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Li J, Guo T, Guo M, Dai X, Xu X, Li Y, Song Z, Liang M. Exogenous BR delayed peach fruit softening by inhibiting pectin degradation enzyme genes. Front Plant Sci 2023; 14:1226921. [PMID: 37600192 PMCID: PMC10436216 DOI: 10.3389/fpls.2023.1226921] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/22/2023] [Accepted: 07/19/2023] [Indexed: 08/22/2023]
Abstract
Peach fruit deteriorates and senesces rapidly when stored at room temperature. Brassinosteroids (BRs) play an important role in regulating plant growth and development and maintaining fruit quality. However, little information is available on the effect of BRs on the senescence of harvested peach fruit. In this study, different concentrations of BR were used to treat 'Hongniang' peach fruit, and the results showed that 10 μM BR was the most beneficial concentration to delay the senescence of peach fruits. BR treatment delayed the decrease of fruit firmness, the release of ethylene, the increase in water-soluble pectin (WSP) and ionic-soluble pectin (ISP) content and the decrease in covalently bound pectin (CBP) content, inhibited the activities of pectin degradation enzymes, and inhibited the gene expression of PpPME1/3, PpPG, PpARF2, and PpGAL2/16. In addition, BR treatment also inhibited the expression of PpBES1-5/6. Cis-acting regulatory element analysis of pectin degradation enzyme promoters showed that many of them contained BES1 binding elements. All the above results showed that BR treatment had a positive effect on delaying the senescence of peach fruit and prolonging its storage period.
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Affiliation(s)
- Jianzhao Li
- The Engineering Research Institute of Agriculture and Forestry, Ludong University, Yantai, Shandong, China
- College of Agriculture, Ludong University, Yantai, Shandong, China
| | - Tingting Guo
- The Engineering Research Institute of Agriculture and Forestry, Ludong University, Yantai, Shandong, China
- College of Agriculture, Ludong University, Yantai, Shandong, China
| | - Meiling Guo
- The Engineering Research Institute of Agriculture and Forestry, Ludong University, Yantai, Shandong, China
- College of Agriculture, Ludong University, Yantai, Shandong, China
| | - Xiaonan Dai
- The Engineering Research Institute of Agriculture and Forestry, Ludong University, Yantai, Shandong, China
- College of Agriculture, Ludong University, Yantai, Shandong, China
| | - Xiaofei Xu
- The Engineering Research Institute of Agriculture and Forestry, Ludong University, Yantai, Shandong, China
- College of Agriculture, Ludong University, Yantai, Shandong, China
| | - Yanju Li
- Yantai Academy of Agricultural Sciences, Yantai, Shandong, China
| | - Zhizhong Song
- The Engineering Research Institute of Agriculture and Forestry, Ludong University, Yantai, Shandong, China
- College of Agriculture, Ludong University, Yantai, Shandong, China
| | - Meixia Liang
- The Engineering Research Institute of Agriculture and Forestry, Ludong University, Yantai, Shandong, China
- College of Agriculture, Ludong University, Yantai, Shandong, China
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Zhang R, Zhang S, Li J, Gao J, Song G, Li W, Geng S, Liu C, Lin Y, Li Y, Li G. CRISPR/Cas9-targeted mutagenesis of TaDCL4, TaDCL5 and TaRDR6 induces male sterility in common wheat. Plant Biotechnol J 2023; 21:839-853. [PMID: 36597709 PMCID: PMC10037139 DOI: 10.1111/pbi.14000] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/21/2022] [Revised: 11/08/2022] [Accepted: 12/24/2022] [Indexed: 06/17/2023]
Abstract
Phased, small interfering RNAs (phasiRNAs) are important for plant anther development, especially for male sterility. PhasiRNA biogenesis is dependent on genes like RNA polymerase 6 (RDR6), DICER-LIKE 4 (DCL4), or DCL5 to produce 21- or 24 nucleotide (nt) double-strand small RNAs. Here, we generated mutants of DCL4, DCL5 and RDR6 using CRISPR/Cas9 system and studied their effects on plant reproductive development and phasiRNA production in wheat. We found that RDR6 mutation caused sever consequence throughout plant development starting from seed germination and the dcl4 mutants grew weaker with thorough male sterility, while dcl5 plants developed normally but exhibited male sterility. Correspondingly, DCL4 and DCL5, respectively, specified 21- and 24-nt phasiRNA biogenesis, while RDR6 contributed to both. Also, the three key genes evolved differently in wheat, with TaDCL5-A/B becoming non-functioning and TaRDR6-A being lost after polyploidization. Furthermore, we found that PHAS genes (phasiRNA precursors) identified via phasiRNAs diverged rapidly among sub-genomes of polyploid wheat. Despite no similarity being found among phasiRNAs of grasses, their targets were enriched for similar biological functions. In light of the important roles of phasiRNA pathways in gametophyte development, genetic dissection of the function of key genes may help generate male sterile lines suitable for hybrid wheat breeding.
