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Wang L, Zhang T, Li C, Zhou C, Liu B, Wu Y, He F, Xu Y, Li F, Feng X. Overexpression of Wild Soybean Expansin Gene GsEXLB14 Enhanced the Tolerance of Transgenic Soybean Hairy Roots to Salt and Drought Stresses. PLANTS (BASEL, SWITZERLAND) 2024; 13:1656. [PMID: 38931088 PMCID: PMC11207530 DOI: 10.3390/plants13121656] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/06/2024] [Revised: 05/30/2024] [Accepted: 06/12/2024] [Indexed: 06/28/2024]
Abstract
As a type of cell-wall-relaxing protein that is widely present in plants, expansins have been shown to actively participate in the regulation of plant growth and responses to environmental stress. Wild soybeans have long existed in the wild environment and possess abundant resistance gene resources, which hold significant value for the improvement of cultivated soybean germplasm. In our previous study, we found that the wild soybean expansin gene GsEXLB14 is specifically transcribed in roots, and its transcription level significantly increases under salt and drought stress. To further identify the function of GsEXLB14, in this study, we cloned the CDS sequence of this gene. The transcription pattern of GsEXLB14 in the roots of wild soybean under salt and drought stress was analyzed by qRT-PCR. Using an Agrobacterium rhizogenes-mediated genetic transformation, we obtained soybean hairy roots overexpressing GsEXLB14. Under 150 mM NaCl- and 100 mM mannitol-simulated drought stress, the relative growth values of the number, length, and weight of transgenic soybean hairy roots were significantly higher than those of the control group. We obtained the transcriptomes of transgenic and wild-type soybean hairy roots under normal growth conditions and under salt and drought stress through RNA sequencing. A transcriptomic analysis showed that the transcription of genes encoding expansins (EXPB family), peroxidase, H+-transporting ATPase, and other genes was significantly upregulated in transgenic hairy roots under salt stress. Under drought stress, the transcription of expansin (EXPB/LB family) genes increased in transgenic hairy roots. In addition, the transcription of genes encoding peroxidases, calcium/calmodulin-dependent protein kinases, and dehydration-responsive proteins increased significantly. The results of qRT-PCR also confirmed that the transcription pattern of the above genes was consistent with the transcriptome. The differences in the transcript levels of the above genes may be the potential reason for the strong tolerance of soybean hairy roots overexpressing the GsEXLB14 gene under salt and drought stress. In conclusion, the expansin GsEXLB14 can be used as a valuable candidate gene for the molecular breeding of soybeans.
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Affiliation(s)
- Linlin Wang
- College of Life Sciences, Northeast Agricultural University, Harbin 150030, China; (L.W.); (T.Z.); (C.L.); (F.H.); (Y.X.)
| | - Tong Zhang
- College of Life Sciences, Northeast Agricultural University, Harbin 150030, China; (L.W.); (T.Z.); (C.L.); (F.H.); (Y.X.)
| | - Cuiting Li
- College of Life Sciences, Northeast Agricultural University, Harbin 150030, China; (L.W.); (T.Z.); (C.L.); (F.H.); (Y.X.)
| | - Changjun Zhou
- Daqing Branch of Heilongjiang Academy of Agricultural Sciences, Daqing 163316, China; (C.Z.); (B.L.); (Y.W.)
| | - Bing Liu
- Daqing Branch of Heilongjiang Academy of Agricultural Sciences, Daqing 163316, China; (C.Z.); (B.L.); (Y.W.)
| | - Yaokun Wu
- Daqing Branch of Heilongjiang Academy of Agricultural Sciences, Daqing 163316, China; (C.Z.); (B.L.); (Y.W.)
| | - Fumeng He
- College of Life Sciences, Northeast Agricultural University, Harbin 150030, China; (L.W.); (T.Z.); (C.L.); (F.H.); (Y.X.)
| | - Yongqing Xu
- College of Life Sciences, Northeast Agricultural University, Harbin 150030, China; (L.W.); (T.Z.); (C.L.); (F.H.); (Y.X.)
| | - Fenglan Li
- College of Life Sciences, Northeast Agricultural University, Harbin 150030, China; (L.W.); (T.Z.); (C.L.); (F.H.); (Y.X.)
| | - Xu Feng
- College of Life Sciences, Northeast Agricultural University, Harbin 150030, China; (L.W.); (T.Z.); (C.L.); (F.H.); (Y.X.)
- College of Agriculture, Northeast Agricultural University, Harbin 150030, China
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Li J, Liu L, Wang L, Rao IM, Wang Z, Chen Z. AcEXPA1, an α-expansin gene, participates in the aluminum tolerance of carpetgrass (Axonopus compressus) through root growth regulation. PLANT CELL REPORTS 2024; 43:159. [PMID: 38822842 DOI: 10.1007/s00299-024-03243-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/24/2024] [Accepted: 05/19/2024] [Indexed: 06/03/2024]
Abstract
KEY MESSAGE AcEXPA1, an aluminum (Al)-inducible expansin gene, is demonstrated to be involved in carpetgrass (Axonopus compressus) root elongation under Al toxicity through analyzing composite carpetgrass plants overexpressing AcEXPA1. Aluminum (Al) toxicity is a major mineral toxicity that limits plant productivity in acidic soils by inhibiting root growth. Carpetgrass (Axonopus compressus), a dominant warm-season turfgrass widely grown in acidic tropical soils, exhibits superior adaptability to Al toxicity. However, the mechanisms underlying its Al tolerance are largely unclear, and knowledge of the functional genes involved in Al detoxification in this turfgrass is limited. In this study, phenotypic variation in Al tolerance, as indicated by relative root elongation, was observed among seventeen carpetgrass genotypes. Al-responsive genes related to cell wall modification were identified in the roots of the Al-tolerant genotype 'A58' via transcriptome analysis. Among them, a gene encoding α-expansin was cloned and designated AcEXPA1 for functional characterization. Observed Al dose effects and temporal responses revealed that Al induced AcEXPA1 expression in carpetgrass roots. Subsequently, an efficient and convenient Agrobacterium rhizogenes-mediated transformation method was established to generate composite carpetgrass plants with transgenic hairy roots for investigating AcEXPA1 involvement in carpetgrass root growth under Al toxicity. AcEXPA1 was successfully overexpressed in the transgenic hairy roots, and AcEXPA1 overexpression enhanced Al tolerance in composite carpetgrass plants through a decrease in Al-induced root growth inhibition. Taken together, these findings suggest that AcEXPA1 contributes to Al tolerance in carpetgrass via root growth regulation.
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Affiliation(s)
- Jifu Li
- Key Laboratory of Crop Gene Resources and Germplasm Enhancement in Southern China, Ministry of Agriculture and Rual Affairs/Tropical Crops Genetic Resources Institute, Chinese Academy of Tropical Agricultural Sciences, Haikou, 571101, People's Republic of China
- National Key Laboratory for Tropical Crop Breeding, Sanya, 572024, People's Republic of China
| | - Liting Liu
- College of Tropical Agriculture and Forestry, Sanya Nanfan Research Institute, Hainan University, 58 Renmin Avenue, Haikou, 570228, People's Republic of China
| | - Linjie Wang
- Key Laboratory of Crop Gene Resources and Germplasm Enhancement in Southern China, Ministry of Agriculture and Rual Affairs/Tropical Crops Genetic Resources Institute, Chinese Academy of Tropical Agricultural Sciences, Haikou, 571101, People's Republic of China
| | - Idupulapati M Rao
- The Alliance of Bioversity International and the International Center for Tropical Agriculture (CIAT), 763537, Cali, Colombia
| | - Zhiyong Wang
- College of Tropical Agriculture and Forestry, Sanya Nanfan Research Institute, Hainan University, 58 Renmin Avenue, Haikou, 570228, People's Republic of China.
| | - Zhijian Chen
- Key Laboratory of Crop Gene Resources and Germplasm Enhancement in Southern China, Ministry of Agriculture and Rual Affairs/Tropical Crops Genetic Resources Institute, Chinese Academy of Tropical Agricultural Sciences, Haikou, 571101, People's Republic of China.
- National Key Laboratory for Tropical Crop Breeding, Sanya, 572024, People's Republic of China.
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Li Y, Zhang Y, Cui J, Wang X, Li M, Zhang L, Kang J. Genome-Wide Identification, Phylogenetic and Expression Analysis of Expansin Gene Family in Medicago sativa L. Int J Mol Sci 2024; 25:4700. [PMID: 38731920 PMCID: PMC11083626 DOI: 10.3390/ijms25094700] [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: 03/11/2024] [Revised: 04/19/2024] [Accepted: 04/22/2024] [Indexed: 05/13/2024] Open
Abstract
Expansins, a class of cell-wall-loosening proteins that regulate plant growth and stress resistance, have been studied in a variety of plant species. However, little is known about the Expansins present in alfalfa (Medicago sativa L.) due to the complexity of its tetraploidy. Based on the alfalfa (cultivar "XinjiangDaye") reference genome, we identified 168 Expansin members (MsEXPs). Phylogenetic analysis showed that MsEXPs consist of four subfamilies: MsEXPAs (123), MsEXPBs (25), MsEXLAs (2), and MsEXLBs (18). MsEXPAs, which account for 73.2% of MsEXPs, and are divided into twelve groups (EXPA-I-EXPA-XII). Of these, EXPA-XI members are specific to Medicago trunctula and alfalfa. Gene composition analysis revealed that the members of each individual subfamily shared a similar structure. Interestingly, about 56.3% of the cis-acting elements were predicted to be associated with abiotic stress, and the majority were MYB- and MYC-binding motifs, accounting for 33.9% and 36.0%, respectively. Our short-term treatment (≤24 h) with NaCl (200 mM) or PEG (polyethylene glycol, 15%) showed that the transcriptional levels of 12 MsEXPs in seedlings were significantly altered at the tested time point(s), indicating that MsEXPs are osmotic-responsive. These findings imply the potential functions of MsEXPs in alfalfa adaptation to high salinity and/or drought. Future studies on MsEXP expression profiles under long-term (>24 h) stress treatment would provide valuable information on their involvement in the response of alfalfa to abiotic stress.
