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Kumari A, Sharma P, Rani M, Laxmi V, Sahil, Sahi C, Satturu V, Katiyar-Agarwal S, Agarwal M. Meta-QTL and ortho analysis unravels the genetic architecture and key candidate genes for cold tolerance at seedling stage in rice. PHYSIOLOGY AND MOLECULAR BIOLOGY OF PLANTS : AN INTERNATIONAL JOURNAL OF FUNCTIONAL PLANT BIOLOGY 2024; 30:93-108. [PMID: 38435852 PMCID: PMC10902255 DOI: 10.1007/s12298-024-01412-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Revised: 12/13/2023] [Accepted: 01/10/2024] [Indexed: 03/05/2024]
Abstract
Rice, a critical cereal crop, grapples with productivity challenges due to its inherent sensitivity to low temperatures, primarily during the seedling and booting stages. Recognizing the polygenic complexity of cold stress signaling in rice, a meta-analysis was undertaken, focusing on 20 physiological traits integral to cold tolerance. This initiative allowed the consolidation of genetic data from 242 QTLs into 58 meta-QTLs, thereby significantly constricting the genetic and physical intervals, with 84% of meta-QTLs (MQTLs) being reduced to less than 2 Mb. The list of 10,505 genes within these MQTLs, was further refined utilizing expression datasets to pinpoint 46 pivotal genes exhibiting noteworthy differential regulation during cold stress. The study underscored the presence of several TFs such as WRKY, NAC, CBF/DREB, MYB, and bHLH, known for their roles in cold stress response. Further, ortho-analysis involving maize, barley, and Arabidopsis identified OsWRKY71, among others, as a prospective candidate for enhancing cold tolerance in diverse crop plants. In conclusion, our study delineates the intricate genetic architecture underpinning cold tolerance in rice and propounds significant candidate genes, offering crucial insights for further research and breeding strategies focused on fortifying crops against cold stress, thereby bolstering global food resilience. Supplementary Information The online version contains supplementary material available at 10.1007/s12298-024-01412-1.
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Affiliation(s)
- Anita Kumari
- Department of Botany, University of Delhi, Delhi, India
| | - Priya Sharma
- Department of Botany, University of Delhi, Delhi, India
| | - Mamta Rani
- Department of Botany, University of Delhi, Delhi, India
| | - Vijay Laxmi
- Department of Botany, University of Delhi, Delhi, India
| | - Sahil
- Department of Botany, University of Delhi, Delhi, India
| | - Chandan Sahi
- Department of Biological Sciences, Indian Institute of Science Education and Research, Bhopal, Madhya Pradesh 462066 India
| | - Vanisree Satturu
- Professor Jayashankar, Telangana State Agricultural University, Hyderabad, India
| | | | - Manu Agarwal
- Department of Botany, University of Delhi, Delhi, India
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Combination of Genomics, Transcriptomics Identifies Candidate Loci Related to Cold Tolerance in Dongxiang Wild Rice. PLANTS 2022; 11:plants11182329. [PMID: 36145730 PMCID: PMC9506393 DOI: 10.3390/plants11182329] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/27/2022] [Revised: 08/22/2022] [Accepted: 09/02/2022] [Indexed: 11/17/2022]
Abstract
Rice, a cold-sensitive crop, is a staple food for more than 50% of the world’s population. Low temperature severely compromises the growth of rice and challenges China’s food safety. Dongxiang wild rice (DXWR) is the most northerly common wild rice in China and has strong cold tolerance, but the genetic basis of its cold tolerance is still unclear. Here, we report quantitative trait loci (QTLs) analysis for seedling cold tolerance (SCT) using a high-density single nucleotide polymorphism linkage map in the backcross recombinant inbred lines that were derived from a cross of DXWR, and an indica cultivar, GZX49. A total of 10 putative QTLs were identified for SCT under 4 °C cold treatment, each explaining 2.0–6.8% of the phenotypic variation in this population. Furthermore, transcriptome sequencing of DXWR seedlings before and after cold treatment was performed, and 898 and 3413 differentially expressed genes (DEGs) relative to 0 h in cold-tolerant for 4 h and 12 h were identified, respectively. Gene ontology and Kyoto encyclopedia of genes and genomes (KEGG) analysis were performed on these DEGs. Using transcriptome data and genetic linkage analysis, combined with qRT-PCR, sequence comparison, and bioinformatics, LOC_Os08g04840 was putatively identified as a candidate gene for the major effect locus qSCT8. These findings provided insights into the genetic basis of SCT for the improvement of cold stress potential in rice breeding programs.
