1
|
Bhoomika S, Shalunkhe SR, Sakthi AR, Saraswathi T, Manonmani S, Raveendran M, Sudha M. CRISPR-Cas9: Unraveling Genetic Secrets to Enhance Floral and Fruit Traits in Tomato. Mol Biotechnol 2024:10.1007/s12033-024-01290-8. [PMID: 39377911 DOI: 10.1007/s12033-024-01290-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2024] [Accepted: 09/17/2024] [Indexed: 10/09/2024]
Abstract
Tomato, a globally consumed vegetable, possesses vast genetic diversity, making it suitable for genetic manipulation using various genetic improvement techniques. Tomatoes are grown extensively for their market value and health benefits, primarily contributed by enhanced yield and nutritional value respectively, influenced by floral and fruit traits. Floral morphology is maintained by genes involved in meristem size control, regulation of inflorescence transition, and pollen development. SP (SELF-PRUNING) and SP5G (SELF-PRUNING 5G) determine growth habit and flowering time. RIN (RIPENING INHIBITOR) and PG (POLYGALACTURONASE) are responsible for the shelf life of fruits. In addition to this, nutrition-enriched tomatoes have been developed in recent times. In this review, we comprehensively discuss the major genes influencing floral morphology, flowering time, fruit size, fruit shape, shelf life, and nutritional value, ultimately resulting in enhanced yield. Additionally, we address the advances in CRISPR/Cas9 applied for the genetic improvement of tomatoes along with prospects of areas in which research development in terms of tomato genetic improvement has to be advanced.
Collapse
Affiliation(s)
- S Bhoomika
- Department of Plant Biotechnology, Centre of Plant Molecular Biology and Biotechnology, Tamil Nadu Agricultural University, Coimbatore, 641003, India
| | - Shubham Rajaram Shalunkhe
- Department of Plant Biotechnology, Centre of Plant Molecular Biology and Biotechnology, Tamil Nadu Agricultural University, Coimbatore, 641003, India
| | - A R Sakthi
- Department of Plant Biotechnology, Centre of Plant Molecular Biology and Biotechnology, Tamil Nadu Agricultural University, Coimbatore, 641003, India
| | - T Saraswathi
- Department of Medicinal and Aromatic Crops, Horticultural College and Research Institute, Tamil Nadu Agricultural University, Coimbatore, 641003, India
| | - S Manonmani
- Department of Rice, Centre of Plant Breeding and Genetics, Tamil Nadu Agricultural University, Coimbatore, 641003, India
| | - M Raveendran
- Department of Plant Biotechnology, Centre of Plant Molecular Biology and Biotechnology, Tamil Nadu Agricultural University, Coimbatore, 641003, India
| | - M Sudha
- Department of Plant Biotechnology, Centre of Plant Molecular Biology and Biotechnology, Tamil Nadu Agricultural University, Coimbatore, 641003, India.
| |
Collapse
|
2
|
Dong Y, Huang L, Liu J, Nong H, Li H, Zhang W, Zheng H, Tao J. Genome-wide identified VvOFP genes family and VvOFP4 functional characterization provide insight into fruit shape in grape. Int J Biol Macromol 2024; 276:133880. [PMID: 39025176 DOI: 10.1016/j.ijbiomac.2024.133880] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2024] [Revised: 07/12/2024] [Accepted: 07/13/2024] [Indexed: 07/20/2024]
Abstract
Ovate Family Proteins (OFPs) are emerging as novel transcriptional regulators of fruit shape. Despite their established role in various species, their involvement in regulating grape fruit shape remains understudied. This study encompassed a comprehensive evaluation of 16 grape OFP genes in total at the whole genome level. Phylogenetic and synteny analyses established a close relationship between grape VvOFP genes and their tomato counterparts. Expression profiling post-treatment with gibberellic acid (GA3) and thidiazuron (TDZ) revealed that certain OFP genes responded to these regulators, with VvOFP4 showing peak expression three days post-anthesis. Functional assays via overexpression of VvOFP4 in tobacco and tomato altered the morphology of both vegetative and reproductive organs, including leaves, stamens, and fruits/pods. Paraffin sections of transgenic tobacco stems and tomato fruits demonstrated that VvOFP4 overexpression modifies cell dimensions, leading to changes in organ morphology. Additionally, treatments with GA3 and TDZ similarly influenced the shape of grape pulp cells and thereby the overall fruit morphology. These findings suggest that the VvOFP4 gene plays a crucial role in fruit shape determination by modulating cell shape and presents a potential target for future grape breeding programs aimed at diversifying fruit shapes.
Collapse
Affiliation(s)
- Yang Dong
- Sanya Institute of Nanjing Agricultural University, College of Horticulture, Nanjing Agricultural University, Nanjing 210095, China
| | - Liyuan Huang
- Sanya Institute of Nanjing Agricultural University, College of Horticulture, Nanjing Agricultural University, Nanjing 210095, China
| | - Jing Liu
- Sanya Institute of Nanjing Agricultural University, College of Horticulture, Nanjing Agricultural University, Nanjing 210095, China
| | - Huilan Nong
- Sanya Institute of Nanjing Agricultural University, College of Horticulture, Nanjing Agricultural University, Nanjing 210095, China
| | - Haoran Li
- Sanya Institute of Nanjing Agricultural University, College of Horticulture, Nanjing Agricultural University, Nanjing 210095, China
| | - Wen Zhang
- Institute of Horticultural Crops, Xinjiang Academy of Agricultural Science, Urumqi 830001, Xinjiang, China
| | - Huan Zheng
- Sanya Institute of Nanjing Agricultural University, College of Horticulture, Nanjing Agricultural University, Nanjing 210095, China
| | - Jianmin Tao
- Sanya Institute of Nanjing Agricultural University, College of Horticulture, Nanjing Agricultural University, Nanjing 210095, China; Institute of Horticultural Crops, Xinjiang Academy of Agricultural Science, Urumqi 830001, Xinjiang, China.
| |
Collapse
|
3
|
Shen H, Luo B, Ding Y, Xiao H, Chen G, Yang Z, Hu Z, Wu T. The YABBY Transcription Factor, SlYABBY2a, Positively Regulates Fruit Septum Development and Ripening in Tomatoes. Int J Mol Sci 2024; 25:5206. [PMID: 38791245 PMCID: PMC11121019 DOI: 10.3390/ijms25105206] [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: 04/03/2024] [Revised: 05/06/2024] [Accepted: 05/08/2024] [Indexed: 05/26/2024] Open
Abstract
The tomato fruit is a complex organ and is composed of various structures from the inside out, such as columella, septum, and placenta. However, our understanding of the development and function of these internal structures remains limited. In this study, we identified a plant-specific YABBY protein, SlYABBY2a, in the tomato (Solanum lycopersicum). SlYABBY2a exhibits relatively high expression levels among the nine YABBY genes in tomatoes and shows specific expression in the septum of the fruit. Through the use of a gene-editing technique performed by CRISPR/Cas9, we noticed defects in septum development in the Slyabby2a mutant fruits, leading to the inward concavity of the fruit pericarp and delayed septum ripening. Notably, the expression levels of key genes involved in auxin (SlFZY4, SlFZY5, and SlFZY6) and ethylene (SlACS2) biosynthesis were significantly downregulated in the septum of the Slalkbh10b mutants. Furthermore, the promoter activity of SlYABBY2a was regulated by the ripening regulator, SlTAGL1, in vivo. In summary, these discoveries provide insights into the positive regulation of SlYABBY2a on septum development and ripening and furnish evidence of the coordinated regulation of the auxin and ethylene signaling pathways in the ripening process, which expands our comprehension of septum development in the internal structure of the fruit.
Collapse
Affiliation(s)
- Hui Shen
- Laboratory of Molecular Biology of Tomato, Bioengineering College, Chongqing University, Chongqing 400030, China; (H.S.); (B.L.); (G.C.)
- Key Laboratory of Vegetable Biology of Yunnan Province, College of Landscape and Horticulture, Yunnan Agricultural University, Kunming 650201, China; (Y.D.); (H.X.); (Z.Y.)
| | - Baobing Luo
- Laboratory of Molecular Biology of Tomato, Bioengineering College, Chongqing University, Chongqing 400030, China; (H.S.); (B.L.); (G.C.)
| | - Yingfeng Ding
- Key Laboratory of Vegetable Biology of Yunnan Province, College of Landscape and Horticulture, Yunnan Agricultural University, Kunming 650201, China; (Y.D.); (H.X.); (Z.Y.)
| | - Haojun Xiao
- Key Laboratory of Vegetable Biology of Yunnan Province, College of Landscape and Horticulture, Yunnan Agricultural University, Kunming 650201, China; (Y.D.); (H.X.); (Z.Y.)
| | - Guoping Chen
- Laboratory of Molecular Biology of Tomato, Bioengineering College, Chongqing University, Chongqing 400030, China; (H.S.); (B.L.); (G.C.)
| | - Zhengan Yang
- Key Laboratory of Vegetable Biology of Yunnan Province, College of Landscape and Horticulture, Yunnan Agricultural University, Kunming 650201, China; (Y.D.); (H.X.); (Z.Y.)
| | - Zongli Hu
- Laboratory of Molecular Biology of Tomato, Bioengineering College, Chongqing University, Chongqing 400030, China; (H.S.); (B.L.); (G.C.)
| | - Ting Wu
- Laboratory of Molecular Biology of Tomato, Bioengineering College, Chongqing University, Chongqing 400030, China; (H.S.); (B.L.); (G.C.)
| |
Collapse
|
4
|
Gong G, Jia H, Tang Y, Pei H, Zhai L, Huang J. Genetic analysis and QTL mapping for pericarp thickness in maize (Zea mays L.). BMC PLANT BIOLOGY 2024; 24:338. [PMID: 38664642 PMCID: PMC11044598 DOI: 10.1186/s12870-024-05052-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/23/2024] [Accepted: 04/19/2024] [Indexed: 04/29/2024]
Abstract
Proper pericarp thickness protects the maize kernel against pests and diseases, moreover, thinner pericarp improves the eating quality in fresh corn. In this study, we aimed to investigate the dynamic changes in maize pericarp during kernel development and identified the major quantitative trait loci (QTLs) for maize pericarp thickness. It was observed that maize pericarp thickness first increased and then decreased. During the growth and formation stages, the pericarp thickness gradually increased and reached the maximum, after which it gradually decreased and reached the minimum during maturity. To identify the QTLs for pericarp thickness, a BC4F4 population was constructed using maize inbred lines B73 (recurrent parent with thick pericarp) and Baimaya (donor parent with thin pericarp). In addition, a high-density genetic map was constructed using maize 10 K SNP microarray. A total of 17 QTLs related to pericarp thickness were identified in combination with the phenotypic data. The results revealed that the heritability of the thickness of upper germinal side of pericarp (UG) was 0.63. The major QTL controlling UG was qPT1-1, which was located on chromosome 1 (212,215,145-212,948,882). The heritability of the thickness of upper abgerminal side of pericarp (UA) was 0.70. The major QTL controlling UA was qPT2-1, which was located on chromosome 2 (2,550,197-14,732,993). In addition, a combination of functional annotation, DNA sequencing analysis and quantitative real-time PCR (qPCR) screened two candidate genes, Zm00001d001964 and Zm00001d002283, that could potentially control maize pericarp thickness. This study provides valuable insights into the improvement of maize pericarp thickness during breeding.
Collapse
Affiliation(s)
- Guantong Gong
- Guangdong Provincial Key Laboratory of Plant Molecular Breeding, South China Agricultural University, Guangzhou, 510642, China
| | - Haitao Jia
- Hubei Key Laboratory of Food Crop Germplasm and Genetic Improvement, Food Crops Institute, Hubei Academy of Agricultural Sciences, Wuhan, 430064, China
| | - Yunqi Tang
- Guangdong Provincial Key Laboratory of Plant Molecular Breeding, South China Agricultural University, Guangzhou, 510642, China
| | - Hu Pei
- Guangdong Provincial Key Laboratory of Plant Molecular Breeding, South China Agricultural University, Guangzhou, 510642, China
| | - Lihong Zhai
- Basic School of Medicine, Hubei University of Arts and Science, Xiangyang, 441053, China.
| | - Jun Huang
- Guangdong Provincial Key Laboratory of Plant Molecular Breeding, South China Agricultural University, Guangzhou, 510642, China.
| |
Collapse
|
5
|
Vondracek K, Altpeter F, Liu T, Lee S. Advances in genomics and genome editing for improving strawberry ( Fragaria ×ananassa). Front Genet 2024; 15:1382445. [PMID: 38706796 PMCID: PMC11066249 DOI: 10.3389/fgene.2024.1382445] [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: 02/05/2024] [Accepted: 04/04/2024] [Indexed: 05/07/2024] Open
Abstract
The cultivated strawberry, Fragaria ×ananassa, is a recently domesticated fruit species of economic interest worldwide. As such, there is significant interest in continuous varietal improvement. Genomics-assisted improvement, including the use of DNA markers and genomic selection have facilitated significant improvements of numerous key traits during strawberry breeding. CRISPR/Cas-mediated genome editing allows targeted mutations and precision nucleotide substitutions in the target genome, revolutionizing functional genomics and crop improvement. Genome editing is beginning to gain traction in the more challenging polyploid crops, including allo-octoploid strawberry. The release of high-quality reference genomes and comprehensive subgenome-specific genotyping and gene expression profiling data in octoploid strawberry will lead to a surge in trait discovery and modification by using CRISPR/Cas. Genome editing has already been successfully applied for modification of several strawberry genes, including anthocyanin content, fruit firmness and tolerance to post-harvest disease. However, reports on many other important breeding characteristics associated with fruit quality and production are still lacking, indicating a need for streamlined genome editing approaches and tools in Fragaria ×ananassa. In this review, we present an overview of the latest advancements in knowledge and breeding efforts involving CRISPR/Cas genome editing for the enhancement of strawberry varieties. Furthermore, we explore potential applications of this technology for improving other Rosaceous plant species.
Collapse
Affiliation(s)
- Kaitlyn Vondracek
- Gulf Coast Research and Education Center, Institute of Food and Agricultural Sciences, University of Florida, Wimauma, FL, United States
- University of Florida, Horticultural Sciences Department, Institute of Food and Agricultural Sciences, Gainesville, FL, United States
| | - Fredy Altpeter
- University of Florida, Agronomy Department, Institute of Food and Agricultural Sciences, Gainesville, FL, United States
| | - Tie Liu
- University of Florida, Horticultural Sciences Department, Institute of Food and Agricultural Sciences, Gainesville, FL, United States
| | - Seonghee Lee
- Gulf Coast Research and Education Center, Institute of Food and Agricultural Sciences, University of Florida, Wimauma, FL, United States
| |
Collapse
|
6
|
Fan J, Deng M, Li B, Fan G. Genome-Wide Identification of the Paulownia fortunei Aux/IAA Gene Family and Its Response to Witches' Broom Caused by Phytoplasma. Int J Mol Sci 2024; 25:2260. [PMID: 38396939 PMCID: PMC10889751 DOI: 10.3390/ijms25042260] [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: 12/17/2023] [Revised: 02/01/2024] [Accepted: 02/11/2024] [Indexed: 02/25/2024] Open
Abstract
The typical symptom of Paulownia witches' broom (PaWB), caused by phytoplasma infection, is excessive branching, which is mainly triggered by auxin metabolism disorder. Aux/IAA is the early auxin-responsive gene that participates in regulating plant morphogenesis such as apical dominance, stem elongation, lateral branch development, and lateral root formation. However, no studies have investigated the response of the Aux/IAA gene family to phytoplasma infection in Paulownia fortunei. In this study, a total of 62 Aux/IAA genes were found in the genome. Phylogenetic analysis showed that PfAux/IAA genes could be divided into eight subgroups, which were formed by tandem duplication and fragment replication. Most of them had a simple gene structure, and several members lacked one or two conserved domains. By combining the expression of PfAux/IAA genes under phytoplasma stress and SA-treated phytoplasma-infected seedlings, we found that PfAux/IAA13/33/45 may play a vital role in the occurrence of PaWB. Functional analysis based on homologous relationships showed a strong correlation between PfAux/IAA45 and branching. Protein-protein interaction prediction showed that PfARF might be the binding partner of PfAux/IAA, and the yeast two-hybrid assay and bimolecular fluorescent complementary assay confirmed the interaction of PfAux/IAA45 and PfARF13. This study provides a theoretical basis for further understanding the function of the PfAux/IAA gene family and exploring the regulatory mechanism of branching symptoms caused by PaWB.
Collapse
Affiliation(s)
- Jiaming Fan
- College of Forestry, Henan Agricultural University, Zhengzhou 450002, China; (J.F.); (M.D.); (B.L.)
- Institute of Paulownia, Henan Agricultural University, Zhengzhou 450002, China
| | - Minjie Deng
- College of Forestry, Henan Agricultural University, Zhengzhou 450002, China; (J.F.); (M.D.); (B.L.)
- Institute of Paulownia, Henan Agricultural University, Zhengzhou 450002, China
| | - Bingbing Li
- College of Forestry, Henan Agricultural University, Zhengzhou 450002, China; (J.F.); (M.D.); (B.L.)
- Institute of Paulownia, Henan Agricultural University, Zhengzhou 450002, China
| | - Guoqiang Fan
- College of Forestry, Henan Agricultural University, Zhengzhou 450002, China; (J.F.); (M.D.); (B.L.)
- Institute of Paulownia, Henan Agricultural University, Zhengzhou 450002, China
| |
Collapse
|
7
|
Zhang L, Xu Y, Li Y, Zheng S, Zhao Z, Chen M, Yang H, Yi H, Wu J. Transcription factor CsMYB77 negatively regulates fruit ripening and fruit size in citrus. PLANT PHYSIOLOGY 2024; 194:867-883. [PMID: 37935634 DOI: 10.1093/plphys/kiad592] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2023] [Revised: 10/03/2023] [Accepted: 10/10/2023] [Indexed: 11/09/2023]
Abstract
MYB family transcription factors (TFs) play essential roles in various biological processes, yet their involvement in regulating fruit ripening and fruit size in citrus remains poorly understood. In this study, we have established that the R2R3-MYB TF, CsMYB77, exerts a negative regulatory influence on fruit ripening in both citrus and tomato (Solanum lycopersicum), while also playing a role in modulating fruit size in citrus. The overexpression of CsMYB77 in tomato and Hongkong kumquat (Fortunella hindsii) led to notably delayed fruit ripening phenotypes. Moreover, the fruit size of Hongkong kumquat transgenic lines was largely reduced. Based on DNA affinity purification sequencing and verified interaction assays, SEVEN IN ABSENTIA OF ARABIDOPSIS THALIANA4 (SINAT4) and PIN-FORMED PROTEIN5 (PIN5) were identified as downstream target genes of CsMYB77. CsMYB77 inhibited the expression of SINAT4 to modulate abscisic acid (ABA) signaling, which delayed fruit ripening in transgenic tomato and Hongkong kumquat lines. The expression of PIN5 was activated by CsMYB77, which promoted free indole-3-acetic acid decline and modulated auxin signaling in the fruits of transgenic Hongkong kumquat lines. Taken together, our findings revealed a fruit development and ripening regulation module (MYB77-SINAT4/PIN5-ABA/auxin) in citrus, which enriches the understanding of the molecular regulatory network underlying fruit ripening and size.
