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Li Z, Huang Y, Shen Z, Wu M, Huang M, Hong SB, Xu L, Zang Y. Advances in functional studies of plant MYC transcription factors. TAG. THEORETICAL AND APPLIED GENETICS. THEORETISCHE UND ANGEWANDTE GENETIK 2024; 137:195. [PMID: 39103657 DOI: 10.1007/s00122-024-04697-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/14/2024] [Accepted: 07/17/2024] [Indexed: 08/07/2024]
Abstract
Myelocytomatosis (MYC) transcription factors (TFs) belong to the basic helix-loop-helix (bHLH) family in plants and play a central role in governing a wide range of physiological processes. These processes encompass plant growth, development, adaptation to biotic and abiotic stresses, as well as secondary metabolism. In recent decades, significant strides have been made in comprehending the multifaceted regulatory functions of MYCs. This advancement has been achieved through the cloning of MYCs and the characterization of plants with MYC deficiencies or overexpression, employing comprehensive genome-wide 'omics' and protein-protein interaction technologies. MYCs act as pivotal components in integrating signals from various phytohormones' transcriptional regulators to orchestrate genome-wide transcriptional reprogramming. In this review, we have compiled current research on the role of MYCs as molecular switches that modulate signal transduction pathways mediated by phytohormones and phytochromes. This comprehensive overview allows us to address lingering questions regarding the interplay of signals in response to environmental cues and developmental shift. It also sheds light on the potential implications for enhancing plant resistance to diverse biotic and abiotic stresses through genetic improvements achieved by plant breeding and synthetic biology efforts.
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Affiliation(s)
- Zewei Li
- Key Laboratory of Quality and Safety Control for Subtropical Fruit and Vegetable, Ministry of Agriculture and Rural Affairs, Collaborative Innovation Center for Efficient and Green Production of Agriculture in Mountainous Areas of Zhejiang Province, College of Horticulture Science, Zhejiang A&F University, Hangzhou, 311300, Zhejiang, China
| | - Yunshuai Huang
- Key Laboratory of Quality and Safety Control for Subtropical Fruit and Vegetable, Ministry of Agriculture and Rural Affairs, Collaborative Innovation Center for Efficient and Green Production of Agriculture in Mountainous Areas of Zhejiang Province, College of Horticulture Science, Zhejiang A&F University, Hangzhou, 311300, Zhejiang, China
| | - Zhiwei Shen
- Key Laboratory of Quality and Safety Control for Subtropical Fruit and Vegetable, Ministry of Agriculture and Rural Affairs, Collaborative Innovation Center for Efficient and Green Production of Agriculture in Mountainous Areas of Zhejiang Province, College of Horticulture Science, Zhejiang A&F University, Hangzhou, 311300, Zhejiang, China
| | - Meifang Wu
- Key Laboratory of Quality and Safety Control for Subtropical Fruit and Vegetable, Ministry of Agriculture and Rural Affairs, Collaborative Innovation Center for Efficient and Green Production of Agriculture in Mountainous Areas of Zhejiang Province, College of Horticulture Science, Zhejiang A&F University, Hangzhou, 311300, Zhejiang, China
| | - Mujun Huang
- Key Laboratory of Quality and Safety Control for Subtropical Fruit and Vegetable, Ministry of Agriculture and Rural Affairs, Collaborative Innovation Center for Efficient and Green Production of Agriculture in Mountainous Areas of Zhejiang Province, College of Horticulture Science, Zhejiang A&F University, Hangzhou, 311300, Zhejiang, China
| | - Seung-Beom Hong
- Department of Biotechnology, University of Houston Clear Lake, Houston, TX, 77058-1098, USA
| | - Liai Xu
- Key Laboratory of Quality and Safety Control for Subtropical Fruit and Vegetable, Ministry of Agriculture and Rural Affairs, Collaborative Innovation Center for Efficient and Green Production of Agriculture in Mountainous Areas of Zhejiang Province, College of Horticulture Science, Zhejiang A&F University, Hangzhou, 311300, Zhejiang, China.
| | - Yunxiang Zang
- Key Laboratory of Quality and Safety Control for Subtropical Fruit and Vegetable, Ministry of Agriculture and Rural Affairs, Collaborative Innovation Center for Efficient and Green Production of Agriculture in Mountainous Areas of Zhejiang Province, College of Horticulture Science, Zhejiang A&F University, Hangzhou, 311300, Zhejiang, China.
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Takaoka Y, Liu R, Ueda M. A structure-redesigned intrinsically disordered peptide that selectively inhibits a plant transcription factor in jasmonate signaling. PNAS NEXUS 2024; 3:pgae312. [PMID: 39139264 PMCID: PMC11319934 DOI: 10.1093/pnasnexus/pgae312] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/29/2024] [Accepted: 07/10/2024] [Indexed: 08/15/2024]
Abstract
Plant hormone-related transcription factors (TFs) are key regulators of plant development, responses to environmental stress such as climate changes, pathogens, and pests. These TFs often function as families that exhibit genetic redundancy in higher plants, and are affected by complex crosstalk mechanisms between different plant hormones. These properties make it difficult to analyze and control them in many cases. In this study, we introduced a chemical inhibitor to manipulate plant hormone-related TFs, focusing on the jasmonate (JA) and ethylene (ET) signaling pathways, with the key TFs MYC2/3/4 and EIN3/EIL1. This study revealed that JAZ10CMID, the binding domain of the repressor involved in the desensitization of both TFs, is an intrinsically disordered region in the absence of binding partners. Chemical inhibitors have been designed based on this interaction to selectively inhibit MYC TFs while leaving EIN3/EIL1 unaffected. This peptide inhibitor effectively disrupts MYC-mediated responses while activating EIN3-mediated responses and successfully uncouples the crosstalk between JA and ET signaling in Arabidopsis thaliana. Furthermore, the designed peptide inhibitor was also shown to selectively inhibit the activity of MpMYC, an ortholog of AtMYC in Marchantia polymorpha, demonstrating its applicability across different plant species. This underscores the potential of using peptide inhibitors for specific TFs to elucidate hormone crosstalk mechanisms in non-model plants without genetic manipulation. Such a design concept for chemical fixation of the disordered structure is expected to limit the original multiple binding partners and provide useful chemical tools in chemical biology research.
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Affiliation(s)
- Yousuke Takaoka
- Department of Chemistry, Graduate School of Science, Tohoku University, 6-3, Aramaki-Aza Aoba, Aoba-ku, Sendai 980-8578, Japan
| | - Ruiqi Liu
- Department of Chemistry, Graduate School of Science, Tohoku University, 6-3, Aramaki-Aza Aoba, Aoba-ku, Sendai 980-8578, Japan
| | - Minoru Ueda
- Department of Chemistry, Graduate School of Science, Tohoku University, 6-3, Aramaki-Aza Aoba, Aoba-ku, Sendai 980-8578, Japan
- Department of Molecular and Chemical Life Sciences, Graduate School of Life Sciences, Tohoku University, Sendai, Japan
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Fernández JD, Miño I, Canales J, Vidal EA. Gene regulatory networks underlying sulfate deficiency responses in plants. JOURNAL OF EXPERIMENTAL BOTANY 2024; 75:2781-2798. [PMID: 38366662 DOI: 10.1093/jxb/erae051] [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: 09/27/2023] [Accepted: 02/14/2024] [Indexed: 02/18/2024]
Abstract
Sulfur (S) is an essential macronutrient for plants and its availability in soils is an important determinant for growth and development. Current regulatory policies aimed at reducing industrial S emissions together with changes in agronomical practices have led to a decline in S contents in soils worldwide. Deficiency of sulfate-the primary form of S accessible to plants in soil-has adverse effects on both crop yield and nutritional quality. Hence, recent research has increasingly focused on unraveling the molecular mechanisms through which plants detect and adapt to a limiting supply of sulfate. A significant part of these studies involves the use of omics technologies and has generated comprehensive catalogs of sulfate deficiency-responsive genes and processes, principally in Arabidopsis together with a few studies centering on crop species such as wheat, rice, or members of the Brassica genus. Although we know that sulfate deficiency elicits an important reprogramming of the transcriptome, the transcriptional regulators orchestrating this response are not yet well understood. In this review, we summarize our current knowledge of gene expression responses to sulfate deficiency and recent efforts towards the identification of the transcription factors that are involved in controlling these responses. We further compare the transcriptional response and putative regulators between Arabidopsis and two important crop species, rice and tomato, to gain insights into common mechanisms of the response to sulfate deficiency.
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Affiliation(s)
- José David Fernández
- Centro de Genómica y Bioinformática, Facultad de Ciencias, Ingeniería y Tecnología, Universidad Mayor, 8580745, Santiago, Chile
- Agencia Nacional de Investigación y Desarrollo - Millennium Science Initiative Program, Millennium Institute for Integrative Biology, 7500565, Santiago, Chile
- Programa de Doctorado en Genómica Integrativa, Vicerrectoría de Investigación, Universidad Mayor, 8580745, Santiago, Chile
| | - Ignacio Miño
- Agencia Nacional de Investigación y Desarrollo - Millennium Science Initiative Program, Millennium Institute for Integrative Biology, 7500565, Santiago, Chile
- Instituto de Bioquímica y Microbiología, Facultad de Ciencias, Universidad Austral de Chile, 5110566, Valdivia, Chile
| | - Javier Canales
- Agencia Nacional de Investigación y Desarrollo - Millennium Science Initiative Program, Millennium Institute for Integrative Biology, 7500565, Santiago, Chile
- Instituto de Bioquímica y Microbiología, Facultad de Ciencias, Universidad Austral de Chile, 5110566, Valdivia, Chile
| | - Elena A Vidal
- Centro de Genómica y Bioinformática, Facultad de Ciencias, Ingeniería y Tecnología, Universidad Mayor, 8580745, Santiago, Chile
- Agencia Nacional de Investigación y Desarrollo - Millennium Science Initiative Program, Millennium Institute for Integrative Biology, 7500565, Santiago, Chile
- Escuela de Biotecnología, Facultad de Ciencias, Ingeniería y Tecnología, Universidad Mayor, 8580745, Santiago, Chile
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Song YT, Ma K, Zhao Y, Han LQ, Liu LQ. Genome-wide identification of the walnut MYC gene family and functional characterization of Xinjiang wild walnut under low-temperature stress. Front Genet 2024; 15:1399721. [PMID: 38803544 PMCID: PMC11128688 DOI: 10.3389/fgene.2024.1399721] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2024] [Accepted: 04/22/2024] [Indexed: 05/29/2024] Open
Abstract
Introduction: MYC transcription factors are the basic regulators of the jasmonic acid signaling pathway and play important roles in plant growth and development and the response to adverse stress. In recent years, severe winter freezing and late spring frost in the main planting area of walnut in Xinjiang have affected the growth and development of walnut, which has become a prominent problem restricting walnut production. Xinjiang wild walnut is the only remaining wild species of walnuts in China, which contains a lot of genes with excellent traits, and is important for the cultivation and breeding. Methods: In this paper, the physicochemical properties and bioinformatics of MYC transcription factor members in walnut were analyzed, and the nine MYC were screened from the transcriptome data under low temperature stress. At last, we study the subcellular localizations and the expression patterns of the nine MYC members in Xinjiang wild walnut. Results: The results revealed that 30 MYC members were identified from published walnut whole-genome data, and their evolutionary relationships with Arabidopsis and poplar were divided into six groups according to clustering analysis, among which JrMYC22 and JrMYC23 had high homology with PtrMYC2b, which is induced by jasmonic acid in response to low-temperature stress. Walnut MYC members are unevenly distributed on 12 chromosomes. The prediction of promoter cis-acting elements of walnut MYC transcription factor family members revealed that cis-acting elements related to jasmonic acid and lowtemperature stress were the ones with the greatest number of members, with 12. In addition, all nine MYC family members in Xinjiang wild walnut plants responding to low-temperature stress exhibited strong fluorescence responses in the nucleus. The expression levels of these members in response to low-temperature stress revealed that JrMYC28, JrMYC31, JrMYC33, JrMYC34, and JrMYC35 were highly expressed, and it was hypothesized that JrMYC28, JrMYC31, JrMYC33, JrMYC34, and JrMYC35 might play a key role in the response to lowtemperature stress. Discussion: The results of this study provide a theoretical basis for further research on the functional mechanisms of the MYC transcription factor family members in walnut.
