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Chen C, Zhang Z, Lei Y, Chen W, Zhang Z, Dai H. The transcription factor MdERF023 negatively regulates salt tolerance by modulating ABA signaling and Na +/H + transport in apple. PLANT CELL REPORTS 2024; 43:187. [PMID: 38958739 DOI: 10.1007/s00299-024-03272-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/06/2024] [Accepted: 06/24/2024] [Indexed: 07/04/2024]
Abstract
KEY MESSAGE MdERF023 is a transcription factor that can reduce salt tolerance by inhibiting ABA signaling and Na+/H+ homeostasis. Salt stress is one of the principal environmental stresses limiting the growth and productivity of apple (Malus × domestica). The APETALA2/ethylene response factor (AP2/ERF) family plays key roles in plant growth and various stress responses; however, the regulatory mechanism involved has not been fully elucidated. In the present study, we identified an AP2/ERF transcription factor (TF), MdERF023, which plays a negative role in apple salt tolerance. Stable overexpression of MdERF023 in apple plants and calli significantly decreased salt tolerance. Biochemical and molecular analyses revealed that MdERF023 directly binds to the promoter of MdMYB44-like, a positive modulator of ABA signaling-mediated salt tolerance, and suppresses its transcription. In addition, MdERF023 downregulated the transcription of MdSOS2 and MdAKT1, thereby reducing the Na+ expulsion, K+ absorption, and salt tolerance of apple plants. Taken together, these results suggest that MdERF023 reduces apple salt tolerance by inhibiting ABA signaling and ion transport, and that it could be used as a potential target for breeding new varieties of salt-tolerant apple plants via genetic engineering.
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Affiliation(s)
- Cui Chen
- College of Horticulture, Shenyang Agricultural University, Shenyang, 110866, China
| | - Zhen Zhang
- College of Horticulture, Shenyang Agricultural University, Shenyang, 110866, China
| | - Yingying Lei
- College of Horticulture, Shenyang Agricultural University, Shenyang, 110866, China
| | - Wenjun Chen
- College of Horticulture, Shenyang Agricultural University, Shenyang, 110866, China
| | - Zhihong Zhang
- College of Horticulture, Shenyang Agricultural University, Shenyang, 110866, China
| | - Hongyan Dai
- College of Horticulture, Shenyang Agricultural University, Shenyang, 110866, China.
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Geng S, Gao W, Li S, Chen Q, Jiao Y, Zhao J, Wang Y, Wang T, Qu Y, Chen Q. Rapidly mining candidate cotton drought resistance genes based on key indicators of drought resistance. BMC PLANT BIOLOGY 2024; 24:129. [PMID: 38383284 PMCID: PMC10880307 DOI: 10.1186/s12870-024-04801-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/20/2023] [Accepted: 02/05/2024] [Indexed: 02/23/2024]
Abstract
BACKGROUND Focusing on key indicators of drought resistance is highly important for quickly mining candidate genes related to drought resistance in cotton. RESULTS In the present study, drought resistance was identified in drought resistance-related RIL populations during the flowering and boll stages, and multiple traits were evaluated; these traits included three key indicators: plant height (PH), single boll weight (SBW) and transpiration rate (Tr). Based on these three key indicators, three groups of extreme mixing pools were constructed for BSA-seq. Based on the mapping interval of each trait, a total of 6.27 Mb QTL intervals were selected on chromosomes A13 (3.2 Mb), A10 (2.45 Mb) and A07 (0.62 Mb) as the focus of this study. Based on the annotation information and qRT‒PCR analysis, three key genes that may be involved in the drought stress response of cotton were screened: GhF6'H1, Gh3AT1 and GhPER55. qRT‒PCR analysis of parental and extreme germplasm materials revealed that the expression of these genes changed significantly under drought stress. Cotton VIGS experiments verified the important impact of key genes on cotton drought resistance. CONCLUSIONS This study focused on the key indicators of drought resistance, laying the foundation for the rapid mining of drought-resistant candidate genes in cotton and providing genetic resources for directed molecular breeding of drought resistance in cotton.