Collapse
Affiliation(s)
- Li Zhang
- National Key Laboratory for Germplasm Innovation and Utilization of Horticultural Crops, Huazhong Agricultural University, Wuhan 430070, PR China
| | - Yang Xu
- National Key Laboratory for Germplasm Innovation and Utilization of Horticultural Crops, Huazhong Agricultural University, Wuhan 430070, PR China
| | - Yanting Li
- National Key Laboratory for Germplasm Innovation and Utilization of Horticultural Crops, Huazhong Agricultural University, Wuhan 430070, PR China
| | - Saisai Zheng
- National Key Laboratory for Germplasm Innovation and Utilization of Horticultural Crops, Huazhong Agricultural University, Wuhan 430070, PR China
| | - Zhenmei Zhao
- National Key Laboratory for Germplasm Innovation and Utilization of Horticultural Crops, Huazhong Agricultural University, Wuhan 430070, PR China
| | - Meiling Chen
- National Key Laboratory for Germplasm Innovation and Utilization of Horticultural Crops, Huazhong Agricultural University, Wuhan 430070, PR China
| | - Haijian Yang
- Fruit Tree Research Institute, Chongqing Academy of Agricultural Sciences, Chongqing 401329, PR China
| | - Hualin Yi
- National Key Laboratory for Germplasm Innovation and Utilization of Horticultural Crops, Huazhong Agricultural University, Wuhan 430070, PR China
| | - Juxun Wu
- National Key Laboratory for Germplasm Innovation and Utilization of Horticultural Crops, Huazhong Agricultural University, Wuhan 430070, PR China
| |
Collapse
|
8
|
Zuccarelli R, Rodríguez-Ruiz M, Silva FO, Gomes LDL, Lopes-Oliveira PJ, Zsögön A, Andrade SCS, Demarco D, Corpas FJ, Peres LEP, Rossi M, Freschi L. Loss of S-nitrosoglutathione reductase disturbs phytohormone homeostasis and regulates shoot side branching and fruit growth in tomato. JOURNAL OF EXPERIMENTAL BOTANY 2023; 74:6349-6368. [PMID: 37157899 DOI: 10.1093/jxb/erad166] [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: 12/10/2022] [Accepted: 05/04/2023] [Indexed: 05/10/2023]
Abstract
S-Nitrosoglutathione plays a central role in nitric oxide (NO) homeostasis, and S-nitrosoglutathione reductase (GSNOR) regulates the cellular levels of S-nitrosoglutathione across kingdoms. Here, we investigated the role of endogenous NO in shaping shoot architecture and controlling fruit set and growth in tomato (Solanum lycopersicum). SlGSNOR silencing promoted shoot side branching and led to reduced fruit size, negatively impacting fruit yield. Greatly intensified in slgsnor knockout plants, these phenotypical changes were virtually unaffected by SlGSNOR overexpression. Silencing or knocking out of SlGSNOR intensified protein tyrosine nitration and S-nitrosation and led to aberrant auxin production and signaling in leaf primordia and fruit-setting ovaries, besides restricting the shoot basipetal polar auxin transport stream. SlGSNOR deficiency triggered extensive transcriptional reprogramming at early fruit development, reducing pericarp cell proliferation due to restrictions on auxin, gibberellin, and cytokinin production and signaling. Abnormal chloroplast development and carbon metabolism were also detected in early-developing NO-overaccumulating fruits, possibly limiting energy supply and building blocks for fruit growth. These findings provide new insights into the mechanisms by which endogenous NO fine-tunes the delicate hormonal network controlling shoot architecture, fruit set, and post-anthesis fruit development, emphasizing the relevance of NO-auxin interaction for plant development and productivity.
Collapse
Affiliation(s)
- Rafael Zuccarelli
- Departamento de Botânica, Instituto de Biociências, Universidade de São Paulo, 05508-900, São Paulo, SP, Brazil
| | - Marta Rodríguez-Ruiz
- Departamento de Botânica, Instituto de Biociências, Universidade de São Paulo, 05508-900, São Paulo, SP, Brazil
| | - Fernanda O Silva
- Departamento de Botânica, Instituto de Biociências, Universidade de São Paulo, 05508-900, São Paulo, SP, Brazil
| | - Letícia D L Gomes
- Departamento de Botânica, Instituto de Biociências, Universidade de São Paulo, 05508-900, São Paulo, SP, Brazil
| | - Patrícia J Lopes-Oliveira
- Departamento de Botânica, Instituto de Biociências, Universidade de São Paulo, 05508-900, São Paulo, SP, Brazil
| | - Agustin Zsögön
- Departamento de Biologia Vegetal, Universidade Federal de Viçosa, 36570-900, Viçosa, MG, Brazil
| | - Sónia C S Andrade
- Departamento de Genética e Biologia Evolutiva, Instituto de Biociências, Universidade de São Paulo, 05508-900, São Paulo, SP, Brazil
| | - Diego Demarco
- Departamento de Botânica, Instituto de Biociências, Universidade de São Paulo, 05508-900, São Paulo, SP, Brazil
| | - Francisco J Corpas
- Department of Biochemistry, Cell and Molecular Biology of Plants, Estación Experimental del Zaidín, Spanish National Research Council (CSIC), Granada, Spain
| | - Lázaro E P Peres
- Departamento de Ciências Biológicas, Escola Superior de Agricultura Luiz de Queiroz, Universidade de São Paulo, 13418-900, Piracicaba, SP, Brazil
| | - Magdalena Rossi
- Departamento de Botânica, Instituto de Biociências, Universidade de São Paulo, 05508-900, São Paulo, SP, Brazil
| | - Luciano Freschi
- Departamento de Botânica, Instituto de Biociências, Universidade de São Paulo, 05508-900, São Paulo, SP, Brazil
| |
Collapse
|
9
|
Chen LN, Dou PT, Chen YK, Yang HQ. Mutant IAA21 genes from Dendrocalamus sinicus Chia et J. L. Sun inhibit stem and root growth in transgenic tobacco by interacting with ARF5. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2023; 201:107827. [PMID: 37329689 DOI: 10.1016/j.plaphy.2023.107827] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/08/2022] [Revised: 05/22/2023] [Accepted: 06/07/2023] [Indexed: 06/19/2023]
Abstract
Woody bamboos are important resource of industrial fibres. Auxin signaling plays a key role in multiple plant developmental processes, as yet the role of auxin/indole acetic acid (Aux/IAA) in culm development of woody bamboos has not been previously characterized. Dendrocalamus sinicus Chia et J. L. Sun is the largest woody bamboo documented in the world. Here, we identified two alleles of DsIAA21 gene (sIAA21 and bIAA21) from the straight- and bent-culm variants of D. sinicus, respectively, and studied how the domains I, i, and II of DsIAA21 affect the gene transcriptional repression. The results showed that bIAA21 expression was rapidly induced by exogenous auxin in D. sinicus. In transgenic tobacco, sIAA21 and bIAA21 mutated in domains i, and II significantly regulated plant architecture and root development. Stem cross sections revealed that parenchyma cells were smaller in transgenic plants than that in wild type plants. Domain i mutation changed the leucine and proline at position 45 to proline and leucine (siaa21L45P and biaa21P45L) strongly repressed cell expansion and root elongation by reducing the gravitropic response. Substitution of isoleucine with valine in domain II of the full length DsIAA21 resulted in dwarf stature in transgenic tobacco plants. Furthermore, the DsIAA21 interacted with auxin response factor 5 (ARF5) in transgenic tobacco plants, suggesting that DsIAA21 might inhibit stem and root elongation via interacting with ARF5. Taken together, our data indicated that DsIAA21 was a negative regulator of plant development and suggested that amino acid differences in domain i of sIAA21 versus bIAA21 affected their response to auxin, and might play a key role in the formation of the bent culm variant in D. sinicus. Our results not only shed a light on the morphogenetic mechanism in D. sinicus, but also provided new insights into versatile function of Aux/IAAs in plants.
Collapse
Affiliation(s)
- Ling-Na Chen
- College of Life Science, Xinjiang Normal University, Xinyi Road, Shayibake District, Urumqi, 830054, PR China; Institute of Highland Forest Science, Chinese Academy of Forestry, Bailongsi, Panlong District, Kunming, 650233, PR China
| | - Pei-Tong Dou
- Institute of Highland Forest Science, Chinese Academy of Forestry, Bailongsi, Panlong District, Kunming, 650233, PR China
| | - Yong-Kun Chen
- College of Life Science, Xinjiang Normal University, Xinyi Road, Shayibake District, Urumqi, 830054, PR China; Xinjiang Key Laboratory of Special Species Conservation and Regulatory Biology, Xinyi Road, Shayibake District, Urumqi, 830054, PR China
| | - Han-Qi Yang
- Institute of Highland Forest Science, Chinese Academy of Forestry, Bailongsi, Panlong District, Kunming, 650233, PR China.
| |
Collapse
|
10
|
Che G, Pan Y, Liu X, Li M, Zhao J, Yan S, He Y, Wang Z, Cheng Z, Song W, Zhou Z, Wu T, Weng Y, Zhang X. Natural variation in CRABS CLAW contributes to fruit length divergence in cucumber. THE PLANT CELL 2023; 35:738-755. [PMID: 36427253 PMCID: PMC9940877 DOI: 10.1093/plcell/koac335] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/08/2022] [Accepted: 11/18/2022] [Indexed: 06/16/2023]
Abstract
Fruit length is a key domestication trait that affects crop yield and appearance. Cucumber (Cucumis sativus) fruits vary from 5 to 60 cm in length. Despite the identification of several regulators and multiple quantitative trait loci (QTLs) underlying fruit length, the natural variation, and molecular mechanisms underlying differences in fruit length are poorly understood. Through map-based cloning, we identified a nonsynonymous polymorphism (G to A) in CRABS CLAW (CsCRC) as underlying the major-effect fruit size/shape QTL FS5.2 in cucumber. The short-fruit allele CsCRCA is a rare allele that has only been found in round-fruited semi-wild Xishuangbanna cucumbers. A near-isogenic line (NIL) homozygous for CsCRCA exhibited a 34∼39% reduction in fruit length. Introducing CsCRCG into this NIL rescued the short-fruit phenotype, and knockdown of CsCRCG resulted in shorter fruit and smaller cells. In natural cucumber populations, CsCRCG expression was positively correlated with fruit length. Further, CsCRCG, but not CsCRCA, targets the downstream auxin-responsive protein gene CsARP1 to regulate its expression. Knockout of CsARP1 produced shorter fruit with smaller cells. Hence, our work suggests that CsCRCG positively regulates fruit elongation through transcriptional activation of CsARP1 and thus enhances cell expansion. Using different CsCRC alleles provides a strategy to manipulate fruit length in cucumber breeding.
Collapse
Affiliation(s)
- Gen Che
- State Key Laboratories of Agrobiotechnology, Beijing Key Laboratory of Growth and Developmental Regulation for Protected Vegetable Crops, MOE Joint Laboratory for International Cooperation in Crop Molecular Breeding, China Agricultural University, Beijing 100193, China
- School of Life Science, Key Laboratory of Herbage & Endemic Crop Biology, Ministry of Education, Inner Mongolia University, Hohhot 010070, China
| | - Yupeng Pan
- Horticulture Department, University of Wisconsin-Madison, 1575 Linden Drive, Madison, Wisconsin 53706, USA
| | - Xiaofeng Liu
- State Key Laboratories of Agrobiotechnology, Beijing Key Laboratory of Growth and Developmental Regulation for Protected Vegetable Crops, MOE Joint Laboratory for International Cooperation in Crop Molecular Breeding, China Agricultural University, Beijing 100193, China
| | - Min Li
- State Key Laboratories of Agrobiotechnology, Beijing Key Laboratory of Growth and Developmental Regulation for Protected Vegetable Crops, MOE Joint Laboratory for International Cooperation in Crop Molecular Breeding, China Agricultural University, Beijing 100193, China
| | - Jianyu Zhao
- State Key Laboratories of Agrobiotechnology, Beijing Key Laboratory of Growth and Developmental Regulation for Protected Vegetable Crops, MOE Joint Laboratory for International Cooperation in Crop Molecular Breeding, China Agricultural University, Beijing 100193, China
| | - Shuangshuang Yan
- State Key Laboratories of Agrobiotechnology, Beijing Key Laboratory of Growth and Developmental Regulation for Protected Vegetable Crops, MOE Joint Laboratory for International Cooperation in Crop Molecular Breeding, China Agricultural University, Beijing 100193, China
| | - Yuting He
- State Key Laboratories of Agrobiotechnology, Beijing Key Laboratory of Growth and Developmental Regulation for Protected Vegetable Crops, MOE Joint Laboratory for International Cooperation in Crop Molecular Breeding, China Agricultural University, Beijing 100193, China
| | - Zhongyi Wang
- State Key Laboratories of Agrobiotechnology, Beijing Key Laboratory of Growth and Developmental Regulation for Protected Vegetable Crops, MOE Joint Laboratory for International Cooperation in Crop Molecular Breeding, China Agricultural University, Beijing 100193, China
| | - Zhihua Cheng
- State Key Laboratories of Agrobiotechnology, Beijing Key Laboratory of Growth and Developmental Regulation for Protected Vegetable Crops, MOE Joint Laboratory for International Cooperation in Crop Molecular Breeding, China Agricultural University, Beijing 100193, China
| | - Weiyuan Song
- State Key Laboratories of Agrobiotechnology, Beijing Key Laboratory of Growth and Developmental Regulation for Protected Vegetable Crops, MOE Joint Laboratory for International Cooperation in Crop Molecular Breeding, China Agricultural University, Beijing 100193, China
| | - Zhaoyang Zhou
- State Key Laboratories of Agrobiotechnology, Beijing Key Laboratory of Growth and Developmental Regulation for Protected Vegetable Crops, MOE Joint Laboratory for International Cooperation in Crop Molecular Breeding, China Agricultural University, Beijing 100193, China
| | - Tao Wu
- College of Horticulture, Hunan Agricultural University, Changsha, China
| | - Yiqun Weng
- Horticulture Department, University of Wisconsin-Madison, 1575 Linden Drive, Madison, Wisconsin 53706, USA
- USDA-ARS, Vegetable Crops Research Unit, 1575 Linden Drive, Madison, Wisconsin 53706, USA
| | - Xiaolan Zhang
- State Key Laboratories of Agrobiotechnology, Beijing Key Laboratory of Growth and Developmental Regulation for Protected Vegetable Crops, MOE Joint Laboratory for International Cooperation in Crop Molecular Breeding, China Agricultural University, Beijing 100193, China
| |
Collapse
|
11
|
Chen Y, Yang H, Tang B, Li F, Xie Q, Chen G, Hu Z. The AP2/ERF transcription factor SlERF.J2 functions in hypocotyl elongation and plant height in tomato. PLANT CELL REPORTS 2023; 42:371-383. [PMID: 36512035 DOI: 10.1007/s00299-022-02963-x] [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: 09/26/2022] [Accepted: 12/05/2022] [Indexed: 06/17/2023]
Abstract
Our findings indicated that the SlERF.J2-IAA23 module integrates hormonal signals to regulate hypocotyl elongation and plant height in tomato. Light and phytohormones can synergistically regulate photomorphogenesis-related hypocotyl elongation and plant height in tomato. AP2/ERF family genes have been extensively demonstrated to play a role in light signaling and various hormones. In this study, we identified a novel AP2/ERF family gene in tomato, SlERF.J2. Overexpression of SlERF.J2 inhibits hypocotyl elongation and plant height. However, the plant height in the slerf.j2ko knockout mutant was not significantly changed compared with the WT. we found that hypocotyl cell elongation and plant height were regulated by a network involving light, auxin and gibberellin signaling, which is mediated by regulatory relationship between SlERF.J2 and IAA23. SlERF.J2 protein could bind to IAA23 promoter and inhibit its expression. In addition, light-dark alternation can activate the transcription of SlERF.J2 and promote the function of SlERF.J2 in photomorphogenesis. Our findings indicated that the SlERF.J2-IAA23 module integrates hormonal signals to regulate hypocotyl elongation and plant height in tomato.
Collapse
Affiliation(s)
- Yanan Chen
- Laboratory of Molecular Biology of Tomato, Bioengineering College, Chongqing University, Chongqing, People's Republic of China
| | - Hong Yang
- Laboratory of Molecular Biology of Tomato, Bioengineering College, Chongqing University, Chongqing, People's Republic of China
| | - Boyan Tang
- Laboratory of Molecular Biology of Tomato, Bioengineering College, Chongqing University, Chongqing, People's Republic of China
| | - Fenfen Li
- Laboratory of Molecular Biology of Tomato, Bioengineering College, Chongqing University, Chongqing, People's Republic of China
| | - Qiaoli Xie
- Laboratory of Molecular Biology of Tomato, Bioengineering College, Chongqing University, Chongqing, People's Republic of China
| | - Guoping Chen
- Laboratory of Molecular Biology of Tomato, Bioengineering College, Chongqing University, Chongqing, People's Republic of China.
- Room 523, Bioengineering College, Chongqing University, Campus B, 174 Shapingba Main Street, Chongqing, 400030, People's Republic of China.
| | - Zongli Hu
- Laboratory of Molecular Biology of Tomato, Bioengineering College, Chongqing University, Chongqing, People's Republic of China.
