植物学报 ›› 2023, Vol. 58 ›› Issue (4): 535-547.DOI: 10.11983/CBB22081

• 研究报告 • 上一篇    下一篇

山西小麦籽粒叶黄素含量变异及遗传特性分析

武棒棒1, 郝宇琼2, 杨淑斌1, 黄雨茜1, 关攀锋3, 郑兴卫2, 赵佳佳2, 乔玲2, 李晓华2, 刘维仲1(), 郑军2()   

  1. 1.山西师范大学生命科学学院, 太原 030031
    2.山西农业大学小麦研究所, 农业农村部有机旱作农业重点实验室(省部共建), 临汾 041000
    3.郑州大学农学院, 郑州 450001
  • 收稿日期:2022-04-20 接受日期:2022-09-19 出版日期:2023-07-01 发布日期:2022-11-11
  • 通讯作者: *E-mail: liuwzh@sxnu.edu.cn;sxnkyzj@126.com
  • 作者简介:† 共同第一作者。
  • 基金资助:
    山西省重点研发项目(2022ZDYF108-02);山西省现代农业小麦产业技术体系(2023-CYJSTX02-05)

Evaluation and Genetic Variation of Grain Lutein Contents in Common Wheat From Shanxi

Bangbang Wu1, Yuqiong Hao2, Shubin Yang1, Yuxi Huang1, Panfeng Guan3, Xingwei Zheng2, Jiajia Zhao2, Ling Qiao2, Xiaohua Li2, Weizhong Liu1(), Jun Zheng2()   

  1. 1. College of Life Sciences, Shanxi Normal University, Taiyuan 030031, China
    2. Key Laboratory of Organic Dry Farming Agriculture of the Ministry of Agriculture and Rural Affairs (Jointly Built by Provinces and Departments), Institute of Wheat Research, Shanxi Agricultural University, Linfen 041000, China
    3. School of Agricultural Sciences, Zhengzhou University, Zhengzhou 450001, China
  • Received:2022-04-20 Accepted:2022-09-19 Online:2023-07-01 Published:2022-11-11
  • Contact: *E-mail: liuwzh@sxnu.edu.cn;sxnkyzj@126.com
  • About author:† These authors contributed equally to this paper.

摘要: 叶黄素在保护视力、预防糖尿病、心血管硬化和癌症等方面具有良好功效。利用小麦(Triticum aestivum)进行叶黄素的生物强化逐渐引起人们的重视。以3种环境下种植的194份山西小麦为材料, 采用有机溶剂浸提法提取叶黄素, 利用高效液相色谱法测定不同种质的叶黄素含量, 分析小麦叶黄素含量的广义遗传力, 及其与籽粒颜色、冬春性、地域分布、品种类型和主要农艺性状的关系, 并通过全基因组关联分析挖掘叶黄素含量相关的遗传位点。结果表明, 山西小麦品种间叶黄素含量变异范围较广, 变异系数为33.12%-48.57%, 基因型是影响叶黄素含量的主要因素, 3种环境下小麦叶黄素含量范围分别为0.67-4.03、0.16-5.05和0.16-3.63 μg·g-1; 冬性小麦品种的平均含量高于春性品种, 水地品种平均含量高于旱地品种, 籽粒颜色与育种年代对叶黄素含量无显著影响; 抽穗期、株高和千粒重与叶黄素含量呈显著负相关, 其它农艺性状对叶黄素均无明显影响; 全基因组关联分析在1B、3A和7A染色体上发现4个与叶黄素含量相关的主效位点, 其中QLuc.3AQLuc.7A.1是影响叶黄素含量的新位点。研究结果可为小麦叶黄素生物强化品种的选育和栽培提供有价值的信息。

关键词: 小麦, 叶黄素, 遗传因素, 农艺性状, 全基因组关联分析

Abstract: Lutein can effectively reduce incidence of atherosclerosis, diabetes, cancer and multiple eye diseases. The lutein biofortification through food crop has gained more attention with improvement of daily diet. In this paper, 194 Shanxi wheat cultivars planted in three environments were used to extract lutein by organic solvent extraction, and the content of lutein in different germplasms was determined by high performance liquid chromatography (HPLC). The broad-sense heritability of lutein content in wheat and its relationship with grain color, winter/spring types, geographical origin, accession types, and main agronomic traits were analyzed, and the genetic loci associated with lutein content were identified through genome-wide association analysis. Results showed that significant variation in lutein contents occurred among Shanxi wheat accessions, the coefficient of variation was 33.12%-48.57%. Genotype was the main factor affecting lutein content. The average lutein content in three environments was 0.67-4.03 μg·g-1, 0.16-5.05 μg·g-1 and 0.16-3.63 μg·g-1, respectively. The average lutein content of winter types and irrigated-wheat accessions were higher than those of spring types and dryland-wheat, respectively. There was no significant effect of grain color and released years on lutein content. Heading date, plant height and 1 000 kernel weight were significantly negative correlated with lutein content. The other agronomic traits had no significant effect on lutein. Genome-wide association analysis found four major loci related to lutein content on chromosomes 1B, 3A and 7A, among them, QLuc.3A and QLuc.7A.1 are new loci affecting the lutein content. These results provide valuable information for breeding and cultivation of wheat lutein bioaugmentation varieties.

Key words: wheat, lutein, genetic factor, agronomic traits, genome-wide association study