1
|
Fuertes-Aguilar J, Matilla AJ. Transcriptional Control of Seed Life: New Insights into the Role of the NAC Family. Int J Mol Sci 2024; 25:5369. [PMID: 38791407 PMCID: PMC11121595 DOI: 10.3390/ijms25105369] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2024] [Revised: 05/07/2024] [Accepted: 05/10/2024] [Indexed: 05/26/2024] Open
Abstract
Transcription factors (TFs) regulate gene expression by binding to specific sequences on DNA through their DNA-binding domain (DBD), a universal process. This update conveys information about the diverse roles of TFs, focusing on the NACs (NAM-ATAF-CUC), in regulating target-gene expression and influencing various aspects of plant biology. NAC TFs appeared before the emergence of land plants. The NAC family constitutes a diverse group of plant-specific TFs found in mosses, conifers, monocots, and eudicots. This update discusses the evolutionary origins of plant NAC genes/proteins from green algae to their crucial roles in plant development and stress response across various plant species. From mosses and lycophytes to various angiosperms, the number of NAC proteins increases significantly, suggesting a gradual evolution from basal streptophytic green algae. NAC TFs play a critical role in enhancing abiotic stress tolerance, with their function conserved in angiosperms. Furthermore, the modular organization of NACs, their dimeric function, and their localization within cellular compartments contribute to their functional versatility and complexity. While most NAC TFs are nuclear-localized and active, a subset is found in other cellular compartments, indicating inactive forms until specific cues trigger their translocation to the nucleus. Additionally, it highlights their involvement in endoplasmic reticulum (ER) stress-induced programmed cell death (PCD) by activating the vacuolar processing enzyme (VPE) gene. Moreover, this update provides a comprehensive overview of the diverse roles of NAC TFs in plants, including their participation in ER stress responses, leaf senescence (LS), and growth and development. Notably, NACs exhibit correlations with various phytohormones (i.e., ABA, GAs, CK, IAA, JA, and SA), and several NAC genes are inducible by them, influencing a broad spectrum of biological processes. The study of the spatiotemporal expression patterns provides insights into when and where specific NAC genes are active, shedding light on their metabolic contributions. Likewise, this review emphasizes the significance of NAC TFs in transcriptional modules, seed reserve accumulation, and regulation of seed dormancy and germination. Overall, it effectively communicates the intricate and essential functions of NAC TFs in plant biology. Finally, from an evolutionary standpoint, a phylogenetic analysis suggests that it is highly probable that the WRKY family is evolutionarily older than the NAC family.
Collapse
Affiliation(s)
| | - Angel J. Matilla
- Departamento de Biología Funcional, Universidad de Santiago de Compostela, 14971 Santiago de Compostela, Spain
| |
Collapse
|
2
|
Bo C, Liu D, Yang J, Ji M, Li Z, Zhu Y, Duan Y, Xue J, Xue T. Comprehensive in silico characterization of NAC transcription factor family of Pinellia ternata and functional analysis of PtNAC66 under high-temperature tolerance in transgenic Arabidopsis thaliana. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2024; 208:108539. [PMID: 38513515 DOI: 10.1016/j.plaphy.2024.108539] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2023] [Revised: 03/14/2024] [Accepted: 03/15/2024] [Indexed: 03/23/2024]
Abstract
Pinellia ternata, a valuable Chinese herb, suffers yield reduction due to "sprout tumble" under high temperatures. However, the mechanisms underlying its high-temperature stress remain poorly understood. NAM, ATAF1/2, and CUC2 (NAC) transcription factors regulate plant tissue growth and abiotic stress. Hence, there has been no comprehensive research conducted on NAC transcription factors in P. ternata. We identified 98 PtNAC genes unevenly distributed across 13 chromosomes, grouped into 15 families via phylogenetic analysis. Gene expression analysis revealed diverse expression patterns of PtNAC genes in different tissue types. Further studies revealed that PtNAC5/7/17/35/43/47/57/66/86 genes were highly expressed in various tissues of P. ternata and induced by heat stress, among which PtNAC66 was up-regulated at the highest folds induced by heat temperature. PtNAC66 is a nuclear protein that can selectively bind to the cis-responsive region NACRS but lacks the ability to activate transcription in yeast. For further research, PtNAC66 was cloned and transgenic Arabidopsis was obtained. PtNAC66 overexpression increased high-temperature tolerance compared to wild-type plants. Transcriptome profiling demonstrated that overexpression of PtNAC66 led to significant modification of genes responsible for regulating binding, catalytic activity, transcription regulator activity and transporter activity response genes. Additionally, PtNAC66 was found to bind the promoters of CYP707A3, MYB102 and NAC055, respectively, and inhibited their expression, affecting the high-temperature stress response in Arabidopsis. Our research established the foundation for functional studies of PtNAC genes in response to high-temperature forcing by characterizing the P. ternata NAC gene family and examining the biological role of PtNAC66 in plant high-temperature tolerance.