- Room 521, Bioengineering College, Chongqing University, Campus B, 174 Shapingba Main Street, Chongqing, 400030, People's Republic of China.
| |
Collapse
|
12
|
Huang J, Zhang G, Li Y, Lyu M, Zhang H, Zhang N, Chen R. Integrative genomic and transcriptomic analyses of a bud sport mutant 'Jinzao Wuhe' with the phenotype of large berries in grapevines. PeerJ 2023; 11:e14617. [PMID: 36620751 PMCID: PMC9817954 DOI: 10.7717/peerj.14617] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2022] [Accepted: 12/01/2022] [Indexed: 01/05/2023] Open
Abstract
Background Bud sport mutation occurs frequently in fruit plants and acts as an important approach for grapevine improvement and breeding. 'Jinzao Wuhe' is a bud sport of the elite cultivar 'Himord Seedless' with obviously enlarged organs and berries. To date, the molecular mechanisms underlying berry enlargement caused by bud sport in grapevines remain unclear. Methods Whole genome resequencing (WGRS) was performed for two pairs of bud sports and their maternal plants with similar phenotype to identify SNPs, InDels and structural variations (SVs) as well as related genes. Furthermore, transcriptomic sequencing at different developmental stages and weighted gene co-expression network analysis (WGCNA) for 'Jinzao Wuhe' and its maternal plant 'Himord Seedless' were carried out to identify the differentially expressed genes (DEGs), which were subsequently analyzed for Gene Ontology (GO) and function annotation. Results In two pairs of enlarged berry bud sports, a total of 1,334 SNPs, 272 InDels and 74 SVs, corresponding to 1,022 target genes related to symbiotic microorganisms, cell death and other processes were identified. Meanwhile, 1,149 DEGs associated with cell wall modification, stress-response and cell killing might be responsible for the phenotypic variation were also determined. As a result, 42 DEGs between 'Himord Seedless' and 'Jinzao Wuhe' harboring genetic variations were further investigated, including pectin esterase, cellulase A, cytochromes P450 (CYP), UDP-glycosyltransferase (UGT), zinc finger protein, auxin response factor (ARF), NAC transcription factor (TF), protein kinase, etc. These candidate genes offer important clues for a better understanding of developmental regulations of berry enlargement in grapevine. Conclusion Our results provide candidate genes and valuable information for dissecting the underlying mechanisms of berry development and contribute to future improvement of grapevine cultivars.
Collapse
Affiliation(s)
- Jianquan Huang
- The Research Institute of Forestry and Pomology, Tianjin Academy of Agricultural Sciences, Tianjin, China
| | - Guan Zhang
- Institute of Crop Germplasm and Biotechnology, Tianjin Academy of Agricultural Sciences, Tianjin, China
- College of Biotechnology and Food Science, Tianjin University of Commerce, Tianjin, China
| | - Yanhao Li
- The Research Institute of Forestry and Pomology, Tianjin Academy of Agricultural Sciences, Tianjin, China
- College of Horticulture and Gardening, Tianjin Agricultural University, Tianjin, China
| | - Mingjie Lyu
- Institute of Crop Germplasm and Biotechnology, Tianjin Academy of Agricultural Sciences, Tianjin, China
| | - He Zhang
- The Research Institute of Forestry and Pomology, Tianjin Academy of Agricultural Sciences, Tianjin, China
| | - Na Zhang
- The Research Institute of Forestry and Pomology, Tianjin Academy of Agricultural Sciences, Tianjin, China
| | - Rui Chen
- Institute of Crop Germplasm and Biotechnology, Tianjin Academy of Agricultural Sciences, Tianjin, China
| |
Collapse
|
13
|
Shu H, Zhang Y, He C, Altaf MA, Hao Y, Liao D, Li L, Li C, Fu H, Cheng S, Zhu G, Wang Z. Establishment of in vitro regeneration system and molecular analysis of early development of somatic callus in Capsicum chinense and Capsicum baccatum. FRONTIERS IN PLANT SCIENCE 2022; 13:1025497. [PMID: 36466290 PMCID: PMC9714296 DOI: 10.3389/fpls.2022.1025497] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/23/2022] [Accepted: 10/19/2022] [Indexed: 06/17/2023]
Abstract
Regeneration is extremely important to pepper genetic development; however, the molecular mechanisms of how the callus reactivates cell proliferation and promotes cell reprogramming remain elusive in pepper. In the present study, C. baccatum (HNUCB81 and HNUCB226) and C. chinense (HNUCC22 and HNUCC16) were analyzed to reveal callus initiation by in vitro regeneration, histology, and transcriptome. We successfully established an efficient in vitro regeneration system of two cultivars to monitor the callus induction of differential genotypes, and the regenerated plants were obtained. Compared to C. chinense, there was a higher callus induction rate in C. baccatum. The phenotype of C. baccatum changed significantly and formed vascular tissue faster than C. chinense. The KEGG enrichment analysis found that plant hormone transduction and starch and sucrose metabolism pathways were significantly enriched. In addition, we identified that the WOX7 gene was significantly up-regulated in HNUCB81 and HNUCB226 than that in HNUCC22 and HNUCC16, which may be a potential function in callus formation. These results provided a promising strategy to improve the regeneration and transformation of pepper plants.
Collapse
Affiliation(s)
- Huangying Shu
- Key Laboratory for Quality Regulation of Tropical Horticultural Crops of Hainan Province, School of Horticulture, Hainan University, Haikou, China
- Sanya Nanfan Research Institute, Hainan University, Sanya, China
- Hainan Yazhou Bay Seed Laboratory, Sanya, China
| | - Yu Zhang
- Key Laboratory for Quality Regulation of Tropical Horticultural Crops of Hainan Province, School of Horticulture, Hainan University, Haikou, China
| | - Chengyao He
- Key Laboratory for Quality Regulation of Tropical Horticultural Crops of Hainan Province, School of Horticulture, Hainan University, Haikou, China
| | - Muhammad Ahsan Altaf
- Key Laboratory for Quality Regulation of Tropical Horticultural Crops of Hainan Province, School of Horticulture, Hainan University, Haikou, China
| | - Yuanyuan Hao
- Key Laboratory for Quality Regulation of Tropical Horticultural Crops of Hainan Province, School of Horticulture, Hainan University, Haikou, China
| | - Daolong Liao
- Key Laboratory for Quality Regulation of Tropical Horticultural Crops of Hainan Province, School of Horticulture, Hainan University, Haikou, China
- Institute of Vegetables, Hainan Province Academy of Agricultural Sciences, Haikou, China
| | - Lin Li
- Key Laboratory for Quality Regulation of Tropical Horticultural Crops of Hainan Province, School of Horticulture, Hainan University, Haikou, China
| | - Caichao Li
- Key Laboratory for Quality Regulation of Tropical Horticultural Crops of Hainan Province, School of Horticulture, Hainan University, Haikou, China
| | - Huizhen Fu
- Key Laboratory for Quality Regulation of Tropical Horticultural Crops of Hainan Province, School of Horticulture, Hainan University, Haikou, China
- Sanya Nanfan Research Institute, Hainan University, Sanya, China
| | - Shanhan Cheng
- Key Laboratory for Quality Regulation of Tropical Horticultural Crops of Hainan Province, School of Horticulture, Hainan University, Haikou, China
- Sanya Nanfan Research Institute, Hainan University, Sanya, China
| | - Guopeng Zhu
- Key Laboratory for Quality Regulation of Tropical Horticultural Crops of Hainan Province, School of Horticulture, Hainan University, Haikou, China
- Sanya Nanfan Research Institute, Hainan University, Sanya, China
| | - Zhiwei Wang
- Key Laboratory for Quality Regulation of Tropical Horticultural Crops of Hainan Province, School of Horticulture, Hainan University, Haikou, China
- Sanya Nanfan Research Institute, Hainan University, Sanya, China
- Hainan Yazhou Bay Seed Laboratory, Sanya, China
| |
Collapse
|
14
|
Cheng W, Zhang M, Cheng T, Wang J, Zhang Q. Genome-wide identification of Aux/IAA gene family and their expression analysis in Prunus mume. Front Genet 2022; 13:1013822. [PMID: 36313426 PMCID: PMC9597081 DOI: 10.3389/fgene.2022.1013822] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2022] [Accepted: 09/26/2022] [Indexed: 11/28/2022] Open
Abstract
AUXIN/INDOLE ACETIC ACIDs (Aux/IAAs), an early auxin-responsive gene family, is important for plant growth and development. To fully comprehend the character of Aux/IAA genes in woody plants, we identified 19 PmIAA genes in Prunus mume and dissected their protein domains, phylogenetic relationship, gene structure, promoter, and expression patterns during floral bud flushing, auxin response, and abiotic stress response. The study showed that PmIAA proteins shared conserved Aux/IAA domain, but differed in protein motif composition. 19 PmIAA genes were divided into six groups (Groups Ⅰ to Ⅵ) based on phylogenetic analysis. The gene duplication analysis showed that segmental and dispersed duplication greatly influenced the expansion of PmIAA genes. Moreover, we identified and classified the cis-elements of PmIAA gene promoters and detected elements that are related to phytohormone responses and abiotic stress responses. With expression pattern analysis, we observed the auxin-responsive expression of PmIAA5, PmIAA17, and PmIAA18 in flower bud, stem, and leaf tissues. PmIAA5, PmIAA13, PmIAA14, and PmIAA18 were possibly involved in abiotic stress responses in P. mume. In general, these results laid the theoretical foundation for elaborating the functions of Aux/IAA genes in perennial woody plant development.
Collapse
Affiliation(s)
| | - Man Zhang
- *Correspondence: Man Zhang, ; Qixiang Zhang,
| | | | | | | |
Collapse
|
15
|
Roles of Auxin in the Growth, Development, and Stress Tolerance of Horticultural Plants. Cells 2022; 11:cells11172761. [PMID: 36078168 PMCID: PMC9454831 DOI: 10.3390/cells11172761] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2022] [Revised: 08/29/2022] [Accepted: 08/29/2022] [Indexed: 12/04/2022] Open
Abstract
Auxin, a plant hormone, regulates virtually every aspect of plant growth and development. Many current studies on auxin focus on the model plant Arabidopsis thaliana, or on field crops, such as rice and wheat. There are relatively few studies on what role auxin plays in various physiological processes of a range of horticultural plants. In this paper, recent studies on the role of auxin in horticultural plant growth, development, and stress response are reviewed to provide novel insights for horticultural researchers and cultivators to improve the quality and application of horticultural crops.
Collapse
|
16
|
Bu H, Sun X, Yue P, Qiao J, Sun J, Wang A, Yuan H, Yu W. The MdAux/IAA2 Transcription Repressor Regulates Cell and Fruit Size in Apple Fruit. Int J Mol Sci 2022; 23:ijms23169454. [PMID: 36012719 PMCID: PMC9408813 DOI: 10.3390/ijms23169454] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2022] [Revised: 08/18/2022] [Accepted: 08/19/2022] [Indexed: 11/24/2022] Open
Abstract
Auxin plays an important role in regulating plant development, and Auxin/indole acetic acid (Aux/IAA) is a type of auxin-responsive gene and plays an important role in auxin signaling; to date, although 29 Aux/IAA proteins have been reported in Abrabidopsis thaliana, only parts of the Aux/IAA family gene functions have been identified. We previously reported that a bud sport of ‘Longfeng’ (LF) apple (Malus domestica), named ‘Grand longfeng’ (GLF), which showed a larger fruit size than LF, has lower expression of MdAux/IAA2. In this study, we identified the function of the MdAux/IAA2 gene in apple fruit size difference using Agrobacterium-mediated genetic transformation. Overexpression of MdAux/IAA2 decreased the apple flesh callus increment and caused a smaller globular cell size. In addition, overexpression of MdAux/IAA2 in GLF fruit resulted in the reduction of apple fruit size, weight, and cell size, while silencing MdAux/IAA2 in LF apple fruit resulted in an increase in apple fruit weight and cell size. We suggest that the high auxin content depressed the expression of MdAux/IAA2, and that the downregulated expression of MdAux/IAA2 led to the formation of GLF. Our study suggests a mechanism for fruit size regulation in plants and we will explore the transcription factors functioning in this process in the future.
Collapse
Affiliation(s)
- Haidong Bu
- Mudanjiang Branch, Heilongjiang Academy of Agricultural Sciences, Mudanjiang 157000, China
| | - Xiaohuan Sun
- Mudanjiang Branch, Heilongjiang Academy of Agricultural Sciences, Mudanjiang 157000, China
| | - Pengtao Yue
- Key Laboratory of Fruit Postharvest Biology (Liaoning Province), Key Laboratory of Protected Horticulture (Ministry of Education), National & Local Joint Engineering Research Center of Northern Horticultural Facilities Design & Application Technology (Liaoning), College of Horticulture, Shenyang Agricultural University, Shenyang 110866, China
| | - Junling Qiao
- Key Laboratory of Fruit Postharvest Biology (Liaoning Province), Key Laboratory of Protected Horticulture (Ministry of Education), National & Local Joint Engineering Research Center of Northern Horticultural Facilities Design & Application Technology (Liaoning), College of Horticulture, Shenyang Agricultural University, Shenyang 110866, China
| | - Jiamao Sun
- Key Laboratory of Fruit Postharvest Biology (Liaoning Province), Key Laboratory of Protected Horticulture (Ministry of Education), National & Local Joint Engineering Research Center of Northern Horticultural Facilities Design & Application Technology (Liaoning), College of Horticulture, Shenyang Agricultural University, Shenyang 110866, China
| | - Aide Wang
- Key Laboratory of Fruit Postharvest Biology (Liaoning Province), Key Laboratory of Protected Horticulture (Ministry of Education), National & Local Joint Engineering Research Center of Northern Horticultural Facilities Design & Application Technology (Liaoning), College of Horticulture, Shenyang Agricultural University, Shenyang 110866, China
| | - Hui Yuan
- Key Laboratory of Fruit Postharvest Biology (Liaoning Province), Key Laboratory of Protected Horticulture (Ministry of Education), National & Local Joint Engineering Research Center of Northern Horticultural Facilities Design & Application Technology (Liaoning), College of Horticulture, Shenyang Agricultural University, Shenyang 110866, China
- Correspondence: (H.Y.); (W.Y.)
| | - Wenquan Yu
- Mudanjiang Branch, Heilongjiang Academy of Agricultural Sciences, Mudanjiang 157000, China
- Correspondence: (H.Y.); (W.Y.)
| |
Collapse
|
17
|
Xiong C, Pei H, Zhang Y, Ren W, Ma Z, Tang Y, Huang J. Integrative analysis of transcriptome and miRNAome reveals molecular mechanisms regulating pericarp thickness in sweet corn during kernel development. FRONTIERS IN PLANT SCIENCE 2022; 13:945379. [PMID: 35958194 PMCID: PMC9361504 DOI: 10.3389/fpls.2022.945379] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/16/2022] [Accepted: 06/27/2022] [Indexed: 06/18/2023]
Abstract
Pericarp thickness affects the edible quality of sweet corn (Zea mays L. saccharata Sturt.). Therefore, breeding varieties with a thin pericarp is important for the quality breeding of sweet corn. However, the molecular mechanisms underlying the pericarp development remain largely unclear. We performed an integrative analysis of mRNA and miRNA sequencing to elucidate the genetic mechanism regulating pericarp thickness during kernel development (at 15 days, 19 days, and 23 days after pollination) of two sweet corn inbred lines with different pericarp thicknesses (M03, with a thinner pericarp and M08, with a thicker pericarp). A total of 2,443 and 1,409 differentially expressed genes (DEGs) were identified in M03 and M08, respectively. Our results indicate that phytohormone-mediated programmed cell death (PCD) may play a critical role in determining pericarp thickness in sweet corn. Auxin (AUX), gibberellin (GA), and brassinosteroid (BR) signal transduction may indirectly mediate PCD to regulate pericarp thickness in M03 (the thin pericarp variety). In contrast, abscisic acid (ABA), cytokinin (CK), and ethylene (ETH) signaling may be the key regulators of pericarp PCD in M08 (the thick pericarp variety). Furthermore, 110 differentially expressed microRNAs (DEMIs) and 478 differentially expressed target genes were identified. miRNA164-, miRNA167-, and miRNA156-mediated miRNA-mRNA pairs may participate in regulating pericarp thickness. The expression results of DEGs were validated by quantitative real-time PCR. These findings provide insights into the molecular mechanisms regulating pericarp thickness and propose the objective of breeding sweet corn varieties with a thin pericarp.
Collapse
|
18
|
Wang L, Liu X, Li Q, Xu N, He C. A lineage-specific arginine in POS1 is required for fruit size control in Physaleae (Solanaceae) via gene co-option. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2022; 111:183-204. [PMID: 35481627 DOI: 10.1111/tpj.15786] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/08/2022] [Accepted: 04/22/2022] [Indexed: 06/14/2023]
Abstract
Solanaceae have important economic value mainly due to their edible fruits. Physalis organ size 1/cytokinin response factor 3 (POS1/CRF3), a unique gene in Solanaceae, is involved in fruit size variation in Physalis but not in Solanum. However, the underlying mechanisms remain elusive. Here, we found that POS1/CRF3 was likely created via the fusion of CRF7 and CRF8 duplicates. Multiple genetic manipulations revealed that only POS1 and Capsicum POS1 (CaPOS1) functioned in fruit size control via the positive regulation of cell expansion. Comparative studies in a phylogenetic framework showed the directional enhancement of POS1-like expression in the flowers and fruits of Physaleae and the specific gain of certain interacting proteins associated with cell expansion by POS1 and CaPOS1. A lineage-specific single nucleotide polymorphism (SNP) caused the 68th amino acid histidine in the POS1 orthologs of non-Physaleae (Nicotiana and Solanum) to change to arginine in Physaleae (Physalis and Capsicum). Substituting the arginine in Physaleae POS1-like by histidine completely abolished their function in the fruits and the protein-protein interaction (PPI) with calreticulin-3. Transcriptomic comparison revealed the potential downstream pathways of POS1, including the brassinosteroid biosynthesis pathway. However, POS1-like may have functioned ancestrally in abiotic stress within Solanaceae. Our work demonstrated that heterometric expression and a SNP caused a single amino acid change to establish new PPIs, which contributed to the co-option of POS1 in multiple regulatory pathways to regulate cell expansion and thus fruit size in Physaleae. These results provide new insights into fruit morphological evolution and fruit yield control.
