1
|
Liu H, Jia Y, Chai Y, Wang S, Chen H, Zhou X, Huang C, Guo S, Chen D. Whole-transcriptome analysis of differentially expressed genes between ray and disc florets and identification of flowering regulatory genes in Chrysanthemum morifolium. FRONTIERS IN PLANT SCIENCE 2022; 13:947331. [PMID: 35991433 PMCID: PMC9388166 DOI: 10.3389/fpls.2022.947331] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/18/2022] [Accepted: 06/29/2022] [Indexed: 05/13/2023]
Abstract
Chrysanthemum morifolium has ornamental and economic values. However, there has been minimal research on the morphology of the chrysanthemum florets and related genes. In this study, we used the leaves as a control to screen for differentially expressed genes between ray and disc florets in chrysanthemum flowers. A total of 8,359 genes were differentially expressed between the ray and disc florets, of which 3,005 were upregulated and 5,354 were downregulated in the disc florets. Important regulatory genes that control flower development and flowering determination were identified. Among them, we identified a TM6 gene (CmTM6-mu) that belongs to the Class B floral homeotic MADS-box transcription factor family, which was specifically expressed in disc florets. We isolated this gene and found it was highly similar to other typical TM6 lineage genes, but a single-base deletion at the 3' end of the open reading frame caused a frame shift that generated a protein in which the TM6-specific paleoAP3 motif was missing at the C terminus. The CmTM6-mu gene was ectopically expressed in Arabidopsis thaliana. Petal and stamen developmental processes were unaffected in transgenic A. thaliana lines; however, the flowering time was earlier than in the wild-type control. Thus, the C-terminal of paleoAP3 appears to be necessary for the functional performance in regulating the development of petals or stamens and CmTM6-mu may be involved in the regulation of flowering time in chrysanthemum. The results of this study will be useful for future research on flowering molecular mechanisms and for the breeding of novel flower types.
Collapse
Affiliation(s)
- Hua Liu
- Institute of Grassland, Flowers and Ecology, Beijing Academy of Agriculture and Forestry Sciences, Beijing, China
| | - Yin Jia
- College of Landscape Architecture, Sichuan Agricultural University, Chengdu, China
| | - Yuhong Chai
- Institute of Grassland, Flowers and Ecology, Beijing Academy of Agriculture and Forestry Sciences, Beijing, China
- School of Horticulture and Landscape Architecture, Henan Institute of Science and Technology, Xinxiang, China
| | - Sen Wang
- Institute of Grassland, Flowers and Ecology, Beijing Academy of Agriculture and Forestry Sciences, Beijing, China
| | - Haixia Chen
- Institute of Grassland, Flowers and Ecology, Beijing Academy of Agriculture and Forestry Sciences, Beijing, China
| | - Xiumei Zhou
- School of Horticulture and Landscape Architecture, Henan Institute of Science and Technology, Xinxiang, China
| | - Conglin Huang
- Institute of Grassland, Flowers and Ecology, Beijing Academy of Agriculture and Forestry Sciences, Beijing, China
- *Correspondence: Conglin Huang,
| | - Shuang Guo
- Chengdu Park City Construction Development Research Institute, Chengdu, China
- *Correspondence: Conglin Huang,
| | - Dongliang Chen
- Institute of Grassland, Flowers and Ecology, Beijing Academy of Agriculture and Forestry Sciences, Beijing, China
- *Correspondence: Conglin Huang,
| |
Collapse
|
2
|
Gao Y, Yang X, Yang X, Zhao T, An X, Chen Z. Characterization and expression pattern of the trehalose-6-phosphate synthase and trehalose-6-phosphate phosphatase gene families in Populus. Int J Biol Macromol 2021; 187:9-23. [PMID: 34298047 DOI: 10.1016/j.ijbiomac.2021.07.096] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2021] [Revised: 07/10/2021] [Accepted: 07/14/2021] [Indexed: 10/20/2022]
Abstract
Trehalose plays an important role in plant metabolism, growth development, and stress tolerance. Trehalose-6-phosphate synthase gene (TPS) and trehalose-6-phosphate phosphatase gene (TPP) are vital for the synthesis of trehalose. Populus is a prominent perennial woody plant, in which systematic genome-wide analysis of the TPS and TPP family is limited. In this study, 13 PtTPS and 10 PtTPP genes were identified in the Populus genome. Phylogenetic analysis indicated PtTPS and PtTPP genes were both divided into two subfamilies, and gene members of each subfamily have highly conserved intron structures. Analysis of cis-acting elements showed that PtTPS and PtTPP genes were involved in plant hormones and environmental stress responses. Expression profiles also found PtTPSs and PtTPPs expressed differently in response to salt stress, cold, mechanical damage, salicylic acid, and methyl jasmonate treatment. Furthermore, reverse transcription quantitative real-time PCR results found PtTPSs and PtTPPs displayed a specific expression pattern in the seven developmental stages of Populus male and female floral buds. This work will not only lead a foundation on reveal the functions of PtTPS and PtTPP gene families in trehalose regulation of poplar but also provide references to related trehalose research in other perennial plants.
