北方农业学报 ›› 2020, Vol. 48 ›› Issue (3): 1-9.doi: 10.12190/j.issn.2096-1197.2020.03.01

• 种质资源·分子生物学 •    下一篇

内蒙古春小麦亲本资源表型性状遗传多样性分析

崔国惠1, 叶君1,2, 吴晓华1, 杨蕾3, 王小兵1, 谭丽萍4, 于美玲1, 赵春芝3, 张春燕5, 张海斌1, 吴云霞1, 李元清1   

  1. 1.内蒙古自治区农牧业科学院,内蒙古 呼和浩特 010031;
    2.河北农业大学 农学院,河北 保定 071001;
    3.巴彦淖尔市农牧业科学研究院 小麦研究所,内蒙古 临河 015000;
    4.赤峰市农牧科学研究院 向日葵研究所,内蒙古 赤峰 024000;
    5.内蒙古拉布大林农牧场试验站,内蒙古 额尔古纳 022250
  • 收稿日期:2010-04-02 出版日期:2020-06-20 发布日期:2020-08-14
  • 通讯作者: 李元清(1959—),女,研究员,学士,主要从事小麦遗传与育种的研究工作。吴云霞(1963—),女,研究员,学士,主要从事农业经济及农业科技期刊编辑工作。
  • 作者简介:崔国惠(1962—),男,研究员,硕士,主要从事小麦遗传与育种的研究工作。
  • 基金资助:
    内蒙古自治区应用技术研究与开发资金项目(2019GG340); 国家重点研发计划项目(2018YFD200407); 内蒙古自治区自然科学基金面上项目(2017MS0312); 河北省博士后科研高层次人才资助项目(B2018003017)

Genetic diversity analysis of phenotype traits of spring wheat parental resources in Inner Mongolia

CUI Guohui1, YE Jun1,2, WU Xiaohua1, YANG Lei3, WANG Xiaobing1, TAN Liping4, YU Meiling1, ZHAO Chunzhi3, ZHANG Chunyan5, ZHANG Haibin1, WU Yunxia1, LI Yuanqing1   

  1. 1. Inner Mongolia Academy of Agricultural and Animal Husbandry Sciences,Hohhot 010031,China;
    2. College of Agronomy,Hebei Agricultural University,Baoding 071001,China;
    3. Wheat Institute,Bayannur Academy of Agricultural and Animal Husbandry Sciences,Linhe 015000,China;
    4. Sunflower Institute,Chifeng Academy of Agricultural and Animal Husbandry Sciences,Chifeng 024000,China;
    5. Test Station,Labu Dalin Farming and Pasture in Inner Mongolia,Ergun 022250,China
  • Received:2010-04-02 Online:2020-06-20 Published:2020-08-14

摘要: 【目的】明确内蒙古春小麦育种亲本资源遗传多样性,提高育种亲本资源的利用效率。【方法】采用完全随机区组设计,对近年来内蒙古主要小麦育种单位组配的70份育种亲本资源进行了表型性状遗传多样性分析。【结果】内蒙古东西部不同生态地区的亲本资源存在较大的差异,且品种间和地点间的差异均达到极显著水平(P<0.01)。表型性状的多样性指数变化范围为1.72~2.08,其中,千粒重的多样性指数最大,为2.08;生育期的多样性指数最小,为1.72;其他表型性状的多样性指数在二者之间。相关性分析表明,单株产量与千粒重呈现显著正相关关系(P<0.001),而与品质相关性状呈现不同程度的负相关关系。基于表型性状对70份亲本资源进行聚类分析,在卡方距离为3.0水平上,70份亲本资源可分为4大类群;第4类群又可分为2个亚群,主要差异表现在品质性状上。【结论】通过遗传多样性分析,70份亲本资源各性状变异丰富,具有广泛的多样性,可为不同育种目标选择针对性亲本资源进行组配提供重要参考。

关键词: 内蒙古, 春小麦, 亲本资源, 表型性状, 遗传多样性, 聚类分析

Abstract: 【Objective】To clarify the genetic diversity of spring wheat parent resources and improve the utilization efficiency of breeding parents in Inner Mongolia.【Methods】The genetic diversity of phenotypic traits of 70 breeding parental resources from Inner Mongolia in recent years was analyzed by using a completely random block design.【Results】The parental resources of different ecological areas in eastern and western Inner Mongolia were significantly different among species and locations (P<0.01).The diversity index of phenotypic traits ranged from 1.72 to 2.08,and the diversity index of 1 000-grain weight was the largest(2.08).The diversity index of the growth period was the lowest(1.72).That of other phenotypic traits was in the middle.Correlation analysis showed that yield per plant was positively correlated with 1 000-grain weight (P<0.001),but negatively correlated with quality-related traits.Cluster analysis was performed on 70 parental resources based on phenotypic traits.At the chi-square distance of 3.0,70 parent resources could be divided into 4 groups.The fourth group could be divided into two subgroups,and the main difference was in quality character.【Conclusion】The characters of 70 parental resources of quinoa had abundant variation and extensive diversity.It could provide important reference for the selection and matching of targeted parental resources with different breeding objectives by genetic diversity analysis.

Key words: Inner Mongolia, Spring wheat, Parental resources, Phenotypic traits, Genetic diversity, Clustering analysis

中图分类号: 

  • S512