在Cucurbita pepo L. 通过卵巢培养的双倍哈普洛伊德生产
Ana García-Pérez1,2, Malen Escánez1,2, Sandra Gil1
1Seeds for Innovation S.L., Edificio PITA, Lab 43, Carretera Sacramento s/n, 04120 Almería, Spain.
Plants (Basel, Switzerland)
|December 31, 2025
概括
这项研究开发了一种高效的妇产生成协议,用于使用Zeatin riboside (ZR) 在Cucurbita pepo中产生双倍的Haploid (DH). 优化的方法成功地从卵巢培养物中产生了平体和双体植物.
科学领域:
- 植物生物技术 植物生物技术
- 园艺科学 园艺科学
- 植物育种 植物育种
背景情况:
- 双倍的哈普洛伊德 (DH) 生产对于作物改善至关重要,但对Cucurbita物种的有效方法是有限的.
- 妇产新生,一种类型的apomixis,提供了一个潜在的途径,在Cucurbita的DH生产.
研究的目的:
- 建立一个可再生的卵巢培养系统,用于Cucurbita pepo gynogenesis.
- 评估Zeatin riboside (ZR) 作为一种有效的细胞因素用于Cucurbita中的DH生产.
主要方法:
- 查用于卵巢培养的9种具有不同细胞因素-auxin组合的媒介.
- 优化了四个基于ZR的媒体配方.
- 使用流细胞计对再生剂进行分析,以确认 ploidy 水平.
主要成果:
- 与合成卵巢相比,预合成卵巢的胚胎形成显著增加.
- E6.1介质 (1 mg·L−1 ZR + 3 mg·L−1 NAA, 30 g·L−1 糖) 产生了最高的胚胎产量 (大约. 97个胚胎/100个实验胚胎).
- 在再生体中观察到自发的染色体倍增,产生单倍体,双倍体和混合体植物.
结论:
- 泽核酸 (ZR) 是一种可行的和有效的细胞因素,用于Cucurbita的生殖和DH生产.
- 开发的卵巢培养协议为改善Cucurbita物种的DH生产提供了基础.
- 进一步的研究可以探索跨不同Cucurbita物种和培养条件的基于ZR的配方.
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