Collapse
Affiliation(s)
- Li Wang
- State Key Laboratory of Systematic and Evolutionary Botany, Institute of Botany, Chinese Academy of Sciences, Nanxincun 20, Xiangshan, 100093, Beijing, China
| | - Xueyang Liu
- State Key Laboratory of Systematic and Evolutionary Botany, Institute of Botany, Chinese Academy of Sciences, Nanxincun 20, Xiangshan, 100093, Beijing, China
- University of Chinese Academy of Sciences, Yuquan Road 19, 100049, Beijing, China
| | - Qiaoru Li
- State Key Laboratory of Systematic and Evolutionary Botany, Institute of Botany, Chinese Academy of Sciences, Nanxincun 20, Xiangshan, 100093, Beijing, China
- University of Chinese Academy of Sciences, Yuquan Road 19, 100049, Beijing, China
| | - Nan Xu
- State Key Laboratory of Systematic and Evolutionary Botany, Institute of Botany, Chinese Academy of Sciences, Nanxincun 20, Xiangshan, 100093, Beijing, China
- University of Chinese Academy of Sciences, Yuquan Road 19, 100049, Beijing, China
| | - Chaoying He
- State Key Laboratory of Systematic and Evolutionary Botany, Institute of Botany, Chinese Academy of Sciences, Nanxincun 20, Xiangshan, 100093, Beijing, China
- University of Chinese Academy of Sciences, Yuquan Road 19, 100049, Beijing, China
- The Innovative Academy of Seed Design, Chinese Academy of Sciences, Beijing, China
| |
Collapse
|
19
|
Pons C, Casals J, Palombieri S, Fontanet L, Riccini A, Rambla JL, Ruggiero A, Figás MDR, Plazas M, Koukounaras A, Picarella ME, Sulli M, Fisher J, Ziarsolo P, Blanca J, Cañizares J, Cammareri M, Vitiello A, Batelli G, Kanellis A, Brouwer M, Finkers R, Nikoloudis K, Soler S, Giuliano G, Grillo S, Grandillo S, Zamir D, Mazzucato A, Causse M, Díez MJ, Prohens J, Monforte AJ, Granell A. Atlas of phenotypic, genotypic and geographical diversity present in the European traditional tomato. HORTICULTURE RESEARCH 2022; 9:uhac112. [PMID: 35795386 PMCID: PMC9252105 DOI: 10.1093/hr/uhac112] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/11/2022] [Accepted: 04/27/2022] [Indexed: 06/15/2023]
Abstract
The Mediterranean basin countries are considered secondary centres of tomato diversification. However, information on phenotypic and allelic variation of local tomato materials is still limited. Here we report on the evaluation of the largest traditional tomato collection, which includes 1499 accessions from Southern Europe. Analyses of 70 traits revealed a broad range of phenotypic variability with different distributions among countries, with the culinary end use within each country being the main driver of tomato diversification. Furthermore, eight main tomato types (phenoclusters) were defined by integrating phenotypic data, country of origin, and end use. Genome-wide association study (GWAS) meta-analyses identified associations in 211 loci, 159 of which were novel. The multidimensional integration of phenoclusters and the GWAS meta-analysis identified the molecular signatures for each traditional tomato type and indicated that signatures originated from differential combinations of loci, which in some cases converged in the same tomato phenotype. Our results provide a roadmap for studying and exploiting this untapped tomato diversity.
Collapse
Affiliation(s)
- Clara Pons
- Instituto de Conservación y Mejora de la Agrodiversidad Valenciana (COMAV), Universitat Politècnica de València, València, Spain
- Instituto de Biología Molecular y Celular de Plantas (IBMCP). Consejo Superior de Investigaciones Científicas (CSIC), Universitat Politècnica de València, València, Spain
| | - Joan Casals
- Department of Agri-Food Engineering and Biotechnology/Miquel Agustí Foundation, Universitat Politècnica de Catalunya, Campus Baix Llobregat, Esteve Terrades 8, 08860 Castelldefels, Spain
| | - Samuela Palombieri
- Institute of Biosciences and BioResources (IBBR), National Research Council of Italy (CNR), Via Università 133, 80055 Portici, Italy
- Department of Agriculture and Forest Sciences (DAFNE), University of Tuscia, 01100 Viterbo, Italy
| | - Lilian Fontanet
- INRAE, UR1052, Génétique et Amélioration des Fruits et Légumes 67 Allé des Chênes, Centre de Recherche PACA, Domaine Saint Maurice, CS60094, Montfavet, 84143, France
- HM Clause, Portes-lès-Valence, France
| | - Alessandro Riccini
- Department of Agriculture and Forest Sciences (DAFNE), Università degli Studi della Tuscia, Viterbo,Italy
| | - Jose Luis Rambla
- Instituto de Biología Molecular y Celular de Plantas (IBMCP). Consejo Superior de Investigaciones Científicas (CSIC), Universitat Politècnica de València, València, Spain
| | - Alessandra Ruggiero
- Institute of Biosciences and BioResources (IBBR), National Research Council of Italy (CNR), Via Università 133, 80055 Portici, Italy
| | - Maria del Rosario Figás
- Instituto de Conservación y Mejora de la Agrodiversidad Valenciana (COMAV), Universitat Politècnica de València, València, Spain
| | - Mariola Plazas
- Instituto de Conservación y Mejora de la Agrodiversidad Valenciana (COMAV), Universitat Politècnica de València, València, Spain
- Instituto de Biología Molecular y Celular de Plantas (IBMCP). Consejo Superior de Investigaciones Científicas (CSIC), Universitat Politècnica de València, València, Spain
| | - Athanasios Koukounaras
- Aristotle University of Thessaloniki, School of Agriculture, Laboratory of Vegetable Crops, Thessaloniki, 54124 Greece
| | - Maurizio E Picarella
- Department of Agriculture and Forest Sciences (DAFNE), Università degli Studi della Tuscia, Viterbo,Italy
| | - Maria Sulli
- Italian National Agency for New Technologies, Energy and Sustainable Economic Development (ENEA), Casaccia Research Centre, Rome, Italy
| | - Josef Fisher
- Hebrew University of Jerusalem, Robert H Smith Inst Plant Sci & Genet Agr, Rehovot, Israel
| | - Peio Ziarsolo
- Instituto de Conservación y Mejora de la Agrodiversidad Valenciana (COMAV), Universitat Politècnica de València, València, Spain
| | - Jose Blanca
- Instituto de Conservación y Mejora de la Agrodiversidad Valenciana (COMAV), Universitat Politècnica de València, València, Spain
| | - Joaquin Cañizares
- Instituto de Conservación y Mejora de la Agrodiversidad Valenciana (COMAV), Universitat Politècnica de València, València, Spain
| | - Maria Cammareri
- Institute of Biosciences and BioResources (IBBR), National Research Council of Italy (CNR), Via Università 133, 80055 Portici, Italy
| | - Antonella Vitiello
- Institute of Biosciences and BioResources (IBBR), National Research Council of Italy (CNR), Via Università 133, 80055 Portici, Italy
| | - Giorgia Batelli
- Institute of Biosciences and BioResources (IBBR), National Research Council of Italy (CNR), Via Università 133, 80055 Portici, Italy
| | - Angelos Kanellis
- Group of Biotechnology of Pharmaceutical Plants, Laboratory of Pharmacognosy, Department of Pharmaceutical Sciences, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
| | - Matthijs Brouwer
- Wageningen Univ & Res, Plant Breeding, POB 386, NL-6700 AJ Wageningen, Netherlands
| | - Richard Finkers
- Wageningen Univ & Res, Plant Breeding, POB 386, NL-6700 AJ Wageningen, Netherlands
| | | | - Salvador Soler
- Instituto de Conservación y Mejora de la Agrodiversidad Valenciana (COMAV), Universitat Politècnica de València, València, Spain
| | - Giovanni Giuliano
- Italian National Agency for New Technologies, Energy and Sustainable Economic Development (ENEA), Casaccia Research Centre, Rome, Italy
| | - Stephania Grillo
- Institute of Biosciences and BioResources (IBBR), National Research Council of Italy (CNR), Via Università 133, 80055 Portici, Italy
| | - Silvana Grandillo
- Institute of Biosciences and BioResources (IBBR), National Research Council of Italy (CNR), Via Università 133, 80055 Portici, Italy
| | - Dani Zamir
- Hebrew University of Jerusalem, Robert H Smith Inst Plant Sci & Genet Agr, Rehovot, Israel
| | - Andrea Mazzucato
- Department of Agriculture and Forest Sciences (DAFNE), Università degli Studi della Tuscia, Viterbo,Italy
| | - Mathilde Causse
- INRAE, UR1052, Génétique et Amélioration des Fruits et Légumes 67 Allé des Chênes, Centre de Recherche PACA, Domaine Saint Maurice, CS60094, Montfavet, 84143, France
| | - Maria José Díez
- Instituto de Conservación y Mejora de la Agrodiversidad Valenciana (COMAV), Universitat Politècnica de València, València, Spain
| | - Jaime Prohens
- Instituto de Conservación y Mejora de la Agrodiversidad Valenciana (COMAV), Universitat Politècnica de València, València, Spain
| | - Antonio Jose Monforte
- Instituto de Biología Molecular y Celular de Plantas (IBMCP). Consejo Superior de Investigaciones Científicas (CSIC), Universitat Politècnica de València, València, Spain
| | - Antonio Granell
- Instituto de Biología Molecular y Celular de Plantas (IBMCP). Consejo Superior de Investigaciones Científicas (CSIC), Universitat Politècnica de València, València, Spain
| |
Collapse
|
20
|
Li F, Jia Y, Zhou S, Chen X, Xie Q, Hu Z, Chen G. SlMBP22 overexpression in tomato affects flower morphology and fruit development. JOURNAL OF PLANT PHYSIOLOGY 2022; 272:153687. [PMID: 35378388 DOI: 10.1016/j.jplph.2022.153687] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Revised: 03/23/2022] [Accepted: 03/25/2022] [Indexed: 06/14/2023]
Abstract
MADS-domain transcription factors have been identified as key regulators involved in proper flower and fruit development in angiosperms. As members of the MADS-box subfamily, Bsister (Bs) genes have been observed to play an important role during the evolution of the reproductive organs in seed plants. However, their effects on reproductive development in fruit crops, such as tomato (Solanum lycopersicum), remain unclear. Here, we found that SlMBP22 overexpression (SlMBP22-OE) resulted in considerable alterations in floral morphology and affected the expression levels of several floral homeotic genes. Further analysis by yeast two-hybrid (Y2H) and bimolecular fluorescence complementation (BiFC) assays demonstrated that SlMBP22 forms dimers with class A protein MACROCALYX (MC) and SEPALLATA (SEP) floral homeotic proteins TM5 and TM29, respectively. In addition, pollen viability and cross-fertilization assays suggested that the defect in female reproductive development was responsible for the infertility phenotype observed in the strong overexpression transgenic plants. Transgenic fruits with mild overexpression exhibited reduced size as a result of reduced cell expansion, rather than impaired cell division. Additionally, SlMBP22 overexpression in tomato not only affected proanthocyanidin (PA) accumulation but also altered seed dormancy. Taken together, these findings may provide new insights into the knowledge of Bs MADS-box genes in flower and fruit development in tomato.
Collapse
Affiliation(s)
- Fenfen Li
- Laboratory of Molecular Biology of Tomato, Bioengineering College, Chongqing University, Chongqing, PR China.
| | - Yanhua Jia
- Laboratory of Molecular Biology of Tomato, Bioengineering College, Chongqing University, Chongqing, PR China.
| | - Shengen Zhou
- Laboratory of Molecular Biology of Tomato, Bioengineering College, Chongqing University, Chongqing, PR China.
| | - Xinyu Chen
- Laboratory of Molecular Biology of Tomato, Bioengineering College, Chongqing University, Chongqing, PR China.
| | - Qiaoli Xie
- Laboratory of Molecular Biology of Tomato, Bioengineering College, Chongqing University, Chongqing, PR China.
| | - Zongli Hu
- Laboratory of Molecular Biology of Tomato, Bioengineering College, Chongqing University, Chongqing, PR China.
| | - Guoping Chen
- Laboratory of Molecular Biology of Tomato, Bioengineering College, Chongqing University, Chongqing, PR China.
| |
Collapse
|
21
|
Ji K, Song Q, Yu X, Tan C, Wang L, Chen L, Xiang X, Gong W, Yuan D. Hormone analysis and candidate genes identification associated with seed size in Camellia oleifera. ROYAL SOCIETY OPEN SCIENCE 2022; 9:211138. [PMID: 35360359 PMCID: PMC8965419 DOI: 10.1098/rsos.211138] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/21/2021] [Accepted: 03/02/2022] [Indexed: 05/02/2023]
Abstract
Camellia oleifera is an important woody oil species in China. Its seed oil has been widely used as a cooking oil. Seed size is a crucial factor influencing the yield of seed oil. In this study, the horizontal diameter, vertical diameter and volume of C. oleifera seeds showed a rapid growth tendency from 235 days after pollination (DAP) to 258 DAP but had a slight increase at seed maturity. During seed development, the expression of genes related to cell proliferation and expansion differ greatly. Auxin plays an important role in C. oleifera seeds; YUC4 and IAA17 were significantly downregulated. Weighted gene co-expression network analysis screened 21 hub transcription factors for C. oleifera seed horizontal diameter, vertical diameter and volume. Among them, SPL4 was significantly decreased and associated with all these three traits, while ABI4 and YAB1 were significantly increased and associated with horizontal diameter of C. oleifera seeds. Additionally, KLU significantly decreased (2040-fold). Collectively, our data advances the knowledge of factors related to seed size and provides a theoretical basis for improving the yield of C. oleifera seeds.
Collapse
Affiliation(s)
- Ke Ji
- Key Laboratory of Cultivation and Protection for Non-Wood Forest Trees of Ministry of Education and the Key Laboratory of Non-Wood Forest Products of Forestry Ministry, Central South University of Forestry and Technology, Changsha, Hunan, 410004, People's Republic of China
| | - Qiling Song
- Key Laboratory of Cultivation and Protection for Non-Wood Forest Trees of Ministry of Education and the Key Laboratory of Non-Wood Forest Products of Forestry Ministry, Central South University of Forestry and Technology, Changsha, Hunan, 410004, People's Republic of China
| | - Xinran Yu
- Key Laboratory of Cultivation and Protection for Non-Wood Forest Trees of Ministry of Education and the Key Laboratory of Non-Wood Forest Products of Forestry Ministry, Central South University of Forestry and Technology, Changsha, Hunan, 410004, People's Republic of China
| | - Chuanbo Tan
- Hunan Great Sanxiang Camellia Oil Co., Ltd, Hengyang, Hunan 421000, People's Republic of China
| | - Linkai Wang
- Key Laboratory of Cultivation and Protection for Non-Wood Forest Trees of Ministry of Education and the Key Laboratory of Non-Wood Forest Products of Forestry Ministry, Central South University of Forestry and Technology, Changsha, Hunan, 410004, People's Republic of China
| | - Le Chen
- Key Laboratory of Cultivation and Protection for Non-Wood Forest Trees of Ministry of Education and the Key Laboratory of Non-Wood Forest Products of Forestry Ministry, Central South University of Forestry and Technology, Changsha, Hunan, 410004, People's Republic of China
| | - Xiaofeng Xiang
- Key Laboratory of Cultivation and Protection for Non-Wood Forest Trees of Ministry of Education and the Key Laboratory of Non-Wood Forest Products of Forestry Ministry, Central South University of Forestry and Technology, Changsha, Hunan, 410004, People's Republic of China
| | - Wenfang Gong
- Key Laboratory of Cultivation and Protection for Non-Wood Forest Trees of Ministry of Education and the Key Laboratory of Non-Wood Forest Products of Forestry Ministry, Central South University of Forestry and Technology, Changsha, Hunan, 410004, People's Republic of China
| | - Deyi Yuan
- Key Laboratory of Cultivation and Protection for Non-Wood Forest Trees of Ministry of Education and the Key Laboratory of Non-Wood Forest Products of Forestry Ministry, Central South University of Forestry and Technology, Changsha, Hunan, 410004, People's Republic of China
| |
Collapse
|
22
|
Peng Z, Zhao C, Li S, Guo Y, Xu H, Hu G, Liu Z, Chen X, Chen J, Lin S, Su W, Yang X. Integration of genomics, transcriptomics and metabolomics identifies candidate loci underlying fruit weight in loquat. HORTICULTURE RESEARCH 2022; 9:uhac037. [PMID: 35137085 PMCID: PMC9071381 DOI: 10.1093/hr/uhac037] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/03/2021] [Revised: 01/12/2022] [Accepted: 01/30/2022] [Indexed: 05/05/2023]
Abstract
Fruit weight is an integral part of fruit-quality traits and directly influences commodity values and economic returns of fruit crops. Despite its importance, the molecular mechanisms underlying fruit weight remain understudied, especially for perennial fruit tree crops such as cultivated loquat (Eriobotrya japonica Lindl.). Auxin is known to regulate fruit development, whereas its role and metabolism in fruit development remain obscure in loquat. In this study, we applied a multi-omics approach, integrating whole-genome resequencing-based quantitative trait locus (QTL) mapping with an F1 population, population genomics analysis using germplasm accessions, transcriptome analysis, and metabolic profiling to identify the genomic regions potentially associated with fruit weight in loquat. We identified three major loci associated with fruit weight, supported by both QTL mapping and comparative genomic analysis between small- and big-fruited loquat cultivars. Comparison between two genotypes with contrasting fruit weight performance through transcriptomic and metabolic profiling revealed an important role of auxin in regulating fruit development, especially at the fruit enlarging stage. The multi-omics approach identified two homologs of ETHYLENE INSENSITIVE 4 (EjEIN4) and TORNADO 1 (EjTRN1) as promising candidates controlling fruit weight. Moreover, three single nucleotide polymorphism (SNP) markers were closely associated with fruit weight. Results from this study provided insights from multiple perspectives into the genetic and metabolic controls of fruit weight in loquat. The candidate genomic regions, genes, and sequence variants will facilitate understanding the molecular basis of fruit weight and lay a foundation for future breeding and manipulation of fruit weight in loquat.
Collapse
Affiliation(s)
- Ze Peng
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources and Key Laboratory of Innovation and Utilization of Horticultural Crop Resources in South China (Ministry of Agriculture and Rural Affairs), College of Horticulture, South China Agricultural University, Guangzhou, Guangdong 510642, China
| | - Chongbin Zhao
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources and Key Laboratory of Innovation and Utilization of Horticultural Crop Resources in South China (Ministry of Agriculture and Rural Affairs), College of Horticulture, South China Agricultural University, Guangzhou, Guangdong 510642, China
| | - Shuqing Li
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources and Key Laboratory of Innovation and Utilization of Horticultural Crop Resources in South China (Ministry of Agriculture and Rural Affairs), College of Horticulture, South China Agricultural University, Guangzhou, Guangdong 510642, China
| | - Yihan Guo
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources and Key Laboratory of Innovation and Utilization of Horticultural Crop Resources in South China (Ministry of Agriculture and Rural Affairs), College of Horticulture, South China Agricultural University, Guangzhou, Guangdong 510642, China
| | - Hongxia Xu
- Institute of Horticulture, Zhejiang Academy of Agricultural Sciences, Hangzhou, Zhejiang 310021, China
| | - Guibing Hu
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources and Key Laboratory of Innovation and Utilization of Horticultural Crop Resources in South China (Ministry of Agriculture and Rural Affairs), College of Horticulture, South China Agricultural University, Guangzhou, Guangdong 510642, China
| | - Zongli Liu
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources and Key Laboratory of Innovation and Utilization of Horticultural Crop Resources in South China (Ministry of Agriculture and Rural Affairs), College of Horticulture, South China Agricultural University, Guangzhou, Guangdong 510642, China
| | - Xiuping Chen
- Fruit Research Institute, Fujian Academy of Agricultural Sciences, Fuzhou, Fujian 350013, China
| | - Junwei Chen
- Institute of Horticulture, Zhejiang Academy of Agricultural Sciences, Hangzhou, Zhejiang 310021, China
| | - Shunquan Lin
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources and Key Laboratory of Innovation and Utilization of Horticultural Crop Resources in South China (Ministry of Agriculture and Rural Affairs), College of Horticulture, South China Agricultural University, Guangzhou, Guangdong 510642, China
| | - Wenbing Su
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources and Key Laboratory of Innovation and Utilization of Horticultural Crop Resources in South China (Ministry of Agriculture and Rural Affairs), College of Horticulture, South China Agricultural University, Guangzhou, Guangdong 510642, China
- Fruit Research Institute, Fujian Academy of Agricultural Sciences, Fuzhou, Fujian 350013, China
| | - Xianghui Yang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources and Key Laboratory of Innovation and Utilization of Horticultural Crop Resources in South China (Ministry of Agriculture and Rural Affairs), College of Horticulture, South China Agricultural University, Guangzhou, Guangdong 510642, China
| |
Collapse
|
23
|
Genetic and Molecular Regulation Mechanisms in the Formation and Development of Vegetable Fruit Shape. APPLIED SCIENCES-BASEL 2022. [DOI: 10.3390/app12031514] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Vegetable crops have a long history of cultivation worldwide and rich germplasm resources. With its continuous development and progress, molecular biology technology has been applied to various fields of vegetable crop research. Fruit is an important organ in vegetable crops, and fruit shape can affect the yield and commercialization of vegetables. In nature, fruits show differences in size and shape. Based on fruit shape diversity, the growth direction and coordination mechanism of fruits remain unclear. In this review, we discuss the latest research on fruit shape. In addition, we compare the current theories on the molecular mechanisms that regulate fruit growth, size, and shape in different vegetable families.