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Affiliation(s)
- Yajing Li
- Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, China; (Y.L.); (Y.Z.); (J.C.); (X.W.); (M.L.); (L.Z.)
| | - Yangyang Zhang
- Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, China; (Y.L.); (Y.Z.); (J.C.); (X.W.); (M.L.); (L.Z.)
- College of Grassland Agriculture, Northwest A&F University, Yangling 712100, China
| | - Jing Cui
- Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, China; (Y.L.); (Y.Z.); (J.C.); (X.W.); (M.L.); (L.Z.)
| | - Xue Wang
- Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, China; (Y.L.); (Y.Z.); (J.C.); (X.W.); (M.L.); (L.Z.)
| | - Mingna Li
- Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, China; (Y.L.); (Y.Z.); (J.C.); (X.W.); (M.L.); (L.Z.)
| | - Lili Zhang
- Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, China; (Y.L.); (Y.Z.); (J.C.); (X.W.); (M.L.); (L.Z.)
| | - Junmei Kang
- Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, China; (Y.L.); (Y.Z.); (J.C.); (X.W.); (M.L.); (L.Z.)
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Chen H, Li Y, Yin Y, Li J, Li L, Wu K, Fang L, Zeng S. Gibberellic Acid Inhibits Dendrobium nobile- Piriformospora Symbiosis by Regulating the Expression of Cell Wall Metabolism Genes. Biomolecules 2023; 13:1649. [PMID: 38002331 PMCID: PMC10669577 DOI: 10.3390/biom13111649] [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: 08/30/2023] [Revised: 10/26/2023] [Accepted: 11/06/2023] [Indexed: 11/26/2023] Open
Abstract
Orchid seeds lack endosperms and depend on mycorrhizal fungi for germination and nutrition acquisition under natural conditions. Piriformospora indica is a mycorrhizal fungus that promotes seed germination and seedling development in epiphytic orchids, such as Dendrobium nobile. To understand the impact of P. indica on D. nobile seed germination, we examined endogenous hormone levels by using liquid chromatography-mass spectrometry. We performed transcriptomic analysis of D. nobile protocorm at two developmental stages under asymbiotic germination (AG) and symbiotic germination (SG) conditions. The result showed that the level of endogenous IAA in the SG protocorm treatments was significantly higher than that in the AG protocorm treatments. Meanwhile, GA3 was only detected in the SG protocorm stages. IAA and GA synthesis and signaling genes were upregulated in the SG protocorm stages. Exogenous GA3 application inhibited fungal colonization inside the protocorm, and a GA biosynthesis inhibitor (PAC) promoted fungal colonization. Furthermore, we found that PAC prevented fungal hyphae collapse and degeneration in the protocorm, and differentially expressed genes related to cell wall metabolism were identified between the SG and AG protocorm stages. Exogenous GA3 upregulated SRC2 and LRX4 expression, leading to decreased fungal colonization. Meanwhile, GA inhibitors upregulated EXP6, EXB16, and EXP10-2 expression, leading to increased fungal colonization. Our findings suggest that GA regulates the expression of cell wall metabolism genes in D. nobile, thereby inhibiting the establishment of mycorrhizal symbiosis.
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Affiliation(s)
- Hong Chen
- Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, China (Y.L.); (Y.Y.); (J.L.); (L.L.); (K.W.)
- Department of Botany, Guangzhou Institute of Forestry and Landscape Architecture, Huangzhuang South Road 6, Baiyun District, Guangzhou 510540, China
| | - Yefei Li
- Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, China (Y.L.); (Y.Y.); (J.L.); (L.L.); (K.W.)
- University of the Chinese Academy of Sciences, Beijing 100049, China
| | - Yuying Yin
- Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, China (Y.L.); (Y.Y.); (J.L.); (L.L.); (K.W.)
- University of the Chinese Academy of Sciences, Beijing 100049, China
| | - Ji Li
- Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, China (Y.L.); (Y.Y.); (J.L.); (L.L.); (K.W.)
- Department of Botany, Guangzhou Institute of Forestry and Landscape Architecture, Huangzhuang South Road 6, Baiyun District, Guangzhou 510540, China
| | - Lin Li
- Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, China (Y.L.); (Y.Y.); (J.L.); (L.L.); (K.W.)
| | - Kunlin Wu
- Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, China (Y.L.); (Y.Y.); (J.L.); (L.L.); (K.W.)
| | - Lin Fang
- Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, China (Y.L.); (Y.Y.); (J.L.); (L.L.); (K.W.)
- Key Laboratory of South China Agricultural Plant Molecular Analysis and Gene Improvement, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, China
| | - Songjun Zeng
- Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, China (Y.L.); (Y.Y.); (J.L.); (L.L.); (K.W.)
- Key Laboratory of South China Agricultural Plant Molecular Analysis and Gene Improvement, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, China
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Wang L, Wang W, Miao Y, Peters M, Schultze-Kraft R, Liu G, Chen Z. Development of transgenic composite Stylosanthes plants to study root growth regulated by a β-expansin gene, SgEXPB1, under phosphorus deficiency. PLANT CELL REPORTS 2023; 42:575-585. [PMID: 36624204 DOI: 10.1007/s00299-023-02978-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/12/2022] [Accepted: 01/03/2023] [Indexed: 06/17/2023]
Abstract
A highly efficient transformation procedure to generate transgenic Stylosanthes roots was established. SgEXPB1 is involved in Stylosanthes root growth under phosphorus deficiency. Stylo (Stylosanthes spp.) is an important forage legume widely applied in agricultural systems in the tropics. Due to the recalcitrance of stylo genetic transformation, functional characterization of candidate genes involved in stylo root growth is limited. This study established an efficient procedure for Agrobacterium rhizogenes-mediated transformation for generating transgenic composite plants of S. guianensis cultivar 'Reyan No. 5'. Results showed that composite stylo plants with transgenic hairy roots were efficiently generated by A. rhizogenes strains K599 and Arqual, infecting the residual hypocotyl at 1.0 cm of length below the cotyledon leaves of 9-d-old seedlings, leading to a high transformation efficiency of > 95% based on histochemical β-glucuronidase (GUS) staining. Notably, 100% of GUS staining-positive hairy roots can be achieved per composite stylo plant. Subsequently, SgEXPB1, a β-expansin gene up-regulated by phosphorus (P) deficiency in stylo roots, was successfully overexpressed in hairy roots. Analysis of hairy roots showed that root growth and P concentration in the transgenic composite plants were increased by SgEXPB1 overexpression under low-P treatment. Taken together, a highly efficient A. rhizogenes-mediated transformation procedure for generating composite stylo plants was established to study the function of SgEXPB1, revealing that this gene is involved in stylo root growth during P deficiency.
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Affiliation(s)
- Linjie Wang
- Key Laboratory of Tropical Crops Germplasm Resources Genetic Improvement and Innovation of Hainan Province, Institute of Tropical Crop Genetic Resources, Chinese Academy of Tropical Agricultural Sciences, Haikou, 571101, China
- College of Tropical Crops, Hainan University, Haikou, 570110, China
| | - Wenqiang Wang
- Key Laboratory of Tropical Crops Germplasm Resources Genetic Improvement and Innovation of Hainan Province, Institute of Tropical Crop Genetic Resources, Chinese Academy of Tropical Agricultural Sciences, Haikou, 571101, China
| | - Ye Miao
- College of Tropical Crops, Hainan University, Haikou, 570110, China
| | - Michael Peters
- Alliance of Bioversity International and International Center for Tropical Agriculture, Cali, 763537, Colombia
| | - Rainer Schultze-Kraft
- Alliance of Bioversity International and International Center for Tropical Agriculture, Cali, 763537, Colombia
| | - Guodao Liu
- Key Laboratory of Tropical Crops Germplasm Resources Genetic Improvement and Innovation of Hainan Province, Institute of Tropical Crop Genetic Resources, Chinese Academy of Tropical Agricultural Sciences, Haikou, 571101, China
| | - Zhijian Chen
- Key Laboratory of Tropical Crops Germplasm Resources Genetic Improvement and Innovation of Hainan Province, Institute of Tropical Crop Genetic Resources, Chinese Academy of Tropical Agricultural Sciences, Haikou, 571101, China.
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Basso MF, Lourenço-Tessutti IT, Moreira-Pinto CE, Mendes RAG, Pereira DG, Grandis A, Macedo LLP, Macedo AF, Gomes ACMM, Arraes FBM, Togawa RC, do Carmo Costa MM, Marcelino-Guimaraes FC, Silva MCM, Floh EIS, Buckeridge MS, de Almeida Engler J, Grossi-de-Sa MF. Overexpression of the GmEXPA1 gene reduces plant susceptibility to Meloidogyne incognita. PLANT CELL REPORTS 2023; 42:137-152. [PMID: 36348064 DOI: 10.1007/s00299-022-02941-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/06/2022] [Accepted: 10/17/2022] [Indexed: 06/16/2023]
Abstract
The overexpression of the soybean GmEXPA1 gene reduces plant susceptibility to M. incognita by the increase of root lignification. Plant expansins are enzymes that act in a pH-dependent manner in the plant cell wall loosening and are associated with improved tolerance or resistance to abiotic or biotic stresses. Plant-parasitic nematodes (PPN) can alter the expression profile of several expansin genes in infected root cells. Studies have shown that overexpression or downregulation of particular expansin genes can reduce plant susceptibility to PPNs. Root-knot nematodes (RKN) are obligate sedentary endoparasites of the genus Meloidogyne spp. of which M. incognita is one of the most reported species. Herein, using a transcriptome dataset and real-time PCR assays were identified an expansin A gene (GmEXPA1; Glyma.02G109100) that is upregulated in the soybean nematode-resistant genotype PI595099 compared to the susceptible cultivar BRS133 during plant parasitism by M. incognita. To understand the role of the GmEXPA1 gene during the interaction between soybean plant and M. incognita were generated stable A. thaliana and N. tabacum transgenic lines. Remarkably, both A. thaliana and N. tabacum transgenic lines overexpressing the GmEXPA1 gene showed reduced susceptibility to M. incognita. Furthermore, plant growth, biomass accumulation, and seed yield were not affected in these transgenic lines. Interestingly, significant upregulation of the NtACC oxidase and NtEFE26 genes, involved in ethylene biosynthesis, and NtCCR and Nt4CL genes, involved in lignin biosynthesis, was observed in roots of the N. tabacum transgenic lines, which also showed higher lignin content. These data suggested a possible link between GmEXPA1 gene expression and increased lignification of the root cell wall. Therefore, these data support that engineering of the GmEXPA1 gene in soybean offers a powerful biotechnology tool to assist in RKN management.
