子品种的染色体规模基因组组合和注释Chowghat绿矮人绿矮人

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M K Rajesh^1,2, Roli Budhwar³, Rohit Shukla³

¹ICAR-Central Plantation Crops Research Institute, Kasaragod, Kerala, 671124, India. rajesh.mk@icar.gov.in.

Scientific reports

|November 20, 2024

概括

一个高质量的子基因组被测序,揭示了对抗病和进化的洞察力. 这种基因组资源有助于改善子的特征和了解树家族.

科学领域:

基因组学就是基因组学.
植物科学植物科学
分子生物学分子生物学

背景情况:

子棕 (Cocos nucifera L.) 是一种重要的作物,但它的遗传资源一直是有限的.
了解其基因组对于改善农学特征和研究其在Arecaceae家族中的进化历史至关重要.

研究的目的:

测序和组装一个高品质的,染色体级基因组的Chowghat绿矮人子品种.
识别与根 () 病耐药性相关的基因,并分析基因组进化.
为未来的研究和育种工作开发一个全面的基因组资源.

主要方法:

使用了Illumina,PacBio,ONT和Hi-C测序技术的组合.
组装了一个大约2.68Gb的染色体级基因组,定97%至16个伪分子.
标注了34483个编码蛋白质的基因,并分析了重复序列,包括长终端重复 (LTR).

主要成果:

通过174 Mb的N50支架和高BUSCO完整性 (96.80%) 实现了染色体级组装.
确定了2.19 Gb的重复序列,其中LTR是最丰富的 (53.76%).
证实了两个全基因组复制 (WGD) 事件,并发现了1368个耐药性基因类似物 (RGA).

结论:

高质量的子基因组为了解基因组进化和增强农学特征提供了宝贵的资源.
开发的"Kalpa基因组资源"网络服务器促进了对基因组数据的访问,支持比较基因组学和基因组驱动的育种.
这项工作显著推进了子遗传研究和育种计划,以提高作物性能和抗病能力.

关键词:

子基因组是指子的基因组数据库数据库数据库是一个数据库.基因组浏览器浏览器可转移的要素是可以转移的.网络服务器的Web服务器.整个基因组的重复.

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