LOGO小麦:基于深度学习的预测,对小麦中非编码变体的监管效应进行预测
Lingpeng Kong1, Hong Cheng1, Kun Zhu1,2
1Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, No. 97 Buxin Road, Dapeng New District, Shenzhen 518124, China.
Briefings in bioinformatics
|January 10, 2025
概括
我们开发了小麦基因组语言 (LOGOWheat),这是一种深度学习工具,用于预测小麦中非编码变异的监管效应. 这种方法准确地识别功能遗传变异,有助于作物改进.
科学领域:
- 基因组学就是基因组学.
- 生物信息学是一种生物信息学.
- 计算生物学 计算生物学
背景情况:
- 识别非编码基因变异的监管效应至关重要,但具有挑战性.
- 小麦表观基因组数据的进步为功能变异模型提供了新的途径.
研究的目的:
- 引入小麦基因组语言 (LOGOWheat),这是一个深度学习工具,用于预测小麦中非编码变异的监管影响.
- 为了能够准确地识别和优先考虑小麦的功能遗传变异.
主要方法:
- 利用基于自我注意的,上下文化的预训练语言模型来表示小麦基因组.
- 用表观基因组分析数据微调模型,以辨别基因组序列中的监管代码.
- 采用深度学习来预测染色体特征和变异影响.
主要成果:
- LOGOWheat在预测色素特征方面取得了很高的准确性,平均AUROC为0.8531和AUPRC为0.7633.
- 证明了LOGOWheat在评分和优先考虑因果变异和in silico mutagenesis映射中的实用性.
- 展示了该工具识别高影响力站点和功能动机的能力.
结论:
- LOGOWheat是一个有效的深度学习工具,用于预测小麦中非编码变体的监管影响.
- 该工具有助于发现功能变异,并有助于理解小麦基因组调节.
- 与进化保护信息的整合可以增强从小麦种群中提取潜在的功能变异.
相关概念视频
lncRNA - Long Non-coding RNAs
8.5K
In humans, more than 80% of the genome gets transcribed. However, only around 2% of the genome codes for proteins. The remaining part produces non-coding RNAs which includes ribosomal RNAs, transfer RNAs, telomerase RNAs, and regulatory RNAs, among other types. A large number of regulatory non-coding RNAs have been classified into two groups depending upon their length – small non-coding RNAs, such as microRNA, which are less than 200 nucleotides in length, and long non-coding RNA...
8.5K
Cis-regulatory Sequences
9.7K
Cis-regulatory sequences are short fragments of non-coding DNA that are present on the same chromosomes as the genes that they regulate. These fragments serve as binding sites for transcriptional regulators, proteins that are responsible for controlling gene transcription and differential gene expression across cell types in eukaryotes. Cis-regulatory sequences can be close to the gene of interest or thousands of bases away in the DNA sequence; however, those sequences that are further away are...
9.7K
Regulation of Expression at Multiple Steps
868
The gene expression in cells is regulated at different stages: (i) transcription, (ii) RNA processing, (iii) RNA localization, and (iv) translation. Transcriptional regulation is mediated by regulatory proteins such as transcription factors, activators, or repressors—these control gene expression by initiating or inhibiting the transcription of genes. Once a precursor or pre-mRNA is produced, it undergoes post-transcriptional modification, including 5' capping, splicing, and the...
868
Genome-wide Association Studies-GWAS
12.4K
Genome-wide association studies or GWAS are used to identify whether common SNPs are associated with certain diseases. Suppose specific SNPs are more frequently observed in individuals with a particular disease than those without the disease. In that case, those SNPs are said to be associated with the disease. Chi-square analysis is performed to check the probability of the allele likely to be associated with the disease.
GWAS does not require the identification of the target gene involved in...
GWAS does not require the identification of the target gene involved in...
12.4K


