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一个高质量的染色体层次的基因组组合临灭绝的树木Kmeria septentrionalis

Chen-Yu Shi¹, Guo-Le Qin¹, Ying-Can Qin¹

¹Guangxi Key Laboratory of Sericulture Ecology and Applied Intelligent Technology, School of Chemistry and Bioengineering, Hechi University, Hechi, 546300, China.

Scientific data

|July 13, 2024

概括

为临灭绝的中国树木Kmeria septentrionalis生成了一种高质量的基因组组. 这种关键的遗传资源有助于保护和进化研究这个马格诺利亚家族物种.

科学领域:

基因组学就是基因组学.
保护生物学保护生物学
植物学植物学

背景情况:

克梅里亚北方 (Kmeria septentrionalis) 是一种临灭绝的树种,是中国广西本土的.
由于缺乏遗传信息和高质量的基因组数据,保护工作和生物研究受到阻碍.

研究的目的:

为了生成Kmeria septentrionalis的染色体级基因组组.
为保护和进化研究提供基本的遗传资源.

主要方法:

最初的基因组组装是2.57 Gb,具有11.93 Mb的N50结合.
用于脚手架和固的Hi-C技术连接到19个伪染色体.
最终组装尺寸为2.54 Gb,脚手架N50的尺寸为135.08 Mb.

主要成果:

定了98.83%的结合体到19个伪染色体.
实现了98.9%的BUSCO完整性,表明高基因含量准确性.
确定了1.67Gb的重复元素和35,927个编码基因.

结论:

染色体水平的基因组组合是Kmeria septentrionalis保护的宝贵资源.
有助于理解这一危物种的遗传特征和生物特性.
提供了Magnoliaceae家族内进化研究的基础.

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