在Mucuna pruriens (L.) DC中重要农学特征的关联映射
Patrush Lepcha1, Mahesh Shekhar2, Leelambika Murugesan2
1Department of Botany, Sikkim University, P. O, Tadong, Sikkim, Gangtok, 737102, India.
Botanical studies
|August 19, 2024
概括
这项研究在Mucuna pruriens中确定了15种标记特征关联 (MTA),有助于标记辅助育种以改善作物. 这些发现为增强这种重要的豆类提供了宝贵的资源.
科学领域:
- 农业科学 农业科学
- 遗传学 是一个遗传学.
- 生物技术是生物技术.
背景情况:
- Mucuna pruriens是一种热带豆类,具有蛋白质,药物和土壤改善的潜力.
- 像Mucuna pruriens这样的未充分利用的作物需要现代的育种资源来增强种植.
- 标记-特征关联 (MTA) 对于标记辅助育种和作物改进至关重要.
研究的目的:
- 在Mucuna pruriens中确定16种表型特征的标记特征关联 (MTA).
- 为了促进Mucuna pruriens的标记辅助繁殖和遗传改进.
- 在Mucuna pruriens中确定候选基因的基础.
主要方法:
- 描述了两年内70个Mucuna pruriens的加入情况.
- 通过使用66种基因微卫星标记,对16种表型特征进行了关联分析.
- 使用混合线性模型识别标记-特征关联.
主要成果:
- 在生殖质收集中检测到显著的表型和遗传多样性.
- 对9个特征确定了15个MTA,由10个SSR标志物解释,表型变异解释 (PVE) 从14.7%到31.1%.
- 发现许多测试的特征具有很高的遗传性,广义的遗传性从42.86%到99.93%不等.
结论:
- 15个已识别的MTA为Mucuna pruriens的作物改善提供了强大的资源.
- 这项研究是第一个报告Mucuna pruriens中协会映射的研究.
- 预计结果将有助于标记器辅助育种和在这种豆类中发现候选基因.
相关概念视频
02:16Light Acquisition
8.4K
In order to produce glucose, plants need to capture sufficient light energy. Many modern plants have evolved leaves specialized for light acquisition. Leaves can be only millimeters in width or tens of meters wide, depending on the environment. Due to competition for sunlight, evolution has driven the evolution of increasingly larger leaves and taller plants, to avoid shading by their neighbors with contaminant elaboration of root architecture and mechanisms to transport water and nutrients.
8.4K
01:20Monohybrid Crosses
229.9K
Overview
229.9K
01:18Dihybrid Crosses
74.7K
Overview
74.7K
01:59Plant 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
02:27Trihybrid Crosses
23.2K
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...
23.2K
02:35Key Elements for Plant Nutrition
18.7K
Like all living organisms, plants require organic and inorganic nutrients to survive, reproduce, grow and maintain homeostasis. To identify nutrients that are essential for plant functioning, researchers have leveraged a technique called hydroponics. In hydroponic culture systems, plants are grown—without soil—in water-based solutions containing nutrients. At least 17 nutrients have been identified as essential elements required by plants. Plants acquire these elements from the...
18.7K