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Ganie SA, Bhat JA, Devoto A. The influence of endophytes on rice fitness under environmental stresses. PLANT MOLECULAR BIOLOGY 2022; 109:447-467. [PMID: 34859329 PMCID: PMC9213282 DOI: 10.1007/s11103-021-01219-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/27/2021] [Accepted: 11/08/2021] [Indexed: 05/26/2023]
Abstract
KEY MESSAGE Endophytes are crucial for the promotion of rice growth and stress tolerance and can be used to increase rice crop yield. Endophytes can thus be exploited in biotechnology and genetic engineering as eco-friendly and cost-effective means for the development of high-yielding and stress-tolerant rice plants. Rice (Oryza sativa) crop is continuously subjected to biotic and abiotic stresses, compromising growth and consequently yield. The situation is exacerbated by climate change impacting on ecosystems and biodiversity. Genetic engineering has been used to develop stress-tolerant rice, alongside physical and chemical methods to mitigate the effect of these stresses. However, the success of these strategies has been hindered by short-lived field success and public concern on adverse effects associated. The limited success in the field of stress-tolerant cultivars developed through breeding or transgenic approaches is due to the complex nature of stress tolerance as well as to the resistance breakdown caused by accelerated evolution of pathogens. It is therefore necessary to develop novel and acceptable strategies to enhance rice stress tolerance and durable resistance and consequently improve yield. In the last decade, plant growth promoting (PGP) microbes, especially endophytes, have drawn the attention of agricultural scientists worldwide, due to their ability to mitigate environmental stresses in crops, without causing adverse effects. Increasing evidence indicates that endophytes effectively confer fitness benefits also to rice under biotic and abiotic stress conditions. Endophyte-produced metabolites can control the expression of stress-responsive genes and improve the physiological performance and growth of rice plants. This review highlights the current evidence available for PGP microbe-promoted tolerance of rice to abiotic stresses such as salinity and drought and to biotic ones, with special emphasis on endophytes. Associated molecular mechanisms are illustrated, and prospects for sustainable rice production also in the light of the impending climate change, discussed.
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Affiliation(s)
- Showkat Ahmad Ganie
- Plant Molecular Science and Centre of Systems and Synthetic Biology, Department of Biological Sciences, Royal Holloway University of London, Egham, Surrey, TW20 0EX, UK
| | - Javaid Akhter Bhat
- State Key Laboratory for Crop Genetics and Germplasm Enhancement, College of Agriculture, Nanjing Agricultural University, Nanjing, 210095, China.
| | - Alessandra Devoto
- Plant Molecular Science and Centre of Systems and Synthetic Biology, Department of Biological Sciences, Royal Holloway University of London, Egham, Surrey, TW20 0EX, UK.
