华北农学报 ›› 2015, Vol. 30 ›› Issue (2): 59-63. doi: 10.7668/hbnxb.2015.02.012

所属专题: 苹果 盐碱胁迫 生物技术

• 论文 • 上一篇    下一篇

苹果砧木耐盐性基因SRAP标记的鉴定及序列分析

孙叶红1,2, 张媛2, 李中勇2, 邵建柱2, 徐继忠2   

  1. 1. 河北省邢台市农业科学研究院, 河北 邢台 054000;
    2. 河北农业大学 园艺学院, 河北 保定 071001
  • 收稿日期:2015-01-26 出版日期:2015-04-28
  • 通讯作者: 徐继忠(1964-),男,河北保定人,教授,博士,主要从事果树结实生理与分子生物学研究。
  • 作者简介:孙叶红(1984-),女,河北邢台人,助理研究员,硕士,主要从事园艺作物栽培与育种研究。
  • 基金资助:
    河北省科技攻关计划项目(04220111D)

Identification and Sequence Analysis of SRAP Markers Linked to Salt-tolerance Gene in Apple Rootstock

SUN Ye-hong1,2, ZHANG Yuan2, LI Zhong-yong2, SHAO Jian-zhu2, XU Ji-zhong2   

  1. 1. Xingtai Academy of Agricultural Sciences, Xingtai 054000, China;
    2. Horticulture College, Agricultural University of Hebei, Baoding 071001, China
  • Received:2015-01-26 Published:2015-04-28

摘要: 筛选苹果砧木耐盐相关的分子标记,为耐盐品种选育的辅助选择提供理论依据。以西府海棠×S19杂交组合的F1为试材,采用BSA法,筛选与耐盐基因连锁的SRAP标记,通过144棵F1单株对标记进行分析验证,并对标记进行测序及序列分析。获得了4条与耐盐基因连锁的SRAP标记,验证分析表明,4条标记的分子鉴定结果与水培筛选结果的吻合率为81.94% ~92.36%。序列分析表明,4条标记的序列全长为139~233 bp,Ⅰ序列与红叶石楠中编码ATP合酶β亚基有较高相似性,相似度为98%,其他序列分别可能与梨类受体蛋白激酶、苹果肌球蛋白及苹果UDP-糖基转移酶存在部分相似性。4条SRAP标记可用于苹果砧木耐盐性分子鉴定和耐盐基因克隆的研究。

关键词: 耐盐性, SRAP, 差异表达分析

Abstract: The study was conducted to screen molecular markers of salt-tolerance gene in apple rootstock, which providing a theoretical basis for molecular assistant selection breeding in plants salt-tolerance.F1 of Malus micromalus ×S19 were used to screen markers linked to salt-tolerance gene by BSA method and SRAP technology.Four pairs of primers (Me1Em2, Me1Em8, Me6Em12 and Me6Em14) were screened from 128 ones, which expressed polymorphism in parents and DNA pools and totally produced 4 polymorphic fragments.The four pairs of primers were tested by 144 F1 hybrid seedings, and the coincidence rate between hydroponic screening and the SRAP analysis were between 81.94% and 92.36%.The length of the 4 polymorphic fragments (Ⅰ, Ⅱ, Ⅲ and Ⅳ)was between 139 bp and 233 bp by cloning and sequencing.Sequence alignment revealed that sequenceⅠhad relatively highly identity with ATP synthase beta subunit gene(ATP-β) from Photinia fraseri, and there was an identity of 98% for nucleotide sequence.Additionally, other sequences showed partial identity with probable receptor-like protein kinase from Pyrus × Bretschneideri, myosin from Malus domestica, and UDP-glycosyltransferase from Malus domestica, respectively.The 4 markers selected not only could be used in molecular identification of salt tolerance, but also provide a foundation to clone salt-tolerance gene for apple rootstock.

Key words: Salt-tolerance, SRAP, Differential expression analysis

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引用本文

孙叶红, 张媛, 李中勇, 邵建柱, 徐继忠. 苹果砧木耐盐性基因SRAP标记的鉴定及序列分析[J]. 华北农学报, 2015, 30(2): 59-63. doi: 10.7668/hbnxb.2015.02.012.

SUN Ye-hong, ZHANG Yuan, LI Zhong-yong, SHAO Jian-zhu, XU Ji-zhong. Identification and Sequence Analysis of SRAP Markers Linked to Salt-tolerance Gene in Apple Rootstock[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2015, 30(2): 59-63. doi: 10.7668/hbnxb.2015.02.012.

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