Collapse
Affiliation(s)
- Yuhan Gao
- Beijing Advanced Innovation Center for Tree Breeding by Molecular Design, College of Forestry, Beijing Forestry University, Beijing 100083, China; Key Laboratory of Silviculture and Conservation of the Ministry of Education, College of Forestry, Beijing Forestry University, Beijing 100083, China; National Energy R&D Center for Non-food Biamass, Beijing Forestry University, Beijing 100083, China
| | - Xiaoyu Yang
- National Engineering Laboratory for Tree Breeding, College of Biological Sciences and Biotechnology, Beijing Forestry University, Beijing 100083, China
| | - Xiong Yang
- Beijing Advanced Innovation Center for Tree Breeding by Molecular Design, College of Forestry, Beijing Forestry University, Beijing 100083, China; Key Laboratory of Silviculture and Conservation of the Ministry of Education, College of Forestry, Beijing Forestry University, Beijing 100083, China.
| | - Tianyun Zhao
- Beijing Advanced Innovation Center for Tree Breeding by Molecular Design, College of Forestry, Beijing Forestry University, Beijing 100083, China; Key Laboratory of Silviculture and Conservation of the Ministry of Education, College of Forestry, Beijing Forestry University, Beijing 100083, China
| | - Xinmin An
- National Engineering Laboratory for Tree Breeding, College of Biological Sciences and Biotechnology, Beijing Forestry University, Beijing 100083, China
| | - Zhong Chen
- Beijing Advanced Innovation Center for Tree Breeding by Molecular Design, College of Forestry, Beijing Forestry University, Beijing 100083, China; Key Laboratory of Silviculture and Conservation of the Ministry of Education, College of Forestry, Beijing Forestry University, Beijing 100083, China; National Energy R&D Center for Non-food Biamass, Beijing Forestry University, Beijing 100083, China.
| |
Collapse
|
3
|
Cruz N, Méndez T, Ramos P, Urbina D, Vega A, Gutiérrez RA, Moya-León MA, Herrera R. Induction of PrMADS10 on the lower side of bent pine tree stems: potential role in modifying plant cell wall properties and wood anatomy. Sci Rep 2019; 9:18981. [PMID: 31831838 PMCID: PMC6908731 DOI: 10.1038/s41598-019-55276-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2018] [Accepted: 11/07/2019] [Indexed: 12/20/2022] Open
Abstract
The molecular mechanisms underlying inclination responses in trees are unclear. In this study, we identified a MADS-box transcription factor differentially expressed early after inclination in the stems of Pinus radiata D. Don. PrMADS10 has a CDS of 582 bp and encodes a group II MADS-box transcription factor. We measured highest accumulation of this transcript on the lower side of inclined pine stems. In an effort to identify putative targets, we stably transformed Arabidopsis thaliana with a 35S::PrMADS10 construct. Transcriptome analysis revealed 1,219 genes differentially-expressed, with 690 and 529 genes up- and down-regulated respectively, when comparing the transgenic and wild-type. Differentially-expressed genes belong to different biological processes, but were enriched in cell wall remodeling and phenylpropanoid metabolic functions. Interestingly, lignin content was 30% higher in transgenic as compared to wild-type plants consistent with observed changes in gene expression. Differentially expressed transcription factors and phenylpropanoid genes were analyzed using STRING. Several MYB and NAC transcription factors showed interactions with genes of the phenylpropanoid pathway. Together, these results implicate PrMADS10 as a regulatory factor, triggering the expression of other transcription factors and genes involved in the synthesis of lignin.