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Affiliation(s)
- Shiwei Geng
- 1Engineering Research Centre of Cotton, Ministry of Education/College of Agriculture, Xinjiang Agricultural University, 311 Nongda East Road, Urumqi, 830052, China
| | - Wenju Gao
- 1Engineering Research Centre of Cotton, Ministry of Education/College of Agriculture, Xinjiang Agricultural University, 311 Nongda East Road, Urumqi, 830052, China
| | - Shengmei Li
- 1Engineering Research Centre of Cotton, Ministry of Education/College of Agriculture, Xinjiang Agricultural University, 311 Nongda East Road, Urumqi, 830052, China
| | - Qin Chen
- 1Engineering Research Centre of Cotton, Ministry of Education/College of Agriculture, Xinjiang Agricultural University, 311 Nongda East Road, Urumqi, 830052, China
| | - Yang Jiao
- 1Engineering Research Centre of Cotton, Ministry of Education/College of Agriculture, Xinjiang Agricultural University, 311 Nongda East Road, Urumqi, 830052, China
| | - Jieyin Zhao
- 1Engineering Research Centre of Cotton, Ministry of Education/College of Agriculture, Xinjiang Agricultural University, 311 Nongda East Road, Urumqi, 830052, China
| | - Yuxiang Wang
- 1Engineering Research Centre of Cotton, Ministry of Education/College of Agriculture, Xinjiang Agricultural University, 311 Nongda East Road, Urumqi, 830052, China
| | - TingWei Wang
- 1Engineering Research Centre of Cotton, Ministry of Education/College of Agriculture, Xinjiang Agricultural University, 311 Nongda East Road, Urumqi, 830052, China
| | - Yanying Qu
- 1Engineering Research Centre of Cotton, Ministry of Education/College of Agriculture, Xinjiang Agricultural University, 311 Nongda East Road, Urumqi, 830052, China
| | - Quanjia Chen
- 1Engineering Research Centre of Cotton, Ministry of Education/College of Agriculture, Xinjiang Agricultural University, 311 Nongda East Road, Urumqi, 830052, China.
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Zhao YL, Li Y, Cao K, Yao JL, Bie HL, Khan IA, Fang WC, Chen CW, Wang XW, Wu JL, Guo WW, Wang LR. MADS-box protein PpDAM6 regulates chilling requirement-mediated dormancy and bud break in peach. PLANT PHYSIOLOGY 2023; 193:448-465. [PMID: 37217835 PMCID: PMC10469376 DOI: 10.1093/plphys/kiad291] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/16/2022] [Revised: 04/11/2023] [Accepted: 04/18/2023] [Indexed: 05/24/2023]
Abstract
Bud dormancy is crucial for winter survival and is characterized by the inability of the bud meristem to respond to growth-promotive signals before the chilling requirement (CR) is met. However, our understanding of the genetic mechanism regulating CR and bud dormancy remains limited. This study identified PpDAM6 (DORMANCY-ASSOCIATED MADS-box) as a key gene for CR using a genome-wide association study analysis based on structural variations in 345 peach (Prunus persica (L.) Batsch) accessions. The function of PpDAM6 in CR regulation was demonstrated by transiently silencing the gene in peach buds and stably overexpressing the gene in transgenic apple (Malus × domestica) plants. The results showed an evolutionarily conserved function of PpDAM6 in regulating bud dormancy release, followed by vegetative growth and flowering, in peach and apple. The 30-bp deletion in the PpDAM6 promoter was substantially associated with reducing PpDAM6 expression in low-CR accessions. A PCR marker based on the 30-bp indel was developed to distinguish peach plants with non-low and low CR. Modification of the H3K27me3 marker at the PpDAM6 locus showed no apparent change across the dormancy process in low- and non-low- CR cultivars. Additionally, H3K27me3 modification occurred earlier in low-CR cultivars on a genome-wide scale. PpDAM6 could mediate cell-cell communication by inducing the expression of the downstream genes PpNCED1 (9-cis-epoxycarotenoid dioxygenase 1), encoding a key enzyme for ABA biosynthesis, and CALS (CALLOSE SYNTHASE), encoding callose synthase. We shed light on a gene regulatory network formed by PpDAM6-containing complexes that mediate CR underlying dormancy and bud break in peach. A better understanding of the genetic basis for natural variations of CR can help breeders develop cultivars with different CR for growing in different geographical regions.
