通过植物激素途径调控玉米中胚轴长度和株高。
Regulates Maize Mesocotyl Length and Plant Height through the Phytohormone Pathways.
作者信息
Chen Liping, Li Qiuhua, Wang Ming, Xiao Feng, Li Kangshi, Yang Ran, Sun Meng, Zhang Haiyan, Guo Jinjie, Chen Jingtang, Jiao Fuchao
机构信息
College of Agronomy, Qingdao Agricultural University, Qingdao 266109, China.
The Characteristic Laboratory of Crop Germplasm Innovation and Application, Provincial Department of Education, College of Agronomy, Qingdao Agricultural University, Qingdao 266109, China.
出版信息
Life (Basel). 2023 Jul 7;13(7):1522. doi: 10.3390/life13071522.
The morphogenesis of crops is critical to their yield performance. COP1 (constitutively photomorphogenic1) is one of the core regulators in plant morphogenesis and has been deeply studied in . However, the function of COP1 in maize is still unclear. Here, we found that the mesocotyl lengths of loss-of-function mutants were shorter than those of wild-type B73 in darkness, while the mesocotyl lengths of lines with overexpression were longer than those of wild-type B104. The plant height with was shorter than that of B73 in both short- and long-day photoperiods. Using transcriptome RNA sequencing technology, we identified 33 DEGs (differentially expressed genes) between B73's etiolated seedlings and those featuring , both in darkness. The DEGs were mainly enriched in the plant phytohormone pathways. Our results provide direct evidence that functions in the elongation of etiolated seedlings in darkness and affects plant height in light. Our data can be applied in the improvement of maize plant architecture.
作物的形态建成对其产量表现至关重要。CONSTITUTIVELY PHOTOMORPHOGENIC1（COP1）是植物形态建成中的核心调控因子之一，已在[具体研究对象]中得到深入研究。然而，COP1在玉米中的功能仍不清楚。在此，我们发现功能缺失突变体在黑暗中的中胚轴长度比野生型B73短，而过表达株系的中胚轴长度比野生型B104长。在短日照和长日照光周期下，[具体基因或株系]的株高均比B73短。利用转录组RNA测序技术，我们在黑暗条件下鉴定出了B73黄化幼苗与[具体基因或株系]黄化幼苗之间的33个差异表达基因（DEGs）。这些差异表达基因主要富集在植物激素途径中。我们的结果提供了直接证据，表明[具体基因或株系]在黑暗中黄化幼苗的伸长过程中发挥作用，并影响光照下的株高。我们的数据可应用于玉米植株形态的改良。
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