Collapse
Affiliation(s)
- Chen Bo
- Anhui Provincial Engineering Laboratory for Efficient Utilization of Featured Resource Plants, College of Life Sciences, Huaibei Normal University, Huaibei, 235000, China; Huaibei Key Laboratory of Efficient Cultivation and Utilization of Resource Plants, College of Life Sciences, Huaibei Normal University, Huaibei, 235000, China
| | - Dan Liu
- Anhui Provincial Engineering Laboratory for Efficient Utilization of Featured Resource Plants, College of Life Sciences, Huaibei Normal University, Huaibei, 235000, China
| | - Jinrong Yang
- Anhui Provincial Engineering Laboratory for Efficient Utilization of Featured Resource Plants, College of Life Sciences, Huaibei Normal University, Huaibei, 235000, China
| | - Mingfang Ji
- Anhui Provincial Engineering Laboratory for Efficient Utilization of Featured Resource Plants, College of Life Sciences, Huaibei Normal University, Huaibei, 235000, China
| | - Zhen Li
- Anhui Provincial Engineering Laboratory for Efficient Utilization of Featured Resource Plants, College of Life Sciences, Huaibei Normal University, Huaibei, 235000, China
| | - Yanfang Zhu
- Anhui Provincial Engineering Laboratory for Efficient Utilization of Featured Resource Plants, College of Life Sciences, Huaibei Normal University, Huaibei, 235000, China; Huaibei Key Laboratory of Efficient Cultivation and Utilization of Resource Plants, College of Life Sciences, Huaibei Normal University, Huaibei, 235000, China
| | - Yongbo Duan
- Anhui Provincial Engineering Laboratory for Efficient Utilization of Featured Resource Plants, College of Life Sciences, Huaibei Normal University, Huaibei, 235000, China; Huaibei Key Laboratory of Efficient Cultivation and Utilization of Resource Plants, College of Life Sciences, Huaibei Normal University, Huaibei, 235000, China
| | - Jianping Xue
- Anhui Provincial Engineering Laboratory for Efficient Utilization of Featured Resource Plants, College of Life Sciences, Huaibei Normal University, Huaibei, 235000, China; Huaibei Key Laboratory of Efficient Cultivation and Utilization of Resource Plants, College of Life Sciences, Huaibei Normal University, Huaibei, 235000, China.
| | - Tao Xue
- Anhui Provincial Engineering Laboratory for Efficient Utilization of Featured Resource Plants, College of Life Sciences, Huaibei Normal University, Huaibei, 235000, China; Huaibei Key Laboratory of Efficient Cultivation and Utilization of Resource Plants, College of Life Sciences, Huaibei Normal University, Huaibei, 235000, China.
| |
Collapse
|
3
|
Zhang M, Hou X, Yang H, Wang J, Li Y, Liu Q, Zhang C, Wang B, Chen M. The NAC gene family in the halophyte Limonium bicolor: Identification, expression analysis, and regulation of abiotic stress tolerance. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2024; 208:108462. [PMID: 38484683 DOI: 10.1016/j.plaphy.2024.108462] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/22/2023] [Revised: 02/10/2024] [Accepted: 02/21/2024] [Indexed: 04/02/2024]
Abstract
NAC transcription factors regulate plant growth, development, and stress responses. However, the number, types, and biological functions of Limonium bicolor LbNAC genes have remained elusive. L. bicolor secretes excessive salt ions through salt glands on its stems and leaves to reduce salt-induced damage. Here, we identified 63 NAC members (LbNAC1-63) in L. bicolor, which were unevenly distributed across eight chromosomes. Cis-elements in the LbNAC promoters were related to growth and development, stress responses, and phytohormone responses. We observed strong colinearity between LbNACs and GmNACs from soybean (Glycine max). Thus, LbNAC genes may share similar functions with GmNAC genes. Expression analysis indicated that 16 LbNAC genes are highly expressed in roots, stems, leaves, and flowers, whereas 17 LbNAC genes were highly expressed throughout salt gland development, suggesting that they may regulate this developmental stage. Silencing LbNAC54 in L. bicolor decreased salt gland density, salt secretion from leaves, and overall salt tolerance. In agreement, genes related to salt gland development were significantly downregulated in LbNAC54-silenced lines. Our findings shed light on LbNAC genes and help elucidate salt gland development and salt secretion in L. bicolor. Our data also provide insight into NAC functions in halophytes.
