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作物杂志,2019, 第4期: 49–54 doi: 10.16035/j.issn.1001-7283.2019.04.008

• 遗传育种·种质资源·生物技术 • 上一篇    下一篇

玉米亲子代锌铁吸收和分配的研究

平文静,郭媛,黄亚群,陈景堂,祝丽英,赵永锋,郭晋杰   

  1. 河北农业大学农学院/国家玉米改良中心河北分中心,071000,河北保定
  • 收稿日期:2018-12-13 修回日期:2019-05-10 出版日期:2019-08-15 发布日期:2019-08-06
  • 通讯作者: 黄亚群
  • 作者简介:平文静,在读硕士,研究方向玉米遗传育种
  • 基金资助:
    河北省科技计划项目(16226323D-2);农作物种质资源保护项目玉米种质资源保护子课题(2017-2018NWB036-0405)

Study on the Absorption and Distribution of Zinc and Iron between Maize Hybird and Its Parents

Ping Wenjing,Guo Yuan,Huang Yaqun,Chen Jingtang,Zhu Liying,Zhao Yongfeng,Guo Jinjie   

  1. College of Agronomy, Hebei Agricultural University/Hebei Sub-Center of National Maize Improvement Center, Baoding 071000, Hebei, China
  • Received:2018-12-13 Revised:2019-05-10 Online:2019-08-15 Published:2019-08-06
  • Contact: Yaqun Huang

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摘要：

以玉米子粒高锌铁含量自交系NXR22（母本）、子粒低锌铁含量自交系NXR12（父本）及其配制的杂交种（F1）为供试材料,比较双亲及其后代不同穗位的叶片、茎秆及子粒中锌和铁含量、积累量在吐丝期与成熟期间的差异,解析亲子代锌铁吸收与分配特征。研究结果表明:不同基因型玉米叶片、茎秆、子粒中锌铁含量和积累量存在显著差异。F1不同穗位的叶片和茎秆锌铁含量介于双亲之间,且偏向于子粒锌铁含量高的亲本;锌铁积累量显著高于双亲,表现出明显的杂种优势。从吐丝期到成熟期3个供试材料不同穗位的叶片和茎秆锌铁含量和积累量均表现出一定程度的增加。F1子粒中锌含量及积累量偏向于母本,表现出杂种优势;铁含量介于双亲之间,更偏向于母本。

关键词: 玉米, 锌, 铁, 吸收分配

Abstract:

Using high grain zinc and iron concentration parent NXR22 (female), low grain zinc and iron concentration parent NXR12 (male), and their F1, to analyze the concentration and accumulation of zinc and iron in different parts of leaves, stems, and grains, and the characteristics of zinc and iron absorption and distribution in parents and hybrid. The results showed that there were significant differences in zinc and iron concentration and accumulation in leaves, stems and grains of maize with different genotypes. The concentration of zinc and iron in leaves and stems of different ear positions of hybrids was between their parents and tended to the parents with high concentration of zinc-iron in grains. The accumulation of zinc and iron in leaves and stems of different ear positions of hybrids showed obvious heterosis, which was significantly higher than that of their parents. The concentration of zinc and iron in leaves and stems of parents and hybrids increased from silking stage to mature stage. The concentration of zinc in hybrid grain tended to be higher than that of the female parent, and the amount of accumulation showed heterosis. The concentration of iron in hybrid grain was between parents, and the accumulation tended to be higher than that of the female parent with high concentration of zinc and iron.

Key words: Maize (Zea mays L.), Zinc, Iron, Absorption and distribution

图1

F1和双亲不同叶位锌铁含量和积累量的比较 同一部位不同小写字母表示不同基因型在0.05水平上差异显著。下同"

表1

F1及双亲叶片锌铁积累量成熟期与吐丝期相对值（成熟期/吐丝期）"

叶片Leaf Zn Fe
NXR22 F1 NXR12 NXR22 F1 NXR12
穗上叶Upper Leaf 1.16 1.18 1.50 1.23 1.48 1.28
穗位叶Ear Leaf 1.42 1.31 2.20 1.91 2.66 1.93
穗下叶Lower Leaf 1.50 0.39 0.46 2.00 1.00 0.61

图2

F1和双亲不同部位茎锌、铁含量和积累量的比较"

表2

双亲及F1成熟期与吐丝期茎秆锌铁积累量相对比值(成熟期/吐丝期)"

茎秆Stem Zn Fe
NXR22 F1 NXR12 NXR22 F1 NXR12
穗上茎Upper stem 1.13 1.87 1.18 2.62 2.17 2.81
穗位茎Ear stem 0.39 3.18 0.51 0.46 2.42 2.00
穗下茎Lower stem 1.33 2.05 0.55 2.30 2.47 2.06

图3

F1和双亲子粒锌铁含量和积累量的比较"

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