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Genetic Screens

Genetic Screens

Genetic screens are tools used to identify genes and mutations responsible for phenotypes of interest. Genetic screens help identify individuals or a group of people at risk of developing genetic diseases and help them with early intervention, targeted therapy, and reproductive options.
Forward genetic screens
Forward or “classical” genetic screens involve creating random mutations in an organism’s DNA using radiation, mutagens, or insertion of additional bases, which...

Trihybrid Crosses

Trihybrid Crosses

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...

Background and Environment Affect Phenotype

Background and Environment Affect Phenotype

Although the genetic makeup of an organism plays a major role in determining the phenotype, there are also several environmental factors, such as temperature, oxygen availability, presence of mutagens, that can alter an organism’s phenotype.
An example of how genetic background affects phenotype can be seen in horses. The Extension gene in horses is responsible for their coat color. A wild-type gene (EE) produces black pigment in the coat, while a mutant gene (ee) produces red pigment. A...

Pedigree Analysis

Pedigree Analysis

Genetic Lingo

Genetic Lingo

Multiple Allele Traits

Multiple Allele Traits

The Concept of Multiple Allelism

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相关实验视频

Updated: Feb 26, 2026

Phage Phenomics: Physiological Approaches to Characterize Novel Viral Proteins

Phage Phenomics: Physiological Approaches to Characterize Novel Viral Proteins

Published on: June 11, 2015

快速表型模拟用于基因型表示图表的表型模拟.

Aditya Syam^1,2, Chris Adonizio^1,2, Xinzhu Wei¹

¹Department of Computational Biology, Cornell University, Ithaca, NY 14850, United States.

Bioinformatics advances

|February 25, 2026

概括

此摘要是机器生成的。

GrgPhenoSim是一个新的表型模拟器,用于基因型表示图 (GRGs). 它通过高效地模拟大型生物库数据集上的表型,实现更快,更可扩展的统计遗传学.

关键词:

生物信息学是一种生物信息学.现象型现象型是一种表现型.模拟器模拟器是一个模拟器软件软件软件软件软件统计遗传学统计遗传学

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Last Updated: Feb 26, 2026

Phage Phenomics: Physiological Approaches to Characterize Novel Viral Proteins

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Published on: June 11, 2015

Quantitative Analysis of Climbing Defects in a Drosophila Model of Neurodegenerative Disorders

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Published on: June 13, 2015

Rapid and Efficient Zebrafish Genotyping Using PCR with High-resolution Melt Analysis

Rapid and Efficient Zebrafish Genotyping Using PCR with High-resolution Melt Analysis

Published on: February 5, 2014

科学领域:

遗传学是一个遗传学.
生物信息学是一种生物信息学.
计算生物学计算生物学

背景情况:

整个基因组的多态化需要高效的代表大规模的遗传研究.
现有的基因型表示和表型模拟方法可能是计算密集的.
可扩展的统计遗传学对于分析生物库规模数据集至关重要.

研究的目的:

介绍GrgPhenoSim,一个快速的表型模拟器,用于基因型表示图 (GRGs).
为了实现有效的表型模拟生物库规模数据集的统计遗传学.
提供一个工具,促进更快的全基因组关联研究.

主要方法:

开发了GrgPhenoSim,这是一个针对GRG量身定制的表型模拟器.
实现用于标准化和定制化表型模拟的功能.
基准测试GrgPhenoSim与现有的模拟器比较,例如tstrait.

主要成果:

GrgPhenoSim展示了显著的速度改进,比tstrait.sim快几十到几百倍.
该模拟器对从数千到数十万的样本大小有效.
GrgPhenoSim支持基本的表型模拟功能和定制模拟.

结论:

GrgPhenoSim显著加速了GRG的表型模拟,促进了可扩展的统计遗传学.
该工具针对生物库规模数据集进行了优化,性能优于现有的模拟器.
GrgPhenoSim提高了全基因组关联研究和相关分析的效率.