Collapse
|
24
|
Jia M, Li Y, Wang Z, Tao S, Sun G, Kong X, Wang K, Ye X, Liu S, Geng S, Mao L, Li A. TaIAA21 represses TaARF25-mediated expression of TaERFs required for grain size and weight development in wheat. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2021; 108:1754-1767. [PMID: 34643010 DOI: 10.1111/tpj.15541] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/27/2021] [Revised: 09/28/2021] [Accepted: 10/05/2021] [Indexed: 05/02/2023]
Abstract
Auxin signaling is essential for the development of grain size and grain weight, two important components for crop yield. However, no auxin/indole acetic acid repressor (Aux/IAA) has been functionally characterized to be involved in the development of wheat (Triticum aestivum L.) grains to date. Here, we identified a wheat Aux/IAA gene, TaIAA21, and studied its regulatory pathway. We found that TaIAA21 mutation significantly increased grain length, grain width, and grain weight. Cross-sections of mutant grains revealed elongated outer pericarp cells compared to those of the wild type, where the expression of TaIAA21 was detected by in situ hybridization. Screening of auxin response factor (ARF) genes highly expressed in early developing grains revealed that TaARF25 interacts with TaIAA21. In contrast, mutation of the tetraploid wheat (Triticum turgidum) ARF25 gene significantly reduced grain size and weight. RNA sequencing analysis revealed upregulation of several ethylene response factor genes (ERFs) in taiaa21 mutants which carried auxin response cis-elements in their promoter. One of them, ERF3, was upregulated in the taiaa21 mutant and downregulated in the ttarf25 mutant. Transactivation assays showed that ARF25 promotes ERF3 transcription, while mutation of TtERF3 resulted in reduced grain size and weight. Analysis of natural variations identified three TaIAA21-A haplotypes with increased allele frequencies in cultivars relative to landraces, a signature of breeding selection. Our work demonstrates that TaIAA21 works as a negative regulator of grain size and weight development via the ARF25-ERFs module and is useful for yield improvement in wheat.
Collapse
Affiliation(s)
- Meiling Jia
- National Key Facility for Crop Gene Resources and Genetic Improvement, Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Yanan Li
- National Key Facility for Crop Gene Resources and Genetic Improvement, Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Zhenyu Wang
- National Key Facility for Crop Gene Resources and Genetic Improvement, Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Shu Tao
- National Key Facility for Crop Gene Resources and Genetic Improvement, Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Guoliang Sun
- National Key Facility for Crop Gene Resources and Genetic Improvement, Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Xingchen Kong
- National Key Facility for Crop Gene Resources and Genetic Improvement, Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Ke Wang
- National Key Facility for Crop Gene Resources and Genetic Improvement, Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Xingguo Ye
- National Key Facility for Crop Gene Resources and Genetic Improvement, Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Shaoshuai Liu
- National Key Facility for Crop Gene Resources and Genetic Improvement, Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Shuaifeng Geng
- National Key Facility for Crop Gene Resources and Genetic Improvement, Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Long Mao
- National Key Facility for Crop Gene Resources and Genetic Improvement, Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Aili Li
- National Key Facility for Crop Gene Resources and Genetic Improvement, Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| |
Collapse
|
25
|
Li M, Chen R, Gu H, Cheng D, Guo X, Shi C, Li L, Xu G, Gu S, Wu Z, Chen J. Grape Small Auxin Upregulated RNA ( SAUR) 041 Is a Candidate Regulator of Berry Size in Grape. Int J Mol Sci 2021; 22:ijms222111818. [PMID: 34769249 PMCID: PMC8584205 DOI: 10.3390/ijms222111818] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Revised: 10/29/2021] [Accepted: 10/29/2021] [Indexed: 11/25/2022] Open
Abstract
Grape (Vitis vinifera) is an important horticultural crop that can be used to make juice and wine. However, the small size of the berry limits its yield. Cultivating larger berry varieties can be an effective way to solve this problem. As the largest family of auxin early response genes, SAUR (small auxin upregulated RNA) plays an important role in the growth and development of plants. Berry size is one of the important factors that determine grape quality. However, the SAUR gene family’s function in berry size of grape has not been studied systematically. We identified 60 SAUR members in the grape genome and divided them into 12 subfamilies based on phylogenetic analysis. Subsequently, we conducted a comprehensive and systematic analysis on the SAUR gene family by analyzing distribution of key amino acid residues in the domain, structural features, conserved motifs, and protein interaction network, and combined with the heterologous expression in Arabidopsis and tomato. Finally, the member related to grape berry size in SAUR gene family were screened. This genome-wide study provides a systematic analysis of grape SAUR gene family, further understanding the potential functions of candidate genes, and provides a new idea for grape breeding.
Collapse
Affiliation(s)
- Ming Li
- Zhengzhou Fruit Research Institute, Chinese Academy of Agricultural Sciences, Zhengzhou 450009, China; (M.L.); (H.G.); (D.C.); (X.G.); (C.S.); (L.L.); (G.X.); (S.G.); (Z.W.)
| | - Rui Chen
- Biotechnology Research Institute, Tianjin Academy of Agricultural Sciences, Tianjin 300192, China;
| | - Hong Gu
- Zhengzhou Fruit Research Institute, Chinese Academy of Agricultural Sciences, Zhengzhou 450009, China; (M.L.); (H.G.); (D.C.); (X.G.); (C.S.); (L.L.); (G.X.); (S.G.); (Z.W.)
| | - Dawei Cheng
- Zhengzhou Fruit Research Institute, Chinese Academy of Agricultural Sciences, Zhengzhou 450009, China; (M.L.); (H.G.); (D.C.); (X.G.); (C.S.); (L.L.); (G.X.); (S.G.); (Z.W.)
| | - Xizhi Guo
- Zhengzhou Fruit Research Institute, Chinese Academy of Agricultural Sciences, Zhengzhou 450009, China; (M.L.); (H.G.); (D.C.); (X.G.); (C.S.); (L.L.); (G.X.); (S.G.); (Z.W.)
| | - Caiyun Shi
- Zhengzhou Fruit Research Institute, Chinese Academy of Agricultural Sciences, Zhengzhou 450009, China; (M.L.); (H.G.); (D.C.); (X.G.); (C.S.); (L.L.); (G.X.); (S.G.); (Z.W.)
| | - Lan Li
- Zhengzhou Fruit Research Institute, Chinese Academy of Agricultural Sciences, Zhengzhou 450009, China; (M.L.); (H.G.); (D.C.); (X.G.); (C.S.); (L.L.); (G.X.); (S.G.); (Z.W.)
| | - Guoyi Xu
- Zhengzhou Fruit Research Institute, Chinese Academy of Agricultural Sciences, Zhengzhou 450009, China; (M.L.); (H.G.); (D.C.); (X.G.); (C.S.); (L.L.); (G.X.); (S.G.); (Z.W.)
| | - Shicao Gu
- Zhengzhou Fruit Research Institute, Chinese Academy of Agricultural Sciences, Zhengzhou 450009, China; (M.L.); (H.G.); (D.C.); (X.G.); (C.S.); (L.L.); (G.X.); (S.G.); (Z.W.)
| | - Zhiyong Wu
- Zhengzhou Fruit Research Institute, Chinese Academy of Agricultural Sciences, Zhengzhou 450009, China; (M.L.); (H.G.); (D.C.); (X.G.); (C.S.); (L.L.); (G.X.); (S.G.); (Z.W.)
| | - Jinyong Chen
- Zhengzhou Fruit Research Institute, Chinese Academy of Agricultural Sciences, Zhengzhou 450009, China; (M.L.); (H.G.); (D.C.); (X.G.); (C.S.); (L.L.); (G.X.); (S.G.); (Z.W.)
- Correspondence:
| |
Collapse
|
26
|
Mauxion JP, Chevalier C, Gonzalez N. Complex cellular and molecular events determining fruit size. TRENDS IN PLANT SCIENCE 2021; 26:1023-1038. [PMID: 34158228 DOI: 10.1016/j.tplants.2021.05.008] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/09/2021] [Revised: 05/24/2021] [Accepted: 05/28/2021] [Indexed: 06/13/2023]
Abstract
The understanding of plant organ-size determination represents an important challenge, especially because of the significant role of plants as food and renewable energy sources and the increasing need for plant-derived products. Most of the knowledge on the regulation of organ growth and the molecular network controlling cell division and cell expansion, the main drivers of growth, is derived from arabidopsis. The increasing use of crops such as tomato for research is now bringing essential information on the mechanisms underlying size control in agronomically important organs. This review describes our current knowledge, still very scarce, of the cellular and molecular mechanisms governing tomato fruit size and proposes future research to better understand the regulation of growth in this important crop.
Collapse
Affiliation(s)
- Jean-Philippe Mauxion
- INRAE, Univ. Bordeaux, UMR1332 Biologie du fruit et Pathologie, F33882 Villenave d'Ornon, France
| | - Christian Chevalier
- INRAE, Univ. Bordeaux, UMR1332 Biologie du fruit et Pathologie, F33882 Villenave d'Ornon, France
| | - Nathalie Gonzalez
- INRAE, Univ. Bordeaux, UMR1332 Biologie du fruit et Pathologie, F33882 Villenave d'Ornon, France. @inrae.fr
| |
Collapse
|
27
|
Xie Y, Ying J, Tang M, Wang Y, Xu L, Liu M, Liu L. Genome-wide identification of AUX/IAA in radish and functional characterization of RsIAA33 gene during taproot thickening. Gene 2021; 795:145782. [PMID: 34146634 DOI: 10.1016/j.gene.2021.145782] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2021] [Revised: 05/17/2021] [Accepted: 06/14/2021] [Indexed: 11/27/2022]
Abstract
Auxin/indole-3-acetic acid (Aux/IAA) genes encode short lived nuclear proteins that cooperated with auxin or auxin response factor (ARF), which are involved in plant growth and developmental processes. However, it's still ambiguous how the Aux/IAA genes regulate the process governing taproot thickening in radish. Herein, 65 Aux/IAA genes were identified from the radish genome. Gene duplication analysis showed that two pairs of tandem duplication and 17 (27%) segmental duplication events were identified among Aux/IAA family genes in radish. Transcriptomic analysis revealed that most of Aux/IAA genes (52/65) exhibited differential expression pattern in different root tissues, and six root-specific genes were highly expressed in root cortex, cambium, xylem, and root tip in radish. RT-qPCR analysis showed that the expression level of RsIAA33 was the highest at cortex splitting stage (CSS), and early expanding stage (ES). Furthermore, amiRNA-mediated gene silencing of RsIAA33 indicated that it could inhibit the reproductive growth, thus promoting taproot thickening and development. These results would provide valuable information for elucidating the molecular function of Aux/IAA genes involved in taproot thickening in radish.
Collapse
Affiliation(s)
- Yang Xie
- National Key Laboratory of Crop Genetics and Germplasm Enhancement, Key Laboratory of Horticultural Crop Biology and Genetic Improvement (East China) of MOA, College of Horticulture, Nanjing Agricultural University, Nanjing 210095, People's Republic of China; Hebei Key Laboratory of Horticultural Germplasm Excavation and Innovative Utilization, College of Horticulture Science and Technology, Hebei Normal University of Science and Technology, Qinhuangdao 066004, China
| | - Jiali Ying
- National Key Laboratory of Crop Genetics and Germplasm Enhancement, Key Laboratory of Horticultural Crop Biology and Genetic Improvement (East China) of MOA, College of Horticulture, Nanjing Agricultural University, Nanjing 210095, People's Republic of China
| | - Mingjia Tang
- National Key Laboratory of Crop Genetics and Germplasm Enhancement, Key Laboratory of Horticultural Crop Biology and Genetic Improvement (East China) of MOA, College of Horticulture, Nanjing Agricultural University, Nanjing 210095, People's Republic of China
| | - Yan Wang
- National Key Laboratory of Crop Genetics and Germplasm Enhancement, Key Laboratory of Horticultural Crop Biology and Genetic Improvement (East China) of MOA, College of Horticulture, Nanjing Agricultural University, Nanjing 210095, People's Republic of China
| | - Liang Xu
- National Key Laboratory of Crop Genetics and Germplasm Enhancement, Key Laboratory of Horticultural Crop Biology and Genetic Improvement (East China) of MOA, College of Horticulture, Nanjing Agricultural University, Nanjing 210095, People's Republic of China.
| | - Meiyan Liu
- Hebei Key Laboratory of Horticultural Germplasm Excavation and Innovative Utilization, College of Horticulture Science and Technology, Hebei Normal University of Science and Technology, Qinhuangdao 066004, China
| | - Liwang Liu
- National Key Laboratory of Crop Genetics and Germplasm Enhancement, Key Laboratory of Horticultural Crop Biology and Genetic Improvement (East China) of MOA, College of Horticulture, Nanjing Agricultural University, Nanjing 210095, People's Republic of China.
| |
Collapse
|
28
|
Ding B, Liu T, Hu C, Song Y, Hao R, Feng X, Cui T, Han Y, Li L. Comparative analysis of transcriptomic profiling to identify genes involved in the bulged surface of pear fruit ( Pyrus bretschneideri Rehd. cv. Yuluxiangli). PHYSIOLOGY AND MOLECULAR BIOLOGY OF PLANTS : AN INTERNATIONAL JOURNAL OF FUNCTIONAL PLANT BIOLOGY 2021; 27:69-80. [PMID: 33627963 PMCID: PMC7873196 DOI: 10.1007/s12298-021-00929-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/17/2020] [Revised: 12/10/2020] [Accepted: 01/11/2021] [Indexed: 06/12/2023]
Abstract
UNLABELLED Pear (Pyrus spp.) belongs to the genus Pyrus, in the family Rosaceae. Some varieties of pear fruit exhibit bulged surface, which seriously affects the quality and commodity value of the pear fruit. In this study, we performed anatomical, physiological, and transcriptomic analysis to explore the mechanism of paclobutrazol (PBZ) on the bulged surface of pear fruit. The vascular bundles of flesh were more evenly distributed, and the fruit cells were more compactly arranged and smaller in size treated with PBZ. However, the auxin (IAA) content of flesh was decreased in the treated group. Furthermore, the GO and KEGG analysis of differentially expressed genes (DEGs) showed that auxin, phenylpropanoid metabolic pathways, and transcriptional factor genes were significantly enriched on the relieved bulged surface of pear fruit. And it was analyzed that some genes contained auxin responded cis-elements from the selected DEGs in the promoter region. We conclude that PBZ plays a negative role in cell division, cell elongation, and vascular bundle development on the bulged surface of pear fruit through the involvement of auxin-related genes. This study will provide a theoretical basis for the regulation of the bulged surface of pear fruit by a growth retardant agent. SUPPLEMENTARY INFORMATION The online version of this article (10.1007/s12298-021-00929-z) contains supplementary material, which is available to authorized users.
Collapse
Affiliation(s)
- Baopeng Ding
- College of Forestry, Shanxi Agricultural University, Taigu, 030801 Shanxi China
- College of Horticulture, Shanxi Agricultural University, Taigu, 030801 Shanxi China
| | - Tingting Liu
- College of Horticulture, Shanxi Agricultural University, Taigu, 030801 Shanxi China
| | - Chaohui Hu
- College of Horticulture, Shanxi Agricultural University, Taigu, 030801 Shanxi China
| | - Yuqin Song
- College of Horticulture, Shanxi Agricultural University, Taigu, 030801 Shanxi China
| | - Ruijie Hao
- College of Horticulture, Shanxi Agricultural University, Taigu, 030801 Shanxi China
| | - Xinxin Feng
- College of Horticulture, Shanxi Agricultural University, Taigu, 030801 Shanxi China
| | - Tingting Cui
- College of Horticulture, Shanxi Agricultural University, Taigu, 030801 Shanxi China
| | - Youzhi Han
- College of Forestry, Shanxi Agricultural University, Taigu, 030801 Shanxi China
| | - Liulin Li
- College of Horticulture, Shanxi Agricultural University, Taigu, 030801 Shanxi China
| |
Collapse
|
29
|
Su Y, He H, Wang P, Ma Z, Mao J, Chen B. Genome-wide characterization and expression analyses of the auxin/indole-3-acetic acid (Aux/IAA) gene family in apple (Malus domestica). Gene 2020; 768:145302. [PMID: 33181252 DOI: 10.1016/j.gene.2020.145302] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2020] [Revised: 10/29/2020] [Accepted: 11/04/2020] [Indexed: 12/18/2022]
Abstract
Auxin is a necessary phytohormone for fruit development, accompanying the whole process of fruit growth and development. The Aux/IAA gene family is one of the early auxin-responsive gene families. At present, there were few reports involved in Aux/IAA genes in the fruit, especially in apple. In our study, we identified 42 MdAux/IAAs, phylogenetic analysis showed that Aux/IAA proteins from apple, tomato, and strawberry were clustered into 5 groups, 42 MdAux/IAAs randomly distributed on 13 chromosomes. Additionally, a comprehensive analysis of Aux/IAA gene family was completed, including gene structures, conserved motifs, phylogenetic analysis, chromosome mapping, orthologous identification, selection pressure analyses, synteny analysis, and protein interaction. We also tested the expression of MdAux/IAAs in different tissues and fruit development stages using quantitative reverse transcription-polymerase chain reaction (qRT-PCR), we found that the most members of Aux/IAA showed higher expression in seeds compared within stem and leaves, indicating they may play a role in regulating fruit development. We also declared that the expression of Aux/IAA gene was not consistent in the pericarp and seeds at the same developmental stage, 3 MdAux/IAAs of the pericarp were upregulated over 20-fold at 90 d and 5 MdAux/IAAs of the seeds were upregulated over 40-fold at 90 d. It was MdAux/IAA23 that showed extreme up-regulated expression in both pericarp and seeds. This study proved that the Aux/IAA gene families may perform a different function in apple fruit development and ripening, more importantly, it provided a foundation for further exploring the biological function of these MdAux/IAAs.