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Jeong BY, Lee Y, Kwon Y, Kim JH, Ham TH, Kwon SW, Lee J. Genome-Wide Association Study Reveals the Genetic Basis of Chilling Tolerance in Rice at the Reproductive Stage. PLANTS 2021; 10:plants10081722. [PMID: 34451767 PMCID: PMC8398597 DOI: 10.3390/plants10081722] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/22/2021] [Revised: 08/11/2021] [Accepted: 08/12/2021] [Indexed: 11/16/2022]
Abstract
A genome-wide association study (GWAS) was used to investigate the genetic basis of chilling tolerance in a collection of 117 rice accessions, including 26 Korean landraces and 29 weedy rices, at the reproductive stage. To assess chilling tolerance at the early young microspore stage, plants were treated at 12 °C for 5 days, and tolerance was evaluated using seed set fertility. GWAS, together with principal component analysis and kinship matrix analysis, revealed five quantitative trait loci (QTLs) associated with chilling tolerance on chromosomes 3, 6, and 7. The percentage of phenotypic variation explained by the QTLs was 11-19%. The genomic region underlying the QTL on chromosome 3 overlapped with a previously reported QTL associated with spikelet fertility. Subsequent bioinformatic and haplotype analyses suggested three candidate chilling-tolerance genes within the QTL linkage disequilibrium block: Os03g0305700, encoding a protein similar to peptide chain release factor 2; Os06g0495700, encoding a beta tubulin, autoregulation binding-site-domain-containing protein; and Os07g0137800, encoding a protein kinase, core-domain-containing protein. Further analysis of the detected QTLs and the candidate chilling-tolerance genes will facilitate strategies for developing chilling-tolerant rice cultivars in breeding programs.
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Affiliation(s)
- Byeong Yong Jeong
- Department of Crop Science, Konkuk University, Seoul 05029, Korea; (B.Y.J.); (Y.L.); (Y.K.); (J.H.K.); (T.-H.H.)
| | - Yoonjung Lee
- Department of Crop Science, Konkuk University, Seoul 05029, Korea; (B.Y.J.); (Y.L.); (Y.K.); (J.H.K.); (T.-H.H.)
| | - Yebin Kwon
- Department of Crop Science, Konkuk University, Seoul 05029, Korea; (B.Y.J.); (Y.L.); (Y.K.); (J.H.K.); (T.-H.H.)
| | - Jee Hye Kim
- Department of Crop Science, Konkuk University, Seoul 05029, Korea; (B.Y.J.); (Y.L.); (Y.K.); (J.H.K.); (T.-H.H.)
| | - Tae-Ho Ham
- Department of Crop Science, Konkuk University, Seoul 05029, Korea; (B.Y.J.); (Y.L.); (Y.K.); (J.H.K.); (T.-H.H.)
| | - Soon-Wook Kwon
- Department of Plant Bioscience, College of Natural Resources and Life Science, Pusan National University, Miryang 50463, Korea;
| | - Joohyun Lee
- Department of Crop Science, Konkuk University, Seoul 05029, Korea; (B.Y.J.); (Y.L.); (Y.K.); (J.H.K.); (T.-H.H.)
- Correspondence:
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Viana VE, Carlos da Maia L, Busanello C, Pegoraro C, Costa de Oliveira A. When rice gets the chills: comparative transcriptome profiling at germination shows WRKY transcription factor responses. PLANT BIOLOGY (STUTTGART, GERMANY) 2021; 23 Suppl 1:100-112. [PMID: 33773005 DOI: 10.1111/plb.13262] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/27/2021] [Accepted: 03/16/2021] [Indexed: 06/12/2023]
Abstract
Rice is vital for food security. Due to its tropical origin, rice suffers from cold temperatures that affect its entire life cycle. Key genes have been identified involved in cold tolerance. WRKYs are generally downstream of the MAPK cascade and can act together with VQ proteins to regulate stress-responsive genes. Chilling treatment was applied at germination to two rice genotypes (tolerant and sensitive). Shoots at S3 stage were collected for RNA-seq to identify OsWRKY, OsMAPKs and OsVQs expression. Relationships among MAPKs, WRKYs and VQs were predicted through correlation analysis. OsWRKY transcriptional regulation was predicted by in silico analysis of cis-regulatory elements. A total of 39 OsWRKYs were differentially expressed. OsWRKY21, OsWRK24 and OsWRKY69 are potential positive regulators, while OsWRKY10, OsWRK47, OsWRKY62, OsWRKY72 and OsWRKY77 are potential negative regulators, of chilling tolerance. 12 OsMAPKs were differentially expressed. OsMAPKs were downregulated and negatively correlated with the upregulated OsWRKYs in the tolerant genotype. 19 OsVQs were differentially expressed, three and six OsVQs were positively correlated with OsWRKYs in the tolerant and sensitive genotypes, respectively. Seven differentially expressed OsWRKYs have cold-responsive elements in their promoters and five upregulated OsWRKYs in the tolerant genotype contained the W-box motif. Chilling causes changes in OsWRKY, OsMAPK and OsVQ gene expression at germination. OsWRKYs may not act downstream of the MAPK cascade to coordinate chilling tolerance, but OsWRKYs may act with VQs to regulate chilling tolerance. Candidate OsWRKYs are correlated and have a W-box in the promoter, suggesting an auto-regulation mechanism.