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Affiliation(s)
- Marcos Fernando Basso
- Embrapa Genetic Resources and Biotechnology, PqEB Final, W5 Norte, PO Box 02372, Brasília, DF, 70770-901, Brazil
- National Institute of Science and Technology, INCT Plant Stress Biotech, EMBRAPA, Brasília, DF, 70297-400, Brazil
| | - Isabela Tristan Lourenço-Tessutti
- Embrapa Genetic Resources and Biotechnology, PqEB Final, W5 Norte, PO Box 02372, Brasília, DF, 70770-901, Brazil
- National Institute of Science and Technology, INCT Plant Stress Biotech, EMBRAPA, Brasília, DF, 70297-400, Brazil
| | - Clidia Eduarda Moreira-Pinto
- Embrapa Genetic Resources and Biotechnology, PqEB Final, W5 Norte, PO Box 02372, Brasília, DF, 70770-901, Brazil
- Federal University of Brasília, Brasília, DF, 70910-900, Brazil
| | - Reneida Aparecida Godinho Mendes
- Embrapa Genetic Resources and Biotechnology, PqEB Final, W5 Norte, PO Box 02372, Brasília, DF, 70770-901, Brazil
- Federal University of Brasília, Brasília, DF, 70910-900, Brazil
| | - Debora Gonçalves Pereira
- Embrapa Genetic Resources and Biotechnology, PqEB Final, W5 Norte, PO Box 02372, Brasília, DF, 70770-901, Brazil
- Federal University of Brasília, Brasília, DF, 70910-900, Brazil
| | - Adriana Grandis
- Department of Botany, Biosciences Institute, University of São Paulo, São Paulo, SP, 05508-090, Brazil
| | - Leonardo Lima Pepino Macedo
- Embrapa Genetic Resources and Biotechnology, PqEB Final, W5 Norte, PO Box 02372, Brasília, DF, 70770-901, Brazil
- National Institute of Science and Technology, INCT Plant Stress Biotech, EMBRAPA, Brasília, DF, 70297-400, Brazil
| | - Amanda Ferreira Macedo
- Department of Botany, Biosciences Institute, University of São Paulo, São Paulo, SP, 05508-090, Brazil
| | | | - Fabrício Barbosa Monteiro Arraes
- Embrapa Genetic Resources and Biotechnology, PqEB Final, W5 Norte, PO Box 02372, Brasília, DF, 70770-901, Brazil
- National Institute of Science and Technology, INCT Plant Stress Biotech, EMBRAPA, Brasília, DF, 70297-400, Brazil
| | - Roberto Coiti Togawa
- Embrapa Genetic Resources and Biotechnology, PqEB Final, W5 Norte, PO Box 02372, Brasília, DF, 70770-901, Brazil
- National Institute of Science and Technology, INCT Plant Stress Biotech, EMBRAPA, Brasília, DF, 70297-400, Brazil
| | - Marcos Mota do Carmo Costa
- Embrapa Genetic Resources and Biotechnology, PqEB Final, W5 Norte, PO Box 02372, Brasília, DF, 70770-901, Brazil
| | - Francismar Corrêa Marcelino-Guimaraes
- National Institute of Science and Technology, INCT Plant Stress Biotech, EMBRAPA, Brasília, DF, 70297-400, Brazil
- Embrapa Soybean, Londrina, PR, 86001-970, Brazil
| | - Maria Cristina Mattar Silva
- Embrapa Genetic Resources and Biotechnology, PqEB Final, W5 Norte, PO Box 02372, Brasília, DF, 70770-901, Brazil
- National Institute of Science and Technology, INCT Plant Stress Biotech, EMBRAPA, Brasília, DF, 70297-400, Brazil
| | - Eny Iochevet Segal Floh
- Department of Botany, Biosciences Institute, University of São Paulo, São Paulo, SP, 05508-090, Brazil
| | | | - Janice de Almeida Engler
- National Institute of Science and Technology, INCT Plant Stress Biotech, EMBRAPA, Brasília, DF, 70297-400, Brazil
- INRAE, Université Côte d'Azur, CNRS, ISA, 06903, Sophia Antipolis, France
| | - Maria Fatima Grossi-de-Sa
- Embrapa Genetic Resources and Biotechnology, PqEB Final, W5 Norte, PO Box 02372, Brasília, DF, 70770-901, Brazil.
- National Institute of Science and Technology, INCT Plant Stress Biotech, EMBRAPA, Brasília, DF, 70297-400, Brazil.
- Catholic University of Brasília, Brasília, DF, 71966-700, Brazil.
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Li Y, Ma W, Zhang K, Wang X, Liu R, Tian Y, Ma N, Zhao Q, Xu R, Zhong Y, Liao H. Overexpression of GmPHR1 Promotes Soybean Yield through Global Regulation of Nutrient Acquisition and Root Development. Int J Mol Sci 2022; 23:ijms232315274. [PMID: 36499599 PMCID: PMC9740814 DOI: 10.3390/ijms232315274] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2022] [Revised: 11/23/2022] [Accepted: 12/01/2022] [Indexed: 12/08/2022] Open
Abstract
MYB-CC transcription factors (TFs) are essential for plant growth and development. Members of the MYB-CC subfamily with long N terminal domains, such as phosphate starvation response 1 (PHR1) or PHR1-like TFs, have well documented functions, while those with short N terminal domains remain less understood. In this study, we identified a nodule specific MYB-CC transcription factor 1 (GmPHR1) in soybean that is different from other canonical PHR family genes in that GmPHR1 harbors a short N terminal ahead of its MYB-CC domain and was highly induced by rhizobium infection. The overexpression of GmPHR1 dramatically increased the ratio of deformed root hairs, enhanced subsequent soybean nodulation, and promoted soybean growth in pot experiments. The growth promotion effects of GmPHR1 overexpression were further demonstrated in field trails in which two GmPHR1-OE lines yielded 10.78% and 8.19% more than the wild type line. Transcriptome analysis suggested that GmPHR1 overexpression led to global reprogramming, with 749 genes upregulated and 279 genes downregulated, especially for genes involved in MYB transcription factor activities, root growth, and nutrient acquisition. Taken together, we conclude that GmPHR1 is a key gene involved in the global regulation of nodulation, root growth, and nutrient acquisition in soybeans, and is thus a promising candidate gene to target for soybean yield enhancement.
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Affiliation(s)
- Yanjun Li
- Root Biology Center, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Wenjing Ma
- Root Biology Center, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Kefei Zhang
- Root Biology Center, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Xiaoqian Wang
- Root Biology Center, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Ran Liu
- Root Biology Center, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Yingzhe Tian
- Root Biology Center, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Niannian Ma
- Root Biology Center, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Qingsong Zhao
- Root Biology Center, Fujian Agriculture and Forestry University, Fuzhou 350002, China
- Hebei Laboratory of Crop Genetics and Breeding, National Soybean Improvement Center Shijiazhuang Sub-Center, Huang-Huai-Hai Key Laboratory of Biology and Genetic Improvement of Soybean, Ministry of Agriculture and Rural Affairs, Institute of Cereal and Oil Crops, Hebei Academy of Agricultural and Forestry Sciences, Shijiazhuang 050035, China
| | - Ruineng Xu
- Root Biology Center, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Yongjia Zhong
- Root Biology Center, Fujian Agriculture and Forestry University, Fuzhou 350002, China
- Correspondence: (Y.Z.); (H.L.)
| | - Hong Liao
- Root Biology Center, Fujian Agriculture and Forestry University, Fuzhou 350002, China
- Correspondence: (Y.Z.); (H.L.)
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8
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Díaz-Silva M, Maldonado J, Veloso P, Delgado N, Silva H, Gallardo JA. RNA-Seq analysis and transcriptome assembly of Salicornia neei reveals a powerful system for ammonium detoxification. ELECTRON J BIOTECHN 2022. [DOI: 10.1016/j.ejbt.2022.05.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
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9
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Arslan B, İncili ÇY, Ulu F, Horuz E, Bayarslan AU, Öçal M, Kalyoncuoğlu E, Baloglu MC, Altunoglu YC. Comparative genomic analysis of expansin superfamily gene members in zucchini and cucumber and their expression profiles under different abiotic stresses. PHYSIOLOGY AND MOLECULAR BIOLOGY OF PLANTS : AN INTERNATIONAL JOURNAL OF FUNCTIONAL PLANT BIOLOGY 2021; 27:2739-2756. [PMID: 35035133 PMCID: PMC8720134 DOI: 10.1007/s12298-021-01108-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/03/2021] [Revised: 11/17/2021] [Accepted: 11/25/2021] [Indexed: 05/25/2023]
Abstract
UNLABELLED Zucchini and cucumber belong to the Cucurbitaceae family, a group of economical and nutritious food plants that is consumed worldwide. Expansin superfamily proteins are generally localized in the cell wall of plants and are known to possess an effect on cell wall modification by causing the expansion of this region. Although the whole genome sequences of cucumber and zucchini plants have been resolved, the determination and characterization of expansin superfamily members in these plants using whole genomic data have not been implemented yet. In the current study, a genome-wide analysis of zucchini (Cucurbita pepo) and cucumber (Cucumis sativus) genomes was performed to determine the expansin superfamily genes. In total, 49 and 41 expansin genes were identified in zucchini and cucumber genomes, respectively. All expansin superfamily members were subjected to further bioinformatics analysis including gene and protein structure, ontology of the proteins, phylogenetic relations and conserved motifs, orthologous relations with other plants, targeting miRNAs of those genes and in silico gene expression profiles. In addition, various abiotic stress responses of zucchini and cucumber expansin genes were examined to determine their roles in stress tolerance. CsEXPB-04 and CsEXPA-11 from cucumber and CpEXPA-20 and CpEXPLA-14 from zucchini can be candidate genes for abiotic stress response and tolerance in addition to their roles in the normal developmental processes, which are supported by the gene expression analysis. This work can provide new perspectives for the roles of expansin superfamily genes and offers comprehensive knowledge for future studies investigating the modes of action of expansin proteins. SUPPLEMENTARY INFORMATION The online version contains supplementary material available at 10.1007/s12298-021-01108-w.