Collapse
Affiliation(s)
- Mingjing Zhang
- Shandong Provincial Key Laboratory of Plant Stress Research, College of Life Science, Shandong Normal University, Shandong, 250014, China; Laboratory of Plant Molecular Biology & Crop Gene Editing, School of Life Sciences, Linyi University, Linyi, 276000, China
| | - Xueting Hou
- Shandong Provincial Key Laboratory of Plant Stress Research, College of Life Science, Shandong Normal University, Shandong, 250014, China
| | - Hui Yang
- National Center of Technology Innovation for Comprehensive Utilization of Saline-Alkali Land, Dongying, 257000, China
| | - Juying Wang
- National Center of Technology Innovation for Comprehensive Utilization of Saline-Alkali Land, Dongying, 257000, China
| | - Ying Li
- National Center of Technology Innovation for Comprehensive Utilization of Saline-Alkali Land, Dongying, 257000, China
| | - Qing Liu
- Shandong Provincial Key Laboratory of Plant Stress Research, College of Life Science, Shandong Normal University, Shandong, 250014, China
| | - Caixia Zhang
- Shandong Provincial Key Laboratory of Plant Stress Research, College of Life Science, Shandong Normal University, Shandong, 250014, China
| | - Baoshan Wang
- Shandong Provincial Key Laboratory of Plant Stress Research, College of Life Science, Shandong Normal University, Shandong, 250014, China
| | - Min Chen
- Shandong Provincial Key Laboratory of Plant Stress Research, College of Life Science, Shandong Normal University, Shandong, 250014, China; Dongying Institute, Shandong Normal University, No. 2 Kangyang Road, Dongying, 257000, China.
| |
Collapse
|
4
|
Li C, Zhao A, Yu Y, Cui C, Zeng Q, Shen W, Zhao Y, Wang F, Dong J, Gao X, Yang M. Exploring the Role of TaPLC1-2B in Heat Tolerance at Seedling and Adult Stages of Wheat through Transcriptome Analysis. Int J Mol Sci 2023; 24:16583. [PMID: 38068906 PMCID: PMC10706844 DOI: 10.3390/ijms242316583] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2023] [Revised: 11/15/2023] [Accepted: 11/17/2023] [Indexed: 12/18/2023] Open
Abstract
Heat stress is a major abiotic stress that can cause serious losses of a crop. Our previous work identified a gene involved in heat stress tolerance in wheat, TaPLC1-2B. To further investigate its mechanisms, in the present study, TaPLC1-2B RNAi-silenced transgenic wheat and the wild type were comparatively analyzed at both the seedling and adult stages, with or without heat stress, using transcriptome sequencing. A total of 15,549 differentially expressed genes (DEGs) were identified at the adult stage and 20,535 DEGs were detected at the seedling stage. After heat stress, an enrichment of pathways such as phytohormones and mitogen-activated protein kinase signaling was mainly found in the seedling stage, and pathways related to metabolism, glycerophospholipid metabolism, circadian rhythms, and ABC transporter were enriched in the adult stage. Auxin and abscisic acid were downregulated in the seedling stage and vice versa in the adult stage; and the MYB, WRKY, and no apical meristem gene families were downregulated in the seedling stage in response to heat stress and upregulated in the adult stage in response to heat stress. This study deepens our understanding of the mechanisms of TaPLC1-2B in regard to heat stress in wheat at the seedling and adult stages.
Collapse
Affiliation(s)
- Chenyang Li
- College of Agronomy, Northwest A&F University, Yangling, Xianyang 712100, China; (C.L.); (Y.Y.); (C.C.); (Q.Z.); (W.S.); (Y.Z.); (F.W.); (J.D.); (X.G.)
| | - Ahui Zhao
- College of Plant Protection, Nanjing Agricultural University, Nanjing 210095, China;
| | - Yan Yu
- College of Agronomy, Northwest A&F University, Yangling, Xianyang 712100, China; (C.L.); (Y.Y.); (C.C.); (Q.Z.); (W.S.); (Y.Z.); (F.W.); (J.D.); (X.G.)
| | - Chao Cui
- College of Agronomy, Northwest A&F University, Yangling, Xianyang 712100, China; (C.L.); (Y.Y.); (C.C.); (Q.Z.); (W.S.); (Y.Z.); (F.W.); (J.D.); (X.G.)
