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首页> 外文期刊>Canadian Journal of Plant Science >Comparison of zinc, iron, and selenium accumulation between synthetic hexaploid wheat and its tetraploid and diploid parents
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Comparison of zinc, iron, and selenium accumulation between synthetic hexaploid wheat and its tetraploid and diploid parents

机译:合成六倍体麦片及其四倍体和二倍体父母锌,铁和硒积累的比较及其四倍体和二倍体父母

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摘要

Synthetic hexaploid wheat (SHW; genome AABBDD) was derived from a cross of Triticum turgidum L. (BBAA) with Aegilops tauschii Coss. (DD). Systematic investigations of the effects of allohexaploidization on zinc (Zn), iron (Fe), and selenium (Se) accumulation are still lacking. Here, the Fe, Zn, and Se concentrations in SHW lines and their tetraploid and diploid parents were compared in a hydroponic culture experiment. Triticum turgidum showed larger genotypic variation of Zn and Fe concentrations than SHW and A. tauschii. The Se concentration of A. tauschii was significantly higher while its Zn and Fe concentrations were lower than in tetraploid wheat and SHW. Although the Zn and Fe concentrations of some SHW lines increased approximately 20%, no SHW line showed a higher Se concentration than its high-value parent. However, because of the generally increased biomass in SHW lines, the total Se content per plant of most SHW lines was higher than their high-value parents. These new SHWs with high micronutrient content provide novel resources for biofortification breeding. Additionally, the micronutrient concentrations in some SHW lines were not consistent with those in their parents, indicating heterosis or non-additive effects that might result from interaction among the A, B, and D genomes after allopolyploidization.
机译:合成六倍体小麦(SHW; Genome AABBDD)衍生自特氏Turgidum L.(BBAA)的十字架与Aegilops Tauschii Coss。 (DD)。系统地研究含有Allohexaploidization对锌(Zn),铁(Fe)和硒的影响的影响仍然缺乏。这里,在水培培养实验中比较了SHW线和它们的四倍体和二倍体父母中的Fe,Zn和Se浓度。 Triticum Turgidum显示出比SHW和A. Tauschii的Zn和Fe浓度的较大基因型变异。 A.Tauschii的SE浓度明显高于其Zn和Fe浓度低于四倍体小麦和SHW。虽然一些SHW线的Zn和Fe浓度增加了大约20%,但没有SHW线显示出比其高价值父母更高的SE浓度。然而,由于SHW线路中的生物质通常增加,大多数SHW线的每个植物的SE含量高于其高价值父母。这些具有高微量营养素内容的新SHW为生物侵入育种提供了新的资源。另外,一些SHW线中的微量营养素浓度与父母中的微量营养素浓度不一致,表明在全多聚丙烯化后A,B和D基因组之间可能导致的杂种优势或非添加剂效应。

著录项

  • 来源
    《Canadian Journal of Plant Science》 |2017年第4期|共10页
  • 作者单位

    Chinese Acad Sci Northwest Inst Plateau Biol Xining 810001 Qinghai Peoples R China;

    Chinese Acad Sci Northwest Inst Plateau Biol Xining 810001 Qinghai Peoples R China;

    Chinese Acad Sci Northwest Inst Plateau Biol Xining 810001 Qinghai Peoples R China;

    Chinese Acad Sci Northwest Inst Plateau Biol Xining 810001 Qinghai Peoples R China;

    Sichuan Agr Univ Triticeae Res Inst Chengdu 611130 Sichuan Peoples R China;

    Chinese Acad Sci Northwest Inst Plateau Biol Xining 810001 Qinghai Peoples R China;

    Chinese Acad Sci Northwest Inst Plateau Biol Xining 810001 Qinghai Peoples R China;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 植物学;
  • 关键词

    micronutrient accumulation; allohexaploidization; hydroponic culture experiment;

    机译:微量营养素积累;allohexaploidization;水培文化实验;

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