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Affiliation(s)
- Ya-Ting Song
- College of Horticulture, Xinjiang Agricultural University, Urumqi, China
- Xinjiang Key Laboratory of Genome Research and Genetic Improvement of Specialty Fruits and Vegetables, Xinjiang Institute of Horticultural Crops, Xinjiang Academy of Agricultural Sciences, Xinjiang Regional Scientific Observatory and Experiment Station of Fruit Trees, Ministry of Agriculture, Urumqi, China
| | - Kai Ma
- Xinjiang Key Laboratory of Genome Research and Genetic Improvement of Specialty Fruits and Vegetables, Xinjiang Institute of Horticultural Crops, Xinjiang Academy of Agricultural Sciences, Xinjiang Regional Scientific Observatory and Experiment Station of Fruit Trees, Ministry of Agriculture, Urumqi, China
| | - Yu Zhao
- Xinjiang Key Laboratory of Genome Research and Genetic Improvement of Specialty Fruits and Vegetables, Xinjiang Institute of Horticultural Crops, Xinjiang Academy of Agricultural Sciences, Xinjiang Regional Scientific Observatory and Experiment Station of Fruit Trees, Ministry of Agriculture, Urumqi, China
| | - Li-Qun Han
- College of Horticulture, Xinjiang Agricultural University, Urumqi, China
- Xinjiang Key Laboratory of Genome Research and Genetic Improvement of Specialty Fruits and Vegetables, Xinjiang Institute of Horticultural Crops, Xinjiang Academy of Agricultural Sciences, Xinjiang Regional Scientific Observatory and Experiment Station of Fruit Trees, Ministry of Agriculture, Urumqi, China
| | - Li-Qiang Liu
- College of Horticulture, Xinjiang Agricultural University, Urumqi, China
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Liu L, Zhang Y, Tang C, Wu J, Fu J, Wang Q. Genome-wide identification of ZmMYC2 binding sites and target genes in maize. BMC Genomics 2024; 25:397. [PMID: 38654166 PMCID: PMC11036654 DOI: 10.1186/s12864-024-10297-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2024] [Accepted: 04/09/2024] [Indexed: 04/25/2024] Open
Abstract
BACKGROUND Jasmonate (JA) is the important phytohormone to regulate plant growth and adaption to stress signals. MYC2, an bHLH transcription factor, is the master regulator of JA signaling. Although MYC2 in maize has been identified, its function remains to be clarified. RESULTS To understand the function and regulatory mechanism of MYC2 in maize, the joint analysis of DAP-seq and RNA-seq is conducted to identify the binding sites and target genes of ZmMYC2. A total of 3183 genes are detected both in DAP-seq and RNA-seq data, potentially as the directly regulating genes of ZmMYC2. These genes are involved in various biological processes including plant growth and stress response. Besides the classic cis-elements like the G-box and E-box that are bound by MYC2, some new motifs are also revealed to be recognized by ZmMYC2, such as nGCATGCAnn, AAAAAAAA, CACGTGCGTGCG. The binding sites of many ZmMYC2 regulating genes are identified by IGV-sRNA. CONCLUSIONS All together, abundant target genes of ZmMYC2 are characterized with their binding sites, providing the basis to construct the regulatory network of ZmMYC2 and better understanding for JA signaling in maize.
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Affiliation(s)
- Lijun Liu
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, College of Agronomy, Sichuan Agricultural University, 611130, Chengdu, China
- College of Life Science, Sichuan Agricultural University, 625014, Yaan, China
| | - Yuhan Zhang
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, College of Agronomy, Sichuan Agricultural University, 611130, Chengdu, China
| | - Chen Tang
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, College of Agronomy, Sichuan Agricultural University, 611130, Chengdu, China
| | - Jine Wu
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, College of Agronomy, Sichuan Agricultural University, 611130, Chengdu, China
| | - Jingye Fu
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, College of Agronomy, Sichuan Agricultural University, 611130, Chengdu, China.
| | - Qiang Wang
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, College of Agronomy, Sichuan Agricultural University, 611130, Chengdu, China.
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Im JH, Son S, Kim WC, Kim K, Mitsuda N, Ko JH, Han KH. Jasmonate activates secondary cell wall biosynthesis through MYC2-MYB46 module. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2024; 117:1099-1114. [PMID: 37983636 DOI: 10.1111/tpj.16541] [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: 07/13/2023] [Revised: 10/17/2023] [Accepted: 10/26/2023] [Indexed: 11/22/2023]
Abstract
Formation of secondary cell wall (SCW) is tightly regulated spatiotemporally by various developmental and environmental signals. Successful fine-tuning of the trade-off between SCW biosynthesis and stress responses requires a better understanding of how plant growth is regulated under environmental stress conditions. However, the current understanding of the interplay between environmental signaling and SCW formation is limited. The lipid-derived plant hormone jasmonate (JA) and its derivatives are important signaling components involved in various physiological processes including plant growth, development, and abiotic/biotic stress responses. Recent studies suggest that JA is involved in SCW formation but the signaling pathway has not been studied for how JA regulates SCW formation. We tested this hypothesis using the transcription factor MYB46, a master switch for SCW biosynthesis, and JA treatments. Both the transcript and protein levels of MYB46, a master switch for SCW formation, were significantly increased by JA treatment, resulting in the upregulation of SCW biosynthesis. We then show that this JA-induced upregulation of MYB46 is mediated by MYC2, a central regulator of JA signaling, which binds to the promoter of MYB46. We conclude that this MYC2-MYB46 module is a key component of the plant response to JA in SCW formation.
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Affiliation(s)
- Jong Hee Im
- Department of Horticulture, Michigan State University, East Lansing, Michigan, 48824, USA
- DOE Great Lakes Bioenergy Research Center, Michigan State University, East Lansing, Michigan, 48824, USA
- Department of Science Education, Jeju National University, Jeju, Republic of Korea
| | - Seungmin Son
- National Institute of Agricultural Sciences, Rural Development Administration, Jeonju, 54874, Republic of Korea
| | - Won-Chan Kim
- School of Applied Biosciences, Kyungpook National University, Daegu, 41566, Republic of Korea
| | - Kihwan Kim
- School of Applied Biosciences, Kyungpook National University, Daegu, 41566, Republic of Korea
| | - Nobutaka Mitsuda
- Bioproduction Research Institute, National Institute of Advanced Industrial Science and Technology, Tsukuba, 305-8566, Japan
| | - Jae-Heung Ko
- Department of Plant & Environmental New Resources, Kyung Hee University, Yongin, 17104, Republic of Korea
| | - Kyung-Hwan Han
- Department of Horticulture, Michigan State University, East Lansing, Michigan, 48824, USA
- DOE Great Lakes Bioenergy Research Center, Michigan State University, East Lansing, Michigan, 48824, USA
- Department of Forestry, Michigan State University, East Lansing, Michigan, 48824, USA
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Qu G, Wang K, Mu J, Zhuo J, Wang X, Li S, Ye X, Li Y, Yan Y, Li X. Identifying cis-Acting Elements Associated with the High Activity and Endosperm Specificity of the Promoters of Genes Encoding Low-Molecular-Weight Glutenin Subunits in Common Wheat ( Triticum aestivum). JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2023. [PMID: 37919930 DOI: 10.1021/acs.jafc.3c04209] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/04/2023]
Abstract
Low-molecular-weight glutenin subunits (LMW-GSs) associated with bread-baking quality and flour nutrient quality accumulate in endosperms of common wheat and related species. However, the mechanism underlying the expression regulation of genes encoding LMW-GSs has not been fully elucidated. In this study, we identified LMW-D2 and LMW-D7, which are highly and weakly expressed, respectively, via the analysis of RNA-sequencing data of Chinese Spring wheat and wheat transgenic lines transformed with 5' deletion promoter fragments and GUS fusion constructs. The 605-bp fragment upstream of the LMW-D2 start codon could drive high levels of GUS expression in the endosperm. The truncated endosperm box located at the -300 site resulted in the loss of LMW-D2 promoter activity, and a single-nucleotide polymorphism on the GCN4 motif was closely related to the expression of LMW-GSs. TCT and TGACG motifs, as well as the others located on the 5' distal end, might also be involved in the transcription regulation of LMW-GSs. In transgenic lines, fusion proteins of LMW-GS and GUS were deposited into protein bodies. Our findings provide new insights into the mechanism underlying the transcription regulation of LMW-GSs and will contribute to the development of wheat endosperm as a bioreactor for the production of nutraceuticals, antibodies, vaccines, and medicinal proteins.
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Affiliation(s)
- Ge Qu
- Key Laboratory of Genetics and Biotechnology, College of Life Science, Capital Normal University, Beijing 100048, China
| | - Ke Wang
- National Wheat Improvement Center, Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Junyi Mu
- Key Laboratory of Genetics and Biotechnology, College of Life Science, Capital Normal University, Beijing 100048, China
| | - Jiahui Zhuo
- Key Laboratory of Genetics and Biotechnology, College of Life Science, Capital Normal University, Beijing 100048, China
| | - Xinyu Wang
- Key Laboratory of Genetics and Biotechnology, College of Life Science, Capital Normal University, Beijing 100048, China
| | - Shasha Li
- Key Laboratory of Genetics and Biotechnology, College of Life Science, Capital Normal University, Beijing 100048, China
| | - Xingguo Ye
- National Wheat Improvement Center, Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Yaxuan Li
- Key Laboratory of Genetics and Biotechnology, College of Life Science, Capital Normal University, Beijing 100048, China
| | - Yueming Yan
- Key Laboratory of Genetics and Biotechnology, College of Life Science, Capital Normal University, Beijing 100048, China
| | - Xiaohui Li
- Key Laboratory of Genetics and Biotechnology, College of Life Science, Capital Normal University, Beijing 100048, China
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Yuan J, Liu X, Zhao H, Wang Y, Wei X, Wang P, Zhan J, Liu L, Li F, Ge X. GhRCD1 regulates cotton somatic embryogenesis by modulating the GhMYC3-GhMYB44-GhLBD18 transcriptional cascade. THE NEW PHYTOLOGIST 2023; 240:207-223. [PMID: 37434324 DOI: 10.1111/nph.19120] [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: 02/25/2023] [Accepted: 06/08/2023] [Indexed: 07/13/2023]
Abstract
Plant somatic embryogenesis (SE) is a multifactorial developmental process where embryos that can develop into whole plants are produced from somatic cells rather than through the fusion of gametes. The molecular regulation of plant SE, which involves the fate transition of somatic cells into embryogenic cells, is intriguing yet remains elusive. We deciphered the molecular mechanisms by which GhRCD1 interacts with GhMYC3 to regulate cell fate transitions during SE in cotton. While silencing of GhMYC3 had no discernible effect on SE, its overexpression accelerated callus formation, and proliferation. We identified two of GhMYC3 downstream SE regulators, GhMYB44 and GhLBD18. GhMYB44 overexpression was unconducive to callus growth but bolstered EC differentiation. However, GhLBD18 can be triggered by GhMYC3 but inhibited by GhMYB44, which positively regulates callus growth. On top of the regulatory cascade, GhRCD1 antagonistically interacts with GhMYC3 to inhibit the transcriptional function of GhMYC3 on GhMYB44 and GhLBD18, whereby a CRISPR-mediated rcd1 mutation expedites cell fate transition, resembling the effects of GhMYC3 overexpression. Furthermore, we showed that reactive oxygen species (ROS) are involved in SE regulation. Our findings elucidated that SE homeostasis is maintained by the tetrapartite module, GhRCD1-GhMYC3-GhMYB44-GhLBD18, which acts to modulate intracellular ROS in a temporal manner.