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Affiliation(s)
- Büşra Arslan
- Department of Genetics and Bioengineering, Faculty of Engineering and Architecture, Kastamonu University, Kastamonu, Turkey
| | - Çınar Yiğit İncili
- Department of Genetics and Bioengineering, Faculty of Engineering and Architecture, Kastamonu University, Kastamonu, Turkey
| | - Ferhat Ulu
- Department of Genetics and Bioengineering, Faculty of Engineering and Architecture, Kastamonu University, Kastamonu, Turkey
| | - Erdoğan Horuz
- Department of Genetics and Bioengineering, Faculty of Engineering and Architecture, Kastamonu University, Kastamonu, Turkey
| | - Aslı Ugurlu Bayarslan
- Department of Biology, Faculty of Science and Arts, Kastamonu University, Kastamonu, Turkey
| | - Mustafa Öçal
- Department of Genetics and Bioengineering, Faculty of Engineering and Architecture, Kastamonu University, Kastamonu, Turkey
| | - Elif Kalyoncuoğlu
- Department of Genetics and Bioengineering, Faculty of Engineering and Architecture, Kastamonu University, Kastamonu, Turkey
| | - Mehmet Cengiz Baloglu
- Department of Genetics and Bioengineering, Faculty of Engineering and Architecture, Kastamonu University, Kastamonu, Turkey
| | - Yasemin Celik Altunoglu
- Department of Genetics and Bioengineering, Faculty of Engineering and Architecture, Kastamonu University, Kastamonu, Turkey
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10
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Yang Z, Zheng J, Zhou H, Chen S, Gao Z, Yang Y, Li X, Liao H. The soybean β-expansin gene GmINS1 contributes to nodule development in response to phosphate starvation. PHYSIOLOGIA PLANTARUM 2021; 172:2034-2047. [PMID: 33887063 DOI: 10.1111/ppl.13436] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/21/2021] [Accepted: 04/14/2021] [Indexed: 06/12/2023]
Abstract
Legume biological nitrogen fixation (BNF) is the most important N source in agricultural ecosystems. Nodule organogenesis from the primordia to the development of mature nodules with the ability to fix N2 largely determines BNF capacity. However, nodule growth is often limited by low phosphorus (P) availability, while the mechanisms underlying nodule development responses to P deficiency remain largely unknown. In this study, we found that nodule enlargement is severely inhibited by P deficiency, as reflected by the smaller individual nodule size from a soybean core collection in the field. Wide-ranging natural diversity in nodule size was further identified in soybeans reared in low P soils, with the FC-1 genotype outperforming FC-2 in assessments of nodulation under low P conditions. Among β-expansin members, GmINS1 expression is most abundantly enhanced by P deficiency in FC-1 nodules, and its transcript level is further displayed to be tightly associated with nodule enlargement. Four single nucleotide polymorphisms discovered in the GmINS1 promoter distinguished the FC-1 and FC-2 genotypes and accounted for the differential expression levels of GmINS1 responses to P deficiency. GmINS1 overexpression led to increases in nodule size, infected cell abundance, and N2 fixation capacity and subsequently promoted increases in N and P content, soybean biomass, and yield. Our findings provide a candidate gene for optimizing BNF capacity responses to low P stress in soybean molecular breeding programs.
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Affiliation(s)
- Zhaojun Yang
- Root Biology Center, College of Life Science, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Jiakun Zheng
- Root Biology Center, College of Life Science, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Huiwen Zhou
- Root Biology Center, College of Life Science, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Shengnan Chen
- Root Biology Center, College of Life Science, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Zhi Gao
- Root Biology Center, College of Life Science, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Yongqing Yang
- Root Biology Center, College of Life Science, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Xinxin Li
- Root Biology Center, College of Life Science, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Hong Liao
- Root Biology Center, College of Life Science, Fujian Agriculture and Forestry University, Fuzhou, China
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11
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Abbasi A, Malekpour M, Sobhanverdi S. The Arabidopsis expansin gene (AtEXPA18) is capable to ameliorate drought stress tolerance in transgenic tobacco plants. Mol Biol Rep 2021; 48:5913-5922. [PMID: 34324115 DOI: 10.1007/s11033-021-06589-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2021] [Accepted: 07/21/2021] [Indexed: 11/25/2022]
Abstract
BACKGROUND Expansins are cell wall proteins loosening plant cell in pH-dependent manner. This study aimed to investigate the role of AtEXPA18 in different morphological, physiological, and cellular responses of transgenic tobacco plants to moderate and severe drought stress. METHODS AND RESULTS Previously synthesized AtEXPA18 gene construct was successfully transferred to the tobacco plants through an agrobacterium-mediate transformation system. Upon obtaining the second generation, tobacco transgenic plants were confirmed by conventional polymerase chain reaction (PCR) technique alongside reverse transcription PCR (RT-PCR) using specific primers. Under drought stress, the transgenic lines showed remarkable growth and significantly improved based on morphological traits such as height and stem diameter, leaf area, leaf number, root dry weight, and Abscisic acid levels of leaves compared control plants. As a result, the Cytokinin content of transgenic plants has increased under severe stress levels. Notably, the area's expansion for abaxial epidermal cells under the microscope confirmed in transgene cells compared with the -transgene cells. CONCLUSION These results, altogether, could support the AtEXPA18 gene implication in cell expansion and improving tolerance capacity of transgenic crops under drought stress.
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Affiliation(s)
- Alireza Abbasi
- Department of Agronomy and Plant Breeding, Faculty of Agricultural Science and Engineering, University College of Agriculture and Natural Resources, University of Tehran, Karaj, Islamic Republic of Iran.
| | - Meysam Malekpour
- Department of Agronomy and Plant Breeding, Faculty of Agricultural Science and Engineering, University College of Agriculture and Natural Resources, University of Tehran, Karaj, Islamic Republic of Iran
| | - Sajjad Sobhanverdi
- Department of Agronomy and Plant Breeding, Faculty of Agricultural Science and Engineering, University College of Agriculture and Natural Resources, University of Tehran, Karaj, Islamic Republic of Iran
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12
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Peng L, Xu Y, Feng X, Zhang J, Dong J, Yao S, Feng Z, Zhao Q, Feng S, Li F, Hu B. Identification and Characterization of the Expansin Genes in Triticum urartu in Response to Various Phytohormones. RUSS J GENET+ 2020. [DOI: 10.1134/s1022795420040109] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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13
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Liu M, Bassetti N, Petrasch S, Zhang N, Bucher J, Shen S, Zhao J, Bonnema G. What makes turnips: anatomy, physiology and transcriptome during early stages of its hypocotyl-tuber development. HORTICULTURE RESEARCH 2019; 6:38. [PMID: 30854213 DOI: 10.1038/s41438-019-0119-115] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Received: 08/01/2018] [Revised: 12/13/2018] [Accepted: 12/13/2018] [Indexed: 05/26/2023]
Abstract
Brassica species are characterized by their tremendous intraspecific diversity, exemplified by leafy vegetables, oilseeds, and crops with enlarged inflorescences or above ground storage organs. In contrast to potato tubers that are edible storage organs storing energy as starch and are the vegetative propagation modules, the storage organs of turnips, grown from true seed, are swollen hypocotyls with varying degrees of root and stem that mainly store glucose and fructose. To highlight their anatomical origin, we use the term "hypocotyl-tuber" for these turnip vegetative storage organs. We combined cytological, physiological, genetic and transcriptomic approaches, aiming to identify the initial stages, molecular pathways and regulatory genes for hypocotyl-tuber induction in turnips (B. rapa subsp. rapa). We first studied the development of the hypocotyl zone of turnip and Pak choi and found that 16 days after sowing (DAS) morphological changes occurred in the xylem which indicated the early tuberization stage. Tissue culture experiments showed a clear effect of auxin on hypocotyl-tuber growth. Differentially expressed genes between 1 and 6 weeks after sowing in turnip hypocotyls, located in genomic regions involved in tuber initiation and/or tuber growth defined by QTL and selective sweeps for tuber formation, were identified as candidate genes that were studied in more detail for their role in hypocotyl-tuber formation. This included a Bra-FLOR1 paralogue with increased expression 16 DAS, when the hypocotyl starts swelling, suggesting dual roles for duplicated flowering time genes in flowering and hypocotyl-tuber induction. Bra-CYP735A2 was identified for its possible role in tuber growth via trans-zeatin. Weigthed Co-expression Network Analysis (WGCNA) identified 59 modules of co-expressed genes. Bra-FLOR1 and Bra-CYP735A2 were grouped in a module that included several genes involved in carbohydrate transport and metabolism, cell-wall growth, auxin regulation and secondary metabolism that serve as starting points to illuminate the transcriptional regulation of hypocotyl-tuber formation and development.
