浙江农业学报 ›› 2024, Vol. 36 ›› Issue (1): 84-93.DOI: 10.3969/j.issn.1004-1524.20221149

• 园艺科学 • 上一篇    下一篇

基于大球盖菇基因组的SSR分子标记开发及指纹数据库应用

李雪松1,2(), 孙达锋1,2, 刘绍雄2, 张俊波1, 岳万松1, 李建英1, 华蓉2,*()   

  1. 1.中华全国供销合作总社昆明食用菌研究所,云南 昆明 650221
    2.云南省食用菌产业发展研究院,云南 昆明, 650221
  • 收稿日期:2022-08-05 出版日期:2024-01-25 发布日期:2024-02-18
  • 作者简介:李雪松(1993—),男,云南峨山人,硕士,助理研究员,主要从事食药用菌驯化、遗传育种研究。E-mail: lixuesong1@qq.com
  • 通讯作者: * 华蓉,E-mail: 626300629@qq.com
  • 基金资助:
    云南省科技人才与平台计划(202205AD160042);云南省乡村振兴科技专项(202204BP090012);云南省重大科技专项计划(202002AE320003)

Development of SSR molecular markers and application of fingerprint database based on whole genome of Stropharia rugosoannulata

LI Xuesong1,2(), SUN Dafeng1,2, LIU Shaoxiong2, ZHANG Junbo1, YUE Wansong1, LI Jianying1, HUA Rong2,*()   

  1. 1. Kunming Edible Fungi Institute of All China Federation of Supply and Marketing Cooperatives, Kunming 650221, China
    2. Yunnan Edible Fungi Industry Development Research Institute, Kunming 650221, China
  • Received:2022-08-05 Online:2024-01-25 Published:2024-02-18

摘要:

以13个大球盖菇菌株及其已公布的基因组为试材,采用生物信息学和试验验证相结合的方法,研究了大球盖菇基因组上的SSR类型及分布,设计了100对SSR引物开展试验验证,以期为大球盖菇的种质资源鉴定、品种选育、分子标记辅助育种等研究提供参考依据。结果表明:总计检索到6种SSR类型的2 124条序列,其中主要以三核苷酸类型为主,共计704,占SSR总数的33.15%;五、六碱基重复类型较多,但总和只占全部SSR数量的14.59%。由验证试验获得16对引物,其中引物DQGSSR020、DQGSSR031、DQGSSR077的多态性较高、特异性好、无杂峰、荧光亮度高、区分度好。同时,基于16对SSR引物进行大球盖菇DNA指纹编码构建,获得了13个大球盖菇菌株的32位数分子指纹数据库编码。

关键词: 大球盖菇, 基因组, SSR分子标记开发

Abstract:

Based on experimental validation and bioinformatics methods, SSR analysis result were exploited from the genomic of Stropharia rugosoannulata and 13 strains. In the meantime, 100 SSR were selected for primer design and experimental verification. In order to provide a theoretical basis for the germplasm resources identification, variety selection and molecular marker-assisted breeding of S. rugosoannulata. The results showed that a total of 2 124 sequences of 6 SSR types were retrieved. The main type of trinucleotide (P3) was 704, accounting for 33.15% of the total SSR number. Pentanucleotide and hexanucleotide repeat types were more, the total number accounted for 14.59% of the total SSR number. 16 pairs of primers were obtained by verification test, three primers with high pair property, repeatability and specificity were obtained from the validation experiment, which were DQGSSR020, DQGSSR031 and DQGSSR077. At the same time, the DNA fingerprint coding of 16 pairs of primers was constructed and the 32-digit molecular fingerprint database codes of 13 S. rugosoannulata strains were obtained.

Key words: Stropharia rugosoannulata, genome, SSR molecular markers development

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