| | - Quan Zeng
- College of Agronomy, Northwest A&F University, Yangling, Xianyang 712100, China; (C.L.); (Y.Y.); (C.C.); (Q.Z.); (W.S.); (Y.Z.); (F.W.); (J.D.); (X.G.)
| | - Wei Shen
- College of Agronomy, Northwest A&F University, Yangling, Xianyang 712100, China; (C.L.); (Y.Y.); (C.C.); (Q.Z.); (W.S.); (Y.Z.); (F.W.); (J.D.); (X.G.)
| | - Yang Zhao
- College of Agronomy, Northwest A&F University, Yangling, Xianyang 712100, China; (C.L.); (Y.Y.); (C.C.); (Q.Z.); (W.S.); (Y.Z.); (F.W.); (J.D.); (X.G.)
| | - Fei Wang
- College of Agronomy, Northwest A&F University, Yangling, Xianyang 712100, China; (C.L.); (Y.Y.); (C.C.); (Q.Z.); (W.S.); (Y.Z.); (F.W.); (J.D.); (X.G.)
| | - Jian Dong
- College of Agronomy, Northwest A&F University, Yangling, Xianyang 712100, China; (C.L.); (Y.Y.); (C.C.); (Q.Z.); (W.S.); (Y.Z.); (F.W.); (J.D.); (X.G.)
| | - Xiang Gao
- College of Agronomy, Northwest A&F University, Yangling, Xianyang 712100, China; (C.L.); (Y.Y.); (C.C.); (Q.Z.); (W.S.); (Y.Z.); (F.W.); (J.D.); (X.G.)
| | - Mingming Yang
- College of Agronomy, Northwest A&F University, Yangling, Xianyang 712100, China; (C.L.); (Y.Y.); (C.C.); (Q.Z.); (W.S.); (Y.Z.); (F.W.); (J.D.); (X.G.)
| |
Collapse
|
5
|
Wang X, Tan NWK, Chung FY, Yamaguchi N, Gan ES, Ito T. Transcriptional Regulators of Plant Adaptation to Heat Stress. Int J Mol Sci 2023; 24:13297. [PMID: 37686100 PMCID: PMC10487819 DOI: 10.3390/ijms241713297] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Revised: 08/20/2023] [Accepted: 08/24/2023] [Indexed: 09/10/2023] Open
Abstract
Heat stress (HS) is becoming an increasingly large problem for food security as global warming progresses. As sessile species, plants have evolved different mechanisms to cope with the disruption of cellular homeostasis, which can impede plant growth and development. Here, we summarize the mechanisms underlying transcriptional regulation mediated by transcription factors, epigenetic regulators, and regulatory RNAs in response to HS. Additionally, cellular activities for adaptation to HS are discussed, including maintenance of protein homeostasis through protein quality control machinery, and autophagy, as well as the regulation of ROS homeostasis via a ROS-scavenging system. Plant cells harmoniously regulate their activities to adapt to unfavorable environments. Lastly, we will discuss perspectives on future studies for improving urban agriculture by increasing crop resilience to HS.
Collapse
Affiliation(s)
- Xuejing Wang
- Department of Biological Science, Graduate School of Science and Technology, Nara Institute of Science and Technology, Ikoma 630-0192, Nara, Japan; (X.W.); (N.Y.)
| | - Nicholas Wui Kiat Tan
- School of Applied Science, Republic Polytechnic, Singapore 738964, Singapore; (N.W.K.T.); (F.Y.C.)
| | - Fong Yi Chung
- School of Applied Science, Republic Polytechnic, Singapore 738964, Singapore; (N.W.K.T.); (F.Y.C.)
| | - Nobutoshi Yamaguchi
- Department of Biological Science, Graduate School of Science and Technology, Nara Institute of Science and Technology, Ikoma 630-0192, Nara, Japan; (X.W.); (N.Y.)
| | - Eng-Seng Gan
- School of Applied Science, Republic Polytechnic, Singapore 738964, Singapore; (N.W.K.T.); (F.Y.C.)
| | - Toshiro Ito
- Department of Biological Science, Graduate School of Science and Technology, Nara Institute of Science and Technology, Ikoma 630-0192, Nara, Japan; (X.W.); (N.Y.)
