ACTA THERIOLOGICA SINICA ›› 2025, Vol. 45 ›› Issue (3): 345-355.DOI: 10.16829/j.slxb.150924

• ORIGINAL PAPERS • Previous Articles     Next Articles

Genetic structure analysis of wild boar population in Beijing Songshan National Nature Reserve

Xiaocheng TANG1,2, Jing YANG2, Yanmin DONG3, Hongliang ZHANG3, Yanjing SHEN3, Xiaomeng WANG4, Weidong BAO1,2()   

  1. 1.National Engineering Research Center of Tree Breeding and Ecological Restoration, Beijing Forestry University, Beijing 100083, China
    2.School of Biological Science and Technology, Beijing Forestry University, Beijing 100083, China
    3.Beijing Songshan National Nature Reserve Administration, Beijing 102115, China
    4.Beijing Yongding River Leisure Forest Park Administration, Beijing 100043, China
  • Received:2024-03-05 Accepted:2024-09-13 Online:2025-05-31 Published:2025-06-03
  • Contact: Weidong BAO

北京松山国家级自然保护区野猪种群遗传结构初步分析

唐小澄1,2, 杨婧2, 董艳民3, 张洪亮3, 沈延京3, 王小萌4, 鲍伟东1,2()   

  1. 1.北京林业大学林木育种与生态修复国家工程中心,北京 100083
    2.北京林业大学生物科学与技术学院,北京 100083
    3.北京松山国家级自然保护区管理处,北京 102115
    4.北京市永定河休闲森林公园管理处,北京 100043
  • 通讯作者: 鲍伟东
  • 作者简介:唐小澄 (1997- ),女,硕士研究生,主要从事动物行为学研究.
  • 基金资助:
    北京市科技计划项目(Z181100005318004)

Abstract:

With the gradual improvement of the natural ecological environment in Beijing, the population of wild boar (Sus scrofa) continues to grow, causing local damage. Understanding the background of the wild boar population genetic structure helps formulate long-term control measures. In this study, we used non-invasive sampling and PCR amplification techniques to analyze the sex structure of the wild boar population in Beijing Songshan National Nature Reserve, and microsatellite molecular markers to analyze the genetic diversity and genetic distances to understand the future development trend of the population. The results showed that 42 individuals were identified from 88 suspected wild boar fecal samples, of which 35 were females and 7 were males, with a sex ratio of 5∶1. The analysis showed that the genetic polymorphic information content (PIC) of the population was in the range of 0.55 - 0.81, with an average of 0.71, and the population had moderate genetic diversity. An evolutionary tree was constructed based on genetic distances between microsatellite loci, and the 42 individuals showed three main branches. The results of the clustering analysis also showed that the individuals of this population were clustered according to the three genetic clades. In general, the wild boar population in the Songshan area has a certain degree of segregation in terms of genetic structure, but it has not reached the level of obvious differentiation and still belongs to the same population. In addition, the analysis of the inbreeding coefficient showed that the Songshan wild boar population was moderately inbred in general, which would have a certain inhibitory effect on population growth. This study provides basic information for understanding the genetic structure of wild boars in the study area and is an important reference for estimating the changes in population density and predicting the development of wild boar populations in this area.

Key words: Wild boar, Noninvasive sampling, Microsatellites molecular markers, Population genetic diversity, Management of protected areas

摘要:

随着北京市自然生态环境逐渐改善,野猪 (Sus scrofa) 的种群数量不断增长,造成局部危害,对野猪种群遗传结构进行监测有助于制定种群长期防控管理措施。本研究使用非损伤采样和微卫星分子标记技术,对北京松山国家级自然保护区野猪种群的性别结构、遗传多样性和遗传距离进行分析,了解种群未来发展趋势。结果表明,88份疑似野猪粪便样品鉴定出42只个体,其中35只雌性、7只雄性,雌雄性比为5∶1。种群遗传多态信息含量 (PIC) 在0.55 ~ 0.81之间,平均为 0.71,具有适中的遗传多样性。基于微卫星位点间的遗传距离构建进化树,42只个体呈现3个分支,聚类分析结果也显示出该种群个体按照3个遗传支系进行聚类的现象。总体上,松山地区的野猪群体在遗传结构方面存在一定程度的分离,但并未到达明显分化的程度,仍属于一个种群。对近交系数的分析显示,松山野猪种群总体呈现中度近交状态,将对种群发展产生一定抑制作用。本研究为了解北京地区野猪种群的遗传结构提供了基础资料,对于分析该地区野猪的种群密度变化和预测种群发展趋势有重要参考价值。

关键词: 野猪, 非损伤性取样, 微卫星分子标记, 种群遗传多样性, 保护区管理

CLC Number: