文献类型： 外文期刊

作者： Zheng, Lei ² ; Kong, Ya-Nan ¹ ; Yan, Xue-Chun ¹ ; Liu, Yuan-Xia ¹ ; Wang, Xin-Rui ¹ ; Zhang, Jin-Peng ² ; Qi, Xue-Li ³ ; Cao, Xin-You ⁴ ; Zhang, Shuang-Xi ⁵ ; Liu, Yong-Wei ⁶ ; Zheng, Jia-Cheng ⁷ ; Wang, Chao ² ; Hou, Ze-Hao ² ; Chen, Jun ² ; Zhou, Yong-Bin ² ; Chen, Ming ² ; Ma, You-Zhi ² ; Xu, Zhao-Shi ² ; Lan, Jin-Hao ¹ ;

作者机构： 1.Qingdao Agr Univ, Coll Agron, Qingdao 266109, Peoples R China

2.Chinese Acad Agr Sci CAAS, Inst Crop Sci, State Key Lab Crop Gene Resources & Breeding, Beijing 100081, Peoples R China

3.Henan Acad Agr Sci, Henan Key Lab Wheat Germplasm Resources Innovat &, Key Lab Wheat Biol & Genet Breeding Cent Huanghua, Inst Crop Mol Breeding,Natl Engn Lab Wheat,Minist, Zhengzhou 450002, Peoples R China

4.Shandong Acad Agr Sci, Natl Engn Lab Wheat & Maize, Key Lab Wheat Biol & Genet Improvement, Crop Res Inst, Jinan 250100, Peoples R China

5.Ningxia Acad Agr & Forestry Sci, Inst Crop Sci, Yongning 750105, Peoples R China

6.Hebei Acad Agr & Forestry Sci, Plant Genet Engn Ctr Hebei Prov, Inst Biotechnol & Food Sci, Shijiazhuang 050051, Peoples R China

7.Anhui Sci & Technol Univ, Coll Agron, Fengyang 233100, Peoples R China

8.Chinese Acad Agr Sci, Natl Nanfan Res Inst Sanya, Seed Ind Lab, Sanya 572024, Peoples R China

关键词： MYB-CC transcription factor; Phosphorus deficiency; Drought; Root; ZIFLs genes

期刊名称：PLANT PHYSIOLOGY AND BIOCHEMISTRY （ 影响因子：6.1； 五年影响因子：6.2 ）

ISSN： 0981-9428

年卷期： 2024 年 215 卷

页码：

收录情况： SCI

摘要： Phosphate deficiency and drought are significant environmental constraints that impact both the productivity and quality of wheat. The interaction between phosphorus and water facilitates their mutual absorption processes in plants. Under conditions of both phosphorus deficiency and drought stress, we observed a significant upregulation in the expression of wheat MYB-CC transcription factors through the transcriptome analysis. 52 TaMYB-CC genes in wheat were identified and analyzed their evolutionary relationships, structures, and expression patterns. The TaMYB-CC5 gene exhibited specific expression in roots and demonstrated significant upregulation under phosphorus deficiency and drought stress compared to other TaMYB-CC genes. The over- expression of TaMYB-CC5A in Arabidopsis resulted in a significant increase of root length under stress conditions, thereby enhancing tolerance to phosphate starvation and drought stress. The wheat lines with silenced TaMYBCC5 genes exhibited reduced root length under stress conditions and increased sensitivity to phosphate deficiency and drought stress. In addition, silencing the TaMYB-CC5 genes resulted in altered phosphorus content in leaves but did not lead to a reduction in phosphorus content in roots. Enrichment analysis the co-expression genes of TaMYB-CC5 transcription factors, we found the zinc-induced facilitator-like (ZIFL) genes were prominent associated with TaMYB-CC5 gene. The TaZIFL1, , TaZIFL2, , and TaZIFL5 genes were verified specifically expressed in roots and regulated by TaMYB-CC5 transcript factor. Our study reveals the pivotal role of the TaMYB-CC5 gene in regulating TaZIFL genes, which is crucial for maintaining normal root growth under phosphorus deficiency and drought stress, thereby enhanced resistance to these abiotic stresses in wheat.