在Litopenaeus vannamei中优化全基因组复序深度,以实现高通量SNP基因定型
Pengfei Lin1,2,3, Yang Yu1,2,3, Zhenning Bao1,2,3
1Key Laboratory of Breeding Biotechnology and Sustainable Aquaculture (CAS), Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China.
International journal of molecular sciences
|November 27, 2024
概括
优化全基因组复序深度对于水产养殖中精确的遗传研究至关重要. 对于综合性研究,建议使用10×的深度,而6×为人口分析提供了具有成本效益的平衡.
科学领域:
- 基因组学就是基因组学.
- 水产养殖是水产养殖的一种方式.
- 生物信息学是一种生物信息学.
背景情况:
- 全基因组再测序 (WGR) 在遗传研究中至关重要,但对数据质量和水产养殖物种变异检测的最佳测序深度尚未确定.
- 鱼 (L. vannamei) 是一个重要的水产养殖物种,使其成为本研究的合适模型.
研究的目的:
- 研究不同测序深度对单核酸多态 (SNP) 检测和L. vannamei.的基因定型精度的影响.
- 确定水产养殖物种WGR研究的最佳测序深度,平衡数据质量和成本效益.
主要方法:
- 使用Illumina NovaSeq.对31个L. vannamei样本进行全基因组再测序.
- 数据向下采样以模拟从0.5×到20×的测序深度.
- 对不同深度的SNP识别率和基因型精度的分析.
主要成果:
- 随着深度达到10×,SNP识别显著增加,10×深度捕获了20×发现的SNP的69%~.
- 基因型准确性在6×深度达到~0.90.
- 异卵性变体被误认为同卵性是基因型错误的主要原因.
结论:
- 强大的全基因组研究和L. vannamei.的遗传映射建议使用10×的测序深度.
- 6×的测序深度为人口结构分析提供了具有成本效益的选择.
- 选择适当的测序深度对于可靠的变异检测和水产养殖研究中高质量的基因组数据至关重要.
相关概念视频
Single Nucleotide Polymorphisms-SNPs
A single nucleotide polymorphism or SNP is a single nucleotide variation at a specific genomic position in a large population. It is the most prevalent type of sequence variation found in the human genome. Point mutations that occur in more than 1% of the population qualify as SNPs. These are present once every 1000 nucleotides on an average in the human genome. Replacement of a purine with another purine (A/G) or a pyrimidine with another pyrimidine (C/T) is known as a transition. In contrast,...
Comparing Copy Number Variations and SNPs
Sequencing of the human genome has opened up several best-kept secrets of the genome. Scientists have identified thousands of genome variations that exist within a population. These variations can be a single nucleotide or a larger chromosomal variation.
Copy number variations or CNVs are the structural variations that cover more than 1kb of DNA sequence. The single nucleotide polymorphism (SNP), on the other hand, is a single nucleotide change or a point mutation that is found in more than 1%...
Copy number variations or CNVs are the structural variations that cover more than 1kb of DNA sequence. The single nucleotide polymorphism (SNP), on the other hand, is a single nucleotide change or a point mutation that is found in more than 1%...


