在韩国大米采集中利用维生素E多样性的遗传变异和哈普类型
Aueangporn Somsri1, Sang-Ho Chu1, Bhagwat Nawade1
1Department of Plant Resources, College of Industrial Sciences, Kongju National University, Yesan 32439, Republic of Korea.
Antioxidants (Basel, Switzerland)
|February 24, 2024
概括
玛-托科菲罗尔甲基转移酶 (γ-TMT) 基因中的遗传变异会影响米的维生素E含量. 特定的单体类型会影响托科菲罗和托科特里诺的水平,为营养育种提供了洞察力.
科学领域:
- 植物遗传学 植物遗传学
- 营养生物化学 营养生物化学
- 农业科学 农业科学
背景情况:
- 玛-托科法醇甲基转移酶 (γ-TMT) 对于大米中维生素E的生物合成至关重要.
- 托科克罗曼醇,包括托科菲醇和托科特里昂醇,对于大米的营养质量至关重要.
- 了解γ-TMT遗传变异是改善大米营养特征的关键.
研究的目的:
- 分析韩国大米中 γ-TMT 基因内的遗传变异.
- 调查g-TMT哈普洛类型与维生素E异构体概况之间的关联.
- 通过育种来确定提高大米营养质量的遗传资源.
主要方法:
- 在 475 个韩国大米加入中测序了 γ-TMT 基因.
- 基因变异的识别和表征 (SNP 和 InDels).
- 哈普洛型分析和关联研究与维生素E异构体分析.
主要成果:
- 在γ-TMT中发现了177种遗传变异,包括两个功能性SNP.
- 在印加群中观察到的平衡选择特征.
- 确定了27种不同的单元类型,在栽培和野生大米中分布不同.
- 特定的单元类型 (例如,Hap_2) 与 japonica 和 indica 米中的α-托科菲罗尔,γ-托科菲罗尔及其托科特里诺尔对应物水平的变化显著相关.
结论:
- 在韩国大米中,g-TMT的遗传场景是多样化的.
- 功能变异和特定的单元类型显著调节维生素E的组成.
- 研究结果提供了有价值的遗传标记,用于在米育种计划中的标记辅助选择,以提高营养为目标.
相关概念视频
Plant Breeding and Biotechnology
18.9K
Crop cultivation has a long history in human civilization, with records showing the cultivation of cereal plants beginning at around 8000 BC. This early plant breeding was developed primarily to provide a steady supply of food.
18.9K
Transgenic Plants
7.2K
Recombinant DNA technology called transgenesis is often used to add a foreign gene or remove a detrimental gene from an organism. Such genetically modified organisms are called transgenic organisms.
The first-ever transgenic plant was a tobacco plant developed in 1983 that showed resistance against the tobacco mosaic virus. Since then, many transgenic plants have been developed and commercialized for improving the agricultural, ornamental, and horticultural value of a crop plant. Transgenic...
The first-ever transgenic plant was a tobacco plant developed in 1983 that showed resistance against the tobacco mosaic virus. Since then, many transgenic plants have been developed and commercialized for improving the agricultural, ornamental, and horticultural value of a crop plant. Transgenic...
7.2K


