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对抗 Pseudomonas syringae pv. 的QTL测绘在四平体中的actinidiae (Psa) Actinidiae

Gloria De Mori¹, Fabio Marroni², Guido Cipriani²

¹Department of Agriculture, Food, Environmental and Animal Sciences, University of Udine, Via delle Scienze 206, Udine, 33100, Italy. gloria.demori@uniud.it.

BMC plant biology

|October 14, 2025

概括

研究人员确定了基因区域 (QTLs),与果中的细菌抗癌性有关. 这一发现有助于培育出抗 Pseudomonas syringae pv. 的新果品种. 行为性 (Psa).

科学领域:

植物病理学植物病理学
遗传学是一个遗传学.
园艺园艺园艺园艺

背景情况:

细菌性癌症,是由Pseudomonas syringae pv引起的. 在全球范围内,Psa有很大影响果的生产.
目前Psa的管理策略包括预防和种植不太易受感染的品种,因为没有完全耐药的品种可用.

研究的目的:

确定与果中对Psa的耐药性和易感性相关的遗传位置.
发现参与Psa抵抗机制的候选基因.

主要方法:

使用ddRAD测序中的SNP标记器构建一个高分辨率的跨物种链接地图.
控制的甘接种和表型评估 (损伤长度,感染) 的跨物种基维果种群.
感染组织的定量特征位置 (QTL) 地图和RNA测序 (RNA-seq) 分析. 感染组织的定量特征位置 (QTL) 地图和RNA测序 (RNA-seq) 分析.

主要成果:

在Chr28上发现了Psa抵抗的主要QTL,在Chr4和Chr17上发现了较小的QTL,这些QTL来自A. arguta.
在A. chinensis var.的Chr9上发现了一种与敏感性相关的QTL. 中国人.中国人.
RNA-seq揭示了父母基因型中的差异表达基因,这表明在Psa耐药性和易感性中的潜在作用.

结论:

这项研究增强了对果Psa耐药性的遗传基础的理解.
已识别的QTL和候选基因为Psa耐药果品种的标记器辅助育种提供了有价值的标.

关键词:

亚克提尼迪亚阿尔古塔 (Actinidia Arguta) 是一种植物.在中国的Actinidia chinensis中.细菌性瘤病是一种细菌性瘤病.跨种类的跨种类交叉.在RNAseqqq中使用.在 ddRADAD 中使用.

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