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Affiliation(s)
- Ya-Lin Zhao
- Zhengzhou Fruit Research Institute, Chinese Academy of Agricultural Sciences, Zhengzhou 450000, China
- College of Horticulture and Forestry Science, Huazhong Agricultural University, Wuhan 430070, China
| | - Yong Li
- Zhengzhou Fruit Research Institute, Chinese Academy of Agricultural Sciences, Zhengzhou 450000, China
- National Horticultural Germplasm Resources Center, Chinese Academy of Agricultural Sciences, Zhengzhou 450000, China
| | - Ke Cao
- Zhengzhou Fruit Research Institute, Chinese Academy of Agricultural Sciences, Zhengzhou 450000, China
- National Horticultural Germplasm Resources Center, Chinese Academy of Agricultural Sciences, Zhengzhou 450000, China
| | - Jia-Long Yao
- Zhengzhou Fruit Research Institute, Chinese Academy of Agricultural Sciences, Zhengzhou 450000, China
- The New Zealand Institute for Plant and Food Research Limited, Private Bag 92169, Auckland 1142, New Zealand
| | - Hang-Ling Bie
- Zhengzhou Fruit Research Institute, Chinese Academy of Agricultural Sciences, Zhengzhou 450000, China
- College of Horticulture and Forestry Science, Huazhong Agricultural University, Wuhan 430070, China
| | - Irshad Ahmad Khan
- Zhengzhou Fruit Research Institute, Chinese Academy of Agricultural Sciences, Zhengzhou 450000, China
| | - Wei-Chao Fang
- Zhengzhou Fruit Research Institute, Chinese Academy of Agricultural Sciences, Zhengzhou 450000, China
- National Horticultural Germplasm Resources Center, Chinese Academy of Agricultural Sciences, Zhengzhou 450000, China
| | - Chang-Wen Chen
- Zhengzhou Fruit Research Institute, Chinese Academy of Agricultural Sciences, Zhengzhou 450000, China
- National Horticultural Germplasm Resources Center, Chinese Academy of Agricultural Sciences, Zhengzhou 450000, China
| | - Xin-Wei Wang
- Zhengzhou Fruit Research Institute, Chinese Academy of Agricultural Sciences, Zhengzhou 450000, China
- National Horticultural Germplasm Resources Center, Chinese Academy of Agricultural Sciences, Zhengzhou 450000, China
| | - Jin-Long Wu
- Zhengzhou Fruit Research Institute, Chinese Academy of Agricultural Sciences, Zhengzhou 450000, China
- National Horticultural Germplasm Resources Center, Chinese Academy of Agricultural Sciences, Zhengzhou 450000, China
| | - Wen-Wu Guo
- College of Horticulture and Forestry Science, Huazhong Agricultural University, Wuhan 430070, China
| | - Li-Rong Wang
- Zhengzhou Fruit Research Institute, Chinese Academy of Agricultural Sciences, Zhengzhou 450000, China
- National Horticultural Germplasm Resources Center, Chinese Academy of Agricultural Sciences, Zhengzhou 450000, China
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Guo J, Zhao Y, Chu Y, Li Y, Song Y, Pan Q, Qiu Z, Yu B, Zhu Y. Screening Candidate Genes at the Co Locus Conferring to the Columnar Growth Habit in Apple ( Malus × Domestica Borkh.). Genes (Basel) 2023; 14:genes14050964. [PMID: 37239324 DOI: 10.3390/genes14050964] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Accepted: 04/11/2023] [Indexed: 05/28/2023] Open
Abstract
The columnar growth trait of apple (Malus × domestica Borkh.) is genetically controlled by the Columnar (Co) locus on 10 chromosomes, including several candidate genes. Except for MdCo31, other candidate genes at the Co locus are less elucidated. In this study, a strategy of step-by-step screening was adopted to select 11 candidate genes by experimental cloning, transient expression, and genetic transformation. There existed several SNPs in four genes by sequence alignment in columnar and non-columnar apples. Two genes were detected in the nucleus and three genes in the cell membrane, other genes were located in multiple cellular structures by subcellular location. Ectopic expression demonstrated that more branching occurred in MdCo38-OE by upregulating NtPIN1 and NtGA2ox and enlarged leaves in MdCo41-OE tobaccos by upregulating NtCCDs. Transcripts of MdCo38 and MdCo41 were associated with the Co genotypes in apples. The results indicate that MdCo38 and MdCo41 are involved in the columnar growth phenotype in apple, probably through altering polar auxin transport, active gibberellin levels, and strigolactone biosynthesis.
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Affiliation(s)
- Jing Guo
- Department of Pomology, College of Horticulture, China Agricultural University, Yuanmingyuan West Road No. 2, Haidian District, Beijing 100193, China
| | - Yuan Zhao
- Department of Pomology, College of Horticulture, China Agricultural University, Yuanmingyuan West Road No. 2, Haidian District, Beijing 100193, China
| | - Yu Chu
- Department of Pomology, College of Horticulture, China Agricultural University, Yuanmingyuan West Road No. 2, Haidian District, Beijing 100193, China
| | - Yuru Li
- Department of Pomology, College of Horticulture, China Agricultural University, Yuanmingyuan West Road No. 2, Haidian District, Beijing 100193, China
| | - Yuqi Song
- Department of Pomology, College of Horticulture, China Agricultural University, Yuanmingyuan West Road No. 2, Haidian District, Beijing 100193, China
| | - Qi Pan
- Department of Pomology, College of Horticulture, China Agricultural University, Yuanmingyuan West Road No. 2, Haidian District, Beijing 100193, China
| | - Zhannan Qiu
- Department of Pomology, College of Horticulture, China Agricultural University, Yuanmingyuan West Road No. 2, Haidian District, Beijing 100193, China
| | - Boyang Yu
- Department of Pomology, College of Horticulture, China Agricultural University, Yuanmingyuan West Road No. 2, Haidian District, Beijing 100193, China
| | - Yuandi Zhu
- Department of Pomology, College of Horticulture, China Agricultural University, Yuanmingyuan West Road No. 2, Haidian District, Beijing 100193, China
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5