| |
Collapse
|
6
|
Padalino G, Celatka CA, Rienhoff Jr. HY, Kalin JH, Cole PA, Lassalle D, Forde-Thomas J, Chalmers IW, Brancale A, Grunau C, Hoffmann KF. Chemical modulation of Schistosoma mansoni lysine specific demethylase 1 (SmLSD1) induces wide-scale biological and epigenomic changes. Wellcome Open Res 2023; 8:146. [PMID: 37520936 PMCID: PMC10375057 DOI: 10.12688/wellcomeopenres.18826.1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/10/2023] [Indexed: 08/01/2023] Open
Abstract
Background: Schistosoma mansoni, a parasitic worm species responsible for the neglected tropical disease schistosomiasis, undergoes strict developmental regulation of gene expression that is carefully controlled by both genetic and epigenetic processes. As inhibition of S. mansoni epigenetic machinery components impairs key transitions throughout the parasite's digenetic lifecycle, a greater understanding of how epi-drugs affect molecular processes in schistosomes could lead to the development of new anthelmintics. Methods: In vitro whole organism assays were used to assess the anti-schistosomal activity of 39 Homo sapiens Lysine Specific Demethylase 1 (HsLSD1) inhibitors on different parasite life cycle stages. Moreover, tissue-specific stains and genomic analysis shed light on the effect of these small molecules on the parasite biology. Results: Amongst this collection of small molecules, compound 33 was the most potent in reducing ex vivo viabilities of schistosomula, juveniles, miracidia and adults. At its sub-lethal concentration to adults (3.13 µM), compound 33 also significantly impacted oviposition, ovarian as well as vitellarian architecture and gonadal/neoblast stem cell proliferation. ATAC-seq analysis of adults demonstrated that compound 33 significantly affected chromatin structure (intragenic regions > intergenic regions), especially in genes differentially expressed in cell populations (e.g., germinal stem cells, hes2 + stem cell progeny, S1 cells and late female germinal cells) associated with these ex vivo phenotypes. KEGG analyses further highlighted that chromatin structure of genes associated with sugar metabolism as well as TGF-beta and Wnt signalling were also significantly perturbed by compound 33 treatment. Conclusions: This work confirms the importance of histone methylation in S. mansoni lifecycle transitions, suggesting that evaluation of LSD1 - targeting epi-drugs may facilitate the search for next-generation anti-schistosomal drugs. The ability of compound 33 to modulate chromatin structure as well as inhibit parasite survival, oviposition and stem cell proliferation warrants further investigations of this compound and its epigenetic target SmLSD1.
Collapse
Affiliation(s)
- Gilda Padalino
- School of Pharmacy and Pharmaceutical Sciences, Cardiff University, Cardiff, Wales, CF10 3NB, UK
| | | | | | - Jay H. Kalin
- Division of Genetics, Department of Medicine, Brigham and Women’s Hospital and Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School, Boston, MA 02115, USA
| | - Philip A. Cole
- Division of Genetics, Department of Medicine, Brigham and Women’s Hospital and Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School, Boston, MA 02115, USA
| | | | - Josephine Forde-Thomas
- Department of Life Sciences (DLS), Aberystwyth University, Aberystwyth, Wales, SY23 3DA, UK
| | - Iain W. Chalmers
- Department of Life Sciences (DLS), Aberystwyth University, Aberystwyth, Wales, SY23 3DA, UK
| | - Andrea Brancale
- School of Pharmacy and Pharmaceutical Sciences, Cardiff University, Cardiff, Wales, CF10 3NB, UK
| | | | - Karl F. Hoffmann
- Department of Life Sciences (DLS), Aberystwyth University, Aberystwyth, Wales, SY23 3DA, UK
| |
Collapse
|
7
|
Stephen K, Aparna K, Beena R, Sah RP, Jha UC, Behera S. Identification of simple sequence repeat markers linked to heat tolerance in rice using bulked segregant analysis in F 2 population of NERICA-L 44 × Uma. FRONTIERS IN PLANT SCIENCE 2023; 14:1113838. [PMID: 37051081 PMCID: PMC10084929 DOI: 10.3389/fpls.2023.1113838] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/01/2022] [Accepted: 03/06/2023] [Indexed: 06/19/2023]
Abstract
The damage caused by high temperature is one of the most important abiotic stress affecting rice production. Reproductive stage of rice is highly susceptible to high temperature. The present investigation was undertaken to identify polymorphic microsatellite markers (SSR) associated with heat tolerance. The rice cultivars NERICA- L 44 (heat tolerant) and Uma (heat susceptible) were crossed to generate F1 and F2 populations. The F2 population was subjected to heat stress at >38°C and the 144 F2 plants were evaluated for their tolerance. The results note that the mean of the F2 population was influenced by the tolerant parent with regards to the traits of plant height, membrane stability index, photosynthetic rate, stomatal conductance, evapotranspiration rate, pollen viability, spikelet fertility and 1000 grain weight. Ten each of the extremely susceptible and tolerant plants were selected based on the spikelet fertility percentage. Their DNA was pooled into tolerant and susceptible bulks and Bulked Segregant Analysis (BSA) was carried out using 100 SSR markers to check for polymorphism. The survey revealed a polymorphism of 18% between the parents. RM337, RM10793, RM242, RM5749, RM6100, RM490, RM470, RM473, RM222 and RM556 are some of the prominent markers that were found to be polymorphic between the parents and the bulks. We performed gene annotation and enrichment analysis of identified polymorphic markers. Result revealed that the sequence specific site of that chromosome mostly enriched with biological processes like metabolic pathway, molecular mechanism, and subcellular function. Among that RM337 was newly reported marker for heat tolerance. Expression analysis of two genes corresponds to RM337 revealed that LOP1 (LOC_Os08g01330) was linked to high temperature tolerance in rice. The results demonstrate that BSA using SSR markers is useful in identifying genomic regions that contribute to thermotolerance.
