Diverse flowering responses subjecting to ambient high temperature in soybean under short-day conditions.

Diverse flowering responses subjecting to ambient high temperature in soybean under short-day conditions.
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DOI:
10.1111/pbi.13996
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发表时间:
2023-04
影响因子:
13.8
通讯作者:
Kong, Fanjiang
Kong, Fanjiang
中科院分区:
工程技术1区
文献类型:
--
作者:
Tang, Yang;Lu, Sijia;Fang, Chao;Liu, Huan;Dong, Lidong;Li, Haiyang;Su, Tong;Li, Shichen;Wang, Lingshuang;Cheng, Qun;Liu, Baohui;Lin, Xiaoya;Kong, Fanjiang

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开花时间是决定作物产量的重要农艺性状之一,受高温影响。当环境温度较高时,植物通常会提前开花,以此作为逃避逆境和确保繁殖成功的一种适应策略。然而,在短日照大豆中,我们发现了相反的方式来响应不同水平的高温,在这种情况下,当温度从25 °C变化到30 °C时,开花加速,但在短日照下,当温度达到35 Mbps°C时,开花延迟。PHYA-E1可能是光周期途径,在35 °C介导的晚花中起关键作用,但在30 °C下不能促进开花。30 °C诱导FT2a和FT5a的上调导致提前开花,而不依赖于E1。因此,大豆在面对不同程度的高温时,为了成功开花和繁殖,采取了不同的反应机制。
Flowering time is one of important agronomic traits determining the crop yield and affected by high temperature. When facing high ambient temperature, plants often initiate early flowering as an adaptive strategy to escape the stress and ensure successful reproduction. However, here we find opposing ways in the short‐day crop soybean to respond to different levels of high temperatures, in which flowering accelerates when temperature changes from 25 to 30 °C, but delays when temperature reaches 35 °C under short day. phyA‐E1, possibly photoperiodic pathway, is crucial for 35 °C‐mediated late flowering, however, does not contribute to promoting flowering at 30 °C. 30 °C‐induced up‐regulation of FT2a and FT5a leads to early flowering, independent of E1. Therefore, distinct responsive mechanisms are adopted by soybean when facing different levels of high temperatures for successful flowering and reproduction.
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