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Qian Z, Rao X, Zhang R, Gu S, Shen Q, Wu H, Lv S, Xie L, Li X, Wang X, Chen S, Liu L, He L, Li F. Genome-Wide Identification, Evolution, and Expression Analyses of AP2/ERF Family Transcription Factors in Erianthus fulvus. Int J Mol Sci 2023; 24:ijms24087102. [PMID: 37108264 PMCID: PMC10139229 DOI: 10.3390/ijms24087102] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Revised: 03/29/2023] [Accepted: 04/05/2023] [Indexed: 04/29/2023] Open
Abstract
The AP2/ERF transcription factor family is one of the most important gene families in plants and plays a vital role in plant abiotic stress responses. Although Erianthus fulvus is very important in the genetic improvement of sugarcane, there are few studies concerning AP2/ERF genes in E. fulvus. Here, we identified 145 AP2/ERF genes in the E. fulvus genome. Phylogenetic analysis classified them into five subfamilies. Evolutionary analysis showed that tandem and segmental duplication contributed to the expansion of the EfAP2/ERF family. Protein interaction analysis showed that twenty-eight EfAP2/ERF proteins and five other proteins had potential interaction relationships. Multiple cis-acting elements present in the EfAP2/ERF promoter were related to abiotic stress response, suggesting that EfAP2/ERF may contribute to adaptation to environmental changes. Transcriptomic and RT-qPCR analyses revealed that EfDREB10, EfDREB11, EfDREB39, EfDREB42, EfDREB44, EfERF43, and EfAP2-13 responded to cold stress, EfDREB5 and EfDREB42 responded to drought stress, and EfDREB5, EfDREB11, EfDREB39, EfERF43, and EfAP2-13 responded to ABA treatment. These results will be helpful for better understanding the molecular features and biological role of the E. fulvus AP2/ERF genes and lay a foundation for further research on the function of EfAP2/ERF genes and the regulatory mechanism of the abiotic stress response.
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Affiliation(s)
- Zhenfeng Qian
- College of Agronomy and Biotechnology, Yunnan Agricultural University, Kunming 650201, China
| | - Xibing Rao
- College of Agronomy and Biotechnology, Yunnan Agricultural University, Kunming 650201, China
| | - Rongqiong Zhang
- College of Agronomy and Biotechnology, Yunnan Agricultural University, Kunming 650201, China
| | - Shujie Gu
- Sugarcane Research Institute, Yunnan Agricultural University, Kunming 650201, China
| | - Qingqing Shen
- College of Agronomy and Biotechnology, Yunnan Agricultural University, Kunming 650201, China
| | - Huaying Wu
- College of Agronomy and Biotechnology, Yunnan Agricultural University, Kunming 650201, China
| | - Shaozhi Lv
- College of Agronomy and Biotechnology, Yunnan Agricultural University, Kunming 650201, China
| | - Linyan Xie
- College of Agronomy and Biotechnology, Yunnan Agricultural University, Kunming 650201, China
| | - Xianli Li
- College of Agronomy and Biotechnology, Yunnan Agricultural University, Kunming 650201, China
| | - Xianhong Wang
- College of Agronomy and Biotechnology, Yunnan Agricultural University, Kunming 650201, China
| | - Shuying Chen
- College of Agronomy and Biotechnology, Yunnan Agricultural University, Kunming 650201, China
| | - Lufeng Liu
- Sugarcane Research Institute, Yunnan Agricultural University, Kunming 650201, China
| | - Lilian He
- College of Agronomy and Biotechnology, Yunnan Agricultural University, Kunming 650201, China
- Sugarcane Research Institute, Yunnan Agricultural University, Kunming 650201, China
| | - Fusheng Li
- College of Agronomy and Biotechnology, Yunnan Agricultural University, Kunming 650201, China
- Sugarcane Research Institute, Yunnan Agricultural University, Kunming 650201, China
- The Key Laboratory for Crop Production and Smart Agriculture of Yunnan Province, Kunming 650201, China
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Li WF, Ma ZH, Guo ZG, Zuo CW, Chu MY, Mao J, Chen BH. Insights on the stem elongation of spur-type bud sport mutant of 'Red Delicious' apple. PLANTA 2023; 257:48. [PMID: 36740622 DOI: 10.1007/s00425-023-04086-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/21/2022] [Accepted: 01/31/2023] [Indexed: 06/18/2023]
Abstract
The decreased capacity of auxin-, CTK-, and BR-mediated cell division and cell enlargement pathways, combined with the enhanced capacity of GA and ETH-, JA-, ABA-, SA-mediated stress-resistant pathways were presumed to be the crucial reasons for the formation of spur-type 'Red Delicious' mutants. Vallee Spur', which exhibit short internodes and compact tree shape, is the fourth generation of the spur-type bud sport mutant of 'Red Delicious'. However, the underlying molecular mechanism of these properties remains unclear. Here, comparative phenotypic, full-length transcriptome and phytohormone analyses were performed between 'Red Delicious' (NSP) and 'Vallee Spur' (SP). The new shoot internode length of NSP was ˃ 1.53-fold higher than that of the SP mutant. Cytological analysis showed that the stem cells of the SP mutant were smaller and more tightly arranged relative to the NSP. By Iso-Seq, a total of 1426 differentially expressed genes (DEGs) were detected, including 808 upregulated and 618 downregulated genes in new shoot apex with 2 leaves of the SP mutant. Gene expressions involved in auxin, cytokinin (CTK), and brassinosteroid (BR) signal transduction were mostly downregulated in the SP mutant, whereas those involved in gibberellin (GA), ethylene (ETH), jasmonate (JA), ABA, and salicylic acid (SA) signal transduction were mostly upregulated. The overall thermogram analysis of hormone levels in the shoot apex carrying two leaves detected by LC-MS/MS absolute quantification showed that the levels of IAA-Asp, IAA, iP7G, OPDA, and 6-deoxyCS were significantly upregulated in the SP mutant, while the remaining 28 hormones were significantly downregulated. It is speculated that the decreased capacity of auxin, CTK, and BR-mediated cell division and cell enlargement pathways is crucial for the formation of the SP mutant. GA and stress-resistant pathways of ETH, JA, ABA, and SA also play vital roles in stem elongation. These results highlight the involvement of phytohormones in the formation of stem elongation occurring in 'Red Delicious' spur-type bud sport mutants and provide information for exploring its biological mechanism.
