西部红豆杉的基因组选择:从概念验证到实际应用。

IF 8.1 1区 生物学 Q1 PLANT SCIENCES New Phytologist Pub Date : 2024-08-06 DOI:10.1111/nph.20022
Omnia Gamal El-Dien, Tal J. Shalev, Macaire M. S. Yuen, Lise Van der Merwe, Matias Kirst, Alvin D. Yanchuk, Carol Ritland, John H. Russell, Joerg Bohlmann
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引用次数: 0

摘要

森林面临着许多威胁。传统的育种可能过于缓慢,无法培育出适应性良好的树木,而基因组选择(GS)可以加快这一进程。我们描述了在西部红豆杉(WRC,Thuja plicata)中对基因组选择从概念验证到实际应用的全面研究。利用基因组数据,我们在树木的训练群体(TrP)上建立了模型,以预测目标幼苗群体(TaP)的生长、心材化学和叶面化学性状的育种值(BV)。我们使用交叉验证来评估 TrP 中的预测准确性(PACC);我们还验证了 TaP 中早期表达的叶面性状模型。不同世代、环境和年龄的预测准确率都很高。在TrP中,无亲缘关系个体间的PACC没有降低到零,而在TaP中仅略有降低,这证实了该模型具有很强的连锁不平衡和跨育种世代产生准确预测的能力。基因组 BV 预测结果与来自血统的预测结果相关,但由于 GS 能够捕捉孟德尔取样项,因此显示出更大的家系内变异范围。通过在多性状选择中使用预测的TaP BV,我们在功能上实现了GS,并将其集成到一个可操作的树育种程序中。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

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Genomic selection in western redcedar: from proof of concept to operational application

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来源期刊
New Phytologist
New Phytologist 生物-植物科学
自引率
5.30%
发文量
728
期刊介绍: New Phytologist is an international electronic journal published 24 times a year. It is owned by the New Phytologist Foundation, a non-profit-making charitable organization dedicated to promoting plant science. The journal publishes excellent, novel, rigorous, and timely research and scholarship in plant science and its applications. The articles cover topics in five sections: Physiology & Development, Environment, Interaction, Evolution, and Transformative Plant Biotechnology. These sections encompass intracellular processes, global environmental change, and encourage cross-disciplinary approaches. The journal recognizes the use of techniques from molecular and cell biology, functional genomics, modeling, and system-based approaches in plant science. Abstracting and Indexing Information for New Phytologist includes Academic Search, AgBiotech News & Information, Agroforestry Abstracts, Biochemistry & Biophysics Citation Index, Botanical Pesticides, CAB Abstracts®, Environment Index, Global Health, and Plant Breeding Abstracts, and others.
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