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在Xanthoceras sorbifolium的两种哈普洛型解析的端粒到端粒基因组组合

Yu Liu^1,2, Yijun Chen^2,3, Zizheng Ren²

¹National Engineering Laboratory of Crop Stress Resistance Breeding, School of Life Sciences, Anhui Agricultural University, Hefei, 230036, China.

Scientific data

|May 14, 2025

概括

研究人员介绍了第一个高质量的,哈普洛型解析的黄 (Xanthoceras sorbifolium) 基因组. 这种基因组资源将促进这一重要植物的育种和进化研究.

科学领域:

植物基因组学植物基因组学
进化生物学是进化的生物学.
生物信息学是一种生物信息学.

背景情况:

黄 (Xanthoceras sorbifolium) 对于中国北部的景观设计,荒漠化控制和石油生产至关重要.
之前黄的基因组资源有限,阻碍了先进的研究.

研究的目的:

为了生成第一个已解析的单元型,Telomere-to-telomere (T2T) 基因组的黄角.
为黄黄繁殖和进化研究提供高质量的基因组资源.

主要方法:

使用了PacBio的HiFi和Hi-C测序技术.
执行了端粒到端粒 (T2T) 基因组组装和注释.
分析了重复的元素,基因含量和LTR-RT爆发.

主要成果:

产生了两个完整的T2T黄角基因组 (464.34468.97 Mb) 与所有的中间体和端粒.
识别了广泛的重复元素 (例如. 67.99%) 和增加的基因数量 (平均值). 增加了50.16%).
发现了最近的LTR-RT爆发 (0.450.48 Mya) 并注释了93.90%的基因.

结论:

高质量的黄蜂基因组为研究基因组变异和进化提供了宝贵的资源.
这些发现支持进一步研究黄黄蜂的遗传关系,基因重复和NLR基因分布.
这项工作将促进有针对性的育种计划,以改善黄角.

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