Collapse
Affiliation(s)
- Nicolás Cruz
- Instituto de Ciencias Biológicas, Universidad de Talca. Av. Lircay s/n, Talca, Chile
- Facultad de Ciencias Ambientales, Universidad Técnica Estatal de Quevedo, Quevedo, Ecuador
| | - Tamara Méndez
- Instituto de Ciencias Biológicas, Universidad de Talca. Av. Lircay s/n, Talca, Chile
| | - Patricio Ramos
- Instituto de Ciencias Biológicas, Universidad de Talca. Av. Lircay s/n, Talca, Chile
- Núcleo Científico Multidisciplinario-DI, Universidad de Talca. Av. Lircay s/n, Talca, Chile
| | - Daniela Urbina
- Instituto de Ciencias Biológicas, Universidad de Talca. Av. Lircay s/n, Talca, Chile
| | - Andrea Vega
- FONDAP Center for Genome Regulation. Millennium Institute for Integrative Systems and Synthetic Biology. Departamento de Genética Molecular y Microbiología. Facultad Ciencias Biológicas, P. Universidad Católica de Chile, Alameda 340, Santiago, Chile
| | - Rodrigo A Gutiérrez
- FONDAP Center for Genome Regulation. Millennium Institute for Integrative Systems and Synthetic Biology. Departamento de Genética Molecular y Microbiología. Facultad Ciencias Biológicas, P. Universidad Católica de Chile, Alameda 340, Santiago, Chile
| | - María A Moya-León
- Instituto de Ciencias Biológicas, Universidad de Talca. Av. Lircay s/n, Talca, Chile
| | - Raúl Herrera
- Instituto de Ciencias Biológicas, Universidad de Talca. Av. Lircay s/n, Talca, Chile.
| |
Collapse
|
4
|
Wang S, Huang H, Han R, Chen J, Jiang J, Li H, Liu G, Chen S. BpAP1 directly regulates BpDEF to promote male inflorescence formation in Betula platyphylla × B. pendula. TREE PHYSIOLOGY 2019; 39:1046-1060. [PMID: 30976801 DOI: 10.1093/treephys/tpz021] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/03/2018] [Revised: 01/28/2019] [Indexed: 05/15/2023]
Abstract
Flowering is a crucial process for plants that is under complex genetic control. AP1 acts as an organizer and a switch for the transition from vegetative to reproductive growth. In our previous study, we found that overexpression of BpAP1 significantly promoted the formation of male inflorescence in birch (Betula platyphlla × B. pendula). In this study, we aimed at investigating the molecular regulatory mechanism of BpAP1 during the process of male inflorescence formation in birch. We found that overexpression of BpAP1 affected the expression of many flowering-related genes, and had significant effect on B class MADS-box genes. A BpAP1-mediated gene regulatory network was constructed and B class gene BpDEF was finally predicted as a key target gene of BpAP1. Chromatin immunoprecipitation results indicated that BpAP1 could directly regulate BpDEF during the process of male inflorescence formation. Yeast one-hybrid assays and its validation in tobacco results suggested that BpAP1 regulated BpDEF via binding to a consensus DNA sequence known as CArG box. Gene function analysis of BpDEF indicated that BpDEF may function in sex-determination, and in particular specify the identity of male inflorescence in birch. Our results provide valuable clues for our understanding of the molecular mechanism of BpAP1 during the process of male inflorescence formation in birch.
