The Responses of the Lipoxygenase Gene Family to Salt and Drought Stress in Foxtail Millet (Setaria italica).

The Responses of the Lipoxygenase Gene Family to Salt and Drought Stress in Foxtail Millet (Setaria italica).
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谷子脂氧合酶基因家族对盐和干旱胁迫的响应

DOI:
10.3390/life11111169
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发表时间:
2021-11-02
期刊:
Life (Basel, Switzerland)
影响因子:
--
通讯作者:
Li H
Li H
中科院分区:
其他
文献类型:
--
作者:
Zhang Q;Zhao Y;Zhang J;Li X;Ma F;Duan M;Zhang B;Li H

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植物脂氧合酶(LOXs)是一种非血红素类含铁双加氧酶,通过氧化多种脂类参与植物的生理活动(特别是对生物和非生物胁迫的响应)。然而,对谷子(Setaria Italica)中LOXs的研究很少。在本研究中,我们鉴定了谷子中的LOX基因家族,并根据它们的系统发育关系将这12个成员分为三个亚家族。在盐胁迫和干旱胁迫下,LOX基因表现出不同的表达模式。其中,只有SiLOX7在两个耐胁迫品种豫谷1号(YG1)和秦皇2号(Qh2)中表达上调,表明SiLOX7可能在非生物胁迫响应中发挥重要作用。本研究为进一步研究谷子LOX基因在非生物胁迫适应中的作用及其他可能的生物学功能奠定了基础。
Plant lipoxygenases (LOXs), a kind of non-heme iron-containing dioxygenases, participate plant physiological activities (especially in response to biotic and abiotic stresses) through oxidizing various lipids. However, there was few investigations on LOXs in foxtail millet (Setaria italica). In this study, we identified the LOX gene family in foxtail millet, and divided the total 12 members into three sub-families on the basis of their phylogenetic relationships. Under salt and drought stress, LOX genes showed different expression patterns. Among them, only SiLOX7 showed up-regulated expression in Yugu1 (YG1) and Qinhuang2 (QH2), two stress-tolerant varieties, indicating that SiLOX7 may play an important role in responses to abiotic stress. Our research provides a basis for further investigation of the role of LOX genes in the adaptation to abiotic stresses and other possible biological functions in foxtail millet.
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