虫基因组学:黄昏还是黎明?
Vladislav Ilík1, Erich M Schwarz2, Eva Nosková1
1Institute of Vertebrate Biology, Czech Academy of Sciences, Brno, Czech Republic; Department of Botany and Zoology, Faculty of Science, Masaryk University, Brno, Czech Republic.
Trends in parasitology
|April 27, 2024
概括
对于大多数虫物种,特别是那些感染野生动物的虫物种,缺乏基因组数据. 从单个虫组装基因组为研究这些被忽视的寄生虫线虫提供了一个有希望的新途径.
科学领域:
- 寄生虫学的寄生虫学
- 基因组学就是基因组学.
- 遗体学 遗体学 是一个学科.
背景情况:
- 虫是全球重要的健康和经济负担.
- 只有很少一部分已知的虫物种有可用的遗传或基因组数据.
- 现有的基因组数据已经过时,阻碍了当前的研究.
研究的目的:
- 总结一下虫基因组学目前的情况.
- 为突出获取虫基因组数据的挑战.
- 通过基因组学识别促进虫研究的机会.
主要方法:
- 审查关于虫遗传学和基因组学的现有文献.
- 对目前基因组数据可用性缺口的分析.
- 对基因组组装新兴技术的讨论.
主要成果:
- 仅对少数虫物种存在有限的基因组数据,其中96种缺乏任何基因组信息.
- 大多数虫的多样性,特别是在野生动物宿主中,仍然未被测序.
- 最近的进展表明,单虫基因组组装是一种可行的方法.
结论:
- 虫物种,特别是野生动物的基因组数据存在重大差距.
- 单虫基因组组装为扩大基因组资源提供了关键机会.
- 需要进一步的研究来克服挑战,并利用虫基因组学的潜力.
相关概念视频
02:32Position-effect Variegation
In 1928, a German botanist Emil Heitz observed the moss nuclei with a DNA binding dye. He observed that while some chromatin regions decondense and spread out in the interphase nucleus, others do not. He termed them euchromatin and heterochromatin, respectively. He proposed that the heterochromatin regions reflect a functionally inactive state of the genome. It was later confirmed that heterochromatin is transcriptionally repressed, and euchromatin is transcriptionally active chromatin.
02:19Circadian Rhythms and Gene Regulation
The biological clock is involved in many aspects of regulating complex physiology in all animals. It was in 1935 when German zoologists, Hans Kalmus and Erwin Bünning, discovered the existence of circadian rhythm in Drosophila melanogaster. However, the internal molecular mechanisms behind the circadian clock remained a mystery until 1984, when Jeffrey C. Hall, Michael Rosbash, and Michael W. Young discovered the expression of the Per gene oscillating over a 24-hour cycle. In subsequent years,...
02:11Reporter Genes
Reporter genes are a type of protein-coding gene that are often tagged to a gene of interest. Once inside a target cell, reporter genes usually produce visually identifiable characteristics like fluorescence and luminescence when expressed along with the gene of interest. Thus, reporter genes “report” the presence or absence of genes of interest in an organism, determine the gene expression pattern, or track the physical location of a DNA segment or protein in the cell.
Commonly used reporter...
Commonly used reporter...