Collapse
Affiliation(s)
- Shuo Wang
- State Key Laboratory of Tree Genetics and Breeding, Northeast Forestry University, 26 Hexing Road, Harbin, China
| | - Haijiao Huang
- State Key Laboratory of Tree Genetics and Breeding, Northeast Forestry University, 26 Hexing Road, Harbin, China
| | - Rui Han
- State Key Laboratory of Tree Genetics and Breeding, Northeast Forestry University, 26 Hexing Road, Harbin, China
| | - Jiying Chen
- State Key Laboratory of Tree Genetics and Breeding, Northeast Forestry University, 26 Hexing Road, Harbin, China
| | - Jing Jiang
- State Key Laboratory of Tree Genetics and Breeding, Northeast Forestry University, 26 Hexing Road, Harbin, China
| | - Huiyu Li
- State Key Laboratory of Tree Genetics and Breeding, Northeast Forestry University, 26 Hexing Road, Harbin, China
| | - Guifeng Liu
- State Key Laboratory of Tree Genetics and Breeding, Northeast Forestry University, 26 Hexing Road, Harbin, China
| | - Su Chen
- State Key Laboratory of Tree Genetics and Breeding, Northeast Forestry University, 26 Hexing Road, Harbin, China
| |
Collapse
|
5
|
Shchennikova AV, Shulga OA, Skryabin KG. Diversification of the Homeotic AP3 Clade MADS-Box Genes in Asteraceae Species Chrysanthemum morifolium L. and Helianthus annuus L. DOKL BIOCHEM BIOPHYS 2018; 483:348-354. [PMID: 30607737 DOI: 10.1134/s1607672918060145] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2018] [Indexed: 11/23/2022]
Abstract
The structure and phylogeny of MADS-box genes HAM91 of sunflower (Helianthus annuus) and CDM115 of chrysanthemum (Chrysanthemum morifolium) were characterized. It is shown that these genes encode MADS-domain transcription factors, which are orthologs of TM6 (Solanum lycopersicum) and APETALA3 (Arabidopsis thaliana), respectively. We obtained two types of transgenic tobacco plants (Nicotiana tabacum) with constitutive expression of HAM91 and CDM115 genes. Both types of plants flowered later than the control plants and formed more flowers and seed pods. The weight of seeds of 35S::CDM115 plants was significantly lower than in the control and 35S::HAM91 plants, which may indicate to a change in the identity of ovules in 35S::CDM115.
Collapse
Affiliation(s)
- A V Shchennikova
- Institute of Bioengineering, Research Center of Biotechnology, Russian Academy of Sciences, Moscow, 119071, Russia.
| | - O A Shulga
- Institute of Bioengineering, Research Center of Biotechnology, Russian Academy of Sciences, Moscow, 119071, Russia
- All-Russia Research Institute of Agricultural Biotechnology, Moscow, 127550, Russia
| | - K G Skryabin
- Institute of Bioengineering, Research Center of Biotechnology, Russian Academy of Sciences, Moscow, 119071, Russia
| |
Collapse
|
6
|
Huang F, Liu T, Hou X. Isolation and Functional Characterization of a Floral Repressor, BcMAF1, From Pak-choi ( Brassica rapa ssp. Chinensis). FRONTIERS IN PLANT SCIENCE 2018; 9:290. [PMID: 29559991 PMCID: PMC5845726 DOI: 10.3389/fpls.2018.00290] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2017] [Accepted: 02/19/2018] [Indexed: 05/08/2023]
Abstract
MADS-box genes form a large gene family in plants and are involved in multiple biological processes, such as flowering. However, the regulation mechanism of MADS-box genes in flowering remains unresolved, especially under short-term cold conditions. In the present study, we isolated BcMAF1, a Pak-choi (Brassica rapa ssp. Chinensis) MADS AFFECTING FLOWERING (MAF), as a floral repressor and functionally characterized BcMAF1 in Arabidopsis and Pak-choi. Subcellular localization and sequence analysis indicated that BcMAF1 was a nuclear protein and contained a conserved MADS-box domain. Expression analysis revealed that BcMAF1 had higher expression levels in leaves, stems, and petals, and could be induced by short-term cold conditions in Pak-choi. Overexpressing BcMAF1 in Arabidopsis showed that BcMAF1 had a negative function in regulating flowering, which was further confirmed by silencing endogenous BcMAF1 in Pak-choi. In addition, qPCR results showed that AtAP3 expression was reduced and AtMAF2 expression was induced in BcMAF1-overexpressing Arabidopsis. Meanwhile, BcAP3 transcript was up-regulated and BcMAF2 transcript was down-regulated in BcMAF1-silencing Pak-choi. Yeast one-hybrid and dual luciferase transient assays showed that BcMAF1 could bind to the promoters of BcAP3 and BcMAF2. These results indicated that BcAP3 and BcMAF2 might be the targets of BcMAF1. Taken together, our results suggested that BcMAF1 could negatively regulate flowering by directly activating BcMAF2 and repressing BcAP3.
