在F2交叉的内系系的基因型赋值
Saul Pierotti1, Bettina Welz2, Mireia Osuna-López3
1European Bioinformatics Institute (EMBL-EBI), European Molecular Biology Laboratory, Hinxton, Cambridge CB101SD, United Kingdom.
Bioinformatics advances
|July 30, 2024
概括
来自低通全基因组测序的基因型归因对于遗传研究至关重要. 这项研究通过分析测序覆盖率和medaka交叉中的样本大小权衡来优化归算准确度.
科学领域:
- 基因组学就是基因组学.
- 量化遗传学 量化遗传学
- 生物信息学是一种生物信息学.
背景情况:
- 杂交的近亲血统对于识别与特定表型相关的遗传位点至关重要.
- 使用低通全基因组测序的基因型归算对于缺乏广泛参考面板或SNP芯片的生物来说是有效的.
- 以前缺乏对最佳基因型归算条件的系统分析.
研究的目的:
- 系统地探索影响基因型归算表现的因素,在F2交叉的内杂梅达卡线路.
- 为了确定测序覆盖范围,样本数量和归算精度之间的最佳平衡.
- 开发一个计算管道用于归算策略的成本效益分析.
主要方法:
- 使用STITCH归算软件对F2梅达卡交叉进行分析.
- 系统地改变设计变量,包括测序覆盖范围和样本大小.
- 开发并测试了一个计算管道,以简化归算分析.
主要成果:
- 计算性能高原,根据样本大小增加每个样本的测序覆盖率.
- 确定了成本,归算准确性和样本数量之间的关键权衡.
- 开发了一个计算管道,以促进其他群体进行类似的成本效益分析.
结论:
- 通过对测序覆盖范围和样本大小的系统分析,可以实现优化基因型归算策略.
- 开发的计算管道有助于研究人员评估归算成本效益权衡.
- 该管道可适应在测试的F2结构之外分析种群.
相关概念视频
Trihybrid 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
Incomplete Dominance
22.3K
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.
22.3K
Monohybrid Crosses
229.9K
Overview
229.9K
Dihybrid Crosses
74.7K
Overview
74.7K
Law of Independent Assortment
55.4K
While Mendel’s Law of Segregation states that the two alleles for one gene are separated into different gametes, a different question of how different genes are inherited remains. For example, is the gene for tall plants inherited with the gene for green peas? Mendel asked this question by experimenting with a dihybrid cross; a cross in which both parents are homozygous for two distinct traits resulting in an F1 generation that are heterozygous for both traits.
55.4K
Law of Segregation
65.6K
When crossing pea plants, Mendel noticed that one of the parental traits would sometimes disappear in the first generation of offspring, called the F1 generation, and could reappear in the next generation (F2). He concluded that one of the traits must be dominant over the other, thereby causing masking of one trait in the F1 generation. When he crossed the F1 plants, he found that 75% of the offspring in the F2 generation had the dominant phenotype, while 25% had the recessive phenotype.
65.6K