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Affiliation(s)
- V E Viana
- Plant Genomics and Breeding Center, Eliseu Maciel School of Agronomy, Federal University of Pelotas, Pelotas-RS, Brazil
| | - L Carlos da Maia
- Plant Genomics and Breeding Center, Eliseu Maciel School of Agronomy, Federal University of Pelotas, Pelotas-RS, Brazil
| | - C Busanello
- Plant Genomics and Breeding Center, Eliseu Maciel School of Agronomy, Federal University of Pelotas, Pelotas-RS, Brazil
| | - C Pegoraro
- Plant Genomics and Breeding Center, Eliseu Maciel School of Agronomy, Federal University of Pelotas, Pelotas-RS, Brazil
| | - A Costa de Oliveira
- Plant Genomics and Breeding Center, Eliseu Maciel School of Agronomy, Federal University of Pelotas, Pelotas-RS, Brazil
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Khlaimongkhon S, Chakhonkaen S, Tongmark K, Sangarwut N, Panyawut N, Wasinanon T, Sikaewtung K, Wanchana S, Mongkolsiriwatana C, Chunwonges J, Muangprom A. RNA Sequencing Reveals Rice Genes Involved in Male Reproductive Development under Temperature Alteration. PLANTS 2021; 10:plants10040663. [PMID: 33808467 PMCID: PMC8066911 DOI: 10.3390/plants10040663] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/01/2021] [Revised: 03/22/2021] [Accepted: 03/24/2021] [Indexed: 11/25/2022]
Abstract
Rice (Oryza sativa L.) is one of the most important food crops, providing food for nearly half of the world population. Rice grain yields are affected by temperature changes. Temperature stresses, both low and high, affect male reproductive development, resulting in yield reduction. Thermosensitive genic male sterility (TGMS) rice is sterile at high temperature and fertile at low temperature conditions, facilitating hybrid production, and is a good model to study effects of temperatures on male development. Semithin sections of the anthers of a TGMS rice line under low (fertile) and high (sterile) temperature conditions showed differences starting from the dyad stage, suggesting that genes involved in male development play a role during postmeiotic microspore development. Using RNA sequencing (RNA-Seq), transcriptional profiling of TGMS rice panicles at the dyad stage revealed 232 genes showing differential expression (DEGs) in a sterile, compared to a fertile, condition. Using qRT-PCR to study expression of 20 selected DEGs using panicles of TGMS and wild type rice plants grown under low and high temperature conditions, revealed that six out of the 20 selected genes may be unique to TGMS, while the other 14 genes showed common responses to temperatures in both TGMS and wild-type rice plants. The results presented here would be useful for further investigation into molecular mechanisms controlling TGMS and rice responses to temperature alteration.
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Affiliation(s)
- Sudthana Khlaimongkhon
- Center for Agricultural Biotechnology, Kasetsart University, Kamphaeng Saen Campus, Kamphaeng Saen 73140, Thailand; (S.K.); (J.C.)
- Center of Excellence on Agricultural Biotechnology: (AG-BIO/PERDO-CHE), Bangkok 10900, Thailand
| | - Sriprapai Chakhonkaen
- National Center for Genetic Engineering and Biotechnology, National Science and Technology Development Agency, Pathum Thani 12120, Thailand; (S.C.); (K.T.); (N.S.); (N.P.); (T.W.); (K.S.); (S.W.)
| | - Keasinee Tongmark
- National Center for Genetic Engineering and Biotechnology, National Science and Technology Development Agency, Pathum Thani 12120, Thailand; (S.C.); (K.T.); (N.S.); (N.P.); (T.W.); (K.S.); (S.W.)
