在整个外体序列分析过程中对外体区域新一组微型的选进行样本身份测试和父权测试
Yu Tan1,2, Huan Tian1,2, Yuanyuan Xiao1,2
1Department of Medical Genetics, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, China.
International journal of legal medicine
|September 26, 2024
概括
新的微型 (MHs) 对于整个外体序列 (WES) 样本跟踪和亲子检测是有效的. 这些遗传标记物具有很高的辨别能力,累积概率超过0.999999,确保准确的个体识别.
科学领域:
- 遗传学 遗传学是一种遗传学.
- 法医科学 法医科学 法医科学
- 分子生物学分子生物学
背景情况:
- 整体外基因组测序 (WES) 对于临床诊断至关重要,需要可靠的样本身份和父权测试.
- 现有的遗传标记对这些关键的诊断前分析有局限性.
- 微型 (MHs) 由于高多态性和适合WES而具有潜力.
研究的目的:
- 识别和评估异构地区的新型多态微型 (MHs).
- 评估这些MHs在临床WES工作流程中的样本跟踪和父权测试中的有用性.
- 为了确定MHS适合其他遗传分析,如祖先推断.
主要方法:
- 在异构区域内选多态微型.
- 使用诸如歧视能力 (PD) 和排斥概率 (PE) 等指标来评估标记性能.
- 累计歧视力 (CPD) 和累计排斥概率 (CPE) 的计算.
主要成果:
- 一组多态MHs被确定为个体PD范围从0.2682到0.8878和PE从0.0178到0.4583.
- 累计的性能 (CPD和CPE) 超过0.999999,证实了对父亲测试和鉴定的高准确性.
- 对于DNA混合分析和生物地理祖先推断,MHS的价值有限,有效的基因数量和信息性较低.
结论:
- 鉴定到的微型类型对于父亲测试和WES中个体识别非常有价值.
- 这些MH显著提高了临床遗传分析期间样本跟踪的可靠性.
- 它们的实用性仅限于复杂的应用,如DNA混合分析或祖先推断.
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