遗传 ›› 2024, Vol. 46 ›› Issue (10): 849-859.doi: 10.16288/j.yczz.24-150

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基于祖先重组图重建古今人类群体遗传系谱的研究进展及展望

杨青鑫1,2,3(), 王萌鸽2,3(), 刘超4(), 袁慧军2(), 何光林2,3()   

  1. 1.昆明医科大学法医学院,昆明 650500
    2.四川大学华西医院罕见病研究院,成都 610000
    3.四川大学考古科学中心,成都 610000
    4.广东省毒品实验技术中心(国家毒品实验室广东分中心),广州 510000
  • 收稿日期:2024-05-27 修回日期:2024-08-21 出版日期:2024-08-30 发布日期:2024-08-30
  • 通讯作者: 何光林,副研究员,研究方向:古基因组学、法医基因学、演化基因组学研究。E-mail: Guanglinhescu@163.com;
    刘超,中国工程院院士,研究方向:法医遗传学、法医病理学、法医微生物学及法医毒理相关研究。E-mail: liuchaogzf@163.com;
    袁慧军,教授,研究方向:聋病基因诊断与基因治疗研究;罕见病精准诊治与智能决策支持。E-mail: yuanhj301@163.com
  • 作者简介:杨青鑫,硕士研究生,专业方向:法医学。E-mail: fayiyqx@163.com
    王萌鸽,助理研究员,研究方向:古基因组学、法医基因学、演化基因组学研究。E-mail: menggewang2021@163.com
    第一联系人:

    杨青鑫和王萌鸽并列第一作者。

  • 基金资助:
    国家自然科学基金项目(82202078);国家社科基金重大项目(23&ZD203);四川大学考古科学中心项目(23SASA01);四川省科技计划项目(2024NSFSC1518)

Advancements and prospects in reconstructing the genetic genealogies of ancient and modern human populations using ancestral recombination graphs

Qingxin Yang1,2,3(), Mengge Wang2,3(), Chao Liu4(), Huijun Yuan2(), Guanglin He2,3()   

  1. 1. School of Forensic Medicine, Kunming Medical University, Kunming 650500, China
    2. Institute of Rare Diseases, West China Hospital of Sichuan University, Sichuan University, Chengdu 610000, China
    3. Center for Archaeological Science, Sichuan University, Chengdu 610000, China
    4. Anti-Drug Technology Center of Guangdong Province, Guangzhou 510000, China
  • Received:2024-05-27 Revised:2024-08-21 Published:2024-08-30 Online:2024-08-30
  • Supported by:
    National Natural Science Foundation of China(82202078);Major Project of the National Social Science Foundation of China(23&ZD203);Center for Archaeological Science of Sichuan University(23SASA01);Sichuan Science and Technology Program(2024NSFSC1518)

摘要:

随着古今人群大规模基因组资源的公布、计算生物学工具的革新及大数据挖掘相关算力的提升,基因组学领域正在经历一场革命性的变化。这些进步和变化不仅显著加深了人们对人类起源、迁徙及混合等复杂演化历程的理解,而且也揭示了这些过程对人类疾病健康状态的影响,加速了人们对人类健康和疾病遗传学基础的研究,还为挖掘人类基因组中记载的群体演化历史及疾病遗传学基础的演化轨迹提供了新的途径。祖先重组图(ancestral recombination graph, ARG)技术,通过分析全基因组中不同区域的重组事件和共祖特征,重建了基因组片段之间的演化关系。ARG 记录了所研究基因组序列分歧以来的所有共祖和重组事件,并指明了每个基因组位置的完整系谱,是基因组分析的理想数据结构。本文综述了ARG技术的理论基础及其研究进展,并探讨了其在法医基因组学、群体遗传学、演化医学、医学基因组学等多个学科领域的转化应用和发展前景,以期推动该技术在基因组学研究中的应用,进一步深化对人类基因组的理解。

关键词: 祖先重组图, 遗传系谱, 演化基因组学

Abstract:

With the release of large-scale genomic resources from ancient and modern populations, advancements in computational biology tools, and the enhancement of data mining capabilities, the field of genomics is undergoing a revolutionary transformation. These advancements and changes have not only significantly deepened our understanding of the complex evolutionary processes of human origins, migration, and admixture but have also unveiled the impact of these processes on human health and disease. They have accelerated research into the genetic basis of human health and disease and provided new avenues for uncovering the evolutionary trajectories recorded in the human genome related to population history and disease genetics. The ancestral recombination graph (ARG) reconstructs the evolutionary relationships between genomic segments by analyzing recombination events and coalescence patterns across different regions of the genome. An ARG provides a record of all coalescence and recombination events since the divergence of the sequences under study and specifies a complete genealogy at each genomic position, which is the ideal data structure for genomic analysis. Here, we review the theoretical foundations and research advancements of the ARG, and explore its translational applications and future prospects across various disciplines, including forensic genomics, population genetics, evolutionary medicine, and medical genomics. Our goal is to promote the application of this technique in genomic research, thereby deepening our understanding of the human genome.

Key words: ancestral recombination graphs, genetic genealogies, evolutionary genomics