Collapse
|
7
|
Chen Z, Ji L, Wang J, Jin J, Yang X, Rao P, Gao K, Liao W, Ye M, An X. Dynamic changes in the transcriptome of Populus hopeiensis in response to abscisic acid. Sci Rep 2017; 7:42708. [PMID: 28198429 PMCID: PMC5309881 DOI: 10.1038/srep42708] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2016] [Accepted: 01/13/2017] [Indexed: 11/09/2022] Open
Abstract
Abscisic acid (ABA) plays a fundamental role in plant response and adaptation to abiotic stresses, such as drought, high salinity and low temperature. Populus hopeiensis exhibits exceptional tolerance to water-deficit environments and is therefore an excellent choice for studying drought tolerance in trees. This study provides a global view of transcriptome dynamics in P. hopeiensis in response to exogenous ABA using Illumina RNA-sequencing. Endogenous ABA content increased and reached a peak at 8 h after ABA treatment and then significantly decreased at latter time points. Differential expression analysis and Gene ontology enrichment revealed that the number of transcripts exhibited significant increase during the first 8 hours after ABA treatment, which then significantly decreased at 12 and 24 h. Transcription factors (TFs) analysis showed that six different patterns were observed based on the expression of the six TFs families (AP2/ERF, NAC, MYB, MYB-related, bZIP and WRKY) and the majority of differentially expressed TFs increased rapidly after ABA treatment. This study provides a robust resource for investigating the functions of genes induced by ABA and will help to develop a better understanding of the molecular regulatory mechanism in response to drought in poplar.
Collapse
Affiliation(s)
- Zhong Chen
- National Engineering Laboratory for Tree Breeding, Key Laboratory of Genetics and Breeding in Forest Trees and Ornamental Plants of the Ministry of Education, The Tree and Ornamental Plant Breeding and Biotechnology Laboratory, College of Biological Sciences and Biotechnology, Beijing Forestry University, Beijing, 100083, P. R. China
| | - Lexiang Ji
- National Engineering Laboratory for Tree Breeding, Key Laboratory of Genetics and Breeding in Forest Trees and Ornamental Plants of the Ministry of Education, The Tree and Ornamental Plant Breeding and Biotechnology Laboratory, College of Biological Sciences and Biotechnology, Beijing Forestry University, Beijing, 100083, P. R. China.,Institute of Bioinformatics, University of Georgia, Athens, GA 30602, USA
| | - Jia Wang
- National Engineering Laboratory for Tree Breeding, Key Laboratory of Genetics and Breeding in Forest Trees and Ornamental Plants of the Ministry of Education, The Tree and Ornamental Plant Breeding and Biotechnology Laboratory, College of Biological Sciences and Biotechnology, Beijing Forestry University, Beijing, 100083, P. R. China
| | - Jinpu Jin
- State Key Laboratory of Protein and Plant Gene Research, Center for Bioinformatics, College of Life Sciences, Peking University, Beijing, 100871, P. R. China
| | - Xiaoyu Yang
- National Engineering Laboratory for Tree Breeding, Key Laboratory of Genetics and Breeding in Forest Trees and Ornamental Plants of the Ministry of Education, The Tree and Ornamental Plant Breeding and Biotechnology Laboratory, College of Biological Sciences and Biotechnology, Beijing Forestry University, Beijing, 100083, P. R. China
| | - Pian Rao
- National Engineering Laboratory for Tree Breeding, Key Laboratory of Genetics and Breeding in Forest Trees and Ornamental Plants of the Ministry of Education, The Tree and Ornamental Plant Breeding and Biotechnology Laboratory, College of Biological Sciences and Biotechnology, Beijing Forestry University, Beijing, 100083, P. R. China
| | - Kai Gao
- National Engineering Laboratory for Tree Breeding, Key Laboratory of Genetics and Breeding in Forest Trees and Ornamental Plants of the Ministry of Education, The Tree and Ornamental Plant Breeding and Biotechnology Laboratory, College of Biological Sciences and Biotechnology, Beijing Forestry University, Beijing, 100083, P. R. China
| | - Weihua Liao