| | - Numphet Sangarwut
- National Center for Genetic Engineering and Biotechnology, National Science and Technology Development Agency, Pathum Thani 12120, Thailand; (S.C.); (K.T.); (N.S.); (N.P.); (T.W.); (K.S.); (S.W.)
| | - Natjaree Panyawut
- National Center for Genetic Engineering and Biotechnology, National Science and Technology Development Agency, Pathum Thani 12120, Thailand; (S.C.); (K.T.); (N.S.); (N.P.); (T.W.); (K.S.); (S.W.)
| | - Thiwawan Wasinanon
- National Center for Genetic Engineering and Biotechnology, National Science and Technology Development Agency, Pathum Thani 12120, Thailand; (S.C.); (K.T.); (N.S.); (N.P.); (T.W.); (K.S.); (S.W.)
| | - Kannika Sikaewtung
- National Center for Genetic Engineering and Biotechnology, National Science and Technology Development Agency, Pathum Thani 12120, Thailand; (S.C.); (K.T.); (N.S.); (N.P.); (T.W.); (K.S.); (S.W.)
| | - Samart Wanchana
- National Center for Genetic Engineering and Biotechnology, National Science and Technology Development Agency, Pathum Thani 12120, Thailand; (S.C.); (K.T.); (N.S.); (N.P.); (T.W.); (K.S.); (S.W.)
| | - Chareerat Mongkolsiriwatana
- Division of Genetics, Faculty of Liberal Arts and Science, Kasetsart University, Nakhon Pathom 73140, Thailand;
| | - Julapark Chunwonges
- Center for Agricultural Biotechnology, Kasetsart University, Kamphaeng Saen Campus, Kamphaeng Saen 73140, Thailand; (S.K.); (J.C.)
- Department of Horticulture, Faculty of Agriculture, Kasetsart University, Nakhon Pathom 73140, Thailand
| | - Amorntip Muangprom
- Center for Agricultural Biotechnology, Kasetsart University, Kamphaeng Saen Campus, Kamphaeng Saen 73140, Thailand; (S.K.); (J.C.)
- National Center for Genetic Engineering and Biotechnology, National Science and Technology Development Agency, Pathum Thani 12120, Thailand; (S.C.); (K.T.); (N.S.); (N.P.); (T.W.); (K.S.); (S.W.)
- Correspondence: ; Tel.: +66-25646700 (ext. 3348)
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Han B, Ma X, Cui D, Wang Y, Geng L, Cao G, Zhang H, Han L. Comprehensive Evaluation and Analysis of the Mechanism of Cold Tolerance Based on the Transcriptome of Weedy Rice Seedlings. RICE (NEW YORK, N.Y.) 2020; 13:12. [PMID: 32056019 PMCID: PMC7018935 DOI: 10.1186/s12284-019-0363-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/18/2019] [Accepted: 12/20/2019] [Indexed: 06/10/2023]
Abstract
In this study, the cold-tolerance capacity of 133 varieties of weedy rice was evaluated based on the comprehensive evaluation index D, with Kongyu 131 used as a cold-tolerant control. A total of 39.8% of the 133 varieties were considered 'strong', indicating that weedy rice populations indeed have relatively strong cold-tolerance capacity as a whole, and the robust cold-tolerant varieties WR29 and WR157 were identified. Regression analysis showed that the metrics including the nitrogen recovery index, superoxide dismutase (SOD) content and malondialdehyde (MDA) content correlated significantly (P < 0.05) with cold tolerance and could be used as indicators of cold tolerance. On the basis of a transcriptome analysis of WR157, a robust cold-tolerant variety identified in this study, a total of 4645 putative DEGs were identified in treated groups compared to the control groups, with 2123 upregulated DEGs and 2522 downregulated DEGs. All upregulated DEGs were enriched on 1388 terms, all downregulated DEGs were enriched on 1566 terms; 911 of the 2123 upregulated DEGs fell into 98 KEGG categories and 1103 of the 2522 downregulated DEGs were in 115 categories. Further analysis showed that GO:0019740 and GO:0006808 are involved in nitrogen utilization; GO:0009269 and GO:0009414 are related to the stress response; and GO:0016491 and GO:0016614 are related to oxidoreductase activity. BACKGROUND: Weedy rice (Oryza) is a related pest species of cultivated rice (Oryza sativa L.) that has strong abiotic stress resistance; however, the comprehensive mechanism governing its cold tolerance is poorly understood. CONCLUSION: Our comprehensive evaluation based on five morphological indices and nine physiological indicators revealed outstanding levels of cold-tolerance capacity among weedy rice varieties from different regions and revealed some terms related to cold tolerance via transcriptome analysis. Our results underscored the reliable evaluation methods for additional cold tolerance studies and revealed several genes related to cold tolerance, which will help researchers breed cultivated rice varieties to increase their cold-tolerance capacity. These traits have the ability to increase seedling survival rate and growth, as well as future yields.
