Wheat multiple synthetic derivatives: a new source for heat stress tolerance adaptive traits.

Wheat multiple synthetic derivatives: a new source for heat stress tolerance adaptive traits.
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DOI:
10.1270/jsbbs.16204
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发表时间:
2017-06
期刊:
影响因子:
2.4
通讯作者:
Tsujimoto H
Tsujimoto H
中科院分区:
农林科学3区
文献类型:
--
作者:
Elbashir AAE;Gorafi YSA;Tahir ISA;Kim JS;Tsujimoto H

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热应激不利于小麦(Triticum aestivum L.)的生产力。在这项研究中,我们旨在从多种合成衍生物(MSD)群体中选择耐热植物,并评估其农艺和生理特性。我们从以‘Norin 61’(N61)品种为背景的群体中选择了6种耐受植物,并建立了6个MNH(选择为耐热胁迫的N61的MSD群体)品系。我们在田间和生长室中用 N61 培养这些品系。在田间,我们采用最佳播种和晚播来确保植物暴露在高温下。在生长室中,除了 N61 之外,我们还使用了耐热品种“Gelenson”和“Bacanora”。我们证实MNH2和MNH5品系获得了耐热性。与 N61 相比,这些品系具有更高的光合作用和气孔导度,并且在热胁迫下没有表现出谷物产量和生物量的降低。我们注意到N61对热应激具有较好的适应性。我们的结果表明,MSD 种群包含节节山羊草的多样性,是揭示源自该野生物种的有用数量性状的有前景的资源。选定的品系可用于耐热应激育种。
Heat stress is detrimental to wheat (Triticum aestivum L.) productivity. In this study, we aimed to select heat-tolerant plants from a multiple synthetic derivatives (MSD) population and evaluate their agronomic and physiological traits. We selected six tolerant plants from the population with the background of the cultivar ‘Norin 61’ (N61) and established six MNH (MSD population of N61 selected as heat stress-tolerant) lines. We grew these lines with N61 in the field and growth chamber. In the field, we used optimum and late sowings to ensure plant exposure to heat. In the growth chamber, in addition to N61, we used the heat-tolerant cultivars ‘Gelenson’ and ‘Bacanora’. We confirmed that MNH2 and MNH5 lines acquired heat tolerance. These lines had higher photosynthesis and stomata conductance and exhibited no reduction in grain yield and biomass under heat stress compared to N61. We noticed that N61 had relatively good adaptability to heat stress. Our results indicate that the MSD population includes the diversity of Aegilops tauschii and is a promising resource to uncover useful quantitative traits derived from this wild species. Selected lines could be useful for heat stress tolerance breeding.
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发表时间: 2011-09-13
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发表时间: 1990-07-01
期刊: CROP SCIENCE
影响因子: 2.3
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DOI: 10.1270/jsbbs.61.130
发表时间: 2011-06-01
期刊: BREEDING SCIENCE
影响因子: 2.4
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