Collapse
Affiliation(s)
- K. Stephen
- Department of Plant Physiology, College of Agriculture, Vellayani, Kerala Agricultural University, Thiruvananthapuram, India
| | - K. Aparna
- Department of Plant Physiology, College of Agriculture, Vellayani, Kerala Agricultural University, Thiruvananthapuram, India
| | - R. Beena
- Department of Plant Physiology, College of Agriculture, Vellayani, Kerala Agricultural University, Thiruvananthapuram, India
| | - R. P. Sah
- Crop Improvement Division, Indian Council of Agricultural Research (ICAR)-National Rice Research Institute, Cuttack, India
| | - Uday Chand Jha
- Crop Improvement Division, Indian Institute of Pulses Research, Kanpur, India
| | - Sasmita Behera
- Crop Improvement Division, Indian Council of Agricultural Research (ICAR)-National Rice Research Institute, Cuttack, India
| |
Collapse
|
8
|
Zhao X, Zhao J, Yang Q, Huang M, Song Y, Li M, Sui S, Liu D. Functional Characterization of the CpNAC1 Promoter and Gene from Chimonanthus praecox in Arabidopsis. Int J Mol Sci 2022; 24:ijms24010542. [PMID: 36613984 PMCID: PMC9820485 DOI: 10.3390/ijms24010542] [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: 11/25/2022] [Revised: 12/23/2022] [Accepted: 12/26/2022] [Indexed: 12/30/2022] Open
Abstract
The NAC (NAM, ATAF, and CUC) gene family is one of the largest plant-specific transcription factor families. Its members have various biological functions that play important roles in regulating plant growth and development and in responding to biotic and abiotic stresses. However, their functions in woody plants are not fully understood. In this study, we isolated an NAC family member, the CpNAC1 promoter and gene, from wintersweet. CpNAC1 was localized to the nucleus and showed transcriptional activation activity. qRT-PCR analyses revealed that the gene was expressed in almost all tissues tested, with the highest levels found in mature leaves and flower buds. Moreover, its expression was induced by various abiotic stresses and ABA treatment. Its expression patterns were further confirmed in CpNAC1pro:GUS (β-glucuronidase) plants. Among all the transgenic lines, CpNAC1pro-D2 showed high GUS histochemical staining and activity in different tissues of Arabidopsis. Furthermore, its GUS activity significantly increased in response to various abiotic stresses and ABA treatment. This may be related to the stress-related cis-elements, such as ABRE and MYB, which clustered in the CpNAC1pro-D2 segment, suggesting that CpNAC1pro-D2 is the core segment that responds to abiotic stresses and ABA. In addition, CpNAC1-overexpressed Arabidopsis plants had weaker osmosis tolerance than the wild-type plants, demonstrating that CpNAC1 may negatively regulate the drought stress response in transgenic Arabidopsis. Our results provide a foundation for further analyses of NAC family genes in wintersweet, and they broaden our knowledge of the roles that NAC family genes may play in woody plants.
