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创造和研究 (Triticum dicoccum) ×三杂交的混合物

O G Silkova¹, Y N Ivanova¹, P I Stepochkin²

¹Institute of Cytology and Genetics of the Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia.

Vavilovskii zhurnal genetiki i selektsii

|July 21, 2023

概括

这项研究通过将麦 (Triticum dicoccum) 与六倍体麦交叉开发了新的春季麦 (× Triticosecale Wittmack) 系列. 一些线条显示了谷物质量的改善,而另一些线条则为未来的作物开发提供了高产量潜力.

科学领域:

植物遗传学和育种.
农业学是一种农业学.
农作物科学农作物科学

背景情况:

三 (× Triticosecale Wittmack) 是一个有价值的保险作物,用于稳定的谷物收获.
对于不适合冬季种植的地区来说,春季三叶草品种至关重要.
增强具有多样性特征的基因库对于开发高产,高品质的三角来说至关重要.

研究的目的:

创建和研究涉及麦 (Triticum dicoccum) 的二次六倍体三杂交物.
为了确定经济上有价值的特征的捐赠者,用于春季三种繁殖.
分析杂交代中的中性染色体行为和植物生产力.

主要方法:

从Triticum dicoccum和hexaploid triticale之间的交叉中产生六合状三角形杂交.
基因组在位杂交用于染色介质染色体.
在F4-F8世代中分析植物生产率要素和谷物特征.

主要成果:

选择的DT 4/168和DT 5/176生产线的谷物质量有所提高 (超过750g/l),但生产率较低.
线路DT6及其衍生品DT 6/186显示出高谷物生产率 (高达822g/m2),但谷物质量降低.
对DT 6/186的微生物分析证实了完整的麦基因组和两种小麦基因组 (AABB),具有稳定的麦染色体配对,但小麦无倍化.

结论:

六倍体三种形式DT 4/168和DT 5/176是食品级三种植中高粒度和质量特征的宝贵来源.
DT 6/186是进一步育种的有希望的候选品种,以开发出高产的三种.
这项研究强调了Triticum dicoccum侵入的潜力,可以增强triticale的遗传多样性和繁殖潜力.

关键词:

这就是Triticum dicoccum.基因组在现场杂交的基因组.介质变化 (meiosis) 是一种变质的过程.繁殖前的形式.生产力特征的生产力特征三等级的三等级的三等级.广泛的混合物广泛的混合物

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