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在Cucumis sativus-C. hystrix入侵线IL52中,对与卵巢和水果相关的特征进行QTL映射

Yuhui Wang¹, Yu Fang¹, Shixiong Ning¹

¹State Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, College of Horticulture, Nanjing Agriculture University, Nanjing 210095, China.

|June 28, 2023

概括

黄瓜内进线IL52,从野生亲戚繁殖,显示出对疾病的抵抗力. 通过QTL映射,确定了27个卵巢和果实特征的位置,包括影响果实大小的4号染色体上的主要位置.

科学领域:

植物遗传学植物遗传学
提高作物质量提高作物质量
园艺科学园艺科学

背景情况:

从 *Cucumis sativus* 和 *C. hystrix* 的跨物种杂交中获得的内进线IL52表现出对疾病的抵抗力.
IL52具有有价值的特征,但其卵巢和果子的特征仍未得到充分探索.

研究的目的:

在IL52.52中对11个卵巢,果实和开花时间特征进行定量特征位置 (QTL) 映射.
为了确定控制这些特征的遗传位置,并调查潜在的性质.

主要方法:

使用了来自CCMC x IL52交叉的155F7:8复合同血统 (RIL) 种群.
进行了QTL分析,绘制了与11个不同的表型特征相关的遗传位置.

主要成果:

在七个染色体中检测到27个QTL,解释了3.61%43.98%的表型变异.
在4号染色体上发现了一种主要效应的QTL, *qOHN4.1*,用于卵巢子部宽度,局部位于一个114kb区域,有13个候选基因.
观察到 * qOHN4.1 * 与 QTL 共同定位在 * FS4.1 * 共识 QTL 中的卵巢长度,成熟果实长度和果子长度,这表明类.

结论:

控制黄瓜卵巢和水果特征的遗传位置已通过QTL映射确定.
4号染色体上的一个主要的QTL,*qOHN4.1*,显著影响了多种与水果相关的特征,这表明潜在的类效应对育种计划至关重要.

关键词:

在 QTL 映射中使用 QTL 地图.黄瓜黄瓜的使用方法果实大小果实大小果实大小内进线是一个内进线.卵巢催潘子子卵巢的大小卵巢大小

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