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Affiliation(s)
- Rongzhi Zhang
- Crop Research InstituteShandong Academy of Agricultural SciencesJinanChina
- Ministry of Agriculture, Key Laboratory of Wheat Biology and Genetic Improvement on North Yellow and Huai River ValleyJinanChina
- National Engineering Research Center for Wheat and MaizeJinanChina
| | - Shujuan Zhang
- Crop Research InstituteShandong Academy of Agricultural SciencesJinanChina
- Ministry of Agriculture, Key Laboratory of Wheat Biology and Genetic Improvement on North Yellow and Huai River ValleyJinanChina
- National Engineering Research Center for Wheat and MaizeJinanChina
| | - Jihu Li
- Crop Research InstituteShandong Academy of Agricultural SciencesJinanChina
- Ministry of Agriculture, Key Laboratory of Wheat Biology and Genetic Improvement on North Yellow and Huai River ValleyJinanChina
- National Engineering Research Center for Wheat and MaizeJinanChina
| | - Jie Gao
- Crop Research InstituteShandong Academy of Agricultural SciencesJinanChina
- Ministry of Agriculture, Key Laboratory of Wheat Biology and Genetic Improvement on North Yellow and Huai River ValleyJinanChina
- National Engineering Research Center for Wheat and MaizeJinanChina
| | - Guoqi Song
- Crop Research InstituteShandong Academy of Agricultural SciencesJinanChina
- Ministry of Agriculture, Key Laboratory of Wheat Biology and Genetic Improvement on North Yellow and Huai River ValleyJinanChina
- National Engineering Research Center for Wheat and MaizeJinanChina
| | - Wei Li
- Crop Research InstituteShandong Academy of Agricultural SciencesJinanChina
- Ministry of Agriculture, Key Laboratory of Wheat Biology and Genetic Improvement on North Yellow and Huai River ValleyJinanChina
- National Engineering Research Center for Wheat and MaizeJinanChina
| | - Shuaifeng Geng
- National Key Facility for Crop Gene Resources and Genetic Improvement, Institute of Crop ScienceChinese Academy of Agricultural SciencesBeijingChina
| | - Cheng Liu
- Crop Research InstituteShandong Academy of Agricultural SciencesJinanChina
- Ministry of Agriculture, Key Laboratory of Wheat Biology and Genetic Improvement on North Yellow and Huai River ValleyJinanChina
- National Engineering Research Center for Wheat and MaizeJinanChina
| | - Yanxiang Lin
- Crop Research InstituteShandong Academy of Agricultural SciencesJinanChina
- Ministry of Agriculture, Key Laboratory of Wheat Biology and Genetic Improvement on North Yellow and Huai River ValleyJinanChina
- National Engineering Research Center for Wheat and MaizeJinanChina
| | - Yulian Li
- Crop Research InstituteShandong Academy of Agricultural SciencesJinanChina
- Ministry of Agriculture, Key Laboratory of Wheat Biology and Genetic Improvement on North Yellow and Huai River ValleyJinanChina
- National Engineering Research Center for Wheat and MaizeJinanChina
| | - Genying Li
- Crop Research InstituteShandong Academy of Agricultural SciencesJinanChina
- Ministry of Agriculture, Key Laboratory of Wheat Biology and Genetic Improvement on North Yellow and Huai River ValleyJinanChina
- National Engineering Research Center for Wheat and MaizeJinanChina
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Cheng Y, Liang C, Qiu Z, Zhou S, Liu J, Yang Y, Wang R, Yin J, Ma C, Cui Z, Song J, Li D. Jasmonic acid negatively regulates branch growth in pear. Front Plant Sci 2023; 14:1105521. [PMID: 36824194 PMCID: PMC9941643 DOI: 10.3389/fpls.2023.1105521] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Accepted: 01/16/2023] [Indexed: 06/18/2023]
Abstract
The quality of seedlings is an important factor for development of the pear industry. A strong seedling with few branches and suitable internodes is ideal material as a rootstock for grafting and breeding. Several branching mutants of pear rootstocks were identified previously. In the present study, 'QAU-D03' (Pyrus communis L.) and it's mutants were used to explore the mechanism that affects branch formation by conducting phenotypic trait assessment, hormone content analysis, and transcriptome analysis. The mutant plant (MP) showed fewer branches, shorter 1-year-old shoots, and longer petiole length, compared to original plants (OP), i.e., wild type. Endogenous hormone analysis revealed that auxin, cytokinin, and jasmonic acid contents in the stem tips of MP were significantly higher than those of the original plants. In particular, the jasmonic acid content of the MP was 1.8 times higher than that of the original plants. Transcriptome analysis revealed that PcCOI1, which is a transcriptional regulatory gene downstream of the jasmonic acid signaling pathway, was expressed more highly in the MP than in the original plants, whereas the expression levels of PcJAZ and PcMYC were reduced in the MP compared with that of the original plants. In response to treatment with exogenous methyl jasmonate, the original plants phenotype was consistent with that of the MP in developing less branches. These results indicate that jasmonic acid negatively regulates branch growth of pear trees and that jasmonic acid downstream regulatory genes play a crucial role in regulating branching.