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Affiliation(s)
- Mengyang Liu
- 1Plant Breeding, Wageningen University and Research, Wageningen, the Netherlands
- 2Key Laboratory of Vegetable Germplasm Innovation and Utilization of Hebei, Collaborative Innovation Center of Vegetable Industry in Hebei, College of Horticulture, Hebei Agricultural University, Baoding, China
| | - Niccolo Bassetti
- 1Plant Breeding, Wageningen University and Research, Wageningen, the Netherlands
- 3Biosystematics Group, Wageningen University and Research, Wageningen, the Netherlands
| | - Stefan Petrasch
- 1Plant Breeding, Wageningen University and Research, Wageningen, the Netherlands
- 4Department of Plant Science, University of California, Davis, CA USA
| | - Ningwen Zhang
- 1Plant Breeding, Wageningen University and Research, Wageningen, the Netherlands
| | - Johan Bucher
- 1Plant Breeding, Wageningen University and Research, Wageningen, the Netherlands
| | - Shuxing Shen
- 2Key Laboratory of Vegetable Germplasm Innovation and Utilization of Hebei, Collaborative Innovation Center of Vegetable Industry in Hebei, College of Horticulture, Hebei Agricultural University, Baoding, China
| | - Jianjun Zhao
- 2Key Laboratory of Vegetable Germplasm Innovation and Utilization of Hebei, Collaborative Innovation Center of Vegetable Industry in Hebei, College of Horticulture, Hebei Agricultural University, Baoding, China
| | - Guusje Bonnema
- 1Plant Breeding, Wageningen University and Research, Wageningen, the Netherlands
- 2Key Laboratory of Vegetable Germplasm Innovation and Utilization of Hebei, Collaborative Innovation Center of Vegetable Industry in Hebei, College of Horticulture, Hebei Agricultural University, Baoding, China
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Liu M, Bassetti N, Petrasch S, Zhang N, Bucher J, Shen S, Zhao J, Bonnema G. What makes turnips: anatomy, physiology and transcriptome during early stages of its hypocotyl-tuber development. HORTICULTURE RESEARCH 2019; 6:38. [PMID: 30854213 PMCID: PMC6395767 DOI: 10.1038/s41438-019-0119-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/01/2018] [Revised: 12/13/2018] [Accepted: 12/13/2018] [Indexed: 05/16/2023]
Abstract
Brassica species are characterized by their tremendous intraspecific diversity, exemplified by leafy vegetables, oilseeds, and crops with enlarged inflorescences or above ground storage organs. In contrast to potato tubers that are edible storage organs storing energy as starch and are the vegetative propagation modules, the storage organs of turnips, grown from true seed, are swollen hypocotyls with varying degrees of root and stem that mainly store glucose and fructose. To highlight their anatomical origin, we use the term "hypocotyl-tuber" for these turnip vegetative storage organs. We combined cytological, physiological, genetic and transcriptomic approaches, aiming to identify the initial stages, molecular pathways and regulatory genes for hypocotyl-tuber induction in turnips (B. rapa subsp. rapa). We first studied the development of the hypocotyl zone of turnip and Pak choi and found that 16 days after sowing (DAS) morphological changes occurred in the xylem which indicated the early tuberization stage. Tissue culture experiments showed a clear effect of auxin on hypocotyl-tuber growth. Differentially expressed genes between 1 and 6 weeks after sowing in turnip hypocotyls, located in genomic regions involved in tuber initiation and/or tuber growth defined by QTL and selective sweeps for tuber formation, were identified as candidate genes that were studied in more detail for their role in hypocotyl-tuber formation. This included a Bra-FLOR1 paralogue with increased expression 16 DAS, when the hypocotyl starts swelling, suggesting dual roles for duplicated flowering time genes in flowering and hypocotyl-tuber induction. Bra-CYP735A2 was identified for its possible role in tuber growth via trans-zeatin. Weigthed Co-expression Network Analysis (WGCNA) identified 59 modules of co-expressed genes. Bra-FLOR1 and Bra-CYP735A2 were grouped in a module that included several genes involved in carbohydrate transport and metabolism, cell-wall growth, auxin regulation and secondary metabolism that serve as starting points to illuminate the transcriptional regulation of hypocotyl-tuber formation and development.
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Affiliation(s)
- Mengyang Liu
- Plant Breeding, Wageningen University and Research, Wageningen, the Netherlands
- Key Laboratory of Vegetable Germplasm Innovation and Utilization of Hebei, Collaborative Innovation Center of Vegetable Industry in Hebei, College of Horticulture, Hebei Agricultural University, Baoding, China
| | - Niccolo Bassetti
- Plant Breeding, Wageningen University and Research, Wageningen, the Netherlands
- Biosystematics Group, Wageningen University and Research, Wageningen, the Netherlands
| | - Stefan Petrasch
- Plant Breeding, Wageningen University and Research, Wageningen, the Netherlands
- Department of Plant Science, University of California, Davis, CA USA
| | - Ningwen Zhang
- Plant Breeding, Wageningen University and Research, Wageningen, the Netherlands
| | - Johan Bucher
- Plant Breeding, Wageningen University and Research, Wageningen, the Netherlands
| | - Shuxing Shen
- Key Laboratory of Vegetable Germplasm Innovation and Utilization of Hebei, Collaborative Innovation Center of Vegetable Industry in Hebei, College of Horticulture, Hebei Agricultural University, Baoding, China
| | - Jianjun Zhao
- Key Laboratory of Vegetable Germplasm Innovation and Utilization of Hebei, Collaborative Innovation Center of Vegetable Industry in Hebei, College of Horticulture, Hebei Agricultural University, Baoding, China
| | - Guusje Bonnema
- Plant Breeding, Wageningen University and Research, Wageningen, the Netherlands
- Key Laboratory of Vegetable Germplasm Innovation and Utilization of Hebei, Collaborative Innovation Center of Vegetable Industry in Hebei, College of Horticulture, Hebei Agricultural University, Baoding, China
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15
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Liu C, Zhang TZ. Functional diversifications of GhERF1 duplicate genes after the formation of allotetraploid cotton. JOURNAL OF INTEGRATIVE PLANT BIOLOGY 2019; 61:60-74. [PMID: 30578593 DOI: 10.1111/jipb.12764] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2018] [Accepted: 12/17/2018] [Indexed: 06/09/2023]
Abstract
Whole genome duplication, a prevalent force of evolution in plants, results in massive genome restructuring in different organisms. Roles of the resultant duplicated genes are poorly understood, both functionally and evolutionarily. In the present study, differentially expressed ethylene responsive factors (GhERF1s), anchored on Chr-A07 and Chr-D07, were isolated from a high-yielding cotton hybrid (XZM2) and its parents. The GhERF1 was located in the B3 subgroup of the ethylene responsive factors subfamily involved in conferring tolerance to abiotic stress. Nucleotide sequence analysis of 524 diverse accessions, together with quantitative real-time polymerase chain reaction analysis, elucidated that de-functionalization of GhERF1-7A occurred due to one base insertion following formation of the allotetraploid cotton. Our quantitative trait loci and association mapping analyses highlighted a role for GhERF1-7A in conferring high boll number per plant in modern cotton cultivars. Overexpression of GhERF1-7A in transgenic Arabidopsis resulted in a substantial increase in the number of siliques and total seed yield. Neo-functionalization of GhERF1-7A was also observed in modern cultivars rather than in races and/or landraces, further supporting its role in the development of high-yielding cotton cultivars. Both de- and neo-functionalization occurred in one of the duplicate genes, thus providing new genomic insight into the evolution of allotetraploid cotton species.
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Affiliation(s)
- Chunxiao Liu
- National Key Laboratory of Crop Genetics & Germplasm Enhancement, Cotton Research Institute, Nanjing Agricultural University, Nanjing 210095, China
| | - Tian Zhen Zhang
- National Key Laboratory of Crop Genetics & Germplasm Enhancement, Cotton Research Institute, Nanjing Agricultural University, Nanjing 210095, China
- Crop Science Institute, Agronomy Department, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou 310029, China
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16
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Kuluev B, Avalbaev A, Nikonorov Y, Ermoshin A, Yuldashev R, Akhiarova G, Shakirova F, Chemeris A. Effect of constitutive expression of Arabidopsis CLAVATA3 on cell growth and possible role of cytokinins in leaf size control in transgenic tobacco plants. JOURNAL OF PLANT PHYSIOLOGY 2018; 231:244-250. [PMID: 30317073 DOI: 10.1016/j.jplph.2018.09.011] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/25/2018] [Revised: 09/17/2018] [Accepted: 09/18/2018] [Indexed: 06/08/2023]
Abstract
We generated transgenic tobacco plants (Nicotiana tabacum L.) with overexpression of the Arabidopsis thaliana CLAVATA3 (CLV3) gene which is known to be a negative regulator of cell division. Surprisingly, most of the 35S::CLV3 transgenic plants showed no phenotypic differences with the wild type plants. However, there were considerable changes in the morphological parameters between 35S::CLV3 overexpressors and wild type plants. As expected, the number of meristematic cells in the shoot apical meristem was reduced in 35S::CLV3 plants as compared to the wild type plants. Moreover, overexpression of CLV3 exerted morphological changes not only to shoot apical meristem but also to leaves and flowers. Thus, transgenic plants were characterized by reduced number of epidermal and mesophyll cells as well as stomatal pores in mature leaves. However, there was a compensatory increase in leaf cell size of 35S::CLV3 plants that contributed to maintenance of organ size within the normal range. We observed that expression of cell expansion-promoted genes, expansin NtEXPA4 and endo-xyloglucan transferase NtEXGT, were elevated in mature leaves. In contrast, there was a decrease in the transcript level of the cell division-related AINTEGUMENTA-like (NtANTL) gene in 35S::CLV3 transgenic plants. In addition, we detected an increase in cytokinin level without any changes in the contents of IAA and ABA in 35S::CLV3 overexpressors. Interestingly, cytokinin treatment was shown to stimulate the expression of NtEXPA4 and NtEXGT genes in 35S::CLV3 transgenic plants. We propose that observed compensatory cell expansion in leaves of 35S::CLV3 transgenic plants may be due, at least in part, to a possible link between cytokinin signalling and cell expansion-related genes.
