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宽叶 (Dipteris shenzhenensis) 的染色体级基因组组合

Jiangping Shu^1,2,3, Yongxia Zhang¹, Tengbo Huang⁴

¹Guangdong Provincial Key Laboratory for Plant Epigenetics, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen, 518061, China.

Scientific data

|March 22, 2025

概括

研究人员测序了第一个染色体水平的基因组Dipteris shenzhenensis,一个遗迹属. 这种高质量的基因组为研究的进化,古气候和潜在的药用提供了至关重要的资源.

科学领域:

植物基因组学植物基因组学
古植物学是古植物学.
进化生物学是进化的生物学.

背景情况:

迪普特里斯是一种遗留植物属,对了解中生纪古气候和植物地理至关重要.
对Dipteris的有限基因组数据阻碍了对其进化和药用特性的研究.

研究的目的:

测序和组装第一个染色体级的Dipteris shenzhenensis的基因组.
为提供必要的基因组资源.

主要方法:

全基因组测序和Dipteris shenzhenensis的组装.
对基因组大小,contig N50,GC含量和BUSCO分数的分析.
重复序列和端粒的识别.
蛋白质编码基因的预测和功能注释.

主要成果:

一个1.9 Gb的染色体级基因组被组装在一起,具有很高的连续性 (N50 4.75 Mb) 和完整性 (98.3% BUSCO).
98.37%的序列在33个伪染色体上,其中71.97%被确定为重复序列.
预测了26,471个编码蛋白质的基因,其中92.5%的功能注释.

结论:

第一个高质量的Dipteris基因组为研究提供了宝贵的资源.
这种基因组将促进对系统进化,古气候和的药用价值的研究.

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Genome Annotation and Assembly

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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.