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Affiliation(s)
- Bing Han
- Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100081 China
| | - Xiaoding Ma
- Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100081 China
| | - Di Cui
- Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100081 China
| | - Yanjie Wang
- Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100081 China
| | - Leiyue Geng
- Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100081 China
- Coastal Agriculture Institute, Hebei Academy of Agricultural and Forestry Sciences, Tangshan, 063299 China
| | - Guilan Cao
- Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100081 China
| | - Hui Zhang
- Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100081 China
| | - Longzhi Han
- Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100081 China
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Li S, Jiang H, Wang J, Wang Y, Pan S, Tian H, Duan M, Wang S, Tang X, Mo Z. Responses of plant growth, physiological, gas exchange parameters of super and non-super rice to rhizosphere temperature at the tillering stage. Sci Rep 2019; 9:10618. [PMID: 31337786 PMCID: PMC6650488 DOI: 10.1038/s41598-019-47031-9] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2019] [Accepted: 07/09/2019] [Indexed: 12/24/2022] Open
Abstract
Temperature is one of the critical factors affecting rice growth and yield production. This study investigated the effects of rhizosphere temperature at the tillering stage on the growth, physiological parameters and gas exchange attributes of two rice cultivars, i.e., the super rice cultivar Yuxiangyouzhan and the non-super rice cultivar Xiangyaxiangzhan, under hydroponic conditions. Three rhizosphere temperature treatments, i.e., a low-rhizosphere-temperature treatment (LT, nutrient solution at 17.5 ± 1.5 °C), an ambient-temperature treatment (AT, nutrient solution at 27.5 ± 1.5 °C), and a high-rhizosphere-temperature treatment (HT, nutrient solution at 37.5 ± 1.5 °C), were applied in this study. The results showed significant differences in most of the rice growth and physiological and gas exchange parameters as a result of cultivar and rhizosphere temperature as well as their interaction. In addition, the marked reduction in total dry weight was positively correlated with a notable reduction in plant morphological parameters, such as the fresh and dry weight of the leaves and stem sheaths, and changes in gas exchange parameters. Moreover, antioxidant reactions were active in response to high and low rhizosphere temperatures, which varied in different plant tissues. These results suggested that the super and non-super rice were sensitive to high and low rhizosphere temperatures, respectively.
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Affiliation(s)
- Shuying Li
- College of Agriculture, South China Agricultural University, Guangzhou, China
- College of Agronomy and Biotechnology, China Agricultural University, Beijing, China
| | - Haolin Jiang
- College of Agriculture, South China Agricultural University, Guangzhou, China
| | - Jianjun Wang
- College of Agriculture, South China Agricultural University, Guangzhou, China
| | - Yandong Wang
- College of Agriculture, South China Agricultural University, Guangzhou, China
| | - Shenggang Pan
- College of Agriculture, South China Agricultural University, Guangzhou, China
- Scientific Observing and Experimental Station of Crop Cultivation in South China, Ministry of Agriculture. P. R. China, Guangzhou, 510642, Guangdong, China
| | - Hua Tian
- College of Agriculture, South China Agricultural University, Guangzhou, China
- Scientific Observing and Experimental Station of Crop Cultivation in South China, Ministry of Agriculture. P. R. China, Guangzhou, 510642, Guangdong, China
| | - Meiyang Duan
- College of Agriculture, South China Agricultural University, Guangzhou, China
- Scientific Observing and Experimental Station of Crop Cultivation in South China, Ministry of Agriculture. P. R. China, Guangzhou, 510642, Guangdong, China
| | - Shuli Wang
- College of Agriculture, South China Agricultural University, Guangzhou, China
- Scientific Observing and Experimental Station of Crop Cultivation in South China, Ministry of Agriculture. P. R. China, Guangzhou, 510642, Guangdong, China
| | - Xiangru Tang
- College of Agriculture, South China Agricultural University, Guangzhou, China.