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Affiliation(s)
- Yuanyuan Cheng
- Qingdao Key Laboratory of Genetic Improvement and Breeding in Horticultural Plants, Engineering Laboratory of Genetic Improvement of Horticultural Crops of Shandong Province, College of Horticulture, Qingdao Agricultural University, Qingdao, China
| | - Chenglin Liang
- Haidu College, Qingdao Agricultural University, Laiyang, China
| | - Zhiyun Qiu
- Qingdao Key Laboratory of Genetic Improvement and Breeding in Horticultural Plants, Engineering Laboratory of Genetic Improvement of Horticultural Crops of Shandong Province, College of Horticulture, Qingdao Agricultural University, Qingdao, China
| | - Siqi Zhou
- Qingdao Key Laboratory of Genetic Improvement and Breeding in Horticultural Plants, Engineering Laboratory of Genetic Improvement of Horticultural Crops of Shandong Province, College of Horticulture, Qingdao Agricultural University, Qingdao, China
| | - Jianlong Liu
- Qingdao Key Laboratory of Genetic Improvement and Breeding in Horticultural Plants, Engineering Laboratory of Genetic Improvement of Horticultural Crops of Shandong Province, College of Horticulture, Qingdao Agricultural University, Qingdao, China
| | - Yingjie Yang
- Qingdao Key Laboratory of Genetic Improvement and Breeding in Horticultural Plants, Engineering Laboratory of Genetic Improvement of Horticultural Crops of Shandong Province, College of Horticulture, Qingdao Agricultural University, Qingdao, China
| | - Ran Wang
- Qingdao Key Laboratory of Genetic Improvement and Breeding in Horticultural Plants, Engineering Laboratory of Genetic Improvement of Horticultural Crops of Shandong Province, College of Horticulture, Qingdao Agricultural University, Qingdao, China
| | - Jie Yin
- Qingdao Key Laboratory of Genetic Improvement and Breeding in Horticultural Plants, Engineering Laboratory of Genetic Improvement of Horticultural Crops of Shandong Province, College of Horticulture, Qingdao Agricultural University, Qingdao, China
| | - Chunhui Ma
- Qingdao Key Laboratory of Genetic Improvement and Breeding in Horticultural Plants, Engineering Laboratory of Genetic Improvement of Horticultural Crops of Shandong Province, College of Horticulture, Qingdao Agricultural University, Qingdao, China
| | - Zhenhua Cui
- Qingdao Key Laboratory of Genetic Improvement and Breeding in Horticultural Plants, Engineering Laboratory of Genetic Improvement of Horticultural Crops of Shandong Province, College of Horticulture, Qingdao Agricultural University, Qingdao, China
| | - Jiankun Song
- Qingdao Key Laboratory of Genetic Improvement and Breeding in Horticultural Plants, Engineering Laboratory of Genetic Improvement of Horticultural Crops of Shandong Province, College of Horticulture, Qingdao Agricultural University, Qingdao, China
| | - Dingli Li
- Qingdao Key Laboratory of Genetic Improvement and Breeding in Horticultural Plants, Engineering Laboratory of Genetic Improvement of Horticultural Crops of Shandong Province, College of Horticulture, Qingdao Agricultural University, Qingdao, China
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Chun Y, Kumar A, Li X. Genetic and molecular pathways controlling rice inflorescence architecture. Front Plant Sci 2022; 13:1010138. [PMID: 36247571 PMCID: PMC9554555 DOI: 10.3389/fpls.2022.1010138] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/02/2022] [Accepted: 09/13/2022] [Indexed: 06/16/2023]
Abstract
Rice inflorescence is one of the major organs in determining grain yield. The genetic and molecular regulation on rice inflorescence architecture has been well investigated over the past years. In the present review, we described genes regulating rice inflorescence architecture based on their roles in meristem activity maintenance, meristem identity conversion and branch elongation. We also introduced the emerging regulatory pathways of phytohormones involved in rice inflorescence development. These studies show the intricacies and challenges of manipulating inflorescence architecture for rice yield improvement.