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Affiliation(s)
- Bulat Kuluev
- Institute of Biochemistry and Genetics - Subdivision of the Ufa Federal Research Centre of the Russian Academy of Sciences, 450054 Ufa, Russia.
| | - Azamat Avalbaev
- Institute of Biochemistry and Genetics - Subdivision of the Ufa Federal Research Centre of the Russian Academy of Sciences, 450054 Ufa, Russia.
| | - Yuri Nikonorov
- Institute of Biochemistry and Genetics - Subdivision of the Ufa Federal Research Centre of the Russian Academy of Sciences, 450054 Ufa, Russia
| | - Alexander Ermoshin
- Institute of Natural Sciences, Ural Federal University, 620002, Yekaterinburg, Russia
| | - Ruslan Yuldashev
- Institute of Biochemistry and Genetics - Subdivision of the Ufa Federal Research Centre of the Russian Academy of Sciences, 450054 Ufa, Russia
| | - Guzel Akhiarova
- Ufa Institute of Biology - Subdivision of the Ufa Federal Research Centre of the Russian Academy of Sciences, 450054, Ufa, Russia
| | - Farida Shakirova
- Institute of Biochemistry and Genetics - Subdivision of the Ufa Federal Research Centre of the Russian Academy of Sciences, 450054 Ufa, Russia
| | - Aleksey Chemeris
- Institute of Biochemistry and Genetics - Subdivision of the Ufa Federal Research Centre of the Russian Academy of Sciences, 450054 Ufa, Russia
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17
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Xue Y, Zhuang Q, Zhu S, Xiao B, Liang C, Liao H, Tian J. Genome Wide Transcriptome Analysis Reveals Complex Regulatory Mechanisms Underlying Phosphate Homeostasis in Soybean Nodules. Int J Mol Sci 2018; 19:E2924. [PMID: 30261621 PMCID: PMC6213598 DOI: 10.3390/ijms19102924] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2018] [Revised: 09/21/2018] [Accepted: 09/21/2018] [Indexed: 01/22/2023] Open
Abstract
Phosphorus (P) deficiency is a major limitation for legume crop production. Although overall adaptations of plant roots to P deficiency have been extensively studied, only fragmentary information is available in regard to root nodule responses to P deficiency. In this study, genome wide transcriptome analysis was conducted using RNA-seq analysis in soybean nodules grown under P-sufficient (500 μM KH₂PO₄) and P-deficient (25 μM KH₂PO₄) conditions to investigate molecular mechanisms underlying soybean (Glycine max) nodule adaptation to phosphate (Pi) starvation. Phosphorus deficiency significantly decreased soybean nodule growth and nitrogenase activity. Nodule Pi concentrations declined by 49% in response to P deficiency, but this was well below the 87% and 88% decreases observed in shoots and roots, respectively. Nodule transcript profiling revealed that a total of 2055 genes exhibited differential expression patterns between Pi sufficient and deficient conditions. A set of (differentially expressed genes) DEGs appeared to be involved in maintaining Pi homeostasis in soybean nodules, including eight Pi transporters (PTs), eight genes coding proteins containing the SYG1/PHO81/XPR1 domain (SPXs), and 16 purple acid phosphatases (PAPs). The results suggest that a complex transcriptional regulatory network participates in soybean nodule adaption to Pi starvation, most notable a Pi signaling pathway, are involved in maintaining Pi homeostasis in nodules.
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Affiliation(s)
- Yingbin Xue
- Root Biology Center, State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China.
| | - Qingli Zhuang
- Root Biology Center, State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China.
| | - Shengnan Zhu
- Root Biology Center, State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China.
| | - Bixian Xiao
- Root Biology Center, State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China.
| | - Cuiyue Liang
- Root Biology Center, State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China.
| | - Hong Liao
- Root Biology Center, Haixia Institute of Science and Technology, Fujian Agriculture and Forestry University, Fuzhou 350000, China.
| | - Jiang Tian
- Root Biology Center, State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China.
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18
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Wu W, Lin Y, Liu P, Chen Q, Tian J, Liang C. Association of extracellular dNTP utilization with a GmPAP1-like protein identified in cell wall proteomic analysis of soybean roots. JOURNAL OF EXPERIMENTAL BOTANY 2018; 69:603-617. [PMID: 29329437 PMCID: PMC5853315 DOI: 10.1093/jxb/erx441] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/03/2017] [Accepted: 12/13/2017] [Indexed: 05/20/2023]
Abstract
Plant root cell walls are dynamic systems that serve as the first plant compartment responsive to soil conditions, such as phosphorus (P) deficiency. To date, evidence for the regulation of root cell wall proteins (CWPs) by P deficiency remains sparse. In order to gain a better understanding of the roles played by CWPs in the roots of soybean (Glycine max) in adaptation to P deficiency, we conducted an iTRAQ (isobaric tag for relative and absolute quantitation) proteomic analysis. A total of 53 CWPs with differential accumulation in response to P deficiency were identified. Subsequent qRT-PCR analysis correlated the accumulation of 21 of the 27 up-regulated proteins, and eight of the 26 down-regulated proteins with corresponding gene expression patterns in response to P deficiency. One up-regulated CWP, purple acid phosphatase 1-like (GmPAP1-like), was functionally characterized. Phaseolus vulgaris transgenic hairy roots overexpressing GmPAP1-like displayed an increase in root-associated acid phosphatase activity. In addition, relative growth and P content were significantly enhanced in GmPAP1-like overexpressing lines compared to control lines when deoxy-ribonucleotide triphosphate (dNTP) was applied as the sole external P source. Taken together, the results suggest that the modulation of CWPs may regulate complex changes in the root system in response to P deficiency, and that the cell wall-localized GmPAP1-like protein is involved in extracellular dNTP utilization in soybean.
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Affiliation(s)
- Weiwei Wu
- Root Biology Center, State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, South China Agricultural University, Guangzhou, P. R. China
| | - Yan Lin
- Root Biology Center, State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, South China Agricultural University, Guangzhou, P. R. China
| | - Pandao Liu
- Root Biology Center, State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, South China Agricultural University, Guangzhou, P. R. China
- Institute of Tropical Crop Genetic Resources, Chinese Academy of Tropical Agriculture Sciences, Hainan, P. R. China
| | - Qianqian Chen
- Root Biology Center, State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, South China Agricultural University, Guangzhou, P. R. China
| | - Jiang Tian
- Root Biology Center, State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, South China Agricultural University, Guangzhou, P. R. China
| | - Cuiyue Liang
- Root Biology Center, State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, South China Agricultural University, Guangzhou, P. R. China
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Xue YB, Xiao BX, Zhu SN, Mo XH, Liang CY, Tian J, Liao H. GmPHR25, a GmPHR member up-regulated by phosphate starvation, controls phosphate homeostasis in soybean. JOURNAL OF EXPERIMENTAL BOTANY 2017; 68:4951-4967. [PMID: 28992334 PMCID: PMC5853305 DOI: 10.1093/jxb/erx292] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/09/2017] [Accepted: 07/24/2017] [Indexed: 05/22/2023]
Abstract
As an essential nutrient element, phosphorus (P) plays an important role in plant growth and development. Low P availability is a limiting factor for crop production, especially for legume crops (e.g. soybean), which require additional P to sustain nitrogen fixation through symbiotic associations with rhizobia. Although PHOSPHATE STARVATION RESPONSE 1 (PHR1) or PHR1-like is considered as a central regulator of phosphate (Pi) homeostasis in several plant species, it remains undefined in soybean. In this study, 35 GmPHR members were cloned from the soybean genome and expression patterns in soybean were assayed under nitrogen (N) and P deficiency conditions. GmPHR25, which is up-regulated in response to Pi starvation, was then overexpressed in soybean hairy roots in vitro and in vivo to investigate its functions. The results showed that overexpressing GmPHR25 increased Pi concentration in transgenic soybean hairy roots under normal conditions, accompanied with a significant decrease in hairy root growth. Furthermore, transcripts of 11 out of 14 high-affinity Pi transporter (GmPT) members as well as five other Pi starvation-responsive genes were significantly increased in soybean hairy roots with GmPHR25 overexpression. Taken together, this study suggests that GmPHR25 is a vital regulator in the P signaling network, and controls Pi homeostasis in soybean.