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Affiliation(s)
- Wen-Fang Li
- College of Horticulture, Gansu Agricultural University, Lanzhou, 730070, China
| | - Zong-Huan Ma
- College of Horticulture, Gansu Agricultural University, Lanzhou, 730070, China
| | - Zhi-Gang Guo
- College of Bioengineering and Biotechnology, Tianshui Normal University, Tianshui, 741000, China
| | - Cun-Wu Zuo
- College of Horticulture, Gansu Agricultural University, Lanzhou, 730070, China
| | - Ming-Yu Chu
- College of Horticulture, Gansu Agricultural University, Lanzhou, 730070, China
| | - Juan Mao
- College of Horticulture, Gansu Agricultural University, Lanzhou, 730070, China
| | - Bai-Hong Chen
- College of Horticulture, Gansu Agricultural University, Lanzhou, 730070, China.
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7
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Rui L, Zhu ZQ, Yang YY, Wang DR, Liu HF, Zheng PF, Li HL, Liu GD, Liu RX, Wang X, Zhang S, You CX. Functional characterization of MdERF113 in apple. PHYSIOLOGIA PLANTARUM 2023; 175:e13853. [PMID: 36628625 DOI: 10.1111/ppl.13853] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/27/2022] [Revised: 12/10/2022] [Accepted: 01/05/2023] [Indexed: 06/17/2023]
Abstract
The AP2/ERF family is an important class of transcription factors involved in plant growth and various biological processes. One of the AP2/ERF transcription factors, RAP2.6L, participates in various stresses responses. However, the function of RAP2.6L is largely unknown in apples (Malus domestica). In this study, an apple gene homologous to Arabidopsis AtRAP2.6L, MdERF113, was analyzed by bioinformatic characterization, gene expression analysis and subcellular localization assessment. MdERF113 was highly expressed in the sarcocarp and was responsive to hormonal signals and abiotic stresses. MdERF113-overexpression apple calli were less sensitive to low temperature, drought, salinity, and abscisic acid than wild-type. Subcellular localization revealed that MdERF113 was a nuclear-localized transcription factor, and yeast experiments confirmed that MdERF113 has no autonomous activation activity. Overall, this study indicated that MdERF113 plays a role in regulating plant growth under abiotic conditions.