Collapse
Affiliation(s)
- Yanli Su
- Department of Horticulture, Gansu Agricultural University, Lanzhou 730000, China
| | - Honghong He
- Department of Horticulture, Gansu Agricultural University, Lanzhou 730000, China
| | - Ping Wang
- Department of Horticulture, Gansu Agricultural University, Lanzhou 730000, China
| | - Zonghuan Ma
- Department of Horticulture, Gansu Agricultural University, Lanzhou 730000, China
| | - Juan Mao
- Department of Horticulture, Gansu Agricultural University, Lanzhou 730000, China
| | - Baihong Chen
- Department of Horticulture, Gansu Agricultural University, Lanzhou 730000, China.
| |
Collapse
|
30
|
Chen S, Li Y, Zhao Y, Li G, Zhang W, Wu Y, Huang L. iTRAQ and RNA-Seq analyses revealed the effects of grafting on fruit development and ripening of oriental melon (Cucumis melo L. var. makuwa). Gene 2020; 766:145142. [PMID: 32911027 DOI: 10.1016/j.gene.2020.145142] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2020] [Revised: 07/25/2020] [Accepted: 09/02/2020] [Indexed: 02/02/2023]
Abstract
Rootstocks are among the primary factors that influence fruit yield and quality as well as melon development. To understand the differences in the molecular mechanisms and gene expression networks of fruit development between grafted and nongrafted plants in oriental melon, we performed a comprehensive analysis of the transcriptome and proteome dynamic gene/protein expression profiles during fruit development in oriental melon (Cucumis melo L. var. makuwa). Using pairwise comparisons between grafted and nongrafted samples by transcriptome analysis, we identified a large number of candidate genes involved in hormonal signaling pathways, transcription factors, resistance-related biosynthetic pathways and photosynthesis-related metabolic pathways. Many transcription factor-encoded genes were significantly more strongly expressed in the grafted samples, for example, AP2/ERF, C2H2, MYB, bHLH, and AUX/IAA, which are well-known participants in the regulation of developmental processes and hormonal signaling metabolism. Some differentially expressed genes (DEGs) were enriched in flavonoid biosynthesis and phenylpropanoid biosynthesis and determined plant resistance. In addition, some differentially expressed proteins (DEPs) were enriched in photosynthesis-related pathways, which could improve fruit quality and yield. Moreover, through weighted gene coexpression network analyses, we identified modules of coexpressed genes and hub genes specifically related to grafting for different fruit developmental stages. The results suggested that graft-related modules and hub genes were primarily associated with photosynthate metabolism and hormonal signaling pathways. The results obtained in this study provide a valuable resource for dissecting the role of candidate genes governing graft-related metabolism in oriental melon fruit, suggesting an interesting correlation with the effects of rootstock on fruit development.
Collapse
Affiliation(s)
- Sheng Chen
- Agricultural Bio-resources Research Institute, Fujian Academy of Agricultural Sciences, Fuzhou 350003, China
| | - Yongyu Li
- College of Horticulture, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Yijie Zhao
- Fuzhou Institute of Agricultural Sciences, Fuzhou 350018, China
| | - Guanfa Li
- Pingnan Agricultural Bureau, Ningde 352300, China
| | - Weiguang Zhang
- Agricultural Bio-resources Research Institute, Fujian Academy of Agricultural Sciences, Fuzhou 350003, China
| | - Yufen Wu
- Agricultural Bio-resources Research Institute, Fujian Academy of Agricultural Sciences, Fuzhou 350003, China.
| | - Lisha Huang
- Beijing Biomics Biotechnology Co., ltd., Beijing, China.
| |
Collapse
|
31
|
Israeli A, Reed JW, Ori N. Genetic dissection of the auxin response network. NATURE PLANTS 2020; 6:1082-1090. [PMID: 32807951 DOI: 10.1038/s41477-020-0739-7] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/24/2020] [Accepted: 07/06/2020] [Indexed: 05/24/2023]
Abstract
The expansion of gene families during evolution, which can generate functional overlap or specialization among their members, is a characteristic feature of signalling pathways in complex organisms. For example, families of transcriptional activators and repressors mediate responses to the plant hormone auxin. Although these regulators were identified more than 20 years ago, their overlapping functions and compensating negative feedbacks have hampered their functional analyses. Studies using loss-of-function approaches in basal land plants and gain-of-function approaches in angiosperms have in part overcome these issues but have still left an incomplete understanding. Here, we propose that renewed emphasis on genetic analysis of multiple mutants and species will shed light on the role of gene families in auxin response. Combining loss-of-function mutations in auxin-response activators and repressors can unravel complex outputs enabled by expanded gene families, such as fine-tuned developmental outcomes and robustness. Similar approaches and concepts may help to analyse other regulatory pathways whose components are also encoded by large gene families.
Collapse
Affiliation(s)
- Alon Israeli
- The Robert H. Smith Institute of Plant Sciences and Genetics in Agriculture, Hebrew University, Rehovot, Israel
| | - Jason W Reed
- Department of Biology, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA.
- Curriculum in Genetics and Molecular Biology, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA.
| | - Naomi Ori
- The Robert H. Smith Institute of Plant Sciences and Genetics in Agriculture, Hebrew University, Rehovot, Israel.
| |
Collapse
|
32
|
Khanal BP, Le TL, Si Y, Knoche M. Russet Susceptibility in Apple is Associated with Skin Cells that Are Larger, More Variable in Size, and of Reduced Fracture Strain. PLANTS 2020; 9:plants9091118. [PMID: 32872488 PMCID: PMC7570070 DOI: 10.3390/plants9091118] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/10/2020] [Revised: 08/24/2020] [Accepted: 08/28/2020] [Indexed: 01/28/2023]
Abstract
Russeting is an economically important surface disorder in apple (Malus × domestica Borkh). Indirect evidence suggests an irregular skin structure may be the cause of the phenomenon. The objective of this study was to characterize epidermal and hypodermal cell morphology and the mechanical properties of the skins of apple cultivars of differing russet susceptibility. Dimensions of epidermal and hypodermal cells were determined using microscopy. Stiffness (S), maximum force (Fmax), and maximum strain (εmax) at failure were quantified using uniaxial tensile tests of skin strips. Particularly during early fruit development, epidermal cells (EC) and hypodermal cells (HC) in russet non-susceptible cultivars occurred in greater numbers per unit area than in russet-susceptible ones. The EC and HC were lower in height, shorter in length, and of reduced tangential surface area. There were little differences in S or Fmax between non-susceptible and susceptible cultivars. However, the εmax were higher for the skins of non-susceptible cultivars, than for those of susceptible ones. This difference was larger for the young than for the later growth stages. It is concluded that russet-susceptible cultivars generally have larger cells and a wider distribution of cell sizes for both EC and HC. These result in decreased εmax for the skin during early fruit development when russet susceptibility is high. This increases the chances of skin failures which is known to trigger russeting.
Collapse
|
33
|
Cucumber Fruit Size and Shape Variations Explored from the Aspects of Morphology, Histology, and Endogenous Hormones. PLANTS 2020; 9:plants9060772. [PMID: 32575654 PMCID: PMC7356835 DOI: 10.3390/plants9060772] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/14/2020] [Revised: 06/05/2020] [Accepted: 06/11/2020] [Indexed: 11/17/2022]
Abstract
Fruit size and shape are important qualities and yield traits in cucumber (Cucumis sativus L.), but the factors that influence fruit size and shape remain to be explored. In this study, we investigated the dynamic changes of fruit size and shape from the aspects of morphology, cellular levels and endogenous hormones for nine typical cucumber inbred lines. The results show that fruit length had a strong positive correlation to the cell number in the longitudinal section of fruit throughout the four stages of 0, 6, 12, and 30 DAA (days after anthesis). However, the significant negative correlations were found between fruit length and the fruit cell size at 12 and 30 DAA. Furthermore, fruit diameter was positively correlated to the cell number in the cross section at all the investigated fruit growth stages. The indole-3-acetic acid (IAA) content showed significant positive correlations to the fruit length at all fruit growth stages of −6, −3, 0, 3, 6, 9 and 12 DAA, but IAA content and fruit diameter showed significant negative correlations for all the stages except for at −6 DAA. The trans-zeatin riboside (tZR), zeatin (ZT), gibberellic acid (GA3) and jasmonic acid (JA) content had a positive or negative correlation with fruit length or diameter only at certain stages. Neither fruit length nor diameter had significant correlations to abscisic acid (ABA) content. These results indicate that variations in fruit size and shape of different cucumber inbred lines mainly result from the differences in fruit cell number and endogenous IAA content. The present work is the first to propose cucumber fruit size and shape changes from the combined aspects of morphology, cellular levels, and endogenous hormones.
Collapse
|
34
|
Jones SI, Hunt MR, Vodkin LO. An embryo lethal transgenic line manifests global expression changes and elevated protein/oil ratios in heterozygous soybean plants. PLoS One 2020; 15:e0233721. [PMID: 32516314 PMCID: PMC7282645 DOI: 10.1371/journal.pone.0233721] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2020] [Accepted: 05/11/2020] [Indexed: 11/18/2022] Open
Abstract
Understanding the molecular processes of seed development is important especially in agronomic crops that produce large amounts of nutrient reserves. Because soybean is a vital source of vegetable protein worldwide, producers are concerned about increasing the total amount of protein in the seed without substantially lowering the amount of oil, another economically important product. Here we describe a transgenic soybean line with increased protein and protein/oil ratio, containing an average of 42.2% protein vs. 38.5% in controls and with a protein/oil ratio of 2.02 vs. 1.76 in controls over several generations of greenhouse growth. Other phenotypic data show that the seeds are heavier, although there are overall lower yields per plant. We postulate these effects result from insertion site mutagenesis by the transgenic construct. As this line never achieves homozygosity and appears to be embryo lethal when homozygous, one functional copy of the gene is most likely essential for normal seed development. Global transcript analyses using RNA-Seq for 88,000 gene models over two stages of cotyledon development revealed that more genes are over-expressed in the transgenic line including ribosomal protein related genes and those in the membrane protein and transporters families. Localization of the insertion site should reveal the genes and developmental program that has been perturbed by the transgenic construct, resulting in this economically interesting increase in protein and the protein/oil ratio.
Collapse
Affiliation(s)
- Sarah I. Jones
- Department of Crop Sciences, University of Illinois, Urbana, Illinois, United States of America
| | - Matt R. Hunt
- Department of Crop Sciences, University of Illinois, Urbana, Illinois, United States of America
| | - Lila O. Vodkin
- Department of Crop Sciences, University of Illinois, Urbana, Illinois, United States of America
| |
Collapse
|
35
|
Zhang H, Tan J, Zhang M, Huang S, Chen X. Comparative Transcriptomic Analysis of Two Bottle Gourd Accessions Differing in Fruit Size. Genes (Basel) 2020; 11:genes11040359. [PMID: 32230807 PMCID: PMC7230174 DOI: 10.3390/genes11040359] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2020] [Revised: 03/25/2020] [Accepted: 03/26/2020] [Indexed: 12/13/2022] Open
Abstract
The bottle gourd (Lagenaria siceraria) is an important horticultural and medicinal crop with high nutritional value. This study aimed at examining the molecular regulation of fruit size in bottle gourd. We performed transcriptome sequencing of two bottle gourd cultivars differing in their fruit size. The average fruit length and weight of the cultivar Hang (39.48 cm/624.4 g) were higher than those of the cultivar USA (10.34 cm/152.8 g) at maturity. Transcriptome sequencing and assembly resulted in 89,347 unigenes. A total of 1250 differentially expressed genes (DEG) were found between the two cultivars, including 422 upregulated genes and 828 downregulated genes in Hang as compared to USA. Genes related to cell wall metabolism, phytohormones, cell cycle, and cell division showed significant differential expression between the two cultivars. DEGs encoding transcription factors (TF) from nine TF families were also identified. The ethylene response factor family was the most enriched among these families. Our study provides a basis for further investigations of the molecular regulation of fruit size in bottle gourd.
Collapse
|
36
|
Hou Y, Li H, Zhai L, Xie X, Li X, Bian S. Identification and functional characterization of the Aux/IAA gene VcIAA27 in blueberry. PLANT SIGNALING & BEHAVIOR 2019; 15:1700327. [PMID: 31822153 PMCID: PMC7012069 DOI: 10.1080/15592324.2019.1700327] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/08/2019] [Revised: 11/28/2019] [Accepted: 11/29/2019] [Indexed: 05/30/2023]
Abstract
Aux/IAA genes are an important class of players in diverse developmental processes in plants, which generally exert their functions through the auxin signaling pathway. Blueberry is an economically and nutritionally important berry-bearing crop. However, Aux/IAA genes remain unknown in blueberry. In the present study, an Aux/IAA gene (VcIAA27) was identified and characterized in blueberry, and it is most closely related to IAA27 in other plant species. Expression analysis indicated that VcIAA27 transcripts accumulate highly in shoot, flower and fruit. Interestingly, VcIAA27 was highly expressed at early fruit developmental stages, and dramatically decreased from the onset of fruit ripening, implying that VcIAA27 possibly plays important roles during fruit enlargement. Meanwhile, the analysis of promoter activity in Arabidopsis showed that strong GUS signal was detected in the trichome and hydathodes of leaves, receptacle of silique, and lateral roots of seedling. Overexpression of VcIAA27 in Arabidopsis leads to auxin-related defects such as downward-curled leaves, short or sterile siliques, shorter stature, and more shoot branches. Moreover, qPCR analysis indicated that VcIAA27 is able to alter the expression patterns of the auxin-related genes BRU6, SAG13, SAUR26 in Arabidopsis, suggesting that VcIAA27 might be negatively involved in the auxin signaling pathway. The findings will greatly contribute to future investigation of Aux/IAA-mediated mechanisms that control blueberry development, especially fruit development and ripening.
Collapse
Affiliation(s)
- Yanming Hou
- College of Plant Science, Jilin University, Changchun, Jilin, China
| | - Hongxue Li
- College of Plant Science, Jilin University, Changchun, Jilin, China
| | - Lulu Zhai
- College of Plant Science, Jilin University, Changchun, Jilin, China
| | - Xin Xie
- College of Plant Science, Jilin University, Changchun, Jilin, China
| | - Xuyan Li
- College of Plant Science, Jilin University, Changchun, Jilin, China
| | - Shaomin Bian
- College of Plant Science, Jilin University, Changchun, Jilin, China
| |
Collapse
|
37
|
Quinet M, Angosto T, Yuste-Lisbona FJ, Blanchard-Gros R, Bigot S, Martinez JP, Lutts S. Tomato Fruit Development and Metabolism. FRONTIERS IN PLANT SCIENCE 2019; 10:1554. [PMID: 31850035 PMCID: PMC6895250 DOI: 10.3389/fpls.2019.01554] [Citation(s) in RCA: 155] [Impact Index Per Article: 31.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2019] [Accepted: 11/07/2019] [Indexed: 05/20/2023]
Abstract
Tomato (Solanum lycopersicum L.) belongs to the Solanaceae family and is the second most important fruit or vegetable crop next to potato (Solanum tuberosum L.). It is cultivated for fresh fruit and processed products. Tomatoes contain many health-promoting compounds including vitamins, carotenoids, and phenolic compounds. In addition to its economic and nutritional importance, tomatoes have become the model for the study of fleshy fruit development. Tomato is a climacteric fruit and dramatic metabolic changes occur during its fruit development. In this review, we provide an overview of our current understanding of tomato fruit metabolism. We begin by detailing the genetic and hormonal control of fruit development and ripening, after which we document the primary metabolism of tomato fruits, with a special focus on sugar, organic acid, and amino acid metabolism. Links between primary and secondary metabolic pathways are further highlighted by the importance of pigments, flavonoids, and volatiles for tomato fruit quality. Finally, as tomato plants are sensitive to several abiotic stresses, we briefly summarize the effects of adverse environmental conditions on tomato fruit metabolism and quality.
Collapse
Affiliation(s)
- Muriel Quinet
- Groupe de Recherche en Physiologie Végétale, Earth and Life Institute, Université Catholique de Louvain, Louvain-la-Neuve, Belgium
| | - Trinidad Angosto
- Centro de Investigación en Biotecnología Agroalimentaria (BITAL), Universidad de Almería, Almería, Spain
| | - Fernando J. Yuste-Lisbona
- Centro de Investigación en Biotecnología Agroalimentaria (BITAL), Universidad de Almería, Almería, Spain
| | - Rémi Blanchard-Gros
- Groupe de Recherche en Physiologie Végétale, Earth and Life Institute, Université Catholique de Louvain, Louvain-la-Neuve, Belgium
| | - Servane Bigot
- Groupe de Recherche en Physiologie Végétale, Earth and Life Institute, Université Catholique de Louvain, Louvain-la-Neuve, Belgium
| | | | - Stanley Lutts
- Groupe de Recherche en Physiologie Végétale, Earth and Life Institute, Université Catholique de Louvain, Louvain-la-Neuve, Belgium
| |
Collapse
|
38
|
Guan D, Hu X, Diao D, Wang F, Liu Y. Genome-Wide Analysis and Identification of the Aux/IAA Gene Family in Peach. Int J Mol Sci 2019; 20:E4703. [PMID: 31547521 PMCID: PMC6801721 DOI: 10.3390/ijms20194703] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2019] [Revised: 09/17/2019] [Accepted: 09/19/2019] [Indexed: 01/13/2023] Open
Abstract
The Auxin/indole-3-acetic acid (Aux/IAA) repressor genes down-regulate the auxin response pathway during many stages of plant and fruit development. In order to determine if and how Aux/IAAs participate in governing texture and hardness in stone fruit maturation, we identified 23 Aux/IAA genes in peach, confirmed by the presence of four conserved domains. In this work, we used fluorescence microscopy with PpIAA-GFP fusion reporters to observe their nuclear localization. We then conducted PCR-based differential expression analysis in "melting" and "stony hard" varieties of peach, and found that in the "melting" variety, nine PpIAAs exhibited peak expression in the S4-3 stage of fruit maturation, with PpIAA33 showing the highest (>120-fold) induction. The expression of six PpIAAs peaked in the S4-2 stage, with PpIAA14 expressed the most highly. Only PpIAA15/16 showed higher expression in the "stony hard" variety than in the "melting" variety, both peaking in the S3 stage. In contrast, PpIAA32 had the highest relative expression in buds, flowers, young and mature leaves, and roots. Our study provides insights into the expression patterns of Aux/IAA developmental regulators in response to auxin during fruit maturation, thus providing insight into their potential development as useful markers for quantitative traits associated with fruit phenotype.
