华北农学报 ›› 2016, Vol. 31 ›› Issue (S1): 92-96. doi: 10.7668/hbnxb.2016.S1.016

• 作物遗传育种·种质资源·生物技术 • 上一篇    下一篇

利用EST-SSR标记和形态性状检测31个芍药品种的遗传多样性

蔡健1, 祝旋1, 谢实龙1, 范海燕1, 邢彬2, 马同富1   

  1. 1. 阜阳师范学院 生物与食品工程学院, 安徽 阜阳 236037;
    2. 乐桥第二中学, 安徽 庐江 231581
  • 收稿日期:2016-06-13 出版日期:2016-12-28
  • 通讯作者: 马同富(1965-),男,安徽阜阳人,研究员,主要从事药用植物分子生物学研究。
  • 作者简介:蔡健(1968-),男,安徽阜阳人,教授,博士,主要从事植物分子生物学研究。
  • 基金资助:
    安徽省高校省级自然科学基金重点项目(KJ2013A207;KJ2014A194);安徽省省级学科建设重大项目(皖教秘科[2014]28号);阜阳师范学院重大科技成果孵化基金项目(kjfh201605);2016年大学生创新创业训练计划项目(201610371023)

Genetic Diversity Analyzed by EST-SSR Marker and Polymorphic Traits of 31 Paeonia lactiflora Cultivars

CAI Jian1, ZHU Xuan1, XIE Shilong1, FAN Haiyan1, XING Bin2, MA Tongfu1   

  1. 1. Biology and Food Engineering School, Fuyang Normal University, Fuyang 236037, China;
    2. The Second Middle Schoolof Le Qiao, Lujiang 231581, China
  • Received:2016-06-13 Published:2016-12-28

摘要: 采用EST-SSR分子标记技术和2年田间试验方法对31个芍药品种的遗传多样性进行研究。用80对来源于牡丹的EST-SSR标记,以芍药品种雪山金辉、针刺莲、遍地红和紫檀生烟DNA为模板,对引物进行筛选,共筛选到52对多态性引物,多态率为65%。进一步利用筛选的52对多态性EST-SSR引物对31个芍药品种的亲缘关系进行分析。结果表明:52对EST-SSR引物在31份材料中共扩增出了265.2个多态性基因型,平均每对引物5.1个,采用Nei和Li的方法,计算品种间的遗传距离;同时,以2年田间试验获得的31个品种花色、花型、株高、株幅、花径、叶长、叶宽、株型和叶型等农艺性状表型平均数正态标准化后,利用欧氏距离计算品种间遗传距离。基于EST-SSR分子标记的聚类分析与系谱分析结果基本一致。若以整个遗传距离的总平均数作尺度对聚类图的结果进行分类,可分为6类。Mantel检测表明,EST-SSR分子标记数据计算的遗传距离矩阵和9个农艺性状计算的遗传距离矩阵具有极显著的相关性(r=0.802 3,t=10.324),可为芍药新品种培育及产业化奠定基础。

关键词: 芍药, 分子标记, 形态学, 遗传多样性, 聚类分析

Abstract: Genetic diversity of 31 Paeonia lactiflora cultivars was analyzed by EST-SSR marker and phenotypic traits.Eighty EST-SSR primers from Peony were screened against genomic DNA of Xueshanjinhui,Zhencilian,Biandihong and Zitanshengyan,and 52 primer pairs showed the polymorphism,accounting for 65% of total primers.Then the 52 EST-SSR primers showing polymorphism were subjected to reveal the genetic relationships among the 31 Paeonia lactiflora cultivars.The results showed that among the 31 Paeonia lactiflora cultivars,52 EST-SSR primers pairs had 265.2 polymorphic loci,and 5.1 polymorphic loci were detected by each primers pairs.The Nei's distance between cultivars was calculated for cluster analysis.Moreover,the genetic distance based on the agronomic characters,such as flower color,flower form,plant height,plant width,flower diameter,leaf length,blade width,plant type and leaf type was calculated by Euclidean distance.The classification of Paeonia lactiflora cultivars using the Unweighted Pair-group Method Arithmetic Averages (UPGMA) based on the pair distance is mostly consistent with known pedigree information.The 31 Paeonia lactiflora cultivars have been mainly classified into six groups. GroupⅠconsists of Qihualushuang, Zhushapan, Cibai, Yanzhidianhong, Yulinhong, Yinlonghuanzhu, Moziling, Ziyunu,Baiyubing and Ziliantuojin; Group Ⅱ consists of Hongyanfeishuang, Tianshanhongxing, Zitanshengyan and Xueshanziyu; Group Ⅲ consists of Huahonglou and Zifengyu; Group Ⅳ consists of Zhencilian, Pantuoronghua, Baiyupan and Fenchidicui; Group Ⅴ consists of Biandihong, Tuopanxianbao, Dongfanghong, Ziyanfeishuang, Meiguipiaoxiang and Xueshanjinhui; Group Ⅵ consists of Zihongkui, Hongjuhua, Hongpantuojin and Duoyezi. Mantel test revealed that the goodness of fit between EST-SSR marker and phenotypic analyses was significant (r=0.802 3,t=10.324) in analyzing detecting genetic diversity of the cultivars.This study provided theoretic base for new cultivar breeding and industrialization of Paeonia lactiflora in the future.

Key words: Paeonia lactiflora, Molecular marker, Agronomic characters, Genetic diversity, Cluster analysis

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引用本文

蔡健, 祝旋, 谢实龙, 范海燕, 邢彬, 马同富. 利用EST-SSR标记和形态性状检测31个芍药品种的遗传多样性[J]. 华北农学报, 2016, 31(S1): 92-96. doi: 10.7668/hbnxb.2016.S1.016.

CAI Jian, ZHU Xuan, XIE Shilong, FAN Haiyan, XING Bin, MA Tongfu. Genetic Diversity Analyzed by EST-SSR Marker and Polymorphic Traits of 31 Paeonia lactiflora Cultivars[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2016, 31(S1): 92-96. doi: 10.7668/hbnxb.2016.S1.016.

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