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Affiliation(s)
- Lin Rui
- National Key Laboratory of Crop Biology, National Research Center for Apple Engineering and Technology, Shandong Collaborative Innovation Center of Fruit & Vegetable Quality and Efficient Production, College of Horticulture Science and Engineering, Shandong Agricultural University, Tai'an, Shandong, China
| | - Zi-Qi Zhu
- Shandong Provincial Research Center of Demonstration Engineering Technology for Urban and Rural Landscape, College of Forestry, Shandong Agricultural University, Tai'an, Shandong, China
| | - Yu-Ying Yang
- National Key Laboratory of Crop Biology, National Research Center for Apple Engineering and Technology, Shandong Collaborative Innovation Center of Fruit & Vegetable Quality and Efficient Production, College of Horticulture Science and Engineering, Shandong Agricultural University, Tai'an, Shandong, China
| | - Da-Ru Wang
- National Key Laboratory of Crop Biology, National Research Center for Apple Engineering and Technology, Shandong Collaborative Innovation Center of Fruit & Vegetable Quality and Efficient Production, College of Horticulture Science and Engineering, Shandong Agricultural University, Tai'an, Shandong, China
| | - Hao-Feng Liu
- National Key Laboratory of Crop Biology, National Research Center for Apple Engineering and Technology, Shandong Collaborative Innovation Center of Fruit & Vegetable Quality and Efficient Production, College of Horticulture Science and Engineering, Shandong Agricultural University, Tai'an, Shandong, China
| | - Peng-Fei Zheng
- National Key Laboratory of Crop Biology, National Research Center for Apple Engineering and Technology, Shandong Collaborative Innovation Center of Fruit & Vegetable Quality and Efficient Production, College of Horticulture Science and Engineering, Shandong Agricultural University, Tai'an, Shandong, China
| | - Hong-Liang Li
- National Key Laboratory of Crop Biology, National Research Center for Apple Engineering and Technology, Shandong Collaborative Innovation Center of Fruit & Vegetable Quality and Efficient Production, College of Horticulture Science and Engineering, Shandong Agricultural University, Tai'an, Shandong, China
| | - Guo-Dong Liu
- National Key Laboratory of Crop Biology, National Research Center for Apple Engineering and Technology, Shandong Collaborative Innovation Center of Fruit & Vegetable Quality and Efficient Production, College of Horticulture Science and Engineering, Shandong Agricultural University, Tai'an, Shandong, China
| | - Ran-Xin Liu
- National Key Laboratory of Crop Biology, National Research Center for Apple Engineering and Technology, Shandong Collaborative Innovation Center of Fruit & Vegetable Quality and Efficient Production, College of Horticulture Science and Engineering, Shandong Agricultural University, Tai'an, Shandong, China
| | - Xiaofei Wang
- National Key Laboratory of Crop Biology, National Research Center for Apple Engineering and Technology, Shandong Collaborative Innovation Center of Fruit & Vegetable Quality and Efficient Production, College of Horticulture Science and Engineering, Shandong Agricultural University, Tai'an, Shandong, China
| | - Shuai Zhang
- Key Laboratory of Agricultural Film Application of Ministry of Agriculture and Rural Affairs, College of Chemistry and Material Science, Shandong Agricultural University, Tai'an, Shandong, China
| | - Chun-Xiang You
- National Key Laboratory of Crop Biology, National Research Center for Apple Engineering and Technology, Shandong Collaborative Innovation Center of Fruit & Vegetable Quality and Efficient Production, College of Horticulture Science and Engineering, Shandong Agricultural University, Tai'an, Shandong, China
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8
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He W, Xie R, Luo L, Chai J, Wang H, Wang Y, Chen Q, Wu Z, Yang S, Li M, Lin Y, Zhang Y, Luo Y, Zhang Y, Tang H, Gmitter FG, Wang X. Comparative Transcriptomic Analysis of Inarching Invigorating Rootstock onto Incompatible Grafts in Citrus. Int J Mol Sci 2022; 23:ijms232314523. [PMID: 36498848 PMCID: PMC9735857 DOI: 10.3390/ijms232314523] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2022] [Revised: 11/16/2022] [Accepted: 11/21/2022] [Indexed: 11/23/2022] Open
Abstract
Grafting is a technique that is widely used in citrus production. Graft incompatibility often occurs in the orchard. Inarching can effectively improve the vigor of incompatible grafts, but its mechanism remains poorly understood. Our previous studies investigated the scion-rootstock interaction of citrus and highlighted the role of hormonal balance and genes in abscisic acid biosynthesis regulation. To further elucidate the mechanism of inarched grafts rejuvenation, Hm/Pt combination (Citrus maxima (Burm.) Merrill cv. 'Hongmian miyou' grafted onto Poncirus trifoliata) were inarched with 'Pujiang Xiangcheng' (a novel citrus rootstock cultivar recently selected from wild Citrus junos populations), and comprehensive analysis was performed to compare the inarched grafts and controls. Compared with incompatible grafts, the results revealed that inarching could recover the leaf metabolism balance, including reducing starch content, increasing chlorophyll content and restoring the cell structure. Additionally, our results corroborated that hormonal balance and hormone-related genes played a central role in inarching compatibility. Furthermore, the roles of Hsf4, ERF1, NCED3 and PYL were highlighted, and a model for explaining inarched grafts recovery invigoration was proposed. This study shed light on the mechanism of inarching regulation tree vigor and offered deep insights into the scion-rootstock interaction in citrus.