Collapse
Affiliation(s)
- Dan Guan
- Beijing Key Laboratory of New Technique in Agricultural Application, Beijing University of Agriculture, Beijing 102206, China.
- College of Plant Science and Technology, Beijing University of Agriculture, Beijing 102206, China.
| | - Xiao Hu
- Beijing Key Laboratory of New Technique in Agricultural Application, Beijing University of Agriculture, Beijing 102206, China.
- College of Plant Science and Technology, Beijing University of Agriculture, Beijing 102206, China.
| | - Donghui Diao
- College of Bioscience and Resources Environment, Beijing University of Agriculture, Beijing 102206, China.
| | - Fang Wang
- Food science and Engineering College, Beijing University of Agriculture, Beijing 102206, China.
| | - Yueping Liu
- College of Bioscience and Resources Environment, Beijing University of Agriculture, Beijing 102206, China.
- Key Laboratory for Northern Urban Agriculture Ministry of Agriculture and Rural Affairs, Beijing University of Agriculture, Beijing 102206, China.
| |
Collapse
|
39
|
Liu J, Feng K, Hou X, Li H, Wang G, Xu Z, Xiong A. Transcriptome profiling reveals the association of multiple genes and pathways contributing to hormonal control in celery leaves. Acta Biochim Biophys Sin (Shanghai) 2019; 51:524-534. [PMID: 30939194 DOI: 10.1093/abbs/gmz034] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2018] [Indexed: 12/25/2022] Open
Abstract
Celery is a vital vegetable belonging to the Apiaceae family. The leaves of celery are its main edible part with high nutritional value. Hormone signaling plays diverse and critical roles in controlling plant growth and development. However, the molecular mechanism of hormone regulating growth and development in celery leaves has not been investigated. Here, we aimed to understand the molecular functions of genes related to hormone metabolism in celery leaf growth and development. A total of 77 hormone-related differentially expressed genes (DEGs) were identified from the transcriptome of celery leaves at three development stages. The roles and interactions of DEGs in the growth and development of celery leaves were discussed. The contents of multiple hormones (IAA, ZR, ABA, BR, GA3, and MeJA) in celery leaf development were also detected. The changes of endogenous hormone level during the development of celery leaves could be regulated by the expressions of hormone-related genes. Our results indicated that the plant hormones had a complex regulatory mechanism for the growth of celery leaves. Our current findings will provide potential valuable references for the future research on celery leaf development.
Collapse
Affiliation(s)
- Jiexia Liu
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Ministry of Agriculture and Rural Affairs, Key Laboratory of Biology and Germplasm Enhancement of Horticultural Crops in East China, College of Horticulture, Nanjing Agricultural University, Nanjing, China
| | - Kai Feng
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Ministry of Agriculture and Rural Affairs, Key Laboratory of Biology and Germplasm Enhancement of Horticultural Crops in East China, College of Horticulture, Nanjing Agricultural University, Nanjing, China
| | - Xilin Hou
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Ministry of Agriculture and Rural Affairs, Key Laboratory of Biology and Germplasm Enhancement of Horticultural Crops in East China, College of Horticulture, Nanjing Agricultural University, Nanjing, China
| | - Hui Li
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Ministry of Agriculture and Rural Affairs, Key Laboratory of Biology and Germplasm Enhancement of Horticultural Crops in East China, College of Horticulture, Nanjing Agricultural University, Nanjing, China
| | - Guanglong Wang
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Ministry of Agriculture and Rural Affairs, Key Laboratory of Biology and Germplasm Enhancement of Horticultural Crops in East China, College of Horticulture, Nanjing Agricultural University, Nanjing, China
| | - Zhisheng Xu
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Ministry of Agriculture and Rural Affairs, Key Laboratory of Biology and Germplasm Enhancement of Horticultural Crops in East China, College of Horticulture, Nanjing Agricultural University, Nanjing, China
| | - Aisheng Xiong
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Ministry of Agriculture and Rural Affairs, Key Laboratory of Biology and Germplasm Enhancement of Horticultural Crops in East China, College of Horticulture, Nanjing Agricultural University, Nanjing, China
| |
Collapse
|
40
|
Mignolli F, Vidoz ML, Picciarelli P, Mariotti L. Gibberellins modulate auxin responses during tomato (Solanum lycopersicum L.) fruit development. PHYSIOLOGIA PLANTARUM 2019; 165:768-779. [PMID: 29888535 DOI: 10.1111/ppl.12770] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/26/2017] [Revised: 06/04/2018] [Accepted: 06/05/2018] [Indexed: 06/08/2023]
Abstract
In tomato, auxin and gibberellins (GAs) interact with each other to drive fruit growth and development. While the role of auxin in directing GA biosynthesis and signal is already known, very little information has been obtained about GA-mediated control of auxin signalling and response. Interestingly, we show that gibberellic acid (GA3 ) is able to modify the expression of several auxin signalling genes in the partial auxin-insensitive diageotropica (dgt) mutant, suggesting that GAs may override the control of DGT on auxin signal. Procera (pro) mutation, which confers a constitutively active GA signal, enhances the effects of exogenous auxin, indicating that PRO may act as a negative effector of auxin responses in fruits. Indeed, transcript modulation of some auxin/indole acetic acid and auxin response factor genes in auxin-treated dgt/pro fruits suggests that PRO controls their expression possibly bypassing DGT. It was also shown that GA biosynthesis, in response to auxin treatment, is largely controlled by DGT. It is therefore conceivable that the DGT-mediated increase of active GAs in auxin-treated or pollinated fruits would promote PRO degradation, which in turn activates part of the auxin signalling cascade.
Collapse
Affiliation(s)
- Francesco Mignolli
- Instituto de Botánica del Nordeste (IBONE), UNNE-CONICET, 3400 Corrientes, Argentina
| | - Maria L Vidoz
- Instituto de Botánica del Nordeste (IBONE), UNNE-CONICET, 3400 Corrientes, Argentina
- Facultad de Ciencias Agrarias, UNNE, 3400 Corrientes, Argentina
| | - Piero Picciarelli
- Dipartimento di Scienze Agrarie, Alimentari e Agro-ambientali, Università di Pisa, 56124 Pisa, Italy
| | - Lorenzo Mariotti
- Dipartimento di Scienze Agrarie, Alimentari e Agro-ambientali, Università di Pisa, 56124 Pisa, Italy
| |
Collapse
|
41
|
Zhang J, Wang Y, Naeem M, Zhu M, Li J, Yu X, Hu Z, Chen G. An AGAMOUS MADS-box protein, SlMBP3, regulates the speed of placenta liquefaction and controls seed formation in tomato. JOURNAL OF EXPERIMENTAL BOTANY 2019; 70:909-924. [PMID: 30481310 DOI: 10.1093/jxb/ery418] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/14/2018] [Accepted: 11/18/2018] [Indexed: 05/25/2023]
Abstract
AGAMOUS (AG) MADS-box transcription factors have been shown to play crucial roles in floral organ and fruit development in angiosperms. Here, we isolated a tomato (Solanum lycopersicum) AG MADS-box gene SlMBP3 and found that it is preferentially expressed in flowers and during early fruit developmental stages in the wild-type (WT), and in the Nr (never ripe) and rin (ripening inhibitor) mutants. Its transcripts are notably accumulated in the pistils; transcripts abundance decrease during seed and placental development, increasing again during flower development. SlMBP3-RNAi tomato plants displayed fleshy placenta without locular gel and extremely malformed seeds with no seed coat, while SlMBP3-overexpressing plants exhibited advanced liquefaction of the placenta and larger seeds. Enzymatic activities related to cell wall modification, and the contents of cell wall components and pigments were dramatically altered in the placentas of SlMBP3-RNAi compared with the WT. Alterations in these physiological features were also observed in the placentas of SlMBP3-overexpressing plants. The lignin content of mature seeds in SlMBP3-RNAi lines was markedly lower than that in the WT. RNA-seq and qRT-PCR analyses revealed that genes involved in seed development and the biosynthesis of enzymes related to cell wall modification, namely gibberellin, indole-3-acetic acid, and abscisic acid were down-regulated in the SlMBP3-RNAi lines. Taking together, our results demonstrate that SlMBP3 is involved in the regulation of placenta and seed development in tomato.
Collapse
Affiliation(s)
- Jianling Zhang
- Laboratory of Molecular Biology of Tomato, Bioengineering College, Chongqing University, Chongqing, People's Republic of China
| | - Yicong Wang
- Laboratory of Molecular Biology of Tomato, Bioengineering College, Chongqing University, Chongqing, People's Republic of China
| | - Muhammad Naeem
- Laboratory of Molecular Biology of Tomato, Bioengineering College, Chongqing University, Chongqing, People's Republic of China
| | - Mingku Zhu
- Laboratory of Molecular Biology of Tomato, Bioengineering College, Chongqing University, Chongqing, People's Republic of China
| | - Jing Li
- Laboratory of Molecular Biology of Tomato, Bioengineering College, Chongqing University, Chongqing, People's Republic of China
| | - Xiaohui Yu
- Laboratory of Molecular Biology of Tomato, Bioengineering College, Chongqing University, Chongqing, People's Republic of China
| | - Zongli Hu
- Laboratory of Molecular Biology of Tomato, Bioengineering College, Chongqing University, Chongqing, People's Republic of China
| | - Guoping Chen
- Laboratory of Molecular Biology of Tomato, Bioengineering College, Chongqing University, Chongqing, People's Republic of China
| |
Collapse
|
42
|
Waseem M, Ahmad F, Habib S, Li Z. Genome-wide identification of the auxin/indole-3-acetic acid (Aux/IAA) gene family in pepper, its characterisation, and comprehensive expression profiling under environmental and phytohormones stress. Sci Rep 2018; 8:12008. [PMID: 30104758 PMCID: PMC6089902 DOI: 10.1038/s41598-018-30468-9] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2018] [Accepted: 07/31/2018] [Indexed: 12/23/2022] Open
Abstract
Auxin is an essential phytohormone that plays a crucial role in the growth and development of plants in stressful environments. Here, we analysed the auxin/indole-3-acetic acid (Aux/IAA) gene family, which produces auxin in pepper, and succeeded in identifying 27 putative members containing four conserved domains (I. II. III and IV) in their protein sequences. Sequence analysis, chromosomal mapping and motif prediction of all identified CaAux/IAA genes were performed. It was observed that these genes contained four conserved motifs divided into nine different groups and distributed across nine chromosomes in pepper plants. RNA-seq analysis revealed the organ specific expression of many CaAux/IAA genes. However, the majority of genes were expressed with high expression levels in the early stages of fruit development. However, the maximum expression level of the CA03g34540 gene was observed in the breaker stage. Moreover, thirteen CaAux/IAA genes were labelled as early responsive genes to various phytohormone and abiotic stresses. Furthermore, RNA-seq analysis in response to pathogen inoculation (PepMoV, TMV strains P0/P1, and Phytophthora capsici) showed distinct expression profiles of all identified genes, suggesting the diverse expression nature of genes under these stress conditions. Overall, this study provides insight into the dynamic response of CaAux/IAA genes under environmental and phytohormones stress conditions, providing bases to further explore the importance of these genes through mutant/transgenic analysis in pepper.
Collapse
Affiliation(s)
- Muhammad Waseem
- School of Life Sciences, Chongqing University, Shapingba, Chongqing, China
| | - Fiaz Ahmad
- Institute of Pure and Applied Biology, Bahauddin Zakariya University, Multan, 60800, Pakistan
| | - Sidra Habib
- School of Life Sciences, Chongqing University, Shapingba, Chongqing, China
| | - Zhengguo Li
- School of Life Sciences, Chongqing University, Shapingba, Chongqing, China.
| |
Collapse
|
43
|
Liu M, Chen Y, Chen Y, Shin JH, Mila I, Audran C, Zouine M, Pirrello J, Bouzayen M. The tomato Ethylene Response Factor Sl-ERF.B3 integrates ethylene and auxin signaling via direct regulation of Sl-Aux/IAA27. THE NEW PHYTOLOGIST 2018; 219:631-640. [PMID: 29701899 DOI: 10.1111/nph.15165] [Citation(s) in RCA: 54] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/29/2017] [Accepted: 03/14/2018] [Indexed: 05/02/2023]
Abstract
Plant growth and development is coordinated by complex networks of interacting hormones, and cross-talk between ethylene and auxin signaling is essential for a wide range of plant developmental processes. Nevertheless, the molecular links underlying the interaction between the two hormones remain poorly understood. In order to decipher the cross-talk between the Ethylene Response Factor Sl-ERF.B3 and Sl-IAA27, mediating ethylene and auxin signaling, respectively, we combined reverse genetic approaches, physiological methods, transactivation experiments and electrophoretic mobility shift assays. Sl-ERF.B3 is responsive to both ethylene and auxin and ectopic expression of its dominant repressor version (ERF.B3-SRDX) results in impaired sensitivity to auxin with phenotypes recalling those previously reported for Sl-IAA27 downregulated tomato lines. The expression of Sl-IAA27 is dramatically reduced in the ERF.B3-SRDX lines and Sl-ERF.B3 is shown to regulate the expression of Sl-IAA27 via direct binding to its promoter. The data support a model in which the ethylene-responsive Sl-ERF.B3 integrates ethylene and auxin signaling via regulation of the expression of the auxin signaling component Sl-IAA27. The study uncovers a molecular mechanism that links ethylene and auxin signaling in tomato.
Collapse
Affiliation(s)
- Mingchun Liu
- Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, 610065, Sichuan, China
| | - Yao Chen
- Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, 610065, Sichuan, China
| | - Ya Chen
- Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, 610065, Sichuan, China
| | - Jun-Hye Shin
- INP-ENSA Toulouse, UMR990 Génomique et Biotechnologie des Fruits, Université de Toulouse, Avenue de l'Agrobiopole, Castanet-Tolosan, CS, 32607, F-31326, France
- UMR990 Génomique et Biotechnologie des Fruits, INRA, 24 Chemin de Borde Rouge, Castanet-Tolosan, CS, 52627, F-31326, France
| | - Isabelle Mila
- INP-ENSA Toulouse, UMR990 Génomique et Biotechnologie des Fruits, Université de Toulouse, Avenue de l'Agrobiopole, Castanet-Tolosan, CS, 32607, F-31326, France
- UMR990 Génomique et Biotechnologie des Fruits, INRA, 24 Chemin de Borde Rouge, Castanet-Tolosan, CS, 52627, F-31326, France
| | - Corinne Audran
- LIPM, INRA, CNRS, Université de Toulouse, Castanet-Tolosan, CS, 31326, France
| | - Mohamed Zouine
- INP-ENSA Toulouse, UMR990 Génomique et Biotechnologie des Fruits, Université de Toulouse, Avenue de l'Agrobiopole, Castanet-Tolosan, CS, 32607, F-31326, France
- UMR990 Génomique et Biotechnologie des Fruits, INRA, 24 Chemin de Borde Rouge, Castanet-Tolosan, CS, 52627, F-31326, France
| | - Julien Pirrello
- INP-ENSA Toulouse, UMR990 Génomique et Biotechnologie des Fruits, Université de Toulouse, Avenue de l'Agrobiopole, Castanet-Tolosan, CS, 32607, F-31326, France
- UMR990 Génomique et Biotechnologie des Fruits, INRA, 24 Chemin de Borde Rouge, Castanet-Tolosan, CS, 52627, F-31326, France
| | - Mondher Bouzayen
- INP-ENSA Toulouse, UMR990 Génomique et Biotechnologie des Fruits, Université de Toulouse, Avenue de l'Agrobiopole, Castanet-Tolosan, CS, 32607, F-31326, France
- UMR990 Génomique et Biotechnologie des Fruits, INRA, 24 Chemin de Borde Rouge, Castanet-Tolosan, CS, 52627, F-31326, France
| |
Collapse
|
44
|
Luo J, Zhou JJ, Zhang JZ. Aux/IAA Gene Family in Plants: Molecular Structure, Regulation, and Function. Int J Mol Sci 2018; 19:ijms19010259. [PMID: 29337875 PMCID: PMC5796205 DOI: 10.3390/ijms19010259] [Citation(s) in RCA: 219] [Impact Index Per Article: 36.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2017] [Revised: 01/10/2018] [Accepted: 01/13/2018] [Indexed: 12/31/2022] Open
Abstract
Auxin plays a crucial role in the diverse cellular and developmental responses of plants across their lifespan. Plants can quickly sense and respond to changes in auxin levels, and these responses involve several major classes of auxin-responsive genes, including the Auxin/Indole-3-Acetic Acid (Aux/IAA) family, the auxin response factor (ARF) family, small auxin upregulated RNA (SAUR), and the auxin-responsive Gretchen Hagen3 (GH3) family. Aux/IAA proteins are short-lived nuclear proteins comprising several highly conserved domains that are encoded by the auxin early response gene family. These proteins have specific domains that interact with ARFs and inhibit the transcription of genes activated by ARFs. Molecular studies have revealed that Aux/IAA family members can form diverse dimers with ARFs to regulate genes in various ways. Functional analyses of Aux/IAA family members have indicated that they have various roles in plant development, such as root development, shoot growth, and fruit ripening. In this review, recently discovered details regarding the molecular characteristics, regulation, and protein-protein interactions of the Aux/IAA proteins are discussed. These details provide new insights into the molecular basis of the Aux/IAA protein functions in plant developmental processes.