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Affiliation(s)
- Yan Chun
- National Key Facility for Crop Gene Resources and Genetic Improvement, Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Ashmit Kumar
- National Key Facility for Crop Gene Resources and Genetic Improvement, Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, China
- College of Agriculture, Fisheries and Forestry, Fiji National University, Nausori, Fiji
| | - Xueyong Li
- National Key Facility for Crop Gene Resources and Genetic Improvement, Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, China
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Wang H, Han X, Fu X, Sun X, Chen H, Wei X, Cui S, Liu Y, Guo W, Li X, Xing J, Zhang Y. Overexpression of TaLBD16-4D alters plant architecture and heading date in transgenic wheat. Front Plant Sci 2022; 13:911993. [PMID: 36212357 PMCID: PMC9533090 DOI: 10.3389/fpls.2022.911993] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/03/2022] [Accepted: 09/02/2022] [Indexed: 06/16/2023]
Abstract
Lateral organ boundaries domain (LBD) proteins, a class of plant-specific transcription factors with a special domain of lateral organ boundaries (LOB), play essential roles in plant growth and development. However, there is little known about the functions of these genes in wheat to date. Our previous study demonstrated that TaLBD16-4D is conducive to increasing lateral root number in wheat. In the present work, we further examined important agronomical traits of the aerial part of transgenic wheat overexpressing TaLBD16-4D. Interestingly, it was revealed that overexpressing TaLBD16-4D could lead to early heading and multiple alterations of plant architecture, including decreased plant height, increased flag leaf size and stem diameter, reduced spike length and tillering number, improved spike density and grain width, and decreased grain length. Moreover, auxin-responsive experiments demonstrated that the expression of TaLBD16-4D in wild-type (WT) wheat plants showed a significant upregulation through 2,4-D treatment. TaLBD16-4D-overexpression lines displayed a hyposensitivity to 2,4-D treatment and reduced shoot gravitropic response. The expressions of a set of auxin-responsive genes were markedly different between WT and transgenic plants. In addition, overexpressing TaLBD16-4D affected the transcript levels of flowering-related genes (TaGI, TaCO1, TaHd1, TaVRN1, TaVRN2, and TaFT1). Notably, the expression of TaGI, TaCO1, TaHd1, TaVRN1, and TaFT1 displayed significant upregulation under IAA treatment. Collectively, our observations indicated that overexpressing TaLBD16-4D could affect aerial architecture and heading time possibly though participating in the auxin pathway.
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Affiliation(s)
- Huifang Wang
- Shandong Provincial Key Laboratory of Dryland Farming Technology, Qingdao Agricultural University, Qingdao, China
| | - Xiaofan Han
- Shandong Provincial Key Laboratory of Dryland Farming Technology, Qingdao Agricultural University, Qingdao, China
| | - Xiaofeng Fu
- Shandong Provincial Key Laboratory of Dryland Farming Technology, Qingdao Agricultural University, Qingdao, China
| | - Xinling Sun
- Shandong Provincial Key Laboratory of Dryland Farming Technology, Qingdao Agricultural University, Qingdao, China
| | - Hailong Chen
- Shandong Provincial Key Laboratory of Dryland Farming Technology, Qingdao Agricultural University, Qingdao, China
| | - Xirui Wei
- Shandong Provincial Key Laboratory of Dryland Farming Technology, Qingdao Agricultural University, Qingdao, China
| | - Shubin Cui
- State Key Laboratory for Agrobiotechnology, Key Laboratory of Crop Heterosis Utilization (MOE), Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing, China
| | - Yiguo Liu
- Shandong Provincial Key Laboratory of Dryland Farming Technology, Qingdao Agricultural University, Qingdao, China
| | - Weiwei Guo
- Shandong Provincial Key Laboratory of Dryland Farming Technology, Qingdao Agricultural University, Qingdao, China
| | - Ximei Li
- Shandong Provincial Key Laboratory of Dryland Farming Technology, Qingdao Agricultural University, Qingdao, China
| | - Jiewen Xing
- State Key Laboratory for Agrobiotechnology, Key Laboratory of Crop Heterosis Utilization (MOE), Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing, China
| | - Yumei Zhang
