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基于单个分子实时测序的Triplophysa yarkandensis基因组的染色体层次组合

Jiacheng She¹, Shengao Chen², Xuan Liu¹

¹College of Fisheries, Huazhong Agricultural University, Wuhan, 430070, China.

Scientific data

|January 5, 2024

概括

研究人员对临灭绝的Triplophysa yarkandensis鱼基因组进行了测序,实现了染色体水平的组装. 这为了解这种独特的淡水物种的适应和保护提供了至关重要的资源.

科学领域:

基因组学就是基因组学.
水生生物学水生生物学
保护遗传学保护遗传学

背景情况:

中国新疆特有的淡水鱼Triplophysa yarkandensis正处于极度危的状态.
了解它的基因组对于保护工作和研究适应是至关重要的.

研究的目的:

为了生成Triplophysa yarkandensis的染色体层次的基因组组合.
为保护和进化研究提供基因组资源.

主要方法:

使用PacBio测序进行基因组组装 (520.64 Mb,contig N50 1.30 Mb).
采用了Hi-C技术进行染色体映射,产生了25个染色体序列 (脚手架N50 19.14 Mb).
使用BUSCO评估基因组完整性 (组装为94.1%,基因为91.5%).

主要成果:

成功组装了Triplophysa yarkandensis的染色体水平基因组.
在520.64 Mb的基因组内预测了25505个蛋白质编码基因.
确定了基因组重复序列,占基因组的27.29%.

结论:

染色体水平的基因组为Triplophysa yarkandensis提供了一个基本的资源.
比较基因组学可以阐明盐-适应的机制.
基因组数据对于这种危物种的有效保护策略至关重要.

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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.