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这是一个Echiura Urechis unicinctus的染色体级基因组组合

Yunying Cheng¹, Ruanni Chen², Jinlin Chen²

¹Fujian Key Laboratory on Conservation and Sustainable Utilization of Marine Biodiversity, Fuzhou Institute of Oceanography, College of Geography and Oceanography, Minjiang University, Fuzhou, 350108, China. 2680@mju.edu.cn.

Scientific data

|January 18, 2024

概括

这项研究为Urechis unicinctus,一种具有营养价值的海洋虫提供了高质量的染色体级基因组组. 这种基因组资源有助于理解它的进化,并促进分子繁殖的努力.

科学领域:

海洋生物学海洋生物学
基因组学就是基因组学.
分子进化分子进化

背景情况:

埃奇乌拉 (Echiura) 是一种海洋虫家族,它需要强有力的遗传学证据来准确地确定遗传学位置.
乌雷奇斯 (Urechis unicinctus) 是一个Echiuran物种,以其营养,药用特性和在潮区的弹性而闻名.

研究的目的:

为了生成Urechis unicinctus的高质量的染色体级基因组组.
为基因组学分析,基因组进化研究和U. unicinctus.分子育种提供基础资源.

主要方法:

结合了PacBio长读,Illumina短读和Hi-C测序技术.
进行了基因组组装,对重复序列的注释,蛋白质编码基因和非编码RNA (miRNA,tRNA,rRNA,snRNA).
通过BUSCO分析评估基因组的完整性.

主要成果:

为U. unicinctus生成了约1,138.6 Mb的染色体级基因组组,其中97.82%的基因被定在17个伪染色体中.
标注揭示了482.1 Mb的重复序列,21,524个蛋白质编码基因和各种非编码RNA.
基因组组和基因预测完整性分别得到了93.5%和91.5%的验证.

结论:

这项研究显著提高了U. unicinctus基因组组装的质量.
这种基因组资源对于未来的Echiuran基因组进化和分子生物学研究至关重要.
该组件为分子育种提供了基础,并更深入地了解了U. unicinctus的适应性.

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