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Affiliation(s)
- Jiachen Yuan
- Zhengzhou Research Base, State Key Laboratory of Cotton Biology, Zhengzhou University, Zhengzhou, 450001, China
- State Key Laboratory of Cotton Biology, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, 455000, China
| | - Xingxing Liu
- Zhengzhou Research Base, State Key Laboratory of Cotton Biology, Zhengzhou University, Zhengzhou, 450001, China
| | - Hang Zhao
- Zhengzhou Research Base, State Key Laboratory of Cotton Biology, Zhengzhou University, Zhengzhou, 450001, China
- State Key Laboratory of Cotton Biology, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, 455000, China
- College of Life Sciences, Qufu Normal University, Qufu, 273165, China
| | - Ye Wang
- Zhengzhou Research Base, State Key Laboratory of Cotton Biology, Zhengzhou University, Zhengzhou, 450001, China
- State Key Laboratory of Cotton Biology, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, 455000, China
| | - Xi Wei
- Research Base of State Key Laboratory of Cotton Biology, Henan Normal University, Xinxiang, 453000, China
| | - Peng Wang
- State Key Laboratory of Cotton Biology, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, 455000, China
| | - Jingjing Zhan
- State Key Laboratory of Cotton Biology, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, 455000, China
| | - Lisen Liu
- State Key Laboratory of Cotton Biology, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, 455000, China
| | - Fuguang Li
- Zhengzhou Research Base, State Key Laboratory of Cotton Biology, Zhengzhou University, Zhengzhou, 450001, China
- State Key Laboratory of Cotton Biology, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, 455000, China
| | - Xiaoyang Ge
- Zhengzhou Research Base, State Key Laboratory of Cotton Biology, Zhengzhou University, Zhengzhou, 450001, China
- State Key Laboratory of Cotton Biology, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, 455000, China
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Hu Y, Liu Y, Tao JJ, Lu L, Jiang ZH, Wei JJ, Wu CM, Yin CC, Li W, Bi YD, Lai YC, Wei W, Zhang WK, Chen SY, Zhang JS. GmJAZ3 interacts with GmRR18a and GmMYC2a to regulate seed traits in soybean. JOURNAL OF INTEGRATIVE PLANT BIOLOGY 2023; 65:1983-2000. [PMID: 37066995 DOI: 10.1111/jipb.13494] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/03/2022] [Accepted: 04/12/2023] [Indexed: 05/18/2023]
Abstract
Seed weight is usually associated with seed size and is one of the important agronomic traits that determine yield. Understanding of seed weight control is limited, especially in soybean plants. Here we show that Glycine max JASMONATE-ZIM DOMAIN 3 (GmJAZ3), a gene identified through gene co-expression network analysis, regulates seed-related traits in soybean. Overexpression of GmJAZ3 promotes seed size/weight and other organ sizes in stable transgenic soybean plants likely by increasing cell proliferation. GmJAZ3 interacted with both G. max RESPONSE REGULATOR 18a (GmRR18a) and GmMYC2a to inhibit their transcriptional activation of cytokinin oxidase gene G. max CYTOKININ OXIDASE 3-4 (GmCKX3-4), which usually affects seed traits. Meanwhile, the GmRR18a binds to the promoter of GmMYC2a and activates GmMYC2a gene expression. In GmJAZ3-overexpressing soybean seeds, the protein contents were increased while the fatty acid contents were reduced compared to those in the control seeds, indicating that the GmJAZ3 affects seed size/weight and compositions. Natural variation in JAZ3 promoter region was further analyzed and Hap3 promoter correlates with higher promoter activity, higher gene expression and higher seed weight. The Hap3 promoter may be selected and fixed during soybean domestication. JAZ3 orthologs from other plants/crops may also control seed size and weight. Taken together, our study reveals a novel molecular module GmJAZ3-GmRR18a/GmMYC2a-GmCKXs for seed size and weight control, providing promising targets during soybean molecular breeding for better seed traits.
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Affiliation(s)
- Yang Hu
- State Key Laboratory of Plant Genomics, Institute of Genetics and Developmental Biology, Innovative Academy of Seed Design, Chinese Academy of Sciences, Beijing, 100101, China
- College of Advanced Agricultural Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Yue Liu
- State Key Laboratory of Plant Genomics, Institute of Genetics and Developmental Biology, Innovative Academy of Seed Design, Chinese Academy of Sciences, Beijing, 100101, China
- College of Advanced Agricultural Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Jian-Jun Tao
- State Key Laboratory of Plant Genomics, Institute of Genetics and Developmental Biology, Innovative Academy of Seed Design, Chinese Academy of Sciences, Beijing, 100101, China
| | - Long Lu
- State Key Laboratory of Plant Genomics, Institute of Genetics and Developmental Biology, Innovative Academy of Seed Design, Chinese Academy of Sciences, Beijing, 100101, China
- Key Laboratory of Ministry of Education for Genetics, Breeding and Multiple Utilization of Crops, College of Crop Sciences, Fujian Agriculture and Forestry University, Fuzhou, 350002, China
| | - Zhi-Hao Jiang
- State Key Laboratory of Plant Genomics, Institute of Genetics and Developmental Biology, Innovative Academy of Seed Design, Chinese Academy of Sciences, Beijing, 100101, China
- College of Advanced Agricultural Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Jun-Jie Wei
- State Key Laboratory of Plant Genomics, Institute of Genetics and Developmental Biology, Innovative Academy of Seed Design, Chinese Academy of Sciences, Beijing, 100101, China
- College of Advanced Agricultural Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Chun-Mei Wu
- State Key Laboratory of Plant Genomics, Institute of Genetics and Developmental Biology, Innovative Academy of Seed Design, Chinese Academy of Sciences, Beijing, 100101, China
- College of Advanced Agricultural Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Cui-Cui Yin
- State Key Laboratory of Plant Genomics, Institute of Genetics and Developmental Biology, Innovative Academy of Seed Design, Chinese Academy of Sciences, Beijing, 100101, China
| | - Wei Li
- Crop Tillage and Cultivation Institute, Heilongjiang Academy of Agricultural Sciences, Harbin, 150086, China
| | - Ying-Dong Bi
- Crop Tillage and Cultivation Institute, Heilongjiang Academy of Agricultural Sciences, Harbin, 150086, China
| | - Yong-Cai Lai
- Crop Tillage and Cultivation Institute, Heilongjiang Academy of Agricultural Sciences, Harbin, 150086, China
| | - Wei Wei
- State Key Laboratory of Plant Genomics, Institute of Genetics and Developmental Biology, Innovative Academy of Seed Design, Chinese Academy of Sciences, Beijing, 100101, China
| | - Wan-Ke Zhang
- State Key Laboratory of Plant Genomics, Institute of Genetics and Developmental Biology, Innovative Academy of Seed Design, Chinese Academy of Sciences, Beijing, 100101, China
| | - Shou-Yi Chen
- State Key Laboratory of Plant Genomics, Institute of Genetics and Developmental Biology, Innovative Academy of Seed Design, Chinese Academy of Sciences, Beijing, 100101, China
- Qilu Zhongke Academy of Modern Microbiology Technology, Jinan, 250000, China
| | - Jin-Song Zhang
- State Key Laboratory of Plant Genomics, Institute of Genetics and Developmental Biology, Innovative Academy of Seed Design, Chinese Academy of Sciences, Beijing, 100101, China
- College of Advanced Agricultural Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China
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10
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Li S, Hu Y, Yang H, Tian S, Wei D, Tang Q, Yang Y, Wang Z. The Regulatory Roles of MYC TFs in Plant Stamen Development. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2023; 333:111734. [PMID: 37207819 DOI: 10.1016/j.plantsci.2023.111734] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/03/2022] [Revised: 05/14/2023] [Accepted: 05/16/2023] [Indexed: 05/21/2023]
Abstract
The stamen, as the male reproductive organ of flowering plants, plays a critical role in completing the life cycle of plants. MYC transcription factors are members of the bHLH IIIE subgroup and participate in a number of plant biological processes. In recent decades, a number of studies have confirmed that MYC transcription factors actively participate in the regulation of stamen development and have a critical impact on plant fertility. In this review, we summarized how MYC transcription factors play a role in regulating secondary thickening of the anther endothecium, the development and degradation of the tapetum, stomatal differentiation, and the dehydration of the anther epidermis. With regard to anther physiological metabolism, MYC transcription factors control dehydrin synthesis, ion and water transport, and carbohydrate metabolism to influence pollen viability. Additionally, MYCs participate in the JA signal transduction pathway, where they directly or indirectly control the development of stamens through the ET-JA, GA-JA, and ABA-JA pathways. By identifying the functions of MYCs during plant stamen development, it will help us to obtain a more comprehensive understanding not only on the molecular functions of this TF family but also the mechanisms underlying stamen development.
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Affiliation(s)
- Sirui Li
- College of Horticulture and Landscape Architecture, Southwest University, Chongqing 400715, China; Chongqing Key Laboratory of Olericulture, Chongqing, 400715, China.
| | - Yao Hu
- College of Horticulture and Landscape Architecture, Southwest University, Chongqing 400715, China; Chongqing Key Laboratory of Olericulture, Chongqing, 400715, China.
| | - Huiqing Yang
- College of Horticulture and Landscape Architecture, Southwest University, Chongqing 400715, China; Chongqing Key Laboratory of Olericulture, Chongqing, 400715, China.
| | - Shibing Tian
- The Institute of Vegetables and Flowers, Chongqing Academy of Agricultural Sciences, Chongqing 400055, China.
| | - Dayong Wei
- College of Horticulture and Landscape Architecture, Southwest University, Chongqing 400715, China; Chongqing Key Laboratory of Olericulture, Chongqing, 400715, China.
| | - Qinglin Tang
- College of Horticulture and Landscape Architecture, Southwest University, Chongqing 400715, China; Chongqing Key Laboratory of Olericulture, Chongqing, 400715, China.
| | - Yang Yang
- The Institute of Vegetables and Flowers, Chongqing Academy of Agricultural Sciences, Chongqing 400055, China.
| | - Zhimin Wang
- College of Horticulture and Landscape Architecture, Southwest University, Chongqing 400715, China; Chongqing Key Laboratory of Olericulture, Chongqing, 400715, China.
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11
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Wang S, Wang Y, Yang R, Cai W, Liu Y, Zhou D, Meng L, Wang P, Huang B. Genome-Wide Identification and Analysis Uncovers the Potential Role of JAZ and MYC Families in Potato under Abiotic Stress. Int J Mol Sci 2023; 24:ijms24076706. [PMID: 37047679 PMCID: PMC10094809 DOI: 10.3390/ijms24076706] [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: 03/06/2023] [Revised: 03/23/2023] [Accepted: 03/24/2023] [Indexed: 04/14/2023] Open
Abstract
As key regulators of the Jasmonates (JAs) signal transduction pathway, JAZ protein, and MYC transcription factors are imperative for plant response to external environmental changes, growth, and development. In this study, 18 StJAZs and 12 StMYCs were identified in potatoes. Their chromosomal position, phylogenetic development, gene structure, and promoter cis-acting parts of the StJAZ genes were analyzed. In addition, Protein-Protein Interaction (PPI) network analysis of StJAZ and StMYC gene families and yeast two-hybrid assay demonstrated that five StMYCs can interact with 16 StJAZs, which provides new insights into the operation mechanism of StJAZs and StMYCs in JA signal response. Moreover, we explored the expression profiles of StJAZs and StMYCs genes in different tissues and during abiotic stresses by RNA-seq data. Based on the PPI network and transcriptome data, the genes StJAZ11, StJAZ16, and StMYC6 were chosen for further qRT-PCR study under salt or mannitol treatment. Under mannitol-induced drought or salinity treatment, the expression patterns of StMYC6, StJAZ11, and StJAZ16 were different, indicating that the JAZ protein and MYC transcription factor may be engaged in the response of potatoes to abiotic stress, which opened up a new research direction for the genetic improvement of potatoes in response to environmental stress.