Collapse
Affiliation(s)
| | | | | | | | | | | | - Shunzhao Sui
- Correspondence: (S.S.); (D.L.); Tel.: +86-23-6825-0086 (S.S.); +86-23-6825-0086 (D.L.)
| | - Daofeng Liu
- Correspondence: (S.S.); (D.L.); Tel.: +86-23-6825-0086 (S.S.); +86-23-6825-0086 (D.L.)
| |
Collapse
|
9
|
Genome-Wide Association Studies of Salt Tolerance at the Seed Germination Stage and Yield-Related Traits in Brassica napus L. Int J Mol Sci 2022; 23:ijms232415892. [PMID: 36555533 PMCID: PMC9785822 DOI: 10.3390/ijms232415892] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Revised: 12/11/2022] [Accepted: 12/12/2022] [Indexed: 12/15/2022] Open
Abstract
Salt stress severely affects crop growth and development and reduces the yield of Brassica napus. Exploring natural genetic variations for high salt tolerance in B. napus seedlings is an effective approach to improve productivity under salt stress. Using 10,658 high-quality single nucleotide polymorphic (SNP) markers developed by specific-locus amplified fragment sequencing (SLAF-seq) technology, genome-wide association studies (GWAS) were performed to investigate the genetic basis of salt tolerance and yield-related traits of B. napus. The results revealed that 77 and 497 SNPs were significantly associated with salt tolerance and yield-related traits, of which 40 and 58 SNPs were located in previously reported QTLs/SNPs, respectively. We identified nineteen candidate genes orthologous with Arabidopsis genes known to be associated with salt tolerance and seven potential candidates controlling both salt tolerance and yield. Our study provides a novel genetic resource for the breeding of high-yield cultivars resistant to salt stress.
Collapse
|
10
|
Nagel M, Arc E, Rajjou L, Cueff G, Bailly M, Clément G, Sanchez-Vicente I, Bailly C, Seal CE, Roach T, Rolletschek H, Lorenzo O, Börner A, Kranner I. Impacts of drought and elevated temperature on the seeds of malting barley. FRONTIERS IN PLANT SCIENCE 2022; 13:1049323. [PMID: 36570960 PMCID: PMC9773840 DOI: 10.3389/fpls.2022.1049323] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/20/2022] [Accepted: 11/10/2022] [Indexed: 06/17/2023]
Abstract
High seed quality is key to agricultural production, which is increasingly affected by climate change. We studied the effects of drought and elevated temperature during seed production on key seed quality traits of two genotypes of malting barley (Hordeum sativum L.). Plants of a "Hana-type" landrace (B1) were taller, flowered earlier and produced heavier, larger and more vigorous seeds that resisted ageing longer compared to a semi-dwarf breeding line (B2). Accordingly, a NAC domain-containing transcription factor (TF) associated with rapid response to environmental stimuli, and the TF ABI5, a key regulator of seed dormancy and vigour, were more abundant in B1 seeds. Drought significantly reduced seed yield in both genotypes, and elevated temperature reduced seed size. Genotype B2 showed partial thermodormancy that was alleviated by drought and elevated temperature. Metabolite profiling revealed clear differences between the embryos of B1 and B2. Drought, but not elevated temperature, affected the metabolism of amino acids, organic acids, osmolytes and nitrogen assimilation, in the seeds of both genotypes. Our study may support future breeding efforts to produce new lodging and drought resistant malting barleys without trade-offs that can occur in semi-dwarf varieties such as lower stress resistance and higher dormancy.
Collapse
Affiliation(s)
- Manuela Nagel
- Genebank Department, Leibniz Institute of Plant Genetics and Crop Plant Research (IPK), Gatersleben, Seeland, Germany
| | - Erwann Arc
- Department of Botany and Center for Molecular Biosciences Innsbruck (CMBI), University of Innsbruck, Innsbruck, Austria
| | - Loïc Rajjou
- Université Paris-Saclay, INRAE, AgroParisTech, Institut Jean-Pierre Bourgin (IJPB), Versailles, France
| | - Gwendal Cueff
- Université Paris-Saclay, INRAE, AgroParisTech, Institut Jean-Pierre Bourgin (IJPB), Versailles, France
| | - Marlene Bailly
- Université Paris-Saclay, INRAE, AgroParisTech, Institut Jean-Pierre Bourgin (IJPB), Versailles, France
| | - Gilles Clément
- Université Paris-Saclay, INRAE, AgroParisTech, Institut Jean-Pierre Bourgin (IJPB), Versailles, France
| | - Inmaculada Sanchez-Vicente
- Department of Botany and Plant Physiology, Instituto de Investigación en Agrobiotecnología (CIALE), Facultad de Biología, Universidad de Salamanca, Salamanca, Spain
| | - Christophe Bailly
- Unité Mixte de Recherche (UMR) 7622 Biologie du Développement, Institut de Biologie Paris Seine (IBPS), Sorbonne Université, CNRS, Paris, France