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Affiliation(s)
- Wen He
- College of Horticulture, Sichuan Agricultural University, Chengdu 611130, China
- Institute of Pomology and Olericulture, Sichuan Agricultural University, Chengdu 611130, China
| | - Rui Xie
- College of Horticulture, Sichuan Agricultural University, Chengdu 611130, China
- Institute of Pomology and Olericulture, Sichuan Agricultural University, Chengdu 611130, China
| | - Liang Luo
- College of Horticulture, Sichuan Agricultural University, Chengdu 611130, China
- Institute of Pomology and Olericulture, Sichuan Agricultural University, Chengdu 611130, China
| | - Jiufeng Chai
- College of Horticulture, Sichuan Agricultural University, Chengdu 611130, China
- Institute of Pomology and Olericulture, Sichuan Agricultural University, Chengdu 611130, China
| | - Hao Wang
- College of Horticulture, Sichuan Agricultural University, Chengdu 611130, China
- Institute of Pomology and Olericulture, Sichuan Agricultural University, Chengdu 611130, China
| | - Yan Wang
- College of Horticulture, Sichuan Agricultural University, Chengdu 611130, China
- Institute of Pomology and Olericulture, Sichuan Agricultural University, Chengdu 611130, China
| | - Qing Chen
- College of Horticulture, Sichuan Agricultural University, Chengdu 611130, China
| | - Zhiwei Wu
- College of Horticulture, Sichuan Agricultural University, Chengdu 611130, China
- Institute of Pomology and Olericulture, Sichuan Agricultural University, Chengdu 611130, China
| | - Shaofeng Yang
- College of Horticulture, Sichuan Agricultural University, Chengdu 611130, China
- Institute of Pomology and Olericulture, Sichuan Agricultural University, Chengdu 611130, China
| | - Mengyao Li
- College of Horticulture, Sichuan Agricultural University, Chengdu 611130, China
| | - Yuanxiu Lin
- College of Horticulture, Sichuan Agricultural University, Chengdu 611130, China
- Institute of Pomology and Olericulture, Sichuan Agricultural University, Chengdu 611130, China
| | - Yunting Zhang
- College of Horticulture, Sichuan Agricultural University, Chengdu 611130, China
- Institute of Pomology and Olericulture, Sichuan Agricultural University, Chengdu 611130, China
| | - Ya Luo
- College of Horticulture, Sichuan Agricultural University, Chengdu 611130, China
| | - Yong Zhang
- College of Horticulture, Sichuan Agricultural University, Chengdu 611130, China
| | - Haoru Tang
- College of Horticulture, Sichuan Agricultural University, Chengdu 611130, China
- Institute of Pomology and Olericulture, Sichuan Agricultural University, Chengdu 611130, China
| | - Frederick G. Gmitter
- Citrus Research and Education Center, University of Florida, Lake Alfred, FL 33850, USA
| | - Xiaorong Wang
- College of Horticulture, Sichuan Agricultural University, Chengdu 611130, China
- Institute of Pomology and Olericulture, Sichuan Agricultural University, Chengdu 611130, China
- Correspondence:
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9
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Cui Y, Zhai Y, He J, Song M, Flaishman MA, Ma H. AP2/ERF genes associated with superfast fig ( Ficus carica L.) fruit ripening. FRONTIERS IN PLANT SCIENCE 2022; 13:1040796. [PMID: 36388580 PMCID: PMC9659990 DOI: 10.3389/fpls.2022.1040796] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/09/2022] [Accepted: 10/19/2022] [Indexed: 06/16/2023]
Abstract
Fig fruits have significant health value and are culturally important. Under suitable climatic conditions, fig fruits undergo a superfast ripening process, nearly doubling in size, weight, and sugar content over three days in parallel with a sharp decrease in firmness. In this study, 119 FcAP2/ERF genes were identified in the fig genome, namely 95 ERFs, 20 AP2s, three RAVs, and one soloist. Most of the ERF subfamily members (76) contained no introns, whereas the majority of the AP2 subfamily members had at least two introns each. Three previously published transcriptome datasets were mined to discover expression patterns, encompassing the fruit peel and flesh of the 'Purple Peel' cultivar at six developmental stages; the fruit receptacle and flesh of the 'Brown Turkey' cultivar after ethephon treatment; and the receptacle and flesh of parthenocarpic and pollinated fruits of the 'Brown Turkey' cultivar. Eighty-three FcAP2/ERFs (68 ERFs, 13 AP2s, one RAV, and one soloist) were expressed in the combined transcriptome dataset. Most FcAP2/ERFs were significantly downregulated (|log2(fold change) | ≥ 1 and p-adjust < 0.05) during both normal fruit development and ethephon-induced accelerated ripening, suggesting a repressive role of these genes in fruit ripening. Five significantly downregulated ERFs also had repression domains in the C-terminal. Seven FcAP2/ERFs were identified as differentially expressed during ripening in all three transcriptome datasets. These genes were strong candidates for future functional genetic studies to elucidate the major FcAP2/ERF regulators of the superfast fig fruit ripening process.