- Scientific Observing and Experimental Station of Crop Cultivation in South China, Ministry of Agriculture. P. R. China, Guangzhou, 510642, Guangdong, China.
| | - Zhaowen Mo
- College of Agriculture, South China Agricultural University, Guangzhou, China.
- Scientific Observing and Experimental Station of Crop Cultivation in South China, Ministry of Agriculture. P. R. China, Guangzhou, 510642, Guangdong, China.
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Aslam M, Fakher B, Anandhan S, Pande V, Ahmed Z, Qin Y. Ectopic Expression of Cold Responsive LlaCIPK Gene Enhances Cold Stress Tolerance in Nicotiana tabacum. Genes (Basel) 2019; 10:E446. [PMID: 31212842 PMCID: PMC6627969 DOI: 10.3390/genes10060446] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2019] [Revised: 05/31/2019] [Accepted: 05/31/2019] [Indexed: 11/16/2022] Open
Abstract
Low-temperature stress severely affects the growth, development, and geographical distribution of various crop plants, resulting in significant economic loss to producers. In a quest to identify cold-regulated genes, we constructed a cDNA suppression subtractive library from a high altitude adapted ecotype of Lepidium. We cloned a cold-induced gene LlaCIPK from the subtracted cDNA library which gave homology to Arabidopsis CIPK15 gene. The predicted 3D structure of LlaCIPK protein also showed homology with Arabidopsis CIPK protein. Quantitative real-time PCR analysis in Lepidium seedlings exposed to 6 h of cold stress shows a 3-fold increase in the expression of LlaCIPK transcript. The expression of LlaCIPK was also differentially regulated by ethylene, CaCl2, ABA, and SA treatments. Ethylene and CaCl2 treatments up regulated LlaCIPK expression, whereas ABA and SA treatments down regulated the LlaCIPK expression. Transgenic plants overexpressing LlaCIPK gene under constitutive promoter show an increased level of proline and cell membrane stability. Taken together, our results suggest that the LlaCIPK contributes to the cold-response pathway in Lepidium plants.
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Affiliation(s)
- Mohammad Aslam
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Key Laboratory of Genetics, Breeding and Multiple Utilization of Crops, Ministry of Education, Fujian Provincial Key Laboratory of Haixia Applied Plant Systems Biology, College of Crop Science, Fujian Agriculture and Forestry University, Fuzhou 350002, China.
| | - Beenish Fakher
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Key Laboratory of Genetics, Breeding and Multiple Utilization of Crops, Ministry of Education, Fujian Provincial Key Laboratory of Haixia Applied Plant Systems Biology, College of Crop Science, Fujian Agriculture and Forestry University, Fuzhou 350002, China.
| | | | - Veena Pande
- Department of Biotechnology, Kumaon University Bhimtal Campus, Bhimtal 263136, India.
| | - Zakwan Ahmed
- Defence Institute of Bio-Energy Research, Goraparao, Haldwani 263139, India.
| | - Yuan Qin
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Key Laboratory of Genetics, Breeding and Multiple Utilization of Crops, Ministry of Education, Fujian Provincial Key Laboratory of Haixia Applied Plant Systems Biology, College of Crop Science, Fujian Agriculture and Forestry University, Fuzhou 350002, China.
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Guangxi Key Lab of Sugarcane Biology, College of Agriculture, Guangxi University, Nanning 530004, China.
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