| | - Charlotte E. Seal
- Royal Botanic Gardens, Kew, Wakehurst, Ardingly, Haywards Heath, West Sussex, Haywards Heath, United Kingdom
| | - Thomas Roach
- Department of Botany and Center for Molecular Biosciences Innsbruck (CMBI), University of Innsbruck, Innsbruck, Austria
| | - Hardy Rolletschek
- Genebank Department, Leibniz Institute of Plant Genetics and Crop Plant Research (IPK), Gatersleben, Seeland, Germany
| | - Oscar Lorenzo
- Department of Botany and Plant Physiology, Instituto de Investigación en Agrobiotecnología (CIALE), Facultad de Biología, Universidad de Salamanca, Salamanca, Spain
| | - Andreas Börner
- Genebank Department, Leibniz Institute of Plant Genetics and Crop Plant Research (IPK), Gatersleben, Seeland, Germany
| | - Ilse Kranner
- Department of Botany and Center for Molecular Biosciences Innsbruck (CMBI), University of Innsbruck, Innsbruck, Austria
| |
Collapse
|
11
|
Sun MM, Liu X, Huang XJ, Yang JJ, Qin PT, Zhou H, Jiang MG, Liao HZ. Genome-Wide Identification and Expression Analysis of the NAC Gene Family in Kandelia obovata, a Typical Mangrove Plant. Curr Issues Mol Biol 2022; 44:5622-5637. [PMID: 36421665 PMCID: PMC9689236 DOI: 10.3390/cimb44110381] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2022] [Revised: 11/10/2022] [Accepted: 11/11/2022] [Indexed: 11/15/2023] Open
Abstract
The NAC (NAM, ATAF1/2, and CUC2) gene family, one of the largest transcription factor families in plants, acts as positive or negative regulators in plant response and adaption to various environmental stresses, including cold stress. Multiple reports on the functional characterization of NAC genes in Arabidopsis thaliana and other plants are available. However, the function of the NAC genes in the typical woody mangrove (Kandelia obovata) remains poorly understood. Here, a comprehensive analysis of NAC genes in K. obovata was performed with a pluri-disciplinary approach including bioinformatic and molecular analyses. We retrieved a contracted NAC family with 68 genes from the K. obovata genome, which were unevenly distributed in the chromosomes and classified into ten classes. These KoNAC genes were differentially and preferentially expressed in different organs, among which, twelve up-regulated and one down-regulated KoNAC genes were identified. Several stress-related cis-regulatory elements, such as LTR (low-temperature response), STRE (stress response element), ABRE (abscisic acid response element), and WUN (wound-responsive element), were identified in the promoter regions of these 13 KoNAC genes. The expression patterns of five selected KoNAC genes (KoNAC6, KoNAC15, KoNAC20, KoNAC38, and KoNAC51) were confirmed by qRT-PCR under cold treatment. These results strongly implied the putative important roles of KoNAC genes in response to chilling and other stresses. Collectively, our findings provide valuable information for further investigations on the function of KoNAC genes.
Collapse
Affiliation(s)
- Man-Man Sun
- Guangxi Key Laboratory of Polysaccharide Materials and Modification, School of Marine Sciences and Biotechnology, Guangxi Minzu University, 158 West Daxue Road, Nanning 530008, China
| | - Xiu Liu
- Guangxi Key Laboratory of Special Non-Wood Forest Cultivation and Utilization, Guangxi Forestry Research Institute, 23 Yongwu Road, Nanning 530002, China
| | - Xiao-Juan Huang
- Guangxi Key Laboratory of Polysaccharide Materials and Modification, School of Marine Sciences and Biotechnology, Guangxi Minzu University, 158 West Daxue Road, Nanning 530008, China
| | - Jing-Jun Yang
- Guangxi Key Laboratory of Special Non-Wood Forest Cultivation and Utilization, Guangxi Forestry Research Institute, 23 Yongwu Road, Nanning 530002, China
| | - Pei-Ting Qin
- Guangxi Key Laboratory of Polysaccharide Materials and Modification, School of Marine Sciences and Biotechnology, Guangxi Minzu University, 158 West Daxue Road, Nanning 530008, China
| | - Hao Zhou
- Guangxi Key Laboratory of Polysaccharide Materials and Modification, School of Marine Sciences and Biotechnology, Guangxi Minzu University, 158 West Daxue Road, Nanning 530008, China
| | - Ming-Guo Jiang
- Guangxi Key Laboratory of Polysaccharide Materials and Modification, School of Marine Sciences and Biotechnology, Guangxi Minzu University, 158 West Daxue Road, Nanning 530008, China
| | - Hong-Ze Liao
- Guangxi Key Laboratory of Polysaccharide Materials and Modification, School of Marine Sciences and Biotechnology, Guangxi Minzu University, 158 West Daxue Road, Nanning 530008, China
| |
Collapse
|