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Affiliation(s)
- Ying-Bin Xue
- Root Biology Center, State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, South China Agricultural University, Guangzhou, P.R. China
| | - Bi-Xian Xiao
- Root Biology Center, State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, South China Agricultural University, Guangzhou, P.R. China
| | - Sheng-Nan Zhu
- Root Biology Center, State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, South China Agricultural University, Guangzhou, P.R. China
| | - Xiao-Hui Mo
- Root Biology Center, State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, South China Agricultural University, Guangzhou, P.R. China
| | - Cui-Yue Liang
- Root Biology Center, State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, South China Agricultural University, Guangzhou, P.R. China
| | - Jiang Tian
- Root Biology Center, State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, South China Agricultural University, Guangzhou, P.R. China
| | - Hong Liao
- Root Biology Center, State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, South China Agricultural University, Guangzhou, P.R. China
- Root Biology Center, Haixia Institute of Science and Technology, Fujian Agriculture and Forestry University, Fuzhou, P.R. China
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21
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Landi S, Esposito S. Nitrate Uptake Affects Cell Wall Synthesis and Modeling. FRONTIERS IN PLANT SCIENCE 2017; 8:1376. [PMID: 28848580 PMCID: PMC5550703 DOI: 10.3389/fpls.2017.01376] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/22/2017] [Accepted: 07/24/2017] [Indexed: 05/27/2023]
Abstract
Nowadays, the relationship(s) about N assimilation and cell wall remodeling in plants remains generally unclear. Enzymes involved in cell wall synthesis/modification, and nitrogen transporters play a critical role in plant growth, differentiation, and response to external stimuli. In this review, a co-expression analysis of nitrate and ammonium transporters of Arabidopsis thaliana was performed in order to explore the functional connection of these proteins with cell-wall related enzymes. This approach highlighted a strict relationship between inorganic nitrogen transporters and cell wall formation, identifying a number of co-expressed remodeling enzymes. The enzymes involved in pectin and xyloglucan synthesis resulted particularly co-regulated together with nitrate carriers, suggesting a connection between nitrate assimilation and cell wall growth regulation. Major Facilitator Carriers, and one chloride channel, are similarly co-expressed with pectin lyase, pectinacetylesterase, and cellulose synthase. Contrarily, ammonium transporters show little or no connection with those genes involved in cell wall synthesis. Different aspects related to plant development, embryogenesis, and abiotic stress response will be discussed, given the importance in plant growth of cell wall synthesis and nitrate uptake. Intriguingly, the improvement of abiotic stress tolerance in crops concerns both these processes indicating the importance in sensing the environmental constraints and mediating a response. These evaluations could help to identify candidate genes for breeding purposes.
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Kuluev BR, Knyazev AV, Mikhaylova EV, Chemeris AV. The role of expansin genes PtrEXPA3 and PnEXPA3 in the regulation of leaf growth in poplar. RUSS J GENET+ 2017. [DOI: 10.1134/s1022795417060084] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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23
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Kuluev B, Mikhaylova E, Berezhneva Z, Nikonorov Y, Postrigan B, Kudoyarova G, Chemeris A. Expression profiles and hormonal regulation of tobacco NtEXGT gene and its involvement in abiotic stress response. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2017; 111:203-215. [PMID: 27940271 DOI: 10.1016/j.plaphy.2016.12.005] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/20/2016] [Revised: 12/02/2016] [Accepted: 12/02/2016] [Indexed: 05/21/2023]
Abstract
Despite the intensive study of xyloglucan endotransglucosylases/hydrolases, their multifaceted role in plant growth regulation in changing environmental conditions is not yet clarified. The functional role of the large number of genes encoding this group of enzymes is also still unclear. NtEXGT gene encodes one of xyloglucan endotransglucosylases/hydrolases (XTHs) of Nicotiana tabacum L. The highest level of NtEXGT gene expression was detected in young flowers and leaves near the shoot apex. Expression of the NtEXGT gene in leaves was induced by cytokinins, auxins, brassinosteroids and gibberellins. NtEXGT gene was also up-regulated by salinity, drought, cold, cadmium and 10 μM abscisic acid treatments and down-regulated in response to 0 °C and 100 μM abscisic acid. Pretreatment of leaves with fluridone contributed to smaller increase in the level of NtEXGT transcripts in response to drought stress. These data suggest that NtEXGT gene is ABA-regulated and probably implicated in ABA-dependent signaling in response to stress factors. 35S::NtEXGT plants of tobacco showed higher rate of root growth under salt-stress conditions, greater frost and heat tolerance as compared with the wild type tobacco plants.
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Affiliation(s)
- Bulat Kuluev
- Institute of Biochemistry and Genetics, Ufa Scientific Centre, Russian Academy of Sciences (IBG USC RAS), pr. Oktyabrya 71, 450054, Ufa, Russia; Bashkir State University (BSU), Z. Validi str. 32, 450074, Ufa, Russia.
| | - Elena Mikhaylova
- Institute of Biochemistry and Genetics, Ufa Scientific Centre, Russian Academy of Sciences (IBG USC RAS), pr. Oktyabrya 71, 450054, Ufa, Russia; Bashkir State University (BSU), Z. Validi str. 32, 450074, Ufa, Russia
| | - Zoya Berezhneva
- Institute of Biochemistry and Genetics, Ufa Scientific Centre, Russian Academy of Sciences (IBG USC RAS), pr. Oktyabrya 71, 450054, Ufa, Russia
| | - Yuri Nikonorov
- Institute of Biochemistry and Genetics, Ufa Scientific Centre, Russian Academy of Sciences (IBG USC RAS), pr. Oktyabrya 71, 450054, Ufa, Russia
| | - Bogdan Postrigan
- Institute of Biochemistry and Genetics, Ufa Scientific Centre, Russian Academy of Sciences (IBG USC RAS), pr. Oktyabrya 71, 450054, Ufa, Russia
| | - Guzel Kudoyarova
- Ufa Institute of Biology, Russian Academy of Sciences (UIB RAS), pr. Oktyabrya 69, 450054, Ufa, Russia
| | - Aleksey Chemeris
- Institute of Biochemistry and Genetics, Ufa Scientific Centre, Russian Academy of Sciences (IBG USC RAS), pr. Oktyabrya 71, 450054, Ufa, Russia
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24
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Li C, Li C, Zhang H, Liao H, Wang X. The purple acid phosphatase GmPAP21 enhances internal phosphorus utilization and possibly plays a role in symbiosis with rhizobia in soybean. PHYSIOLOGIA PLANTARUM 2017; 159:215-227. [PMID: 27762446 DOI: 10.1111/ppl.12524] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/03/2016] [Revised: 10/08/2016] [Accepted: 10/10/2016] [Indexed: 05/20/2023]
Abstract
Induction of secreted and intracellular purple acid phosphatases (PAPs; EC 3.1.3.2) is widely recognized as an adaptation of plants to phosphorus (P) deficiency. The secretion of PAPs plays important roles in P acquisition. However, little is known about the functions of intracellular PAP in plants and nodules. In this study, we identified a novel PAP gene GmPAP21 in soybean. Expression of GmPAP21 was induced by P limitation in nodules, roots and old leaves, and increased in roots with increasing duration of P starvation. Furthermore, the induction of GmPAP21 in nodules and roots was more intensive than in leaves in both P-efficient genotype HN89 and P-inefficient genotype HN112 in response to P starvation, and the relative expression in the leaves and nodules of HN89 was significantly greater than that of HN112 after P deficiency treatment. Further functional analyses showed that over-expressing GmPAP21 significantly enhanced both acid phosphatase activity and growth performance of hairy roots under P starvation condition, indicating that GmPAP21 plays an important role in P utilization. Moreover, GUS expression driven by GmPAP21 promoter was shown in the nodules besides roots. Overexpression of GmPAP21 in transgenic soybean significantly inhibited nodule growth, and thereby affected plant growth after inoculation with rhizobia. This suggests that GmPAP21 is also possibly involved in regulating P metabolism in nodules. Taken together, our results suggest that GmPAP21 is a novel plant PAP that functions in the adaptation of soybean to P starvation, possibly through its involvement in P recycling in plants and P metabolism in nodules.
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Affiliation(s)
- Chengchen Li
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Root Biology Center, South China Agricultural University, Guangzhou, 510642, China
| | - Caifeng Li
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Root Biology Center, South China Agricultural University, Guangzhou, 510642, China
| | - Haiyan Zhang
- Root Biology Center, Fujian Agriculture and Forestry University, Fuzhou, 350002, China
| | - Hong Liao
- Root Biology Center, Fujian Agriculture and Forestry University, Fuzhou, 350002, China
| | - Xiurong Wang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Root Biology Center, South China Agricultural University, Guangzhou, 510642, China
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25
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Kuluev B, Avalbaev A, Mikhaylova E, Nikonorov Y, Berezhneva Z, Chemeris A. Expression profiles and hormonal regulation of tobacco expansin genes and their involvement in abiotic stress response. JOURNAL OF PLANT PHYSIOLOGY 2016; 206:1-12. [PMID: 27664375 DOI: 10.1016/j.jplph.2016.09.001] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/16/2016] [Revised: 09/05/2016] [Accepted: 09/07/2016] [Indexed: 06/06/2023]
Abstract
Changes in the expression levels of tobacco expansin genes NtEXPA1, NtEXPA4, NtEXPA5, and NtEXPA6 were studied in different organs of tobacco (Nicotiana tabacum L.) as well as in response to phytohormone and stress treatments. It was shown that NtEXPA1, NtEXPA4 and NtEXPA5 transcripts were predominantly expressed in the shoot apices and young leaves, but almost absent in mature leaves and roots. The NtEXPA6 mRNA was found at high levels in calluses containing a large number of undifferentiated cells, but hardly detectable in the leaves of different ages and roots. In young leaves, expression levels of NtEXPA1, NtEXPA4 and NtEXPA5 genes were induced by cytokinins, auxins and gibberellins. Cytokinins and auxins were also found to increase NtEXPA6 transcripts in young leaves but to the much lower levels than the other expansin mRNAs. Expression analysis demonstrated that brassinosteroid phytohormones were able either to up-regulate or to down-regulate expression of different expansins in leaves of different ages. Furthermore, transcript levels of NtEXPA1, NtEXPA4, and NtEXPA5 genes were increased in response to NaCl, drought, cold, heat, and 10μM abscisic acid (ABA) treatments but reduced in response to more severe stresses, i.e. cadmium, freezing, and 100μM ABA. In contrast, no substantial changes were found in NtEXPA6 transcript level after all stress treatments. In addition, we examined the involvement of tobacco expansins in the regulation of abiotic stress tolerance by transgenic approaches. Transgenic tobacco plants with constitutive expression of NtEXPA1 and NtEXPA5 exhibited improved tolerance to salt stress: these plants showed higher growth indices after NaCl treatment and minimized water loss by reducing stomatal density. In contrast, NtEXPA4-silenced plants were characterized by a considerable growth reduction under salinity and enhanced water loss. Our findings indicate that expression levels of all studied tobacco expansins genes are modulated by plant hormones whereas NtEXPA1, NtEXPA4, and NtEXPA5 expansins may be involved in the regulation of stress tolerance in tobacco plants.
