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通过单管长片段识别神秘的断点,基于植入前遗传测试的全基因组测序
Lu Jiang1,2, Zhuoyao Mai3,4, Jiguang Peng1
1BGI Genomics, Shenzhen, 518083, China.
NPJ genomic medicine
|February 21, 2025
概括
单管长片段读取全基因组测序 (stLFR WGS) 在植入前遗传测试 (PGT) 中有效地识别了神秘平衡的转位,导致重复妊娠损失 (RPL) 家庭的成功分娩. 这促进了复杂染色体问题的PGT.
科学领域:
- 生殖遗传学 生殖遗传学
- 基因组测序技术 基因组测序技术
- 人类遗传学 人类遗传学
背景情况:
- 复发性流产 (RPL) 经常与神秘的染色体重组有关.
- 标准的型可能会错过微妙的转位,使PGT复杂化.
- 先进的测序对于PGT的准确诊断至关重要.
研究的目的:
- 在PGT中使用stLFR WGS识别密码平衡转位.
- 为了改善RPL的夫妇的生殖结果.
- 为了验证stLFR WGS用于精确的断点映射.
主要方法:
- 单管长片段读取全基因组测序 (stLFR WGS).
- 植入前遗传测试 (PGT) 使用低覆盖范围的WGS.
- 用G带型和桑格测序来确认断点.
主要成果:
- stLFR WGS检测到最初的型化错过了神秘的转位.
- 确定了一个7;13平衡转移和一个复杂的9;10;11转移.
- PGT 能够选择染色体正常的胚胎,从而产生健康的出生.
结论:
- stLFR WGS是一种强大的工具,用于检测PGT中的密码平衡转位.
- 准确识别重新安排可以提高RPL的PGT成功率.
- 这项技术有助于受影响夫妇的生殖决策.
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