- National Engineering Laboratory for Tree Breeding, Key Laboratory of Genetics and Breeding in Forest Trees and Ornamental Plants of the Ministry of Education, The Tree and Ornamental Plant Breeding and Biotechnology Laboratory, College of Biological Sciences and Biotechnology, Beijing Forestry University, Beijing, 100083, P. R. China
| | - Meixia Ye
- National Engineering Laboratory for Tree Breeding, Key Laboratory of Genetics and Breeding in Forest Trees and Ornamental Plants of the Ministry of Education, The Tree and Ornamental Plant Breeding and Biotechnology Laboratory, College of Biological Sciences and Biotechnology, Beijing Forestry University, Beijing, 100083, P. R. China
| | - Xinmin An
- National Engineering Laboratory for Tree Breeding, Key Laboratory of Genetics and Breeding in Forest Trees and Ornamental Plants of the Ministry of Education, The Tree and Ornamental Plant Breeding and Biotechnology Laboratory, College of Biological Sciences and Biotechnology, Beijing Forestry University, Beijing, 100083, P. R. China
| |
Collapse
|
8
|
Comprehensive analysis of trihelix genes and their expression under biotic and abiotic stresses in Populus trichocarpa. Sci Rep 2016; 6:36274. [PMID: 27782188 PMCID: PMC5080644 DOI: 10.1038/srep36274] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2016] [Accepted: 10/13/2016] [Indexed: 01/22/2023] Open
Abstract
Trihelix genes play important roles in plant growth and development and responses to biotic and abiotic stresses. Here, we identified 56 full-length trihelix genes in Populus trichocarpa and classified them into five groups. Most genes within a given group had similar gene structures and conserved motifs. The trihelix genes were unequally distributed across 19 different linkage groups. Fifteen paralogous pairs were identified, 14 of which have undergone segmental duplication events. Promoter cis-element analysis indicated that most trihelix genes contain stress- or phytohormone-related cis-elements. The expression profiles of the trihelix genes suggest that they are primarily expressed in leaves and roots. Quantitative real-time reverse transcription polymerase chain reaction analysis indicated that members of the trihelix gene family are significantly induced in response to osmotic, abscisic acid, salicylic acid, methyl jasmonate and pathogen infection. PtrGT10 was identified as a target gene of miR172d, which is involved in the osmotic response. Repression of PtrGT10 could increase reactive oxygen species scavenging ability and decrease cell death. This study provides novel insights into the phylogenetic relationships and functions of the P. trichocarpa trihelix genes, which will aid future functional studies investigating the divergent roles of trihelix genes belonging to other species.
Collapse
|
9
|
Li D, Xu X, Hu X, Liu Q, Wang Z, Zhang H, Wang H, Wei M, Wang H, Liu H, Li C. Genome-Wide Analysis and Heavy Metal-Induced Expression Profiling of the HMA Gene Family in Populus trichocarpa. FRONTIERS IN PLANT SCIENCE 2015; 6:1149. [PMID: 26779188 DOI: 10.1007/s11104-018-3637-2] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/06/2015] [Accepted: 12/03/2015] [Indexed: 05/25/2023]
Abstract
The heavy metal ATPase (HMA) family plays an important role in transition metal transport in plants. However, this gene family has not been extensively studied in Populus trichocarpa. We identified 17 HMA genes in P. trichocarpa (PtHMAs), of which PtHMA1-PtHMA4 belonged to the zinc (Zn)/cobalt (Co)/cadmium (Cd)/lead (Pb) subgroup, and PtHMA5-PtHMA8 were members of the copper (Cu)/silver (Ag) subgroup. Most of the genes were localized to chromosomes I and III. Gene structure, gene chromosomal location, and synteny analyses of PtHMAs indicated that tandem and segmental duplications likely contributed to the expansion and evolution of the PtHMAs. Most of the HMA genes contained abiotic stress-related cis-elements. Tissue-specific expression of PtHMA genes showed that PtHMA1 and PtHMA4 had relatively high expression levels in the leaves, whereas Cu/Ag subgroup (PtHMA5.1- PtHMA8) genes were upregulated in the roots. High concentrations of Cu, Ag, Zn, Cd, Co, Pb, and Mn differentially regulated the expression of PtHMAs in various tissues. The preliminary results of the present study generated basic information on the HMA family of Populus that may serve as foundation for future functional studies.
