BrKCS6突变给中国白菜带来了明亮的光泽表型
Gengxing Song1, Shiyao Dong1, Chuanhong Liu1
1College of Horticulture, Shenyang Agricultural University, Shenyang, 110866, People's Republic of China.
TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik
|September 30, 2023
概括
研究人员通过克隆BrKCS6基因在中国白菜中发现了光泽绿色的特征. 这个基因,这个基因.
科学领域:
- 植物遗传学 植物遗传学
- 分子生物学分子生物学
- 农业科学 农业科学
背景情况:
- 叶菜中的光泽绿色外观是一种可取的商品特征.
- 这种特征主要是由于没有表皮状晶体.
- 了解这种特性的遗传基础对于作物改进至关重要.
研究的目的:
- 为了识别和克隆负责中国白菜绿光泽外观的基因.
- 描述光泽特征背后的分子机制.
- 在育种计划中探索已识别的基因的潜力.
主要方法:
- 使用乙基甲硫酸盐 (EMS) 的突变发生.
- 突变查和遗传分析.
- 使用MutMap和竞争性等位基因特定PCR (KASP) 的基因克隆.
- 分子表征包括SNP分析和qRT-PCR.
主要成果:
- 两种光泽突变,WDM9和WDM10,被确定并由一个衰退的核基因控制.
- 编码3 - 基酸-CoA合成酶的BrKCS6被确定为因果基因.
- BrKCS6中的特定SNP改变了蛋白质结构,并显著减少了基因表达.
- 与BrKCS6功能相关的下游基因在突变者中也被下调.
结论:
- 中国白菜的光泽绿色特征是由于BrKCS6基因的突变造成的.
- BrKCS6在表皮形成中起着至关重要的作用.
- 克隆BrKCS6为提高中国白菜育种的商品质量提供了宝贵的遗传资源.
相关概念视频
00:49Complementation Tests
5.0K
A complementation test is a simple cross to identify whether the two mutations are located on the same gene or different genes. It was first performed by Edward Lewis in the 1940s while working on fruit flies. He developed the test to identify the location and arrangement of different mutations on chromosomes.
Organisms heterozygous for different mutations are crossed pairwise in all combinations. If present on different genes, the mutations can complement each other by providing the missing...
Organisms heterozygous for different mutations are crossed pairwise in all combinations. If present on different genes, the mutations can complement each other by providing the missing...
5.0K
01:20Monohybrid Crosses
230.3K
Overview
230.3K
02:27Trihybrid Crosses
23.4K
Trihybrid Crosses
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).
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...
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).
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...
23.4K
01:18Dihybrid Crosses
75.1K
Overview
75.1K