误解变异,与马类多多动性相关
Yue Luan1, Ling Zhong1, Cao Li1
1State Key Laboratory of Animal Biotech Breeding, National Engineering Laboratory for Animal Breeding, Laboratory of Animal Genetics, Breeding and Reproduction, Ministry of Agriculture and Rural Affairs, College of Animal Science and Technology, China Agricultural University, Beijing, China.
Communications biology
|November 1, 2024
概括
研究人员在LMBR1基因中发现了一种遗传变异,该基因与马的多爪有关. 这一发现揭示了马群体肢体发育异常的遗传基础.
科学领域:
- 兽医遗传学 兽医遗传学
- 发展生物学 发展生物学
- 马类科学 马类科学
背景情况:
- 多指纹症是一种先天性四肢异常,自古以来就在马身上被记录下来.
- 马群多肢症的遗传基础在很大程度上是未知的,这阻碍了对其遗传和发育的理解.
- 对马的健康和理解进化特征而言,研究多爪症至关重要.
研究的目的:
- 为了确定特定的基因和遗传变异与马匹的多肢性关联.
- 阐明已识别的变异对基因表达和细胞过程的功能影响.
- 为了在马群中建立一个多巴巴的潜在遗传标志物.
主要方法:
- 利用父亲的半兄弟姐妹家族的马来选遗传变异.
- 采用基因查来识别与可疑遗传方式相匹配的变异.
- 进行基因编辑实验,以验证 LMBR1 基因中候选变异的功能影响.
主要成果:
- 在65个基因中过了77个变异,在LMBR1基因中识别了一个错误变异 (rs1138485164).
- 基因编辑证实,该变体降低了LMBR1表达的调节,增强了细胞增殖,并抑制了细胞亡.
- 已识别的LMBR1变体是其在马类多达克提里症中的作用的强有力的候选者.
结论:
- LMBR1基因和已识别的变体与马匹多爪症的发展有关.
- 该变异对基因表达和细胞活力的影响为其与该疾病的关联提供了分子基础.
- 需要进一步的研究来证实LMBR1变种与多巴的直接因果关系.
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