Collapse
Affiliation(s)
- Dandan Li
- State Key Laboratory of Tree Genetics and Breeding, Northeast Forestry University Harbin, China
| | - Xuemei Xu
- Library of Northeast Forestry University Harbin, China
| | - Xiaoqing Hu
- State Key Laboratory of Tree Genetics and Breeding, Northeast Forestry University Harbin, China
| | - Quangang Liu
- State Key Laboratory of Tree Genetics and Breeding, Northeast Forestry University Harbin, China
| | - Zhanchao Wang
- State Key Laboratory of Tree Genetics and Breeding, Northeast Forestry University Harbin, China
| | - Haizhen Zhang
- State Key Laboratory of Tree Genetics and Breeding, Northeast Forestry University Harbin, China
| | - Han Wang
- State Key Laboratory of Tree Genetics and Breeding, Northeast Forestry University Harbin, China
| | - Ming Wei
- State Key Laboratory of Tree Genetics and Breeding, Northeast Forestry University Harbin, China
| | - Hanzeng Wang
- State Key Laboratory of Tree Genetics and Breeding, Northeast Forestry University Harbin, China
| | - Haimei Liu
- State Key Laboratory of Tree Genetics and Breeding, Northeast Forestry University Harbin, China
| | - Chenghao Li
- State Key Laboratory of Tree Genetics and Breeding, Northeast Forestry University Harbin, China
| |
Collapse
|
10
|
Chen Z, Ye M, Su X, Liao W, Ma H, Gao K, Lei B, An X. Overexpression of AtAP1M3 regulates flowering time and floral development in Arabidopsis and effects key flowering-related genes in poplar. Transgenic Res 2015; 24:705-15. [PMID: 25820621 DOI: 10.1007/s11248-015-9870-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2014] [Accepted: 03/19/2015] [Indexed: 11/26/2022]
Abstract
APETALA1 plays a crucial role in the transition from vegetative to reproductive phase and in floral development. In this study, to determine the effect of AP1 expression on flowering time and floral organ development, transgenic Arabidopsis and poplar overexpressing of AtAP1M3 (Arabidopsis AP1 mutant by dominant negative mutation) were generated. Transgenic Arabidopsis with e35Spro::AtAP1M3 displayed phenotypes with delayed-flowering compared to wild-type and flowers with abnormal sepals, petals and stamens. In addition, transgenic Arabidopsis plants exhibited reduced growth vigor compared to the wild-type plants. Ectopic expression of AtAP1M3 in poplar resulted in up- or down-regulation of some endogenous key flowering-related genes, including floral meristems identity gene LFY, B-class floral organ identity genes AP3 and PI, flowering pathway integrator FT1 and flower repressors TFL1 and SVP. These results suggest that AtAP1M3 regulates flowering time and floral development in plants.
Collapse
Affiliation(s)
- Zhong Chen
- National Engineering Laboratory for Tree Breeding, Key Laboratory of Genetics and Breeding in Forest Trees and Ornamental Plants of the Ministry of Education, College of Biological Sciences and Biotechnology, Beijing Forestry University, P.O. Box 118, No. 35 Qinghua East Road, Haidian District, Beijing, 100083, China
| | | | | | | | | | | | | | | |
Collapse
|
11
|
Li D, Xu X, Hu X, Liu Q, Wang Z, Zhang H, Wang H, Wei M, Wang H, Liu H, Li C. Genome-Wide Analysis and Heavy Metal-Induced Expression Profiling of the HMA Gene Family in Populus trichocarpa. FRONTIERS IN PLANT SCIENCE 2015; 6:1149. [PMID: 26779188 PMCID: PMC4688379 DOI: 10.3389/fpls.2015.01149] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/06/2015] [Accepted: 12/03/2015] [Indexed: 05/09/2023]
Abstract
The heavy metal ATPase (HMA) family plays an important role in transition metal transport in plants. However, this gene family has not been extensively studied in Populus trichocarpa. We identified 17 HMA genes in P. trichocarpa (PtHMAs), of which PtHMA1-PtHMA4 belonged to the zinc (Zn)/cobalt (Co)/cadmium (Cd)/lead (Pb) subgroup, and PtHMA5-PtHMA8 were members of the copper (Cu)/silver (Ag) subgroup. Most of the genes were localized to chromosomes I and III. Gene structure, gene chromosomal location, and synteny analyses of PtHMAs indicated that tandem and segmental duplications likely contributed to the expansion and evolution of the PtHMAs. Most of the HMA genes contained abiotic stress-related cis-elements. Tissue-specific expression of PtHMA genes showed that PtHMA1 and PtHMA4 had relatively high expression levels in the leaves, whereas Cu/Ag subgroup (PtHMA5.1- PtHMA8) genes were upregulated in the roots. High concentrations of Cu, Ag, Zn, Cd, Co, Pb, and Mn differentially regulated the expression of PtHMAs in various tissues. The preliminary results of the present study generated basic information on the HMA family of Populus that may serve as foundation for future functional studies.
