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基于表型特征和SNP标记物的Liriodendron的综合评估和DNA指纹的生殖质突变

Heyang Yuan¹, Tangrui Zhao¹, Xiao Liu¹

¹State Key Laboratory of Tree Genetics and Breeding, Co-Innovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing 210037, China.

Plants (Basel, Switzerland)

|September 13, 2025

概括

这项研究使用表型和基因组数据评估了297个Liriodendron生殖质加入,揭示了显著的遗传多样性和特征相关性. 为了保护和利用这些宝贵的树木资源,建立了DNA指纹.

科学领域:

植物遗传学和育种.
保护生物学保护生物学
林业和园艺林业和园艺

背景情况:

种子质资源对于植物遗传多样性,育种和品种改进至关重要.
利里奥登德龙是一种罕见的属,具有显著的生态,装饰和经济价值,但缺乏标准化的评估系统.
对生殖细胞库进行系统评估对于保护和可持续使用至关重要.

研究的目的:

通过表型和分子数据全面评估利里奥登德龙的胚胎质.
建立表型特征和分子标记物之间的相关性.
开发DNA指纹,以准确识别和保护利里奥登德龙资源.

主要方法:

使用34个表型特征和全基因组再测序数据,对297个丽里奥登德龙加入的评估.
使用SNP标记器进行集群分析,主要组件分析 (PCA) 和人口结构分析.
在表型特征和SNP之间进行关联分析,并使用核心SNP标记器构建DNA指纹.

主要成果:

观察到大量的表型变异,特征之间存在显著的相关性.
现型数据和SNP标记器始终将加入分为三个不同的集群.
利里奥登德龙 (Liriodendron sino-americanum) 呈现出最高的遗传多样性;25个显著的SNP位点与关键特征有关,其中包括一个强烈的分支数的关联.

结论:

本研究提供了Liriodendron生殖质的系统性表征,识别了关键的SNP和特征和标记之间的相关性.
开发的DNA指纹可以进行差异分析和遗传多样性评估.
结果提供了理论基础和技术支持,用于保护,识别和利用Liriodendron生殖质在育种和商业应用中.

关键词:

通过DNA指纹检测.里里奥登德龙 (Liriodendron) 是一种植物.在SNP中,SNP是SNP.遗传多样性遗传多样性胚胎细胞质评价的评估

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