全基因组关联研究作为解剖豆类竞争性特征的强大工具
Pusarla Susmitha1, Pawan Kumar2, Pankaj Yadav3
1Regional Agricultural Research Station, Acharya N.G. Ranga Agricultural University, Andhra Pradesh, India.
Frontiers in plant science
|August 30, 2023
概括
全基因组关联研究 (GWAS) 和机器学习提高了豆类繁殖的气候适应性. 这些方法可以识别高蛋白质含量的遗传标记,这对于满足全球植物性蛋白质需求至关重要.
科学领域:
- 农业遗传学 农业遗传学
- 植物育种 植物育种
- 生物信息学是一种生物信息学.
背景情况:
- 豆类是植物性蛋白质的重要来源,对人类营养至关重要.
- 气候变化对保持豆类蛋白质含量和产量构成重大威胁.
- 全球对植物性蛋白质的需求不断增加,需要先进的育种策略.
研究的目的:
- 审查全基因组关联研究 (GWAS) 在豆类育种中对营养特征的应用.
- 探索机器学习在克服GWAS挑战中的作用,特别是维度缩小.
- 讨论GWAS标记物用于基因组选择 (GS) 和育种价值的预测的利用.
主要方法:
- 全基因组关联研究 (GWAS) 用于识别标记特征关联 (MTA).
- 机器学习技术用于减少GWAS的维度.
- 基因组选择 (GS) 模型包括回归最佳线性无偏预测 (rrBLUP),基因组最佳线性无偏预测器 (gBLUP),贝叶斯方法和随机森林 (RF).
- 利用多样化的生殖质面板和各种种群结构 (例如,MAGIC,NAM) 进行关联映射.
主要成果:
- 结合机器学习的GWAS提供了强大的工具来剖析复杂的特征,如豆类中的蛋白质含量.
- 高通量基因型和现象学使得大量基因组数据集的探索能够用于特征发现.
- 可以使用各种统计模型来准确预测基因组估计繁殖值 (GEBV).
结论:
- 在不断变化的环境条件下,先进的基因组和计算方法对于改善豆类营养质量至关重要.
- 优化GWAS选择策略,种群规模和表型精度是成功种植豆类的关键.
- 这篇综述强调了精英育种线和复杂的统计方法分析豆类竞争特征的潜力.
更多相关视频
10:58Plant Promoter Analysis: Identification and Characterization of Root Nodule Specific Promoter in the Common Bean
Published on: December 23, 2017
12.7K
08:27Large-Scale Multi-Omics Genome-Wide Association Studies Mo-GWAS: Guidelines for Sample Preparation and Normalization
Published on: July 27, 2021
3.7K
相关概念视频
Dihybrid Crosses
75.1K
Overview
75.1K
Genome-wide Association Studies-GWAS
13.6K
Genome-wide association studies or GWAS are used to identify whether common SNPs are associated with certain diseases. Suppose specific SNPs are more frequently observed in individuals with a particular disease than those without the disease. In that case, those SNPs are said to be associated with the disease. Chi-square analysis is performed to check the probability of the allele likely to be associated with the disease.
GWAS does not require the identification of the target gene involved in...
GWAS does not require the identification of the target gene involved in...
13.6K
Trihybrid 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
Monohybrid Crosses
230.4K
Overview
230.4K