Collapse
Affiliation(s)
- Dandan Li
- State Key Laboratory of Tree Genetics and Breeding, Northeast Forestry UniversityHarbin, China
| | - Xuemei Xu
- Library of Northeast Forestry UniversityHarbin, China
| | - Xiaoqing Hu
- State Key Laboratory of Tree Genetics and Breeding, Northeast Forestry UniversityHarbin, China
| | - Quangang Liu
- State Key Laboratory of Tree Genetics and Breeding, Northeast Forestry UniversityHarbin, China
| | - Zhanchao Wang
- State Key Laboratory of Tree Genetics and Breeding, Northeast Forestry UniversityHarbin, China
| | - Haizhen Zhang
- State Key Laboratory of Tree Genetics and Breeding, Northeast Forestry UniversityHarbin, China
| | - Han Wang
- State Key Laboratory of Tree Genetics and Breeding, Northeast Forestry UniversityHarbin, China
| | - Ming Wei
- State Key Laboratory of Tree Genetics and Breeding, Northeast Forestry UniversityHarbin, China
| | - Hanzeng Wang
- State Key Laboratory of Tree Genetics and Breeding, Northeast Forestry UniversityHarbin, China
| | - Haimei Liu
- State Key Laboratory of Tree Genetics and Breeding, Northeast Forestry UniversityHarbin, China
| | - Chenghao Li
- State Key Laboratory of Tree Genetics and Breeding, Northeast Forestry UniversityHarbin, China
- *Correspondence: Chenghao Li
| |
Collapse
|
12
|
Ji L, Wang J, Ye M, Li Y, Guo B, Chen Z, Li H, An X. Identification and characterization of the Populus AREB/ABF subfamily. JOURNAL OF INTEGRATIVE PLANT BIOLOGY 2013; 55:177-86. [PMID: 23116154 DOI: 10.1111/j.1744-7909.2012.01183.x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
Abscisic acid (ABA) is a major plant hormone that plays an important role in responses to abiotic stresses. The ABA-responsive element binding protein/ABRE-binding factor (AREB/ABF) gene subfamily contains crucial transcription factors in the ABA-mediated signaling pathway. In this study, a total of 14 putative AREB/ABF members were identified in the Populus trichocarpa Torr. & Gray. genome using five AREB/ABF amino acid sequences from Arabidopsis thaliana L. as probes. The 14 putative Populus subfamily members showed high protein similarities, especially in the basic leucine zipper (bZIP) domain region. A neighbor-joining analysis combined with gene structure data revealed homology among the 14 genes. The expression patterns of the Populus AREB/ABF subfamily suggested that the most abundant transcripts of 11 genes occurred in leaf tissues, while two genes were most transcribed in root tissues. Significantly, eight Populus AREB/ABF gene members were upregulated after treatment with 100 μM exogenous ABA, while the other six members were downregulated. We identified the expression profiles of the subfamily members in Populus tissues and elucidated different response patterns of Populus AREB/ABF members to ABA stress. This study provided insight into the roles of Populus AREB/ABF homologues in plant response to abiotic stresses.
Collapse
Affiliation(s)
- Lexiang Ji
- The Tree and Ornamental Plant Breeding and Biotechnology Laboratory, SFA, College of Biological Sciences and Biotechnology, Beijing Forestry University, Beijing 100083, China
| | | | | | | | | | | | | | | |
Collapse
|