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Affiliation(s)
- Yuanyuan Cui
- Department of Fruit Tree Sciences, College of Horticulture, China Agricultural University, Beijing, China
- Peking University Institute of Advanced Agricultural Science, Shandong Laboratory for Advanced Agricultural Sciences, Weifang, China
| | - Yanlei Zhai
- Department of Fruit Tree Sciences, College of Horticulture, China Agricultural University, Beijing, China
| | - Jiajun He
- Department of Fruit Tree Sciences, College of Horticulture, China Agricultural University, Beijing, China
| | - Miaoyu Song
- Department of Fruit Tree Sciences, College of Horticulture, China Agricultural University, Beijing, China
| | - Moshe A. Flaishman
- Department of Fruit Tree Sciences, Agricultural Research Organization, The Volcani Center, Bet Dagan, Israel
| | - Huiqin Ma
- Department of Fruit Tree Sciences, College of Horticulture, China Agricultural University, Beijing, China
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Han T, Yu J, Zhuang J, Wang Z, Sun X, Zhang Y. The Characterization of Columnar Apple Gene MdCoL Promoter and Its Response to Abscisic Acid, Brassinosteroid and Gibberellic Acid. Int J Mol Sci 2022; 23:ijms231810781. [PMID: 36142696 PMCID: PMC9505010 DOI: 10.3390/ijms231810781] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2022] [Revised: 09/08/2022] [Accepted: 09/12/2022] [Indexed: 11/16/2022] Open
Abstract
Columnar apple was an important germplasm resource to develop compact cultivars for labor-saving cultivation and to study fruit tree architecture. MdCoL is a strong candidate gene for controlling the columnar phenotype in apple. In this study, a 2000 bp upstream region of MdCoL was cloned as a full-length promoter, named MdCoLp1. To gain a better understanding of the characterization of the MdCoL promoter, cis-acting elements and the binding sites of transcription factors were predicted and analyzed, and four binary expression vectors consisting of the GUS reporter gene under the control of the MdCoL promoter was transformed into Arabidopsis thaliana to analyze the response to abscisic acid (ABA), brassinosteroid (BR) and gibberellic acid (GA3) of MdCoL promoters. Multiple transcription factors involving TCP, BEL1 and BES1/BZR1 and other transcription factor (TF) binding sites were predicted on the promoter of MdCoL. Histochemical staining showed that both full-length and 5′ truncated promoters could initiate GUS expression. The GUS activity was the most in leaf and stem, and mainly concentrated in the fibrovascular tissue, followed by root, and the least activity was observed in silique and flower. In addition, MdCoL expression was mainly localized in the quiescent center (QC) and lateral root growing point of root tip and the vascular tissue of stem and leaf by in situ hybridization. The results of exogenous hormones treatment showed that ABA and BR could activate the activity of the MdCoL promoter, while GA3 had opposite effects. In columnar apple seedlings, ABA treatment could upregulate the expression of MdCoL, but GA3 and BR restrained the transcription level of MdCoL. These results provide the foundation for deciphering the regulatory network of hormones affecting MdCoL transcription.
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Affiliation(s)
- Tingting Han
- College of Horticulture, Qingdao Agricultural University, Qingdao 266109, China
| | - Jiahui Yu
- College of Horticulture, Qingdao Agricultural University, Qingdao 266109, China
| | - Jie Zhuang
- College of Horticulture, Qingdao Agricultural University, Qingdao 266109, China
| | - Ziyu Wang
- College of Horticulture, Qingdao Agricultural University, Qingdao 266109, China
| | - Xin Sun
- College of Horticulture, Qingdao Agricultural University, Qingdao 266109, China
| | - Yugang Zhang
- College of Horticulture, Qingdao Agricultural University, Qingdao 266109, China
- Engineering Laboratory of Genetic Improvement of Horticultural Crops of Shandong Province, Qingdao 266109, China
- Correspondence:
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Molecular Mechanisms Regulating the Columnar Tree Architecture in Apple. FORESTS 2022. [DOI: 10.3390/f13071084] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/10/2022]
Abstract
The columnar apple cultivar ‘McIntosh Wijcik’ was discovered as a spontaneous mutant from the top of a ‘McIntosh’ tree in the early 1960s. ‘McIntosh Wijcik’ exhibits the columnar growth phenotype: compact and sturdy growth, short internodes, and very few lateral shoots. Classical genetic analysis revealed that the columnar growth phenotype of ‘McIntosh Wijcik’ is controlled by a single dominant gene, Co. This review focuses on the advances made toward understanding the molecular mechanisms of columnar growth in the last decade. Molecular studies have shown that an 8.2 kb insertion in the intergenic region of the Co locus is responsible for the columnar growth phenotype of ‘McIntosh Wijcik’, implying that the insertion affects the expression patterns of adjacent genes. Among the candidate genes in the Co region, the expression pattern of MdDOX-Co, putatively encoding 2-oxoglutarate-dependent dioxygenase (DOX), was found to vary between columnar and non-columnar apples. Recent studies have found three functions of MdDOX-Co: facilitating bioactive gibberellin deficiency, increasing strigolactone levels, and positively regulating abscisic acid levels. Consequently, changes in these plant hormone levels caused by the ectopic expression of MdDOX-Co in the aerial organs of ‘McIntosh Wijcik’ can lead to dwarf trees with fewer lateral branches. These findings will contribute to the breeding and cultivation of new columnar apple cultivars with improved fruit quality.
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