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中国农学通报 ›› 2024, Vol. 40 ›› Issue (6): 128-134.doi: 10.11924/j.issn.1000-6850.casb2023-0250

• 生物科学 • 上一篇    下一篇

基于ISSR标记分析连云港地区野生灵芝种质资源遗传多样性及亲缘关系

纪伟1,2(), 苏文英1, 刘晓梅1, 王一璞1, 任立凯1(), 奚小艳2, 陈克龙2   

  1. 1 连云港市农业科学院,江苏连云港 222000
    2 青海师范大学,西宁 810000
  • 收稿日期:2023-03-23 修回日期:2023-05-15 出版日期:2024-02-22 发布日期:2024-02-22
  • 通讯作者:
    任立凯,男,1981年出生,江苏铜山人,副研究员,本科,学士,主要从事菌物资源开发及利用。通信地址:222000 江苏省连云港市海州区迎宾大道西首 连云港市农业科学院,Tel:0518- 83081726,E-mail:
  • 作者简介:

    纪伟,男,1989年出生,江苏睢宁人,在读博士,研究方向:菌物资源开发利用及生态保护。通信地址:222000 江苏省连云港市海州区迎宾大道西首 连云港市农业科学院,Tel:0518-83081726,E-mail:

  • 基金资助:
    江苏现代农业产业技术体系“江苏现代农业产业技术体系连云港食用菌推广示范基地”(JATS[2022]177); 连云港市财政专项“云台山野生灵芝菌株分子鉴定及ISSR遗传多样性分析”(QNJJ2209); 省级现代农业发展“连云港市食用菌全产业链建设项目”(连农复(2023)14号); 连云港市科协软课题项目“连云港市大型药用真菌资源普查及分布地图编制”(Lkxyb23027)

Wild Ganoderma lingzhi Resources in Lianyungang Area: Genetic Diversity and Genetic Relationship Analysis Based on ISSR Markers

JI Wei1,2(), SU Wenying1, LIU Xiaomei1, WANG Yipu1, REN Likai1(), XI Xiaoyan2, CHEN Kelong2   

  1. 1 Lianyungang Academy of Agricultural Science, Lianyungang, Jiangsu 222000
    2 Qinghai Normal University, Xining 810000
  • Received:2023-03-23 Revised:2023-05-15 Published-:2024-02-22 Online:2024-02-22

摘要:

为分析连云港地区野生灵芝种质资源之间的亲缘关系和多样性水平,以连云港地区15株野生灵芝为研究对象,采用ISSR分子标记进行遗传多样性及亲缘关系分析。15株野生灵芝中扩增出多态性条带为40条,片段大小在250~2000 bp之间,平均等位基因位点1.8个,平均有效等位基因数1.2454,平均Nei's遗传多样性0.1742,平均Shannon信息指数0.2925,有效等位基因数(Ne)的变化范围为1.0000~1.6423,Nei's遗传多样性(He)的变化范围为0.1031~0.3911,Shannon信息指数(I)的变化范围为0.2235~0.5799,根据ISSR分子标记的遗传聚类图,15株灵芝相似系数范围在0.415~0.866之间,相似系数为0.63时,可以将15株野生灵芝分为四组。研究结果为连云港地区灵芝种质资源分类、保护和品种创制提供了参考依据。

关键词: 灵芝, 简单序列重复区间, 遗传多样性, 聚类分析, 亲缘关系

Abstract:

In order to analyze the genetic relationships and diversity levels of wild Ganoderma lingzhi germplasm resources in Lianyungang area, the genetic diversity and genetic relationship of 15 wild Ganoderma lingzhi in Lianyungang area were analyzed by ISSR molecular markers. The results showed that 40 polymorphic bands were amplified, the fragment size ranging from 250 to 2000 bp, the average allele number was 1.8, the average effective allele number was 1.2454, the average Nei's genetic diversity was 0.1742, and the average Shannon information index was 0.2925. The effective allele number (Ne) ranged from 1.0000 to 1.6423, the genetic diversity of Nei's (He) ranged from 0.1031 to 0.3911, and the Shannon Information index(I) ranged from 0.2235 to 0.5799. According to the genetic clustering diagram of ISSR molecular markers, the similarity coefficient of 15 Ganoderma lingzhi strains ranged from 0.415 to 0.866. When the similarity coefficient is 0.63, the 15 wild Ganoderma lingzhi strains could be divided into four groups. The results provided a reference for the classification, protection and variety creation of Ganoderma lingzhi germplasm resources in Lianyungang area.

Key words: Ganoderma lingzhi, inter-simple sequence repeat, genetic diversity, cluster analysis, genetic relationship