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Affiliation(s)
- Shan Wang
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, School of Agriculture, Yunnan University, Kunming 650504, China
| | - Yongbin Wang
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, School of Agriculture, Yunnan University, Kunming 650504, China
| | - Rui Yang
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, School of Agriculture, Yunnan University, Kunming 650504, China
| | - Wanhua Cai
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, School of Agriculture, Yunnan University, Kunming 650504, China
| | - Yaning Liu
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, School of Agriculture, Yunnan University, Kunming 650504, China
| | - Duanrong Zhou
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, School of Agriculture, Yunnan University, Kunming 650504, China
| | - Li Meng
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, School of Agriculture, Yunnan University, Kunming 650504, China
| | - Ping Wang
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, School of Agriculture, Yunnan University, Kunming 650504, China
| | - Binquan Huang
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, School of Agriculture, Yunnan University, Kunming 650504, China
- Southwest United Graduate School, Kunming 650504, China
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12
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Liu S, Liu Z, Hou X, Li X. Genetic mapping and functional genomics of soybean seed protein. MOLECULAR BREEDING : NEW STRATEGIES IN PLANT IMPROVEMENT 2023; 43:29. [PMID: 37313523 PMCID: PMC10248706 DOI: 10.1007/s11032-023-01373-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/29/2022] [Accepted: 03/25/2023] [Indexed: 06/15/2023]
Abstract
Soybean is an utterly important crop for high-quality meal protein and vegetative oil. Soybean seed protein content has become a key factor in nutrients for livestock feed as well as human dietary consumption. Genetic improvement of soybean seed protein is highly desired to meet the demands of rapidly growing world population. Molecular mapping and genomic analysis in soybean have identified many quantitative trait loci (QTL) underlying seed protein content control. Exploring the mechanisms of seed storage protein regulation will be helpful to achieve the improvement of protein content. However, the practice of breeding higher protein soybean is challenging because soybean seed protein is negatively correlated with seed oil content and yield. To overcome the limitation of such inverse relationship, deeper insights into the property and genetic control of seed protein are required. Recent advances of soybean genomics have strongly enhanced the understandings for molecular mechanisms of soybean with better seed quality. Here, we review the research progress in the genetic characteristics of soybean storage protein, and up-to-date advances of molecular mappings and genomics of soybean protein. The key factors underlying the mechanisms of the negative correlation between protein and oil in soybean seeds are elaborated. We also briefly discuss the future prospects of breaking the bottleneck of the negative correlation to develop high protein soybean without penalty of oil and yield. Supplementary Information The online version contains supplementary material available at 10.1007/s11032-023-01373-5.
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Affiliation(s)
- Shu Liu
- Guangdong Provincial Key Laboratory of Applied Botany & Key Laboratory of South China Agricultural Plant Molecular Analysis and Genetic Improvement, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, 510650 China
- University of Chinese Academy of Sciences, Beijing, 100049 China
| | - Zhaojun Liu
- Heilongjiang Academy of Agricultural Sciences, Harbin, 150086 China
| | - Xingliang Hou
- Guangdong Provincial Key Laboratory of Applied Botany & Key Laboratory of South China Agricultural Plant Molecular Analysis and Genetic Improvement, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, 510650 China
- Hainan Yazhou Bay Seed Laboratory, Sanya, 572025 China
| | - Xiaoming Li
- Guangdong Provincial Key Laboratory of Applied Botany & Key Laboratory of South China Agricultural Plant Molecular Analysis and Genetic Improvement, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, 510650 China
- Hainan Yazhou Bay Seed Laboratory, Sanya, 572025 China
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13
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MYC2: A Master Switch for Plant Physiological Processes and Specialized Metabolite Synthesis. Int J Mol Sci 2023; 24:ijms24043511. [PMID: 36834921 PMCID: PMC9963318 DOI: 10.3390/ijms24043511] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Revised: 01/27/2023] [Accepted: 02/08/2023] [Indexed: 02/12/2023] Open
Abstract
The jasmonic acid (JA) signaling pathway plays important roles in plant defenses, development, and the synthesis of specialized metabolites synthesis. Transcription factor MYC2 is a major regulator of the JA signaling pathway and is involved in the regulation of plant physiological processes and specialized metabolite synthesis. Based on our understanding of the mechanism underlying the regulation of specialized metabolite synthesis in plants by the transcription factor MYC2, the use of synthetic biology approaches to design MYC2-driven chassis cells for the synthesis of specialized metabolites with high medicinal value, such as paclitaxel, vincristine, and artemisinin, seems to be a promising strategy. In this review, the regulatory role of MYC2 in JA signal transduction of plants to biotic and abiotic stresses, plant growth, development and specialized metabolite synthesis is described in detail, which will provide valuable reference for the use of MYC2 molecular switches to regulate plant specialized metabolite biosynthesis.
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14
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Guo Q, Major IT, Kapali G, Howe GA. MYC transcription factors coordinate tryptophan-dependent defence responses and compromise seed yield in Arabidopsis. THE NEW PHYTOLOGIST 2022; 236:132-145. [PMID: 35642375 PMCID: PMC9541860 DOI: 10.1111/nph.18293] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/15/2022] [Accepted: 05/29/2022] [Indexed: 06/15/2023]
Abstract
Robust plant immunity negatively affects other fitness traits, including growth and seed production. Jasmonate (JA) confers broad-spectrum protection against plant consumers by stimulating the degradation of JASMONATE ZIM-DOMAIN (JAZ) proteins, which in turn relieves repression on transcription factors (TFs) coincident with reduced growth and fecundity. The molecular mechanisms underlying JA-mediated decreases in fitness remain largely unknown. To assess the contribution of MYC TFs to growth and reproductive fitness at high levels of defence, we mutated three MYC genes in a JAZ-deficient mutant (jazD) of Arabidopsis thaliana that exhibits strong defence and low seed yield. Genetic epistasis analysis showed that de-repression of MYC TFs in jazD not only conferred strong resistance to insect herbivory but also reduced shoot and root growth, fruit size and seed yield. We also provided evidence that the JAZ-MYC module coordinates the supply of tryptophan with the production of indole glucosinolates and the proliferation of endoplasmic reticulum bodies that metabolise glucosinolates through the action of β-glucosidases. Our results establish MYCs as major regulators of growth- and reproductive-defence trade-offs and further indicate that these factors coordinate tryptophan availability with the production of amino acid-derived defence compounds.
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Affiliation(s)
- Qiang Guo
- DOE Plant Research LaboratoryMichigan State UniversityEast LansingMI48824USA
| | - Ian T. Major
- DOE Plant Research LaboratoryMichigan State UniversityEast LansingMI48824USA
| | - George Kapali
- DOE Plant Research LaboratoryMichigan State UniversityEast LansingMI48824USA
- Plant Resilience InstituteMichigan State UniversityEast LansingMI48824USA
| | - Gregg A. Howe
- DOE Plant Research LaboratoryMichigan State UniversityEast LansingMI48824USA
- Plant Resilience InstituteMichigan State UniversityEast LansingMI48824USA
- Department of Biochemistry and Molecular BiologyMichigan State UniversityEast LansingMI48824USA
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15
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Ying Y, Zhang Z, Tappiban P, Xu F, Deng G, Dai G, Bao J. Starch fine structure and functional properties during seed development in BEIIb active and deficient rice. Carbohydr Polym 2022; 292:119640. [DOI: 10.1016/j.carbpol.2022.119640] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2022] [Revised: 05/07/2022] [Accepted: 05/17/2022] [Indexed: 11/02/2022]
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16
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Verma S, Attuluri VPS, Robert HS. Transcriptional control of Arabidopsis seed development. PLANTA 2022; 255:90. [PMID: 35318532 PMCID: PMC8940821 DOI: 10.1007/s00425-022-03870-x] [Citation(s) in RCA: 24] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/03/2021] [Accepted: 03/04/2022] [Indexed: 05/04/2023]
Abstract
The entire process of embryo development is under the tight control of various transcription factors. Together with other proteins, they act in a combinatorial manner and control distinct events during embryo development. Seed development is a complex process that proceeds through sequences of events regulated by the interplay of various genes, prominent among them being the transcription factors (TFs). The members of WOX, HD-ZIP III, ARF, and CUC families have a preferential role in embryonic patterning. While WOX TFs are required for initiating body axis, HD-ZIP III TFs and CUCs establish bilateral symmetry and SAM. And ARF5 performs a major role during embryonic root, ground tissue, and vasculature development. TFs such as LEC1, ABI3, FUS3, and LEC2 (LAFL) are considered the master regulators of seed maturation. Furthermore, several new TFs involved in seed storage reserves and dormancy have been identified in the last few years. Their association with those master regulators has been established in the model plant Arabidopsis. Also, using chromatin immunoprecipitation (ChIP) assay coupled with transcriptomics, genome-wide target genes of these master regulators have recently been proposed. Many seed-specific genes, including those encoding oleosins and albumins, have appeared as the direct target of LAFL. Also, several other TFs act downstream of LAFL TFs and perform their function during maturation. In this review, the function of different TFs in different phases of early embryogenesis and maturation is discussed in detail, including information about their genetic and molecular interactors and target genes. Such knowledge can further be leveraged to understand and manipulate the regulatory mechanisms involved in seed development. In addition, the genomics approaches and their utilization to identify TFs aiming to study embryo development are discussed.
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Affiliation(s)
- Subodh Verma
- Mendel Centre for Genomics and Proteomics of Plants Systems, CEITEC MU - Central European Institute of Technology, Masaryk University, Brno, Czech Republic
| | - Venkata Pardha Saradhi Attuluri
- Mendel Centre for Genomics and Proteomics of Plants Systems, CEITEC MU - Central European Institute of Technology, Masaryk University, Brno, Czech Republic
| | - Hélène S. Robert
- Mendel Centre for Genomics and Proteomics of Plants Systems, CEITEC MU - Central European Institute of Technology, Masaryk University, Brno, Czech Republic
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17
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Ye L, Cao L, Zhao X, Guo X, Ye K, Jiao S, Wang Y, He X, Dong C, Hu B, Deng F, Zhao H, Zheng P, Aslam M, Qin Y, Cheng Y. Investigation of the JASMONATE ZIM-DOMAIN Gene Family Reveals the Canonical JA-Signaling Pathway in Pineapple. BIOLOGY 2022; 11:biology11030445. [PMID: 35336818 PMCID: PMC8945601 DOI: 10.3390/biology11030445] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/17/2022] [Revised: 02/21/2022] [Accepted: 03/09/2022] [Indexed: 11/16/2022]
Abstract
JASMONATE ZIM-DOMAIN (JAZ) proteins are negative regulators of the jasmonate (JA)-signaling pathway and play pivotal roles in plant resistance to biotic and abiotic stresses. Genome-wide identification of JAZ genes has been performed in many plant species. However, systematic information about pineapple (Ananas comosus L. Merr.) JAZ genes (AcJAZs) is still not available. In this study, we identified 14 AcJAZ genes and classified them into five groups along with the Arabidopsis and rice orthologs. The AcJAZ genes have 3–10 exons, and the putative AcJAZ proteins have between two and eight conserved regions, including the TIFY motif and Jas domain. The cis-acting element analysis revealed that the putative promoter regions of AcJAZs contain between three and eight abiotic stress-responsive cis-acting elements. The gene-expression analysis suggested that AcJAZs were expressed differentially during plant development and subjected to regulation by the cold, heat, salt, and osmotic stresses as well as by phytohormones. Moreover, the BiFC analysis of protein interactions among the central JA-signaling regulators showed that AcJAZ4, AcMYC2, AcNINJA, and AcJAM1 could interact with AcJAZ5 and AcJAZ13 in vivo, indicating a canonical JA-signaling pathway in pineapple. These results increase our understanding of the functions of AcJAZs and the responses of the core players in the JA-signaling pathway to abiotic stresses.
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Affiliation(s)
- Li Ye
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, College of Plant Protection, Fujian Agriculture and Forestry University, Fuzhou 350002, China; (L.Y.); (L.C.); (X.Z.); (X.G.); (K.Y.); (F.D.)
