相关实验视频

Updated: Sep 19, 2025

Rapid Analysis and Exploration of Fluorescence Microscopy Images

Rapid Analysis and Exploration of Fluorescence Microscopy Images

Published on: March 19, 2014

Pedixplorer:一个生物导体包,以简化谱系设计和可视化

Louis Le Nézet¹, Jason Sinnwell², Anna Letko³

¹Univ Rennes, CNRS, IGDR (Institut de Génétique et Développement de Rennes) - UMR6290, Rennes 35000, France.

Bioinformatics (Oxford, England)

|June 3, 2025

概括

Pedixplorer 是一个新的 R 包,它改进了复杂的遗传血统的亲属关系分析. 它为大型数据集提供了增强的功能,并为研究人员和非R用户提供了用户友好的界面.

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:

亲属关系分析对于遗传研究至关重要,包括链接研究和种群遗传学.
像 kinship2 包这样的现有工具需要更新,以处理大型,复杂的血统,并具有诸如内生循环等功能.
需要灵活,用户友好的软件来管理和分析复杂的血统数据,特别是在动物育种等领域.

研究的目的:

介绍Pedixplorer,一个新的生物导体包,旨在推进亲属关系分析.
为管理和可视化大型,复杂的血统提供增强的功能,包括具有近亲繁殖循环的血统.
为R和非R用户提供一个用户友好的界面,包括Shiny应用程序.

主要方法:

在生物导体标准和现代编程实践的基础上开发Pedixplorer套件.
实现一个S4 Pedigree对象,以有效地表示复杂的血统.
创建用于自动谱系查询,过和修剪的新功能,以及用于改进可视化定制的重写图形功能.
开发了一个全面的Shiny应用程序,用于可访问的血统创建,过和定制.

主要成果:

Pedixplorer提供了一个S4 Pedigree对象,用于高效地处理复杂的血统.
新功能允许对大型谱系进行自动查询,过和修剪.
重写的图形函数增强了谱系可视化定制.
一个用户友好的Shiny应用程序可用于本地使用和通过专门的网站,使非R用户能够管理血统.

结论:

Pedixplorer为亲属关系分析提供了现代,灵活和用户友好的解决方案,特别是对于大型和复杂的血统.
该套件增强了现有的功能,并为高效的血统数据管理和可视化提供了新的工具.
集成的Shiny应用程序扩大了研究人员和不同程度的R能力的用户的可访问性.

更多相关视频

Navigating MARRVEL, a Web-Based Tool that Integrates Human Genomics and Model Organism Genetics Information

Navigating MARRVEL, a Web-Based Tool that Integrates Human Genomics and Model Organism Genetics Information

Published on: August 15, 2019

Amplification of Near Full-length HIV-1 Proviruses for Next-Generation Sequencing

Amplification of Near Full-length HIV-1 Proviruses for Next-Generation Sequencing

Published on: October 16, 2018

相关概念视频

Pedigree Analysis

Pedigree Analysis

Incomplete Dominance

Incomplete Dominance

Gregor Mendel's work (1822 - 1884) was primarily focused on pea plants. Through his initial experiments, he determined that every gene in a diploid cell has two variants called alleles inherited from each parent. He suggested that amongst these two alleles, one allele is dominant in character and the other recessive. The combination of alleles determines the phenotype of a gene in an organism.

Punnett Squares

Punnett Squares

X-linked Traits

X-linked Traits

In most mammalian species, females have two X sex chromosomes and males have an X and Y. As a result, mutations on the X chromosome in females may be masked by the presence of a normal allele on the second X. In contrast, a mutation on the X chromosome in males more often causes observable biological defects, as there is no normal X to compensate. Trait variations arising from mutations on the X chromosome are called “X-linked”.

Pleiotropy

Pleiotropy

Pleiotropy is the phenomenon in which a single gene impacts multiple, seemingly unrelated phenotypic traits. For example, defects in the SOX10 gene cause Waardenburg Syndrome Type 4, or WS4, which can cause defects in pigmentation, hearing impairments, and an absence of intestinal contractions necessary for elimination. This diversity of phenotypes results from the expression pattern of SOX10 in early embryonic and fetal development. SOX10 is found in neural crest cells that form melanocytes,...

Polygenic Traits

Polygenic Traits

When more than one gene is responsible for a given phenotype, the trait is considered polygenic. Human height is a polygenic trait. Studies have uncovered hundreds of loci that influence height, and there are believed to be many more. Due to the high number of genes involved, as well as environmental and nutritional factors, height varies significantly within a given population. The distribution of height forms a bell-shaped curve, with relatively few individuals in the population at the...