- Shandong Provincial Key Laboratory of Dryland Farming Technology, Qingdao Agricultural University, Qingdao, China
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Ye Q, Meng X, Chen H, Wu J, Zheng L, Shen C, Guo D, Zhao Y, Liu J, Xue Q, Dong J, Wang T. Construction of genic male sterility system by CRISPR/Cas9 editing from model legume to alfalfa. Plant Biotechnol J 2022; 20:613-615. [PMID: 34962045 PMCID: PMC8989503 DOI: 10.1111/pbi.13770] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/12/2021] [Revised: 12/14/2021] [Accepted: 12/21/2021] [Indexed: 06/14/2023]
Affiliation(s)
- Qinyi Ye
- State Key Laboratory of AgrobiotechnologyCollege of Biological SciencesChina Agricultural UniversityBeijingChina
| | - Xiangzhao Meng
- State Key Laboratory of AgrobiotechnologyCollege of Biological SciencesChina Agricultural UniversityBeijingChina
| | - Hong Chen
- State Key Laboratory of AgrobiotechnologyCollege of Biological SciencesChina Agricultural UniversityBeijingChina
| | - Jiale Wu
- State Key Laboratory of AgrobiotechnologyCollege of Biological SciencesChina Agricultural UniversityBeijingChina
| | - Lihua Zheng
- State Key Laboratory of AgrobiotechnologyCollege of Biological SciencesChina Agricultural UniversityBeijingChina
| | - Chen Shen
- State Key Laboratory of AgrobiotechnologyCollege of Biological SciencesChina Agricultural UniversityBeijingChina
| | - Da Guo
- State Key Laboratory of AgrobiotechnologyCollege of Biological SciencesChina Agricultural UniversityBeijingChina
| | - Yafei Zhao
- State Key Laboratory of AgrobiotechnologyCollege of Biological SciencesChina Agricultural UniversityBeijingChina
| | - Jinling Liu
- State Key Laboratory of AgrobiotechnologyCollege of Biological SciencesChina Agricultural UniversityBeijingChina
| | - Qixia Xue
- State Key Laboratory of AgrobiotechnologyCollege of Biological SciencesChina Agricultural UniversityBeijingChina
| | - Jiangli Dong
- State Key Laboratory of AgrobiotechnologyCollege of Biological SciencesChina Agricultural UniversityBeijingChina
| | - Tao Wang
- State Key Laboratory of AgrobiotechnologyCollege of Biological SciencesChina Agricultural UniversityBeijingChina
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Li T, Shi Y, Zhu B, Zhang T, Feng Z, Wang X, Li X, You C. Genome-Wide Identification of Apple Atypical bHLH Subfamily PRE Members and Functional Characterization of MdPRE4.3 in Response to Abiotic Stress. Front Genet 2022; 13:846559. [PMID: 35401662 PMCID: PMC8987198 DOI: 10.3389/fgene.2022.846559] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2021] [Accepted: 02/25/2022] [Indexed: 11/29/2022] Open
Abstract
Paclobutrazol Resistance (PRE) genes encode atypical basic helix–loop–helix (bHLH) transcription factor family. Typical bHLH proteins contain a bifunctional structure with a basic region involved in DNA binding and an adjacent helix–loop–helix domain involved in protein–protein interaction. PRE members lack the basic region but retain the HLH domain, which interacts with other typical bHLH proteins to suppress or enhance their DNA-binding activity. PRE proteins are involved in phytohormone responses, light signal transduction, and fruit pigment accumulation. However, apple (Malus domestica) PRE protein functions have not been studied. In this study, nine MdPRE genes were identified from the apple GDDH13 v1.1 reference genome and were mapped to seven chromosomes. The cis-acting element analysis revealed that MdPRE promoters possessed various elements related to hormones, light, and stress responses. Expression pattern analysis showed that MdPRE genes have different tissue expression profiles. Hormonal and abiotic stress treatments can induce the expression of several MdPRE genes. Moreover, we provide molecular and genetic evidence showing that MdPRE4.3 increases the apple’s sensitivity to NaCl, abscisic acid (ABA), and indoleacetic acid (IAA) and improves tolerance to brassinosteroids (BR); however, it does not affect the apple’s response to gibberellin (GA). Finally, the protein interaction network among the MdPRES proteins was predicted, which could help us elucidate the molecular and biological functions of atypical bHLH transcription factors in the apple.
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Affiliation(s)
| | | | | | | | | | | | - Xiuming Li
- *Correspondence: Xiuming Li, ; Chunxiang You,
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