赛马体育能力差异的分子机制 赛马体育能力差异的分子机制 基于整个转录基因组测序
Qiuping Huang1, Wanlu Ren1,2, Dehaxi Shan1
1College of Animal Science, Xinjiang Agricultural University, Urumqi 830052, China.
Biology
|October 29, 2025
概括
转录组测序揭示了关键的基因和RNAs,这些基因和RNAs影响了Yili马的运动表现. 这项研究确定了马匹速度和耐力背后的分子机制,有助于发现提高赛车能力的候选基因.
科学领域:
- 马类基因组学和转录基因组学
- 运动表现的分子生物学
- 在动物科学中的比较基因组学.
背景情况:
- 了解运动表现的遗传基础对于马的繁殖和训练至关重要.
- 伊利马是赛马中的重要品种,但它们的性能分子机制尚未完全阐明.
- 转录组测序提供了一个强大的工具来探索与性能相关的基因表达差异.
研究的目的:
- 为了比较Yili马的血液转录组与杰出与平均5000米比赛表现.
- 识别差异表达的信使RNA (mRNA),长非编码RNA (lncRNA) 和圆形RNA (circRNA).
- 阐明与马匹运动表现相关的监管网络和丰富的途径.
主要方法:
- 从六只健康的四岁的伊利马匹收集了血液样本,分为优秀 (n=3) 和普通 (n=3) 的性能组.
- 用RNA测序 (RNA-Seq) 来分析两个组的转录组.
- 进行了生物信息分析,以确定差异表达的RNA和丰富的途径.
主要成果:
- 总共有2298个mRNAs,264个lncRNAs和215个circRNAs被发现在各组之间表达不同.
- 包括EGR1,FOSB,MRPL1,LOC100049811,SIRPB2和CYTB在内的关键基因被确定为运动表现的潜在调节者.
- 丰富的途径涉及能量代谢,蛋白质平衡和肌肉重塑.
结论:
- 这项研究揭示了与Yili马的运动表现相关的血液转录组中的显著分子差异.
- 已识别的基因和RNA可提供有关马匹速度和耐力的生物过程的见解.
- 这项研究为识别候选基因和理解马匹运动表现的分子基础提供了宝贵的参考.
更多相关视频
12:11Analysis of Chromosome Segregation, Histone Acetylation, and Spindle Morphology in Horse Oocytes
Published on: May 11, 2017
11.4K
10:08Genetic Mapping of Thermotolerance Differences Between Species of Saccharomyces Yeast via Genome-Wide Reciprocal Hemizygosity Analysis
Published on: August 12, 2019
17.6K
相关概念视频
RNA-seq
11.7K
RNA sequencing, or RNA-Seq, is a high-throughput sequencing technology used to study the transcriptome of a cell. Transcriptomics helps to interpret the functional elements of a genome and identify the molecular constituents of an organism. Additionally, it also helps in understanding the development of an organism and the occurrence of diseases.
Before the discovery of RNA-seq, microarray-based methods and Sanger sequencing were used for transcriptome analysis. However, while...
Before the discovery of RNA-seq, microarray-based methods and Sanger sequencing were used for transcriptome analysis. However, while...
11.7K
Incomplete Dominance
29.6K
Gregor Mendel's work (1822 - 1884) was primarily focused on pea plants. Through his initial experiments, he determined that every gene in a diploid cell has two variants called alleles inherited from each parent. He suggested that amongst these two alleles, one allele is dominant in character and the other recessive. The combination of alleles determines the phenotype of a gene in an organism.
29.6K
Ribosome Profiling
4.1K
Ribosome profiling or ribo-sequencing is a deep sequencing technique that produces a snapshot of active translation in a cell. It selectively sequences the mRNAs protected by ribosomes to get an insight into a cell’s translation landscape at any given point in time.
Applications of ribosome profiling
Ribosome profiling has many applications, including in vivo monitoring of translation inside a particular organ or tissue type and quantifying new protein synthesis levels.
The technique...
Applications of ribosome profiling
Ribosome profiling has many applications, including in vivo monitoring of translation inside a particular organ or tissue type and quantifying new protein synthesis levels.
The technique...
4.1K
Epistasis
50.1K
In addition to multiple alleles at the same locus influencing traits, numerous genes or alleles at different locations may interact and influence phenotypes in a phenomenon called epistasis. For example, rabbit fur can be black or brown depending on whether the animal is homozygous dominant or heterozygous at a TYRP1 locus. However, if the rabbit is also homozygous recessive at a locus on the tyrosinase gene (TYR), it will have an unshaded coat that appears white, regardless of its TYRP1...
50.1K
Epistasis Analysis
5.6K
Although Mendel chose seven unrelated traits in peas to study gene segregation, most traits involve multiple gene interactions that create a spectrum of phenotypes. When the interaction of various genes or alleles at different locations influences a phenotype, this is called epistasis. Epistasis often involves one gene masking or interfering with the expression of another (antagonistic epistasis). Epistasis often occurs when different genes are part of the same biochemical pathway. The...
5.6K
Background and Environment Affect Phenotype
7.4K
Although the genetic makeup of an organism plays a major role in determining the phenotype, there are also several environmental factors, such as temperature, oxygen availability, presence of mutagens, that can alter an organism’s phenotype.
An example of how genetic background affects phenotype can be seen in horses. The Extension gene in horses is responsible for their coat color. A wild-type gene (EE) produces black pigment in the coat, while a mutant gene (ee) produces red pigment. A...
An example of how genetic background affects phenotype can be seen in horses. The Extension gene in horses is responsible for their coat color. A wild-type gene (EE) produces black pigment in the coat, while a mutant gene (ee) produces red pigment. A...
7.4K
