华北农学报 ›› 2017, Vol. 32 ›› Issue (5): 31-36. doi: 10.7668/hbnxb.2017.05.006

所属专题: 玉米 生物技术

• 论文 • 上一篇    下一篇

玉米雄穗长的全基因组关联分析

潘顺祥1,3, 赵美爱1,3, 裴玉贺2,3, 郭新梅2,3, 宋希云2,3   

  1. 1. 青岛农业大学 生命科学学院, 山东 青岛 266109;
    2. 青岛农业大学 农学与植物保护学院, 山东 青岛 266019;
    3. 青岛农业大学, 青岛市主要农作物种质创新与应用重点实验室, 山东 青岛 266109
  • 收稿日期:2017-07-10 出版日期:2017-10-28
  • 通讯作者: 宋希云(1961-),男,山东潍坊人,教授,博士,主要从事玉米遗传育种、生化与分子生物学研究。
  • 作者简介:潘顺祥(1990-),男,山东潍坊人,硕士,主要从事作物遗传育种研究。
  • 基金资助:
    国家自然科学基金项目(31371636);山东省现代农业产业技术体系玉米产业创新团队项目(SDAIT-01-022-01);山东省农业良种工程;山东省农业生物资源创新利用研究课题和青岛市应用基础研究计划项目(14-2-4-13-jch)

Genome-wide Association Analysis of Tassel Length in Maize

PAN Shunxiang1,3, ZHAO Meiai1,3, PEI Yuhe2,3, GUO Xinmei2,3, SONG Xiyun2,3   

  1. 1. College of Life Science, Qingdao Agricultural University, Qingdao 266109, China;
    2. College of Agronomy and Plant Protection, Qingdao Agricultural University, Qingdao 266109, China;
    3. Qingdao Agricultural University, Qingdao Key Lab of Germplasm Innovation and Application of Major Crops, Qingdao 266109, China
  • Received:2017-07-10 Published:2017-10-28

摘要: 为了阐明雄穗长的遗传基础并定位相关的数量性状位点,利用289份常用玉米自交系为试验材料,在自然条件下测量并分析玉米的株高、穗位高、雄穗柄长与雄穗长的相关性,并利用全基因组关联分析对雄穗长进行初步定位。结果表明,玉米雄穗长与3个农艺性状呈显著相关或极显著相关,其中与雄穗柄长关联最密切,相关系数最高达到0.717。同时共定位出13个与玉米雄穗长相关的标记位点,分别位于Bin1.05、Bin7.02、Bin8.03、Bin10.05处。采用全基因组关联分析的方法发掘雄穗长基因位点及候选基因,对揭示雄穗的遗传机理,加速玉米育种进程具有重要的意义。

关键词: 雄穗长, 相关性分析, 全基因组关联分析

Abstract: In order to explain the genetic basis of tassel length and locate the related QTLs,289 maize inbred lines were used as the experimental material,the correlation between the tassel length of maize and plant height,ear height,tassel stem length were measured and analyzed under natural conditions,and genome association analysis was also applied to initially map the length of tassel. The results showed that tassel length and the three agronomic traits were significantly or extremely significantly correlated,therein,tassel length had the most significant correlation with tassel stem length,and the highest correlation coefficient has reached 0.717.At the same time,a total of 13 marker sites correlated with tassel length were identified and they were located on Bin1.05,Bin7.02,Bin8.03 and Bin10.05. Genome-wide association analysis was used to explore the long locus and candidate genes,which had an important significance to reveal the genetic mechanism of tassel and accelerate the process of maize breeding.

Key words: Tassel length, Correlation analysis, Genome-wide association analysis

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引用本文

潘顺祥, 赵美爱, 裴玉贺, 郭新梅, 宋希云. 玉米雄穗长的全基因组关联分析[J]. 华北农学报, 2017, 32(5): 31-36. doi: 10.7668/hbnxb.2017.05.006.

PAN Shunxiang, ZHAO Meiai, PEI Yuhe, GUO Xinmei, SONG Xiyun. Genome-wide Association Analysis of Tassel Length in Maize[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2017, 32(5): 31-36. doi: 10.7668/hbnxb.2017.05.006.

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