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Updated: Jul 9, 2025

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两种神制造了现代玉米

Ning Yang^1,2,3, Yuebin Wang¹, Xiangguo Liu⁴

¹National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan 430070, China.

Science (New York, N.Y.)

|November 30, 2023

概括

现代玉米起源于古代玉米和Zea mays ssp之间的混合物. 在墨西哥的墨西哥. 这种混合物显著塑造了玉米的多样性和农学特征,澄清了它的进化历史.

科学领域:

* 植物遗传学和进化生物学
* 农业科学和作物化

背景情况:

一个世纪以来,玉米 (Zea mays) 的起源一直受到争议,现有的遗传和考古模型无法解释所有数据.
最近的研究表明,野生相亲植物Zea mays ssp. 在墨西哥的玉米进化.

研究的目的:

通过种群遗传分析阐明现代玉米的起源.
* 调查混合物对玉米多样性和农学特征变化的贡献.

主要方法:

* 玉米的种群遗传分析
在化和分散方面分析混合模式.

主要成果:

* 现代玉米起源于古代玉米和Zea mays ssp之间的混合事件. 在墨西哥的高地.
这种混合发生在玉米化开始后大约4000年.
混合物变异是个体基因多样性和农业特征的遗传基础的关键因素.

结论:

这项研究阐明了现代玉米的复杂起源,强调了与Zea mays ssp的杂交的重要性. 在墨西哥.
这些发现促使人们对美国玉米的传播机制进行新的调查.

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