- Fujian Provincial Key Laboratory of Haixia Applied Plant Systems Biology, Center for Genomics and Biotechnology, College of Life Science, Fujian Agriculture and Forestry University, Fuzhou 350002, China; (S.J.); (Y.W.); (X.H.); (C.D.); (B.H.); (H.Z.); (P.Z.); (M.A.)
| | - Ling Cao
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, College of Plant Protection, Fujian Agriculture and Forestry University, Fuzhou 350002, China; (L.Y.); (L.C.); (X.Z.); (X.G.); (K.Y.); (F.D.)
- Fujian Provincial Key Laboratory of Haixia Applied Plant Systems Biology, Center for Genomics and Biotechnology, College of Life Science, Fujian Agriculture and Forestry University, Fuzhou 350002, China; (S.J.); (Y.W.); (X.H.); (C.D.); (B.H.); (H.Z.); (P.Z.); (M.A.)
| | - Xuemei Zhao
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, College of Plant Protection, Fujian Agriculture and Forestry University, Fuzhou 350002, China; (L.Y.); (L.C.); (X.Z.); (X.G.); (K.Y.); (F.D.)
- Fujian Provincial Key Laboratory of Haixia Applied Plant Systems Biology, Center for Genomics and Biotechnology, College of Life Science, Fujian Agriculture and Forestry University, Fuzhou 350002, China; (S.J.); (Y.W.); (X.H.); (C.D.); (B.H.); (H.Z.); (P.Z.); (M.A.)
| | - Xinya Guo
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, College of Plant Protection, Fujian Agriculture and Forestry University, Fuzhou 350002, China; (L.Y.); (L.C.); (X.Z.); (X.G.); (K.Y.); (F.D.)
- Fujian Provincial Key Laboratory of Haixia Applied Plant Systems Biology, Center for Genomics and Biotechnology, College of Life Science, Fujian Agriculture and Forestry University, Fuzhou 350002, China; (S.J.); (Y.W.); (X.H.); (C.D.); (B.H.); (H.Z.); (P.Z.); (M.A.)
| | - Kangzhuo Ye
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, College of Plant Protection, Fujian Agriculture and Forestry University, Fuzhou 350002, China; (L.Y.); (L.C.); (X.Z.); (X.G.); (K.Y.); (F.D.)
- Fujian Provincial Key Laboratory of Haixia Applied Plant Systems Biology, Center for Genomics and Biotechnology, College of Life Science, Fujian Agriculture and Forestry University, Fuzhou 350002, China; (S.J.); (Y.W.); (X.H.); (C.D.); (B.H.); (H.Z.); (P.Z.); (M.A.)
| | - Sibo Jiao
- Fujian Provincial Key Laboratory of Haixia Applied Plant Systems Biology, Center for Genomics and Biotechnology, College of Life Science, Fujian Agriculture and Forestry University, Fuzhou 350002, China; (S.J.); (Y.W.); (X.H.); (C.D.); (B.H.); (H.Z.); (P.Z.); (M.A.)
| | - Yu Wang
- Fujian Provincial Key Laboratory of Haixia Applied Plant Systems Biology, Center for Genomics and Biotechnology, College of Life Science, Fujian Agriculture and Forestry University, Fuzhou 350002, China; (S.J.); (Y.W.); (X.H.); (C.D.); (B.H.); (H.Z.); (P.Z.); (M.A.)
- College of Agriculture, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Xiaoxue He
- Fujian Provincial Key Laboratory of Haixia Applied Plant Systems Biology, Center for Genomics and Biotechnology, College of Life Science, Fujian Agriculture and Forestry University, Fuzhou 350002, China; (S.J.); (Y.W.); (X.H.); (C.D.); (B.H.); (H.Z.); (P.Z.); (M.A.)
| | - Chunxing Dong
- Fujian Provincial Key Laboratory of Haixia Applied Plant Systems Biology, Center for Genomics and Biotechnology, College of Life Science, Fujian Agriculture and Forestry University, Fuzhou 350002, China; (S.J.); (Y.W.); (X.H.); (C.D.); (B.H.); (H.Z.); (P.Z.); (M.A.)
- College of Agriculture, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Bin Hu
- Fujian Provincial Key Laboratory of Haixia Applied Plant Systems Biology, Center for Genomics and Biotechnology, College of Life Science, Fujian Agriculture and Forestry University, Fuzhou 350002, China; (S.J.); (Y.W.); (X.H.); (C.D.); (B.H.); (H.Z.); (P.Z.); (M.A.)
- College of Agriculture, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Fang Deng
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, College of Plant Protection, Fujian Agriculture and Forestry University, Fuzhou 350002, China; (L.Y.); (L.C.); (X.Z.); (X.G.); (K.Y.); (F.D.)
- Fujian Provincial Key Laboratory of Haixia Applied Plant Systems Biology, Center for Genomics and Biotechnology, College of Life Science, Fujian Agriculture and Forestry University, Fuzhou 350002, China; (S.J.); (Y.W.); (X.H.); (C.D.); (B.H.); (H.Z.); (P.Z.); (M.A.)
| | - Heming Zhao
- Fujian Provincial Key Laboratory of Haixia Applied Plant Systems Biology, Center for Genomics and Biotechnology, College of Life Science, Fujian Agriculture and Forestry University, Fuzhou 350002, China; (S.J.); (Y.W.); (X.H.); (C.D.); (B.H.); (H.Z.); (P.Z.); (M.A.)
- College of Agriculture, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Ping Zheng
- Fujian Provincial Key Laboratory of Haixia Applied Plant Systems Biology, Center for Genomics and Biotechnology, College of Life Science, Fujian Agriculture and Forestry University, Fuzhou 350002, China; (S.J.); (Y.W.); (X.H.); (C.D.); (B.H.); (H.Z.); (P.Z.); (M.A.)
| | - Mohammad Aslam
- Fujian Provincial Key Laboratory of Haixia Applied Plant Systems Biology, Center for Genomics and Biotechnology, College of Life Science, Fujian Agriculture and Forestry University, Fuzhou 350002, China; (S.J.); (Y.W.); (X.H.); (C.D.); (B.H.); (H.Z.); (P.Z.); (M.A.)
- Guangxi Key Lab of Sugarcane Biology, College of Agriculture, Guangxi University, Nanning 530004, China
| | - Yuan Qin
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, College of Plant Protection, Fujian Agriculture and Forestry University, Fuzhou 350002, China; (L.Y.); (L.C.); (X.Z.); (X.G.); (K.Y.); (F.D.)
- Fujian Provincial Key Laboratory of Haixia Applied Plant Systems Biology, Center for Genomics and Biotechnology, College of Life Science, Fujian Agriculture and Forestry University, Fuzhou 350002, China; (S.J.); (Y.W.); (X.H.); (C.D.); (B.H.); (H.Z.); (P.Z.); (M.A.)
- College of Agriculture, Fujian Agriculture and Forestry University, Fuzhou 350002, China
- Guangxi Key Lab of Sugarcane Biology, College of Agriculture, Guangxi University, Nanning 530004, China
- Correspondence: (Y.Q.); (Y.C.)
| | - Yan Cheng
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, College of Plant Protection, Fujian Agriculture and Forestry University, Fuzhou 350002, China; (L.Y.); (L.C.); (X.Z.); (X.G.); (K.Y.); (F.D.)
- Fujian Provincial Key Laboratory of Haixia Applied Plant Systems Biology, Center for Genomics and Biotechnology, College of Life Science, Fujian Agriculture and Forestry University, Fuzhou 350002, China; (S.J.); (Y.W.); (X.H.); (C.D.); (B.H.); (H.Z.); (P.Z.); (M.A.)
- Correspondence: (Y.Q.); (Y.C.)
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18
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Mondal S, Pramanik K, Panda D, Dutta D, Karmakar S, Bose B. Sulfur in Seeds: An Overview. PLANTS (BASEL, SWITZERLAND) 2022; 11:plants11030450. [PMID: 35161431 PMCID: PMC8838887 DOI: 10.3390/plants11030450] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2021] [Revised: 01/27/2022] [Accepted: 01/28/2022] [Indexed: 05/30/2023]
Abstract
Sulfur is a growth-limiting and secondary macronutrient as well as an indispensable component for several cellular components of crop plants. Over the years various scientists have conducted several experiments on sulfur metabolism based on different aspects of plants. Sulfur metabolism in seeds has immense importance in terms of the different sulfur-containing seed storage proteins, the significance of transporters in seeds, the role of sulfur during the time of seed germination, etc. The present review article is based on an overview of sulfur metabolism in seeds, in respect to source to sink relationships, S transporters present in the seeds, S-regulated seed storage proteins and the importance of sulfur at the time of seed germination. Sulfur is an essential component and a decidable factor for seed yield and the quality of seeds in terms of oil content in oilseeds, storage of qualitative proteins in legumes and has a significant role in carbohydrate metabolism in cereals. In conclusion, a few future perspectives towards a more comprehensive knowledge on S metabolism/mechanism during seed development, storage and germination have also been stated.
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Affiliation(s)
- Sananda Mondal
- Department of Crop Physiology, Institute of Agriculture, Visva-Bharati University, Sriniketan 731236, India;
| | - Kalipada Pramanik
- Department of Agronomy, Institute of Agriculture, Visva-Bharati University, Sriniketan 731236, India;
| | - Debasish Panda
- Department of Crop Physiology, Institute of Agriculture, Visva-Bharati University, Sriniketan 731236, India;
| | - Debjani Dutta
- Department of Plant Physiology, Faculty of Agriculture, Bidhan Chandra Krishi Viswavidyalaya, Mohanpur 741252, India; (D.D.); (S.K.)
| | - Snehashis Karmakar
- Department of Plant Physiology, Faculty of Agriculture, Bidhan Chandra Krishi Viswavidyalaya, Mohanpur 741252, India; (D.D.); (S.K.)
| | - Bandana Bose
- Department of Plant Physiology, Institute of Agricultural Sciences, Banaras Hindu University, Varanasi 221005, India;
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Tan Z, Xie Z, Dai L, Zhang Y, Zhao H, Tang S, Wan L, Yao X, Guo L, Hong D. Genome- and transcriptome-wide association studies reveal the genetic basis and the breeding history of seed glucosinolate content in Brassica napus. PLANT BIOTECHNOLOGY JOURNAL 2022; 20:211-225. [PMID: 34525252 PMCID: PMC8710833 DOI: 10.1111/pbi.13707] [Citation(s) in RCA: 32] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/10/2021] [Revised: 06/25/2021] [Accepted: 09/07/2021] [Indexed: 05/08/2023]
Abstract
A high content of seed glucosinolates and their degradation products imposes anti-nutritional effects on livestock; therefore, persistent efforts are made to reduce the seed GSL content to increase the commercial value of rapeseed meal. Here, we dissected the genetic structure of SGC by genome-wide association studies (GWAS) combined with transcriptome-wide association studies (TWAS). Fifteen reliable quantitative trait loci (QTLs) were identified to be associated with the reduced SGC in modern B. napus cultivars by GWAS. Analysis of the selection strength and haplotypes at these QTLs revealed that low SGC was predominantly generated by the co-selection of qGSL.A02.2, qGSL.C02.1, qGSL.A09.2, and qGSL.C09.1. Integration of the results from TWAS, comprehensive bioinformatics, and POCKET algorithm analyses indicated that BnaC02.GTR2 (BnaC02g42260D) is a candidate gene underlying qGSL.C02.1. Using CRISPR/Cas9-derived Bna.gtr2s knockout mutants, we experimentally verified that both BnaC02.GTR2 and its three paralogs positively regulate seed GSL accumulation but negatively regulated vegetative tissue GSL contents. In addition, we observed smaller seeds with higher seed oil content in these Bna.gtr2 mutants. Furthermore, both RNA-seq and correlation analyses suggested that Bna.GTR2s might play a comprehensive role in seed development, such as amino acid accumulation, GSL synthesis, sugar assimilation, and oil accumulation. This study unravels the breeding selection history of low-SGC improvement and provides new insights into the molecular function of Bna.GTR2s in both seed GSL accumulation and seed development in B. napus.
