一个新的分析工作流程,用于从元基因组中同时解析原生生物和真核生物微生物基因
Wei Zhang1, Yanmei Zheng2, Guomin Han2,3
1Anhui Province Key Laboratory of Rice Genetics and Breeding (Rice Research Institute, Anhui Academy of Agricultural Sciences), Hefei, Anhui, China.
PeerJ
|February 16, 2026
概括
这项研究引入了一种新的工作流程,用于预测复杂的元基因组中的微生物基因. 该方法提高了真核生物和原核生物基因识别的准确性和完整性.
科学领域:
- 转基因组学是指转基因组学.
- 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:
- 大基因基因基因预测具有挑战性,特别是在高真核细胞含量的情况下.
- 需要准确识别 prokaryotic 和 eukaryotic 基因.
研究的目的:
- 开发和验证一个改进的分析工作流程,以便从元基因组数据同时预测 prokaryotic 和 eukaryotic 基因.
- 为了提高编码序列检索的准确性和完整性.
主要方法:
- 在不同的基因组上评估了MetaGeneMark和MetaEuk的准确性.
- 开发了一种工作流程:真核基因预测 (MetaEuk),掩盖和随后的 prokaryotic 基因预测 (MetaGeneMark/metaProdigal).
- 使用自定义的Perl脚本掩盖预测的真核生物和部分 prokaryotic 基因.
主要成果:
- 工作流维持了真核生物基因预测量和长度,与单独的MetaEuk相比.
- 与独立的 prokaryotic 预测器相比,预测的 prokaryotic 和病毒基因增加了 14-18%.
- 经过验证的工作流产生了明显更长的平均基因长度,这表明碎片化减少和完整性改善.
结论:
- 集成的工作流允许快速全面地检索高质量的 prokaryotic 和 eukaryotic 编码序列.
- 这种方法有效地解决了在真核细胞丰富的元基因组中基因预测的挑战.
- 为各种元基因组样本提供了改进的基因完整性和完整性.
相关概念视频
03:36Genome Annotation and Assembly
21.1K
The genome refers to all of the genetic material in an organism. It can range from a few million base pairs in microbial cells to several billion base pairs in many eukaryotic organisms. Genome assembly refers to the process of taking the DNA sequencing data and putting it all back together in a correct order to create a close representation of the original genome. This is followed by the identification of functional elements on the newly assembled genome, a process called genome annotation.
21.1K
02:16Comparing Mitochondrial, Chloroplast, and Prokaryotic Genomes
17.1K
The present-day mitochondrial and chloroplast genomes have retained some of the characteristics of their ancestral prokaryotes and also have acquired new attributes during their evolution within eukaryotic cells. Like prokaryotic genomes, mitochondrial and chloroplast genomes neither bind with histone-like proteins nor show complex packaging into chromosome-like structures, as observed in eukaryotes. Unlike mitotic cell divisions observed in eukaryotic cells, mitochondria and chloroplasts...
17.1K