GPOSYSH:使用混合方法对Oryza sativa的产量和亚种群进行基因组预测
Kiranmai Bejjam1, Umang Sujeet Basuthkar2
1Department of CSE, Keshav Memorial Institute of Technology, Narayanguda, India.
Recent advances in food, nutrition & agriculture
|February 16, 2024
概括
这项研究引入了一种混合方法,将遗传方法和机器学习结合起来,以准确预测作物特征,如产量和高度. 该方法通过有效地捕捉精英基因型发展的基因型-表型关系来增强作物育种.
科学领域:
- 基因组学就是基因组学.
- 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:
- 准确预测育种价值对于开发具有精英基因型的作物至关重要.
- 现有的研究往往单独关注遗传或机器学习方法.
- 这项研究实施了一种混合方法,将遗传学和机器学习模型结合起来.
研究的目的:
- 调查和预测一个基因型中身高和产量的表型特征.
- 准确预测 (Oryza sativa) 的表型特征和亚种群.
- 通过有效捕捉基因型-表型关系来增强作物育种.
主要方法:
- 一种两级分类方法,用于基因组预测大米产量.
- 生物序列的分类和使用UPGMA算法在家族遗传树上的聚类.
- 使用随机森林和K-近邻机器学习技术预测基因组估计繁殖值 (GEBV).
主要成果:
- 在预测大米亚群中的GEBV时,获得了85-95%的准确性.
- 与现有文献相比,证明了93%的准确性.
- 成功捕获了基因型-表型关系.
结论:
- 拟议的混合方法克服了传统育种方法的局限性.
- 通过改善精英基因型的预测,有效地提高了作物育种.
- 在作物改进计划中为基因组预测提供了强大的框架.
相关概念视频
Hybrid Zones
17.0K
Hybrid zones are narrow regions where two closely related species interact, mate, and produce hybrids. Relative to either parent species, hybrids may possess distinct phenotypic or genetic differences that impact their survival and reproductive success. The genetic variances introduced by hybridization influence species diversity and speciation processes within the hybrid zone.
17.0K
Trihybrid Crosses
23.3K
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...
23.3K
Multiple Regression
3.0K
Multiple regression assesses a linear relationship between one response or dependent variable and two or more independent variables. It has many practical applications.
Farmers can use multiple regression to determine the crop yield based on more than one factor, such as water availability, fertilizer, soil properties, etc. Here, the crop yield is the response or dependent variable as it depends on the other independent variables. The analysis requires the construction of a scatter plot...
Farmers can use multiple regression to determine the crop yield based on more than one factor, such as water availability, fertilizer, soil properties, etc. Here, the crop yield is the response or dependent variable as it depends on the other independent variables. The analysis requires the construction of a scatter plot...
3.0K
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
Chi-square Analysis
38.2K
The chi-square test is a statistical hypothesis test. It is used to check whether there is a significant difference between an expected value and an observed value. In the context of genetics, it enables us to either accept or reject a hypothesis, based on how much the observed values deviate from the expected values.
The chi-square test was developed by Pearson in 1990.
The first step of performing a Chi-square analysis is to establish a null hypothesis, which assumes that there is no real...
The chi-square test was developed by Pearson in 1990.
The first step of performing a Chi-square analysis is to establish a null hypothesis, which assumes that there is no real...
38.2K
Monohybrid Crosses
230.1K
Overview
230.1K