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Affiliation(s)
- Zengdong Tan
- National Key Laboratory of Crop Genetic ImprovementHuazhong Agricultural UniversityWuhanChina
| | - Zhaoqi Xie
- National Key Laboratory of Crop Genetic ImprovementHuazhong Agricultural UniversityWuhanChina
| | - Lihong Dai
- National Key Laboratory of Crop Genetic ImprovementHuazhong Agricultural UniversityWuhanChina
| | - Yuting Zhang
- National Key Laboratory of Crop Genetic ImprovementHuazhong Agricultural UniversityWuhanChina
| | - Hu Zhao
- National Key Laboratory of Crop Genetic ImprovementHuazhong Agricultural UniversityWuhanChina
| | - Shan Tang
- National Key Laboratory of Crop Genetic ImprovementHuazhong Agricultural UniversityWuhanChina
| | - Lili Wan
- Institute of CropsWuhan Academy of Agricultural SciencesWuhanChina
| | - Xuan Yao
- National Key Laboratory of Crop Genetic ImprovementHuazhong Agricultural UniversityWuhanChina
| | - Liang Guo
- National Key Laboratory of Crop Genetic ImprovementHuazhong Agricultural UniversityWuhanChina
- Hubei Hongshan LaboratoryWuhanChina
| | - Dengfeng Hong
- National Key Laboratory of Crop Genetic ImprovementHuazhong Agricultural UniversityWuhanChina
- Hubei Hongshan LaboratoryWuhanChina
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20
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Song C, Cao Y, Dai J, Li G, Manzoor MA, Chen C, Deng H. The Multifaceted Roles of MYC2 in Plants: Toward Transcriptional Reprogramming and Stress Tolerance by Jasmonate Signaling. FRONTIERS IN PLANT SCIENCE 2022; 13:868874. [PMID: 35548315 PMCID: PMC9082941 DOI: 10.3389/fpls.2022.868874] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/03/2022] [Accepted: 03/17/2022] [Indexed: 05/12/2023]
Abstract
Environmental stress is one of the major restrictions on plant development and foodstuff production. The adaptive response in plants largely occurs through an intricate signaling system, which is crucial for regulating the stress-responsive genes. Myelocytomatosis (MYC) transcription factors are the fundamental regulators of the jasmonate (JA) signaling branch that participates in plant development and multiple stresses. By binding to the cis-acting elements of a large number of stress-responsive genes, JA-responsive transcription factors activate the stress-resistant defense genes. The mechanism of stress responses concerns myriad regulatory processes at the physiological and molecular levels. Discovering stress-related regulatory factors is of great value in disclosing the response mechanisms of plants to biotic or abiotic stress, which could guide the genetic improvement of plant resistance. This review summarizes recent researches in various aspects of MYC2-mediated JA signaling and emphasizes MYC2 involvement in plant growth and stress response.
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Affiliation(s)
- Cheng Song
- College of Biological and Pharmaceutical Engineering, West Anhui University, Lu’an, China
| | - Yunpeng Cao
- Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan, China
| | - Jun Dai
- College of Biological and Pharmaceutical Engineering, West Anhui University, Lu’an, China
| | - Guohui Li
- College of Biological and Pharmaceutical Engineering, West Anhui University, Lu’an, China
| | | | - Cunwu Chen
- College of Biological and Pharmaceutical Engineering, West Anhui University, Lu’an, China
| | - Hui Deng
- College of Biological and Pharmaceutical Engineering, West Anhui University, Lu’an, China
- *Correspondence: Hui Deng,
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21
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Copeland C. Making do: SULFUR DEFICIENCY INDUCED1 regulates seed sulfur content when sulfur is limiting. PLANT PHYSIOLOGY 2021; 187:2344-2345. [PMID: 34890465 DOI: 10.1093/plphys/kiab461] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/10/2021] [Accepted: 09/14/2021] [Indexed: 06/13/2023]
Affiliation(s)
- Charles Copeland
- Department of Plant Microbe Interactions, Max Planck Institute for Plant Breeding Research, 50829 Cologne, Germany
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22
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Aarabi F, Rakpenthai A, Barahimipour R, Gorka M, Alseekh S, Zhang Y, Salem MA, Brückner F, Omranian N, Watanabe M, Nikoloski Z, Giavalisco P, Tohge T, Graf A, Fernie AR, Hoefgen R. Sulfur deficiency-induced genes affect seed protein accumulation and composition under sulfate deprivation. PLANT PHYSIOLOGY 2021; 187:2419-2434. [PMID: 34618078 PMCID: PMC8644457 DOI: 10.1093/plphys/kiab386] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/26/2021] [Accepted: 07/17/2021] [Indexed: 06/01/2023]
Abstract
Sulfur deficiency-induced proteins SDI1 and SDI2 play a fundamental role in sulfur homeostasis under sulfate-deprived conditions (-S) by downregulating glucosinolates. Here, we identified that besides glucosinolate regulation under -S, SDI1 downregulates another sulfur pool, the S-rich 2S seed storage proteins in Arabidopsis (Arabidopsis thaliana) seeds. We identified that MYB28 directly regulates 2S seed storage proteins by binding to the At2S4 promoter. We also showed that SDI1 downregulates 2S seed storage proteins by forming a ternary protein complex with MYB28 and MYC2, another transcription factor involved in the regulation of seed storage proteins. These findings have significant implications for the understanding of plant responses to sulfur deficiency.
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Affiliation(s)
- Fayezeh Aarabi
- Max-Planck-Institute of Molecular Plant Physiology, Am Mühlenberg 1, 14476 Potsdam-Golm, Germany
| | - Apidet Rakpenthai
- Max-Planck-Institute of Molecular Plant Physiology, Am Mühlenberg 1, 14476 Potsdam-Golm, Germany
| | - Rouhollah Barahimipour
- Max-Planck-Institute of Molecular Plant Physiology, Am Mühlenberg 1, 14476 Potsdam-Golm, Germany
| | - Michal Gorka
- Max-Planck-Institute of Molecular Plant Physiology, Am Mühlenberg 1, 14476 Potsdam-Golm, Germany
| | - Saleh Alseekh
- Max-Planck-Institute of Molecular Plant Physiology, Am Mühlenberg 1, 14476 Potsdam-Golm, Germany
| | - Youjun Zhang
- Max-Planck-Institute of Molecular Plant Physiology, Am Mühlenberg 1, 14476 Potsdam-Golm, Germany
- Center of Plant Systems Biology and Biotechnology, 4000 Plovdiv, Bulgaria
| | - Mohamed A Salem
- Max-Planck-Institute of Molecular Plant Physiology, Am Mühlenberg 1, 14476 Potsdam-Golm, Germany
- Department of Pharmacognosy, Faculty of Pharmacy, Menoufia University, Gamal Abd El Nasr St, Shibin Elkom, Menoufia 32511, Egypt
| | - Franziska Brückner
- Max-Planck-Institute of Molecular Plant Physiology, Am Mühlenberg 1, 14476 Potsdam-Golm, Germany
| | - Nooshin Omranian
- Max-Planck-Institute of Molecular Plant Physiology, Am Mühlenberg 1, 14476 Potsdam-Golm, Germany
| | - Mutsumi Watanabe
- Max-Planck-Institute of Molecular Plant Physiology, Am Mühlenberg 1, 14476 Potsdam-Golm, Germany
- Graduate School of Biological Sciences, Nara Institute of Science and Technology, Ikoma, Nara 630-0192, Japan
| | - Zoran Nikoloski
- Max-Planck-Institute of Molecular Plant Physiology, Am Mühlenberg 1, 14476 Potsdam-Golm, Germany
- Center of Plant Systems Biology and Biotechnology, 4000 Plovdiv, Bulgaria
- Bioinformatics, Institute of Biochemistry and Biology, University of Potsdam, Karl Liebknecht Str. 24-25, 14476 Potsdam-Golm, Germany
| | - Patrick Giavalisco
- Max-Planck-Institute of Molecular Plant Physiology, Am Mühlenberg 1, 14476 Potsdam-Golm, Germany
- Max Planck Institute for Biology of Ageing, Joseph Stelzmann Str. 9b, Cologne 50931, Germany
| | - Takayuki Tohge
- Max-Planck-Institute of Molecular Plant Physiology, Am Mühlenberg 1, 14476 Potsdam-Golm, Germany
- Graduate School of Biological Sciences, Nara Institute of Science and Technology, Ikoma, Nara 630-0192, Japan
| | - Alexander Graf
- Max-Planck-Institute of Molecular Plant Physiology, Am Mühlenberg 1, 14476 Potsdam-Golm, Germany
| | - Alisdair R Fernie
- Max-Planck-Institute of Molecular Plant Physiology, Am Mühlenberg 1, 14476 Potsdam-Golm, Germany
| | - Rainer Hoefgen
- Max-Planck-Institute of Molecular Plant Physiology, Am Mühlenberg 1, 14476 Potsdam-Golm, Germany
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23
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Breeding Canola ( Brassica napus L.) for Protein in Feed and Food. PLANTS 2021; 10:plants10102220. [PMID: 34686029 PMCID: PMC8539702 DOI: 10.3390/plants10102220] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/30/2021] [Revised: 10/03/2021] [Accepted: 10/11/2021] [Indexed: 01/12/2023]
Abstract
Interest in canola (Brassica napus L.). In response to this interest, scientists have been tasked with altering and optimizing the protein production chain to ensure canola proteins are safe for consumption and economical to produce. Specifically, the role of plant breeders in developing suitable varieties with the necessary protein profiles is crucial to this interdisciplinary endeavour. In this article, we aim to provide an overarching review of the canola protein chain from the perspective of a plant breeder, spanning from the genetic regulation of seed storage proteins in the crop to advancements of novel breeding technologies and their application in improving protein quality in canola. A review on the current uses of canola meal in animal husbandry is presented to underscore potential limitations for the consumption of canola meal in mammals. General discussions on the allergenic potential of canola proteins and the regulation of novel food products are provided to highlight some of the challenges that will be encountered on the road to commercialization and general acceptance of canola protein as a dietary protein source.
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24
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Arabidopsis LSH8 Positively Regulates ABA Signaling by Changing the Expression Pattern of ABA-Responsive Proteins. Int J Mol Sci 2021; 22:ijms221910314. [PMID: 34638657 PMCID: PMC8508927 DOI: 10.3390/ijms221910314] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2021] [Revised: 09/19/2021] [Accepted: 09/23/2021] [Indexed: 01/17/2023] Open
Abstract
Phytohormone ABA regulates the expression of numerous genes to significantly affect seed dormancy, seed germination and early seedling responses to biotic and abiotic stresses. However, the function of many ABA-responsive genes remains largely unknown. In order to improve the ABA-related signaling network, we conducted a large-scale ABA phenotype screening. LSH, an important transcription factor family, extensively participates in seedling development and floral organogenesis in plants, but whether its family genes are involved in the ABA signaling pathway has not been reported. Here we describe a new function of the transcription factor LSH8 in an ABA signaling pathway. In this study, we found that LSH8 was localized in the nucleus, and the expression level of LSH8 was significantly induced by exogenous ABA at the transcription level and protein level. Meanwhile, seed germination and root length measurements revealed that lsh8 mutant lines were ABA insensitive, whereas LSH8 overexpression lines showed an ABA-hypersensitive phenotype. With further TMT labeling quantitative proteomic analysis, we found that under ABA treatment, ABA-responsive proteins (ARPs) in the lsh8 mutant presented different changing patterns with those in wild-type Col4. Additionally, the number of ARPs contained in the lsh8 mutant was 397, six times the number in wild-type Col4. In addition, qPCR analysis found that under ABA treatment, LSH8 positively mediated the expression of downstream ABA-related genes of ABI3, ABI5, RD29B and RAB18. These results indicate that in Arabidopsis, LSH8 is a novel ABA regulator that could specifically change the expression pattern of APRs to positively mediate ABA responses.