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Affiliation(s)
- Bulat Kuluev
- Institute of Biochemistry and Genetics, Ufa Research Centre, Russian Academy of Sciences, pr. Oktyabrya 71, Ufa 450054, Russia.
| | - Azamat Avalbaev
- Institute of Biochemistry and Genetics, Ufa Research Centre, Russian Academy of Sciences, pr. Oktyabrya 71, Ufa 450054, Russia.
| | - Elena Mikhaylova
- Institute of Biochemistry and Genetics, Ufa Research Centre, Russian Academy of Sciences, pr. Oktyabrya 71, Ufa 450054, Russia
| | - Yuriy Nikonorov
- Institute of Biochemistry and Genetics, Ufa Research Centre, Russian Academy of Sciences, pr. Oktyabrya 71, Ufa 450054, Russia
| | - Zoya Berezhneva
- Institute of Biochemistry and Genetics, Ufa Research Centre, Russian Academy of Sciences, pr. Oktyabrya 71, Ufa 450054, Russia
| | - Alexey Chemeris
- Institute of Biochemistry and Genetics, Ufa Research Centre, Russian Academy of Sciences, pr. Oktyabrya 71, Ufa 450054, Russia
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26
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Ding A, Marowa P, Kong Y. Genome-wide identification of the expansin gene family in tobacco (Nicotiana tabacum). Mol Genet Genomics 2016; 291:1891-907. [PMID: 27329217 DOI: 10.1007/s00438-016-1226-8] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2016] [Accepted: 06/08/2016] [Indexed: 11/24/2022]
Abstract
Expansins are pH-dependent cell wall loosening proteins which form a large family in plants. They have been shown to be involved in various developmental processes and been implicated in enabling plants' ability to absorb nutrients from the soil as well as conferring biotic and abiotic stress resistances. It is therefore clear that they can be potential targets in genetic engineering for crop improvement. Tobacco (Nicotiana tabacum) is a major crop species as well as a model organism. Considering that only a few tobacco expansins have been studied, a genome-wide analysis of the tobacco expansin gene family is necessary. In this study, we identified 52 expansins in tobacco, which were classified into four subfamilies: 36 NtEXPAs, 6 NtEXPBs, 3 NtEXLAs and 7 NtEXLBs. Compared to other species, the NtEXLB subfamily size was relatively larger. Phylogenetic analysis showed that the 52 tobacco expansins were divided into 13 subgroups. Gene structure analysis revealed that genes within subfamilies/subgroups exhibited similar characteristics such as gene structure and protein motif arrangement. Whole-genome duplication and tandem duplication events may have played important roles in the expanding of tobacco expansins. Cis-Acting element analysis revealed that each expansin gene was regulated or several expansin genes were co-regulated by both internal and environmental factors. 35 of these genes were identified as being expressed according to a microarray analysis. In contrast to most NtEXPAs which had higher expression levels in young organs, NtEXLAs and NtEXLBs were preferentially expressed in mature or senescent tissues, suggesting that they might play different roles in different organs or at different developmental stages. As the first step towards genome-wide analysis of the tobacco expansin gene family, our work provides solid background information related to structure, evolution and expression as well as regulatory cis-acting elements of the tobacco expansins. This information will provide a strong foundation for cloning and functional exploration of expansin genes in tobacco.
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Affiliation(s)
- Anming Ding
- Key Laboratory for Tobacco Gene Resources, Tobacco Research Institute of Chinese Academy of Agricultural Sciences, Qingdao, 266101, Shandong, People's Republic of China
| | - Prince Marowa
- Key Laboratory for Tobacco Gene Resources, Tobacco Research Institute of Chinese Academy of Agricultural Sciences, Qingdao, 266101, Shandong, People's Republic of China
| | - Yingzhen Kong
- Key Laboratory for Tobacco Gene Resources, Tobacco Research Institute of Chinese Academy of Agricultural Sciences, Qingdao, 266101, Shandong, People's Republic of China.
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Marowa P, Ding A, Kong Y. Expansins: roles in plant growth and potential applications in crop improvement. PLANT CELL REPORTS 2016; 35:949-65. [PMID: 26888755 PMCID: PMC4833835 DOI: 10.1007/s00299-016-1948-4] [Citation(s) in RCA: 220] [Impact Index Per Article: 27.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/10/2015] [Accepted: 02/02/2016] [Indexed: 05/18/2023]
Abstract
KEY MESSAGE Results from various expansin related studies have demonstrated that expansins present an opportunity to improve various crops in many different aspects ranging from yield and fruit ripening to improved stress tolerance. The recent advances in expansin studies were reviewed. Besides producing the strength that is needed by the plants, cell walls define cell shape, cell size and cell function. Expansins are cell wall proteins which consist of four sub families; α-expansin, β-expansin, expansin-like A and expansin-like B. These proteins mediate cell wall loosening and they are present in all plants and in some microbial organisms and other organisms like snails. Decades after their initial discovery in cucumber, it is now clear that these small proteins have diverse biological roles in plants. Through their ability to enable the local sliding of wall polymers by reducing adhesion between adjacent wall polysaccharides and the part they play in cell wall remodeling after cytokinesis, it is now clear that expansins are required in almost all plant physiological development aspects from germination to fruiting. This is shown by the various reports from different studies using various molecular biology approaches such as gene achieve these many roles through their non-enzymatic wall loosening ability. This paper reviews and summarizes some of the reported functions of expansins and outlines the potential uses of expansins in crop improvement programs.
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Affiliation(s)
- Prince Marowa
- Key Laboratory for Tobacco Gene Resources, Tobacco Research Institute, Chinese Academy of Agricultural Sciences, Qingdao, 266101, People's Republic of China
| | - Anming Ding
- Key Laboratory for Tobacco Gene Resources, Tobacco Research Institute, Chinese Academy of Agricultural Sciences, Qingdao, 266101, People's Republic of China
| | - Yingzhen Kong
- Key Laboratory for Tobacco Gene Resources, Tobacco Research Institute, Chinese Academy of Agricultural Sciences, Qingdao, 266101, People's Republic of China.
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Zhang C, Hou Y, Hao Q, Chen H, Chen L, Yuan S, Shan Z, Zhang X, Yang Z, Qiu D, Zhou X, Huang W. Genome-wide survey of the soybean GATA transcription factor gene family and expression analysis under low nitrogen stress. PLoS One 2015; 10:e0125174. [PMID: 25886477 PMCID: PMC4401516 DOI: 10.1371/journal.pone.0125174] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2014] [Accepted: 03/21/2015] [Indexed: 01/03/2023] Open
Abstract
GATA transcription factors are transcriptional regulatory proteins that contain a characteristic type-IV zinc finger DNA-binding domain and recognize the conserved GATA motif in the promoter sequence of target genes. Previous studies demonstrated that plant GATA factors possess critical functions in developmental control and responses to the environment. To date, the GATA factors in soybean (Glycine max) have yet to be characterized. Thus, this study identified 64 putative GATA factors from the entire soybean genomic sequence. The chromosomal distributions, gene structures, duplication patterns, phylogenetic tree, tissue expression patterns, and response to low nitrogen stress of the 64 GATA factors in soybean were analyzed to further investigate the functions of these factors. Results indicated that segmental duplication predominantly contributed to the expansion of the GATA factor gene family in soybean. These GATA proteins were phylogenetically clustered into four distinct subfamilies, wherein their gene structure and motif compositions were considerably conserved. A comparative phylogenetic analysis of the GATA factor zinc finger domain sequences in soybean, Arabidopsis (Arabidopsis thaliana), and rice (Oryza sativa) revealed four major classes. The GATA factors in soybean exhibited expression diversity among different tissues; some of these factors showed tissue-specific expression patterns. Numerous GATA factors displayed upregulation or downregulation in soybean leaf in response to low nitrogen stress, and two GATA factors GATA44 and GATA58 were likely to be involved in the regulation of nitrogen metabolism in soybean. Overexpression of GmGATA44 complemented the reduced chlorophyll phenotype of the Arabidopsis ortholog AtGATA21 mutant, implying that GmGATA44 played an important role in modulating chlorophyll biosynthesis. Overall, our study provides useful information for the further analysis of the biological functions of GATA factors in soybean and other crops.
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Affiliation(s)
- Chanjuan Zhang
- Key Laboratory of Oil Crop Biology of the Ministry of Agriculture, Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences, Wuhan, China
| | - Yuqing Hou
- Key Laboratory of Oil Crop Biology of the Ministry of Agriculture, Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences, Wuhan, China
| | - Qingnan Hao
- Key Laboratory of Oil Crop Biology of the Ministry of Agriculture, Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences, Wuhan, China
| | - Haifeng Chen
- Key Laboratory of Oil Crop Biology of the Ministry of Agriculture, Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences, Wuhan, China
| | - Limiao Chen
- Key Laboratory of Oil Crop Biology of the Ministry of Agriculture, Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences, Wuhan, China
| | - Songli Yuan
- Key Laboratory of Oil Crop Biology of the Ministry of Agriculture, Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences, Wuhan, China
| | - Zhihui Shan
- Key Laboratory of Oil Crop Biology of the Ministry of Agriculture, Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences, Wuhan, China
| | - Xiaojuan Zhang
- Key Laboratory of Oil Crop Biology of the Ministry of Agriculture, Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences, Wuhan, China
| | - Zhonglu Yang
- Key Laboratory of Oil Crop Biology of the Ministry of Agriculture, Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences, Wuhan, China
| | - Dezhen Qiu
- Key Laboratory of Oil Crop Biology of the Ministry of Agriculture, Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences, Wuhan, China
| | - Xinan Zhou
- Key Laboratory of Oil Crop Biology of the Ministry of Agriculture, Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences, Wuhan, China
| | - Wenjun Huang
- Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan, China
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