GWAS在园艺作物非生物胁迫中的研究进展
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扬州大学

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国家自然科学基金


Genome-wide Association Studies for Horticultural Crops underlying Abiotic Stress
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扬州大学

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National Natural Science Foundation of China

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    摘要:

    园艺作物在栽培过程中广受高温、低温、淹涝、高盐等非生物胁迫,不仅严重影响其生长发育,还限制其适应性及栽培范围。全基因组关联分析(genome-wide association study, GWAS)是解析复杂性状遗传规律的有效策略。迄今,国内外学者运用GWAS鉴定到了多个与园艺作物非生物胁迫抗性显著关联的遗传点位,已成为挖掘重要农艺性状关键基因及研究基因功能的有效方法手段,也为推动园艺作物由传统育种向高效、定向分子设计育种转变奠定了重要线索。本文着重介绍GWAS的原理、特点及影响因素,并系统性梳理GWAS在园艺作物非生物胁迫研究中的研究进展,并对今后运用GWAS并结合其它方法精准挖掘关键基因进行了展望。

    Abstract:

    Horticultural crops are widely subjected to abiotic stresses such as extreme temperatures, waterlogging and high salinity, which not only seriously affect their growth and development, but also limit their adaptability and geographic distribution. Genome-wide association study (GWAS) is an effective approach developed in recent years to associate specific genetic variations with particular abiotic stress tolerance. Many causative allele(s)/loci have been identified using the power of this approach over the past decade. GWAS results can serve as a foundation experiment by providing insights into the genetic architecture of the trait, suggesting candidates for further functional study, and breeding new varieties with the gene pyramiding molecular design. In this review paper, we first provide the readers with the principle, characteristics and influencing factors of GWAS. Then, the applications of GWAS in studying of abiotic stresses in horticultural crops were presented in detail. We conclude this paper with important guidelines for better applications of GWAS in the further.

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  • 收稿日期:2022-02-13
  • 最后修改日期:2022-02-23
  • 录用日期:2022-03-03
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