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25
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Teng Z, Zheng W, Yu Y, Hong SB, Zhu Z, Zang Y. Effects of BrMYC2/3/4 on Plant Development, Glucosinolate Metabolism, and Sclerotinia sclerotiorum Resistance in Transgenic Arabidopsis thaliana. FRONTIERS IN PLANT SCIENCE 2021; 12:707054. [PMID: 34539701 PMCID: PMC8446384 DOI: 10.3389/fpls.2021.707054] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/08/2021] [Accepted: 07/20/2021] [Indexed: 06/13/2023]
Abstract
MYC2/3/4, known as a basic helix-loop-helix (bHLH) transcription factor, directly activate the genes involved in diverse plant development and secondary metabolites biosynthesis. In this study, we identified and cloned five MYC paralogs (BrMYC2/3-1/3-2/4-1/4-2) from Chinese cabbage (Brassica rapa ssp. pekinensis). In-silico analyses for the physicochemical properties suggested that BrMYC2/3-1/3-2/4-2/4-3 are unstable hydrophobic and acidic proteins, while BrMYC4-1 is an unstable hydrophobic and basic protein. BrMYC2/3/4 belong to the bHLH superfamily and are closely related to AthMYC2/3/4 orthologs that mediate the regulation of various secondary metabolites. It was demonstrated that BrMYC2/3/4-GFP fusion protein localized in the nucleus and expression levels of five BrMYC2/3/4 homologous genes all elevated relative to control (Ctrl). When expressed in Arabidopsis under the control of 35S promoter, each of the BrMYC2/3-1/3-2/4-1/4-2 transgenes differentially influenced root and shoot elongation, vegetative phase change, flowering time, plant height and tiller number after flowering, and seed production. Despite the variation of phenotypes between the transgenic lines, all the lines except for BrMYC4-2 exhibited shorter seed length, less seed weight, higher accumulation of glucosinolates (GSs), and resistance to Sclerotinia sclerotiorum than Ctrl. Notably, BrMYC2 overexpression (OE) line significantly reduced the lengths of root and hypocotyl, seed length, and weight, along with faster bolting time and strikingly higher accumulation of total GSs. Accumulation of GSs at the highest levels in the BrMYC2 OE line conferred the highest resistance to S. sclerotiorum. Unlike BrMYC3 OE and BrMYC4 OE , BrMYC2 OE stimulated the growth of plant height after fluorescence. The results of this study point to the BrMYC2 overexpression that may provide a beneficial effect on plant growth and development via plant resistance to the fungal pathogen.
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Affiliation(s)
- Zhiyan Teng
- Collaborative Innovation Center for Efficient and Green Production of Agriculture in Mountainous Areas of Zhejiang Province, College of Horticulture Science, Zhejiang A&F University, Hangzhou, China
| | - Weiwei Zheng
- Collaborative Innovation Center for Efficient and Green Production of Agriculture in Mountainous Areas of Zhejiang Province, College of Horticulture Science, Zhejiang A&F University, Hangzhou, China
| | - Youjian Yu
- Collaborative Innovation Center for Efficient and Green Production of Agriculture in Mountainous Areas of Zhejiang Province, College of Horticulture Science, Zhejiang A&F University, Hangzhou, China
| | - Seung-Beom Hong
- Department of Biotechnology, University of Houston Clear Lake, Houston, TX, United States
| | - Zhujun Zhu
- Collaborative Innovation Center for Efficient and Green Production of Agriculture in Mountainous Areas of Zhejiang Province, College of Horticulture Science, Zhejiang A&F University, Hangzhou, China
| | - Yunxiang Zang
- Collaborative Innovation Center for Efficient and Green Production of Agriculture in Mountainous Areas of Zhejiang Province, College of Horticulture Science, Zhejiang A&F University, Hangzhou, China
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26
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Control of seed size by jasmonate. SCIENCE CHINA-LIFE SCIENCES 2021; 64:1215-1226. [DOI: 10.1007/s11427-020-1899-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/27/2020] [Accepted: 02/08/2021] [Indexed: 01/23/2023]
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27
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Aarabi F, Naake T, Fernie AR, Hoefgen R. Coordinating Sulfur Pools under Sulfate Deprivation. TRENDS IN PLANT SCIENCE 2020; 25:1227-1239. [PMID: 32800669 DOI: 10.1016/j.tplants.2020.07.007] [Citation(s) in RCA: 43] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/16/2020] [Revised: 07/09/2020] [Accepted: 07/14/2020] [Indexed: 05/22/2023]
Abstract
Plants display manifold metabolic changes on sulfate deficiency (S deficiency) with all sulfur-containing pools of primary and secondary metabolism affected. O-Acetylserine (OAS), whose levels are rapidly altered on S deficiency, is correlated tightly with novel regulators of plant sulfur metabolism that have key roles in balancing plant sulfur pools, including the Sulfur Deficiency Induced genes (SDI1 and SDI2), More Sulfur Accumulation1 (MSA1), and GGCT2;1. Despite the importance of OAS in the coordination of S pools under stress, mechanisms of OAS perception and signaling have remained elusive. Here, we put particular focus on the general OAS-responsive genes but also elaborate on the specific roles of SDI1 and SDI2 genes, which downregulate the glucosinolate (GSL) pool size. We also highlight the key open questions in sulfur partitioning.
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Affiliation(s)
- Fayezeh Aarabi
- Max Planck Institute of Molecular Plant Physiology, Am Mühlenberg 1, 14476 Potsdam-Golm, Germany
| | - Thomas Naake
- Max Planck Institute of Molecular Plant Physiology, Am Mühlenberg 1, 14476 Potsdam-Golm, Germany
| | - Alisdair R Fernie
- Max Planck Institute of Molecular Plant Physiology, Am Mühlenberg 1, 14476 Potsdam-Golm, Germany.
| | - Rainer Hoefgen
- Max Planck Institute of Molecular Plant Physiology, Am Mühlenberg 1, 14476 Potsdam-Golm, Germany.
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28
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Liu Z, Zheng L, Pu L, Ma X, Wang X, Wu Y, Ming H, Wang Q, Zhang G. ENO2 Affects the Seed Size and Weight by Adjusting Cytokinin Content and Forming ENO2-bZIP75 Complex in Arabidopsis thaliana. FRONTIERS IN PLANT SCIENCE 2020; 11:574316. [PMID: 32983222 PMCID: PMC7479207 DOI: 10.3389/fpls.2020.574316] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/03/2020] [Accepted: 08/13/2020] [Indexed: 06/11/2023]
Abstract
Arabidopsis thaliana ENO2 (AtENO2) encodes two proteins AtENO2 (enolase) and AtMBP-1 (c-Myc binding protein 1-like). The loss of AtENO2 function causes the constitutive developmental defects which are correlated with reduced enolase activity, but not AtMBP-1 transcript abundance. However, the regulation mechanism of AtENO2 on the seed properties is still not clear. In this study, we found that the mutation of AtENO2 reduced the seed size and weight. The level of glucose in seed was significantly elevated but that of starch was decreased in AtENO2 mutants compared to WT plants. We also found that AtENO2 mutation reduced the content of cytokinin which resulted in smaller cotyledons. The RNA-seq data showed that there were 1892 differentially expressed genes and secondary metabolic pathways were significantly enriched. Instead of AtMBP-1, AtENO2 protein interacted with AtbZIP75 which may mediate the secondary metabolism. Therefore, ENO2 alters the size and weight of seeds which is not only regulated by the content of cytokinin and secondary metabolism, but may be affected by the interaction of ENO2 and bZIP57. These results are helpful to understand the novel function of AtENO2 which provide a foundation for further exploration of the key candidate genes for crop breeding.
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Affiliation(s)
- Zijin Liu
- Beijing Key Laboratory of Gene Resource and Molecular Development, College of Life Sciences, Beijing Normal University, Beijing, China
| | - Lamei Zheng
- Beijing Key Laboratory of Gene Resource and Molecular Development, College of Life Sciences, Beijing Normal University, Beijing, China
| | - Li Pu
- Biotechnology Research Institute, Chinese Academy of Agriculture Sciences, Beijing, China
| | - Xiaofeng Ma
- Beijing Key Laboratory of Gene Resource and Molecular Development, College of Life Sciences, Beijing Normal University, Beijing, China
| | - Xing Wang
- Beijing Key Laboratory of Gene Resource and Molecular Development, College of Life Sciences, Beijing Normal University, Beijing, China
| | - Yu Wu
- Beijing Key Laboratory of Gene Resource and Molecular Development, College of Life Sciences, Beijing Normal University, Beijing, China
| | - Hainan Ming
- Beijing Key Laboratory of Gene Resource and Molecular Development, College of Life Sciences, Beijing Normal University, Beijing, China
| | - Qing Wang
- Institute of Radiation Botany, Beijing Radiation Center, Beijing, China
| | - Genfa Zhang
- Beijing Key Laboratory of Gene Resource and Molecular Development, College of Life Sciences, Beijing Normal University, Beijing, China
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29
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Liu Z, Li N, Zhang Y, Li Y. Transcriptional repression of GIF1 by the KIX-PPD-MYC repressor complex controls seed size in Arabidopsis. Nat Commun 2020; 11:1846. [PMID: 32296056 PMCID: PMC7160150 DOI: 10.1038/s41467-020-15603-3] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2019] [Accepted: 03/12/2020] [Indexed: 11/17/2022] Open
Abstract
Seed size is a key agronomic trait that greatly determines plant yield. Elucidating the molecular mechanism underlying seed size regulation is also an important question in developmental biology. Here, we show that the KIX-PPD-MYC-GIF1 pathway plays a crucial role in seed size control in Arabidopsis thaliana. Disruption of KIX8/9 and PPD1/2 causes large seeds due to increased cell proliferation and cell elongation in the integuments. KIX8/9 and PPD1/2 interact with transcription factors MYC3/4 to form the KIX-PPD-MYC complex in Arabidopsis. The KIX-PPD-MYC complex associates with the typical G-box sequence in the promoter of GRF-INTERACTING FACTOR 1 (GIF1), which promotes seed growth, and represses its expression. Genetic analyses support that KIX8/9, PPD1/2, MYC3/4, and GIF1 function in a common pathway to control seed size. Thus, our results reveal a genetic and molecular mechanism by which the transcription factors MYC3/4 recruit KIX8/9 and PPD1/2 to the promoter of GIF1 and repress its expression, thereby determining seed size in Arabidopsis. Seed size is an important determinant of plant yield. Here, Liu et al. show that a KIX-PPD repressor complex and MYC transcription factors interact with the G-box motif in the promoter of GRF-INTERACTING FACTOR 1 to regulate seed size by influencing cell proliferation and elongation in the integument.
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Affiliation(s)
- Zupei Liu
- State Key Laboratory of Plant Cell and Chromosome Engineering, CAS Centre for Excellence in Molecular Plant Biology, Institute of Genetics and Developmental Biology, The Innovative Academy of Seed Design, Chinese Academy of Sciences, 100101, Beijing, China.,University of Chinese Academy of Sciences, 100039, Beijing, China
| | - Na Li
- State Key Laboratory of Plant Cell and Chromosome Engineering, CAS Centre for Excellence in Molecular Plant Biology, Institute of Genetics and Developmental Biology, The Innovative Academy of Seed Design, Chinese Academy of Sciences, 100101, Beijing, China
| | - Yueying Zhang
- State Key Laboratory of Plant Cell and Chromosome Engineering, CAS Centre for Excellence in Molecular Plant Biology, Institute of Genetics and Developmental Biology, The Innovative Academy of Seed Design, Chinese Academy of Sciences, 100101, Beijing, China.,University of Chinese Academy of Sciences, 100039, Beijing, China
| | - Yunhai Li
- State Key Laboratory of Plant Cell and Chromosome Engineering, CAS Centre for Excellence in Molecular Plant Biology, Institute of Genetics and Developmental Biology, The Innovative Academy of Seed Design, Chinese Academy of Sciences, 100101, Beijing, China. .,University of Chinese Academy of Sciences, 100039, Beijing, China.
