相关实验视频
Updated: Jul 12, 2026

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Screening of Tobacco Genotypes for Phytophthora nicotianae Resistance
Published on: April 15, 2022
从种子中获得的Nicotiana tabacum L.的母性单体
概括
生产Nicotiana tabacum单体是通过与非洲尼科蒂亚的授粉来简化. 这种方法产生了可行的半平分体,为传统的另一种培养技术提供了替代方案.
科学领域:
- 植物遗传学 植物遗传学
- 植物育种 植物育种
- 园艺科学 园艺科学
背景情况:
- 尼科蒂亚纳·塔巴库姆 (Nicotiana tabacum) 的单体对遗传研究和育种有价值.
- 培养是一种常见的,但有时具有挑战性的生产 haploids 的方法.
研究的目的:
- 介绍一种更简单的生产Nicotiana tabacum haploid的方法.
- 评估Nicotiana africana作为一个传粉器的有效性.
主要方法:
- 尼科蒂亚纳烟草 (Nicotiana tabacum) 与尼科蒂亚纳非洲 (Nicotiana africana) 的授粉.
- 由此产生的种子的发芽和观察幼苗的发育.
- 区分F(1) 杂交物和母细胞单质物.
主要成果:
- 观察到高种子发芽率.
- 很大一部分幼苗在尾形阶段之后存活下来.
- 成功地产生和区分了可活的F(1) 杂交物和母细胞单体.
结论:
- 尼科蒂亚纳烟草 (Nicotiana tabacum) 与尼科蒂亚纳非洲 (Nicotiana africana) 的授粉是一种有效的方法,用于产生单 haploid.
- 这种技术为尼科蒂亚纳平体生产提供了对培养的可行替代方案.
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The F1 generation plants of a trihybrid cross are heterozygous for all three traits and produce eight gametes. Upon self-fertilization, these gametes have an equal chance to...
Some of Mendel’s crosses examined three pairs of contrasting characteristics. Such a cross is called a trihybrid cross. A trihybrid cross is a combination of three individual monohybrid crosses. For example, plant height (tall vs. short), seed shape (round vs. wrinkled), and seed color (yellow vs. green).
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