华北农学报 ›› 2022, Vol. 37 ›› Issue (1): 18-26. doi: 10.7668/hbnxb.20192459

所属专题: 油料作物 生物技术

• 作物遗传育种·种质资源·生物技术 • 上一篇    下一篇

大豆长片段插入/缺失标记的开发与应用

李曼1,2, 史晓蕾2, 邸锐2, 刘志芳3, 孟庆民2, 付才4, 杨春燕2, 王冬梅1, 张孟臣2, 张洁1, 闫龙2   

  1. 1.华北作物改良与调控国家重点实验室,河北省植物生理与分子病理学重点实验室,河北农业大学 生命科学学院,河北 保定 071001
    2.河北省农林科学院 粮油作物研究所,国家大豆改良中心石家庄分中心,农业农村部黄淮海大豆生物学与遗传育种重点实验室,河北省作物遗传育种实验室,河北 石家庄 050035
    3.河北省种子总站,河北 石家庄 050031
    4.河北省农林科学院 遗传生理研究所,河北 石家庄 050051
  • 收稿日期:2021-06-23 出版日期:2022-02-28
  • 作者简介:
    作者简介:李 曼(1994—),女,河北唐山人,在读博士,主要从事分子育种研究。李曼、史晓蕾为同等贡献作者。
  • 基金资助:
    河北省农林科学院创新工程项目(2019-4-3-2)

Development and Application of Large-size Insertion/Deletion Markers in Soybean

LI Man1,2, SHI Xiaolei2, DI Rui2, LIU Zhifang3, MENG Qingmin2, FU Cai4, YANG Chunyan2, WANG Dongmei1, ZHANG Mengchen2, ZHANG Jie1, YAN Long2   

  1. 1. State Key Laboratory of North China Crop Improvement and Regulation,Key Laboratory of Hebei Province for Plant Physiology and Molecular Pathology,College of Life Sciences,Hebei Agricultural University,Baoding 071001,China
    2. Institute of Cereal and Oil Crops,Hebei Academy of Agriculture and Forestry Sciences,Shijiazhuang Branch Center of National Center for Soybean Improvement, Huang-Huai-Hai Key Laboratory of Biology and Genetic Improvement of Soybean,Ministry of Agriculture and Rural Affairs,Laboratory of Crop Genetics and Breeding in Hebei,Shijiazhuang 050035,China
    3. Hebei Seed Station,Shijiazhuang 050031,China
    4. Institute of Genetics and Physiology, Hebei Academy of Agriculture and Forestry Sciences,Shijiazhuang 050051,China
  • Received:2021-06-23 Published:2022-02-28

摘要:

为了开发稳定可靠、操作简便的大豆分子标记,以12份地理来源不同的大豆种质资源为材料,通过基因组10倍深度重测序开发长片段插入/缺失(InDel)标记,并应用2018年黄淮海大豆多点鉴定96份参试品系DNA指纹图谱构建。结果表明,在参试材料中,共检测到插入/缺失片段长度大于20 bp的InDel标记66 561个,平均每条染色体InDel标记的数量为3 262个;位于内含子的InDel占比12.35%,位于基因上游序列和下游序列的InDel占比分别为25.83%,20.44%,位于基因间隔区的InDel占比34.39%,位于外显子的InDel占比0.19%,位于5'-UTR和3'-UTR的InDel占比分别为0.93%和1.51%;片段长度介于20~40 bp的InDel数量为42 453个,41~60 bp为13 044个,61~80 bp为5 034个,81~100 bp为2 285个,大于100 bp为2 413个;从检测到的66 561个InDel位点中,根据插入/缺失片段长度,在基因组中随机选区160个InDel位点,利用引物设计、PCR和琼脂糖凝胶电泳等技术,在55 ℃的退火温度条件下,开发出32个有且仅有2个等位变异、基于1%琼脂糖凝胶电泳技术易于分辨的长片段插入/缺失标记。应用新开发的32个标记,构建了2018年黄淮海大豆多点鉴定96个参试品系DNA指纹图谱,参试的大豆材料纯度为96.84%,没有同物异名现象发生。研究开发的InDel标记稳定可靠、操作简便,可应用于大豆DNA指纹图谱构建、种子纯度检测等工作。

关键词: 大豆, 分子标记, 长片段插入/缺失标记, 遗传多样性分析

Abstract:

The objective of this work was to develop novel,convenient,and reliable molecular marker in soybean.Twelve soybean germplasm accessions from different geography region were used to develop large-size InDel markers based on 10 depth genomic re-sequencing.Developed InDel markers were used to construct DNA fingerprint of 96 varieties in Huanghuaihai Uniform Test in 2018.The results showed that a total of 66 561 InDel markers,with insertion/deletion fragment size larger than 20 bp,were discovered among the 12 accessions.The distribution pattern among the genome of these InDel markers were also illustrated.The ratio of the InDel in intron,upstream of the gene,downstream of the gene,intergenic region,intragenic region,5'-UTR and 3'-UTR were 12.35%,25.83%,20.44%,34.39%,0.19%,0.93%,1.51%,respectively.There were 42 453 InDels yield insertion/deletion fragment size between 20 to 40 bp,13 044 InDels between 41—60 bp,5 034 InDels between 61—80 bp,2 285 InDels between 81—100 bp,and 2 413 InDels larger than 100 bp.Then,160 InDel markers were randomly selected according to the insertion/deletion fragment size throughout the whole genome.As results,thirty-two InDel markers,that only yield 2 alleles in for each locus and could be distinguished easily on agarose gel,were developed and validated through primer design,PCR and agarose gel electrophoresis.Additionally,DNA fingerprint of 96 varieties in Huanghuaihai Uniform Test in 2018,were constructed using the 32 developed InDel markers.As results,the average purity of the tested soybean varieties was 96.84%,and no varieties shared the same name.The InDel markers developed in this study were stable,reliable and user friendly.They could be used to construct DNA fingerprint and test seed purity of soybean.

Key words: Soybean, Molecular markers, Large size insertion/deletion marker, Genetic diversity analysis

引用本文

李曼, 史晓蕾, 邸锐, 刘志芳, 孟庆民, 付才, 杨春燕, 王冬梅, 张孟臣, 张洁, 闫龙. 大豆长片段插入/缺失标记的开发与应用[J]. 华北农学报, 2022, 37(1): 18-26. doi: 10.7668/hbnxb.20192459.

LI Man, SHI Xiaolei, DI Rui, LIU Zhifang, MENG Qingmin, FU Cai, YANG Chunyan, WANG Dongmei, ZHANG Mengchen, ZHANG Jie, YAN Long. Development and Application of Large-size Insertion/Deletion Markers in Soybean[J]. Acta Agriculturae Boreali-Sinica, 2022, 37(1): 18-26. doi: 10.7668/hbnxb.20192459.