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Chen S, Zhao H, Luo T, Liu Y, Nie X, Li H. Characteristics and Expression Pattern of MYC Genes in Triticum aestivum, Oryza sativa, and Brachypodium distachyon. PLANTS (BASEL, SWITZERLAND) 2019; 8:E274. [PMID: 31398900 PMCID: PMC6724133 DOI: 10.3390/plants8080274] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/29/2019] [Revised: 08/03/2019] [Accepted: 08/06/2019] [Indexed: 11/16/2022]
Abstract
Myelocytomatosis oncogenes (MYC) transcription factors (TFs) belong to basic helix-loop-helix (bHLH) TF family and have a special bHLH_MYC_N domain in the N-terminal region. Presently, there is no detailed and systematic analysis of MYC TFs in wheat, rice, and Brachypodium distachyon. In this study, 26 TaMYC, 7 OsMYC, and 7 BdMYC TFs were identified and their features were characterized. Firstly, they contain a JAZ interaction domain (JID) and a putative transcriptional activation domain (TAD) in the bHLH_MYC_N region and a BhlH region in the C-terminal region. In some cases, the bHLH region is followed by a leucine zipper region; secondly, they display tissue-specific expression patterns: wheat MYC genes are mainly expressed in leaves, rice MYC genes are highly expressed in stems, and B. distachyon MYC genes are mainly expressed in inflorescences. In addition, three types of cis-elements, including plant development/growth-related, hormone-related, and abiotic stresses-related were identified in different MYC gene promoters. In combination with the previous studies, these results indicate that MYC TFs mainly function in growth and development, as well as in response to stresses. This study laid a foundation for the further functional elucidation of MYC genes.
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Affiliation(s)
- Shoukun Chen
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Agronomy, Northwest A&F University, Yangling 712000, China
| | - Hongyan Zhao
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Agronomy, Northwest A&F University, Yangling 712000, China
| | - Tengli Luo
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Agronomy, Northwest A&F University, Yangling 712000, China
| | - Yue Liu
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Agronomy, Northwest A&F University, Yangling 712000, China
| | - Xiaojun Nie
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Agronomy, Northwest A&F University, Yangling 712000, China.
| | - Haifeng Li
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Agronomy, Northwest A&F University, Yangling 712000, China.
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Wu X, Xu S, Zhao P, Zhang X, Yao X, Sun Y, Fang R, Ye J. The Orthotospovirus nonstructural protein NSs suppresses plant MYC-regulated jasmonate signaling leading to enhanced vector attraction and performance. PLoS Pathog 2019; 15:e1007897. [PMID: 31206553 PMCID: PMC6598649 DOI: 10.1371/journal.ppat.1007897] [Citation(s) in RCA: 50] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2019] [Revised: 06/27/2019] [Accepted: 06/05/2019] [Indexed: 11/19/2022] Open
Abstract
Pandemics of vector-borne human and plant diseases often depend on the behaviors
of their arthropod vectors. Arboviruses, including many bunyaviruses, manipulate
vector behavior to accelerate their own transmission to vertebrates, birds,
insects, and plants. However, the molecular mechanism underlying this
manipulation remains elusive. Here, we report that the non-structural protein
NSs of Tomato spotted wilt orthotospovirus, a prototype of the
Tospoviridae family and the
Orthotospovirus genus, is a key viral factor that
indirectly modifies vector preference and increases vector performance. NSs
suppresses the biosynthesis of plant volatile monoterpenes, which serve as
repellents of the vector western flower thrips (WFT, Frankliniella
occidentalis). NSs directly interacts with MYC2, the jasmonate (JA)
signaling master regulator and its two close homologs MYC3 and MYC4, to disable
JA-mediated activation of terpene synthase genes. The
dysfunction of the MYCs subsequently attenuates host defenses, increases the
attraction of thrips, and improves thrips fitness. Moreover, MYC2 associated
with NSs of Tomato zonate spot orthotospovirus, another Euro/Asian-type
orthotospovirus, suggesting that MYC2 is an evolutionarily conserved target of
Orthotospovirus species for suppression of terpene-based
resistance to promote vector performance. These findings elucidate the molecular
mechanism through which an orthotospovirus indirectly manipulates vector
behaviors and therefore facilitates pathogen transmission. Our results provide
insights into the molecular mechanisms by which Orthotospovirus
NSs counteracts plant immunity for pathogen transmission. Most bunyaviruses are transmitted by arthropod vectors, and some of them can
modify the behaviors of their arthropod vectors to increase transmission to
mammals, birds, and plants. NSs is a non-structural bunyavirus protein with
multiple functions that acts as an avirulence determinant and silencing
suppressor. In this study, we identified a new function of NSs as a conserved
manipulator of vector behavior via plant. NSs suppresses jasmonate-mediated
plant immunity against thrips by directly interacting with several homologs of
MYC transcription factors, the core regulators of the jasmonate-signaling
pathway. This hijacking by NSs enhances thrips preference and performance.
Therefore, our data support the hypothesis that MYC2 is a convergent target that
plant pathogens manipulate to promote their survival in plants.
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Affiliation(s)
- Xiujuan Wu
- State Key Laboratory of Plant Genomics, Institute of Microbiology,
Chinese Academy of Sciences, Beijing, China
- University of the Chinese Academy of Sciences, Beijing,
China
| | - Shuang Xu
- State Key Laboratory of Plant Genomics, Institute of Microbiology,
Chinese Academy of Sciences, Beijing, China
- University of the Chinese Academy of Sciences, Beijing,
China
| | - Pingzhi Zhao
- State Key Laboratory of Plant Genomics, Institute of Microbiology,
Chinese Academy of Sciences, Beijing, China
| | - Xuan Zhang
- State Key Laboratory of Plant Genomics, Institute of Microbiology,
Chinese Academy of Sciences, Beijing, China
| | - Xiangmei Yao
- State Key Laboratory of Plant Genomics, Institute of Microbiology,
Chinese Academy of Sciences, Beijing, China
| | - Yanwei Sun
- State Key Laboratory of Plant Genomics, Institute of Microbiology,
Chinese Academy of Sciences, Beijing, China
| | - Rongxiang Fang
- State Key Laboratory of Plant Genomics, Institute of Microbiology,
Chinese Academy of Sciences, Beijing, China
- University of the Chinese Academy of Sciences, Beijing,
China
| | - Jian Ye
- State Key Laboratory of Plant Genomics, Institute of Microbiology,
Chinese Academy of Sciences, Beijing, China
- University of the Chinese Academy of Sciences, Beijing,
China
- * E-mail:
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Gacek K, Bartkowiak-Broda I, Batley J. Genetic and Molecular Regulation of Seed Storage Proteins (SSPs) to Improve Protein Nutritional Value of Oilseed Rape ( Brassica napus L.) Seeds. FRONTIERS IN PLANT SCIENCE 2018; 9:890. [PMID: 30013586 PMCID: PMC6036235 DOI: 10.3389/fpls.2018.00890] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2018] [Accepted: 06/07/2018] [Indexed: 05/20/2023]
Abstract
The world-wide demand for additional protein sources for human nutrition and animal feed keeps rising due to rapidly growing world population. Oilseed rape is a second important oil producing crop and the by-product of the oil production is a protein rich meal. The protein in rapeseed meal finds its application in animal feed and various industrial purposes, but its improvement is of great interest, especially for non-ruminants and poultry feed. To be able to manipulate the quality and quantity of seed protein in oilseed rape, understanding genetic architecture of seed storage protein (SSPs) synthesis and accumulation in this crop species is of great interest. For this, application of modern molecular breeding tools such as whole genome sequencing, genotyping, association mapping, and genome editing methods implemented in oilseed rape seed protein improvement would be of great interest. This review examines current knowledge and opportunities to manipulate of SSPs in oilseed rape to improve its quality, quantity and digestibility.
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Affiliation(s)
- Katarzyna Gacek
- Oilseed Crops Research Centre, Plant Breeding and Acclimatization Institute-National Research Institute, Poznań, Poland
| | - Iwona Bartkowiak-Broda
- Oilseed Crops Research Centre, Plant Breeding and Acclimatization Institute-National Research Institute, Poznań, Poland
| | - Jacqueline Batley
- School of Biological Sciences, The University of Western Australia, Crawley, WA, Australia
- *Correspondence: Jacqueline Batley,
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Glazinska P, Wojciechowski W, Kulasek M, Glinkowski W, Marciniak K, Klajn N, Kesy J, Kopcewicz J. De novo Transcriptome Profiling of Flowers, Flower Pedicels and Pods of Lupinus luteus (Yellow Lupine) Reveals Complex Expression Changes during Organ Abscission. FRONTIERS IN PLANT SCIENCE 2017; 8:641. [PMID: 28512462 PMCID: PMC5412092 DOI: 10.3389/fpls.2017.00641] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/30/2016] [Accepted: 04/10/2017] [Indexed: 05/03/2023]
Abstract
Yellow lupine (Lupinus luteus L., Taper c.), a member of the legume family (Fabaceae L.), has an enormous practical importance. Its excessive flower and pod abscission represents an economic drawback, as proper flower and seed formation and development is crucial for the plant's productivity. Generative organ detachment takes place at the basis of the pedicels, within a specialized group of cells collectively known as the abscission zone (AZ). During plant growth these cells become competent to respond to specific signals that trigger separation and lead to the abolition of cell wall adhesion. Little is known about the molecular network controlling the yellow lupine organ abscission. The aim of our study was to establish the divergences and similarities in transcriptional networks in the pods, flowers and flower pedicels abscised or maintained on the plant, and to identify genes playing key roles in generative organ abscission in yellow lupine. Based on de novo transcriptome assembly, we identified 166,473 unigenes representing 219,514 assembled unique transcripts from flowers, flower pedicels and pods undergoing abscission and from control organs. Comparison of the cDNA libraries from dropped and control organs helped in identifying 1,343, 2,933 and 1,491 differentially expressed genes (DEGs) in the flowers, flower pedicels and pods, respectively. In DEG analyses, we focused on genes involved in phytohormonal regulation, cell wall functioning and metabolic pathways. Our results indicate that auxin, ethylene and gibberellins are some of the main factors engaged in generative organ abscission. Identified 28 DEGs common for all library comparisons are involved in cell wall functioning, protein metabolism, water homeostasis and stress response. Interestingly, among the common DEGs we also found an miR169 precursor, which is the first evidence of micro RNA engaged in abscission. A KEGG pathway enrichment analysis revealed that the identified DEGs were predominantly involved in carbohydrate and amino acid metabolism, but some other pathways were also targeted. This study represents the first comprehensive transcriptome-based characterization of organ abscission in L. luteus and provides a valuable data source not only for understanding the abscission signaling pathway in yellow lupine, but also for further research aimed at improving crop yields.
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Affiliation(s)
- Paulina Glazinska
- Department of Biology and Environmental Science, Nicolaus Copernicus UniversityTorun, Poland
- Centre for Modern Interdisciplinary Technologies, Nicolaus Copernicus UniversityTorun, Poland
| | - Waldemar Wojciechowski
- Department of Biology and Environmental Science, Nicolaus Copernicus UniversityTorun, Poland
- Centre for Modern Interdisciplinary Technologies, Nicolaus Copernicus UniversityTorun, Poland
| | - Milena Kulasek
- Department of Biology and Environmental Science, Nicolaus Copernicus UniversityTorun, Poland
| | - Wojciech Glinkowski
- Department of Biology and Environmental Science, Nicolaus Copernicus UniversityTorun, Poland
| | - Katarzyna Marciniak
- Department of Biology and Environmental Science, Nicolaus Copernicus UniversityTorun, Poland
- Centre for Modern Interdisciplinary Technologies, Nicolaus Copernicus UniversityTorun, Poland
| | - Natalia Klajn
- Department of Biology and Environmental Science, Nicolaus Copernicus UniversityTorun, Poland
| | - Jacek Kesy
- Department of Biology and Environmental Science, Nicolaus Copernicus UniversityTorun, Poland
| | - Jan Kopcewicz
- Department of Biology and Environmental Science, Nicolaus Copernicus UniversityTorun, Poland
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