Collapse
Affiliation(s)
- Jie Luo
- College of Horticulture and Forestry Science, Hubei Engineering Technology Research Center for Forestry Information, Huazhong Agricultural University, Wuhan 430070, China.
| | - Jing-Jing Zhou
- College of Horticulture and Forestry Science, Hubei Engineering Technology Research Center for Forestry Information, Huazhong Agricultural University, Wuhan 430070, China.
| | - Jin-Zhi Zhang
- Key Laboratory of Horticultural Plant Biology (Ministry of Education), College of Horticulture and Forestry Science, Huazhong Agricultural University, Wuhan 430070, China.
| |
Collapse
|
45
|
Liu K, Yuan C, Feng S, Zhong S, Li H, Zhong J, Shen C, Liu J. Genome-wide analysis and characterization of Aux/IAA family genes related to fruit ripening in papaya (Carica papaya L.). BMC Genomics 2017; 18:351. [PMID: 28476147 PMCID: PMC5420106 DOI: 10.1186/s12864-017-3722-6] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2016] [Accepted: 04/25/2017] [Indexed: 12/11/2022] Open
Abstract
Background Auxin/indole-3-acetic acid (Aux/IAA) family genes encode short-lived nuclear proteins that mediate the responses of auxin-related genes and are involved in several plant developmental and growth processes. However, how Aux/IAA genes function in the fruit development and ripening of papaya (Carica papaya L.) is largely unknown. Results In this study, a comprehensive identification and a distinctive expression analysis of 18 C. papaya Aux/IAA (CpIAA) genes were performed using newly updated papaya reference genome data. The Aux/IAA gene family in papaya is slightly smaller than that in Arabidopsis, but all of the phylogenetic subfamilies are represented. Most of the CpIAA genes are responsive to various phytohormones and expressed in a tissues-specific manner. To understand the putative biological functions of the CpIAA genes involved in fruit development and ripening, quantitative real-time PCR was used to test the expression profiling of CpIAA genes at different stages. Furthermore, an IAA treatment significantly delayed the ripening process in papaya fruit at the early stages. The expression changes of CpIAA genes in ACC and 1-MCP treatments suggested a crosstalk between auxin and ethylene during the fruit ripening process of papaya. Conclusions Our study provided comprehensive information on the Aux/IAA family in papaya, including gene structures, phylogenetic relationships and expression profiles. The involvement of CpIAA gene expression changes in fruit development and ripening gives us an opportunity to understand the roles of auxin signaling in the maturation of papaya reproductive organs. Electronic supplementary material The online version of this article (doi:10.1186/s12864-017-3722-6) contains supplementary material, which is available to authorized users.
Collapse
Affiliation(s)
- Kaidong Liu
- Life Science and Technology School, Lingnan Normal University, Zhanjiang, Guangdong, 524048, China.
| | - Changchun Yuan
- Life Science and Technology School, Lingnan Normal University, Zhanjiang, Guangdong, 524048, China.
| | - Shaoxian Feng
- Life Science and Technology School, Lingnan Normal University, Zhanjiang, Guangdong, 524048, China
| | - Shuting Zhong
- Life Science and Technology School, Lingnan Normal University, Zhanjiang, Guangdong, 524048, China
| | - Haili Li
- Life Science and Technology School, Lingnan Normal University, Zhanjiang, Guangdong, 524048, China
| | - Jundi Zhong
- Life Science and Technology School, Lingnan Normal University, Zhanjiang, Guangdong, 524048, China
| | - Chenjia Shen
- College of Life and Environmental Science, Hangzhou Normal University, Hangzhou, 310036, China
| | - Jinxiang Liu
- Life Science and Technology School, Lingnan Normal University, Zhanjiang, Guangdong, 524048, China
| |
Collapse
|
46
|
Ren Z, Liu R, Gu W, Dong X. The Solanum lycopersicum auxin response factor SlARF2 participates in regulating lateral root formation and flower organ senescence. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2017; 256:103-111. [PMID: 28167023 DOI: 10.1016/j.plantsci.2016.12.008] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2016] [Revised: 12/08/2016] [Accepted: 12/09/2016] [Indexed: 05/04/2023]
Abstract
ARF2 as apleiotropic developmental regulator has been reported in Arabidopsis thaliana and tomato (Solanum lycopersicum). The present study showed SlARF2 transcripts in all tomato plant tissues but with higher accumulation in flowers. During bud-anthesis stages, SlARF2 transcripts showed a dynamic expression pattern in sepal, stamen, ovary and petal. Hormone treatment analysis suggested that SlARF2 transcript accumulation was positively regulated by auxin and gibberellic acid, and negatively regulated by ethylene in tomato seedlings. Phenotypes and molecular analyses of SlARF2-upregulated transgenic tomato indicated that SlARF2 regulated tomato lateral root formation and flower organ senescence may be partially mediated by regulating the gene expression of auxin and ethylene response factors. The data enlarges the functional characterization of SlARF2 in tomato, and broadens our understanding of auxin signaling in regulating plant growth and development.
Collapse
Affiliation(s)
- Zhenxin Ren
- Department of Space Radiobiology, Key Laboratory of Heavy Ion Radiation Biology and Medicine, Institute of Modern Physics, Chinese Academy of Sciences, China.
| | - Ruiyuan Liu
- Department of Biophysics, Institute of Modern Physics, Chinese Academy of Sciences, China
| | - Wenting Gu
- Department of Biophysics, Institute of Modern Physics, Chinese Academy of Sciences, China
| | - Xicun Dong
- Department of Biophysics, Institute of Modern Physics, Chinese Academy of Sciences, China.
| |
Collapse
|
47
|
Guillotin B, Etemadi M, Audran C, Bouzayen M, Bécard G, Combier JP. Sl-IAA27 regulates strigolactone biosynthesis and mycorrhization in tomato (var. MicroTom). THE NEW PHYTOLOGIST 2017; 213:1124-1132. [PMID: 27748948 DOI: 10.1111/nph.14246] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/17/2016] [Accepted: 09/07/2016] [Indexed: 05/06/2023]
Abstract
Root colonization by arbuscular mycorrhizal (AM) fungi is a complex and finely tuned process. Previous studies have shown that, among other plant hormones, auxin plays a role in this process but the specific involvement of Aux/IAAs, the key regulators of auxin responses, is still unknown. In this study, we addressed the role of the tomato Sl-IAA27 during AM symbiosis by using Sl-IAA27-RNAi and pSL-IAA27::GUS stable tomato lines. The data show that Sl-IAA27 expression is up-regulated by the AM fungus and that silencing of Sl-IAA27 has a negative impact on AM colonization. Sl-IAA27-silencing resulted in down-regulation of three genes involved in strigolactone synthesis, NSP1, D27 and MAX1, and treatment of Sl-IAA27-silenced plants with the strigolactone analog GR24 complemented their mycorrhizal defect phenotype. Overall, the study identified an Aux/IAA gene as a new component of the signaling pathway controlling AM fungal colonization in tomato. This gene is proposed to control strigolactone biosynthesis via the regulation of NSP1.
Collapse
Affiliation(s)
- Bruno Guillotin
- Laboratoire de Recherche en Sciences Végétales, Université de Toulouse, UMR5546, CNRS, UPS, F-31326, Castanet-Tolosan, France
| | - Mohammad Etemadi
- Laboratoire de Recherche en Sciences Végétales, Université de Toulouse, UMR5546, CNRS, UPS, F-31326, Castanet-Tolosan, France
- Génomique et Biotechnologie des Fruits, Université de Toulouse, INRA, INP-ENSA Toulouse, Avenue de l'Agrobiopole BP 32607, F-31326, Castanet-Tolosan, France
| | - Corinne Audran
- Génomique et Biotechnologie des Fruits, Université de Toulouse, INRA, INP-ENSA Toulouse, Avenue de l'Agrobiopole BP 32607, F-31326, Castanet-Tolosan, France
- Laboratoire des Interactions Plantes-Microorganismes (LIPM), INRA, UMR441, F-31326, Castanet-Tolosan, France
| | - Mondher Bouzayen
- Génomique et Biotechnologie des Fruits, Université de Toulouse, INRA, INP-ENSA Toulouse, Avenue de l'Agrobiopole BP 32607, F-31326, Castanet-Tolosan, France
| | - Guillaume Bécard
- Laboratoire de Recherche en Sciences Végétales, Université de Toulouse, UMR5546, CNRS, UPS, F-31326, Castanet-Tolosan, France
| | - Jean-Philippe Combier
- Laboratoire de Recherche en Sciences Végétales, Université de Toulouse, UMR5546, CNRS, UPS, F-31326, Castanet-Tolosan, France
| |
Collapse
|
48
|
Guo J, Cao K, Li Y, Yao JL, Deng C, Wang Q, Zhu G, Fang W, Chen C, Wang X, Guan L, Ding T, Wang L. Comparative Transcriptome and Microscopy Analyses Provide Insights into Flat Shape Formation in Peach ( Prunus persica). FRONTIERS IN PLANT SCIENCE 2017; 8:2215. [PMID: 29354151 PMCID: PMC5758543 DOI: 10.3389/fpls.2017.02215] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/06/2017] [Accepted: 12/18/2017] [Indexed: 05/21/2023]
Abstract
Fruit shape is an important external characteristic that consumers use to select preferred fruit cultivars. In peach, the flat fruit cultivars have become more and more popular worldwide. Genetic markers closely linking to the flat fruit trait have been identified and are useful for marker-assisted breeding. However, the cellular and genetic mechanisms underpinning flat fruit formation are still poorly understood. In this study, we have revealed the differences in fruit cell number, cell size, and in gene expression pattern between the traditional round fruit and modern flat fruit cultivars. Flat peach cultivars possessed significantly lower number of cells in the vertical axis because cell division in the vertical direction stopped early in the flat fruit cultivars at 15 DAFB (day after full bloom) than in round fruit cultivars at 35 DAFB. This resulted in the reduction in vertical development in the flat fruit. Significant linear relationship was observed between fruit vertical diameter and cell number in vertical axis for the four examined peach cultivars (R2 = 0.9964) at maturation stage, and was also observed between fruit vertical diameter and fruit weight (R2 = 0.9605), which indicated that cell number in vertical direction contributed to the flat shape formation. Furthermore, in RNA-seq analysis, 4165 differentially expressed genes (DEGs) were detected by comparing RNA-seq data between flat and round peach cultivars at different fruit development stages. In contrast to previous studies, we discovered 28 candidate genes potentially responsible for the flat shape formation, including 19 located in the mapping site and 9 downstream genes. Our study indicates that flat and round fruit shape in peach is primarily determined by the regulation of cell production in the vertical direction during early fruit development.
Collapse
Affiliation(s)
- Jian Guo
- The Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (Fruit Tree Breeding Technology), Ministry of Agriculture, Zhengzhou Fruit Research Institute, Chinese Academy of Agricultural Sciences, Zhengzhou, China
| | - Ke Cao
- The Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (Fruit Tree Breeding Technology), Ministry of Agriculture, Zhengzhou Fruit Research Institute, Chinese Academy of Agricultural Sciences, Zhengzhou, China
| | - Yong Li
- The Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (Fruit Tree Breeding Technology), Ministry of Agriculture, Zhengzhou Fruit Research Institute, Chinese Academy of Agricultural Sciences, Zhengzhou, China
| | - Jia-Long Yao
- The New Zealand Institute for Plant & Food Research Limited, Auckland, New Zealand
| | - Cecilia Deng
- The New Zealand Institute for Plant & Food Research Limited, Auckland, New Zealand
| | - Qi Wang
- The Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (Fruit Tree Breeding Technology), Ministry of Agriculture, Zhengzhou Fruit Research Institute, Chinese Academy of Agricultural Sciences, Zhengzhou, China
| | - Gengrui Zhu
- The Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (Fruit Tree Breeding Technology), Ministry of Agriculture, Zhengzhou Fruit Research Institute, Chinese Academy of Agricultural Sciences, Zhengzhou, China
| | - Weichao Fang
- The Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (Fruit Tree Breeding Technology), Ministry of Agriculture, Zhengzhou Fruit Research Institute, Chinese Academy of Agricultural Sciences, Zhengzhou, China
| | - Changwen Chen
- The Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (Fruit Tree Breeding Technology), Ministry of Agriculture, Zhengzhou Fruit Research Institute, Chinese Academy of Agricultural Sciences, Zhengzhou, China
| | - Xinwei Wang
- The Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (Fruit Tree Breeding Technology), Ministry of Agriculture, Zhengzhou Fruit Research Institute, Chinese Academy of Agricultural Sciences, Zhengzhou, China
| | - Liping Guan
- The Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (Fruit Tree Breeding Technology), Ministry of Agriculture, Zhengzhou Fruit Research Institute, Chinese Academy of Agricultural Sciences, Zhengzhou, China
| | - Tiyu Ding
- The Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (Fruit Tree Breeding Technology), Ministry of Agriculture, Zhengzhou Fruit Research Institute, Chinese Academy of Agricultural Sciences, Zhengzhou, China
| | - Lirong Wang
- The Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (Fruit Tree Breeding Technology), Ministry of Agriculture, Zhengzhou Fruit Research Institute, Chinese Academy of Agricultural Sciences, Zhengzhou, China
- *Correspondence: Lirong Wang,
| |
Collapse
|
49
|
Qi X, Liu C, Song L, Li Y, Li M. PaCYP78A9, a Cytochrome P450, Regulates Fruit Size in Sweet Cherry ( Prunus avium L.). FRONTIERS IN PLANT SCIENCE 2017; 8:2076. [PMID: 29259616 PMCID: PMC5723407 DOI: 10.3389/fpls.2017.02076] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/17/2017] [Accepted: 11/20/2017] [Indexed: 05/21/2023]
Abstract
Sweet cherry (Prunus avium L.) is an important fruit crop in which fruit size is strongly associated with commercial value; few genes associated with fruit size have, however, been identified in sweet cherry. Members of the CYP78A subfamily, a group of important cytochrome P450s, have been found to be involved in controlling seed size and development in Arabidopsis thaliana, rice, soybean, and tomato. However, the influence of CYP78A members in controlling organ size and the underlying molecular mechanisms in sweet cherry and other fruit trees remains unclear. Here, we characterized a P. avium CYP78A gene PaCYP78A9 that is thought to be involved in the regulation of fruit size and organ development using overexpression and silencing approaches. PaCYP78A9 was significantly expressed in the flowers and fruit of sweet cherry. RNAi silencing of PaCYP78A9 produced small cherry fruits and PaCYP78A9 was found to affect fruit size by mediating mesocarp cell proliferation and expansion during fruit growth and development. Overexpression of PaCYP78A9 in Arabidopsis resulted in increased silique and seed size and PaCYP78A9 was found to be highly expressed in the inflorescences and siliques of transgenic plants. Genes related to cell cycling and proliferation were downregulated in fruit from sweet cherry TRV::PaCYP78A9-silencing lines, suggesting that PaCYP78A9 is likely to be an important upstream regulator of cell cycle processes. Together, our findings indicate that PaCYP78A9 plays an essential role in the regulation of cherry fruit size and provide insights into the molecular basis of the mechanisms regulating traits such as fruit size in P. avium.
Collapse
|
50
|
Yu H, Soler M, San Clemente H, Mila I, Paiva JAP, Myburg AA, Bouzayen M, Grima-Pettenati J, Cassan-Wang H. Comprehensive genome-wide analysis of the Aux/IAA gene family in Eucalyptus: evidence for the role of EgrIAA4 in wood formation. PLANT & CELL PHYSIOLOGY 2015; 56:700-14. [PMID: 25577568 DOI: 10.1093/pcp/pcu215] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2014] [Accepted: 12/23/2014] [Indexed: 05/23/2023]
Abstract
Auxin plays a pivotal role in various plant growth and development processes, including vascular differentiation. The modulation of auxin responsiveness through the auxin perception and signaling machinery is believed to be a major regulatory mechanism controlling cambium activity and wood formation. To gain more insights into the roles of key Aux/IAA gene regulators of the auxin response in these processes, we identified and characterized members of the Aux/IAA family in the genome of Eucalyptus grandis, a tree of worldwide economic importance. We found that the gene family in Eucalyptus is slightly smaller than that in Populus and Arabidopsis, but all phylogenetic groups are represented. High-throughput expression profiling of different organs and tissues highlighted several Aux/IAA genes expressed in vascular cambium and/or developing xylem, some showing differential expression in response to developmental (juvenile vs. mature) and/or to environmental (tension stress) cues. Based on the expression profiles, we selected a promising candidate gene, EgrIAA4, for functional characterization. We showed that EgrIAA4 protein is localized in the nucleus and functions as an auxin-responsive repressor. Overexpressing a stabilized version of EgrIAA4 in Arabidopsis dramatically impeded plant growth and fertility and induced auxin-insensitive phenotypes such as inhibition of primary root elongation, lateral root emergence and agravitropism. Interestingly, the lignified secondary walls of the interfascicular fibers appeared very late, whereas those of the xylary fibers were virtually undetectable, suggesting that EgrIAA4 may play crucial roles in fiber development and secondary cell wall deposition.
Collapse
Affiliation(s)
- Hong Yu
- LRSV Laboratoire de Recherche en Sciences Végétales, UMR5546, Université Toulouse III, UPS, CNRS, BP 42617, Auzeville, F-31326 Castanet Tolosan, France
| | - Marçal Soler
- LRSV Laboratoire de Recherche en Sciences Végétales, UMR5546, Université Toulouse III, UPS, CNRS, BP 42617, Auzeville, F-31326 Castanet Tolosan, France
| | - Hélène San Clemente
- LRSV Laboratoire de Recherche en Sciences Végétales, UMR5546, Université Toulouse III, UPS, CNRS, BP 42617, Auzeville, F-31326 Castanet Tolosan, France
| | - Isabelle Mila
- Université de Toulouse, INP-ENSA Toulouse, Génomique et Biotechnologie des Fruits, Avenue de l'Agrobiopole BP 32607, F-31326 Castanet-Tolosan, France INRA, UMR990 Génomique et Biotechnologie des Fruits, Chemin de Borde Rouge, F-31326 Castanet-Tolosan, France
| | - Jorge A P Paiva
- Instituto de Investigação Científica e Tropical (IICT/MNE), Palácio Burnay, Rua da Junqueira, 30, 1349-007 Lisboa, Portugal IBET - Instituto de Biologia Experimental e Tecnológica, Apartado 12, 2781-901 Oeiras, Portugal
| | - Alexander A Myburg
- Department of Genetics, Forestry and Agricultural Biotechnology Institute (FABI), Genomics Research Institute (GRI), University of Pretoria, Private Bag X20, Pretoria, 0028, South Africa
| | - Mondher Bouzayen
- Université de Toulouse, INP-ENSA Toulouse, Génomique et Biotechnologie des Fruits, Avenue de l'Agrobiopole BP 32607, F-31326 Castanet-Tolosan, France INRA, UMR990 Génomique et Biotechnologie des Fruits, Chemin de Borde Rouge, F-31326 Castanet-Tolosan, France
| | - Jacqueline Grima-Pettenati
- LRSV Laboratoire de Recherche en Sciences Végétales, UMR5546, Université Toulouse III, UPS, CNRS, BP 42617, Auzeville, F-31326 Castanet Tolosan, France
| | - Hua Cassan-Wang
- LRSV Laboratoire de Recherche en Sciences Végétales, UMR5546, Université Toulouse III, UPS, CNRS, BP 42617, Auzeville, F-31326 Castanet Tolosan, France
| |
Collapse
|