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Liu J, Wang Y, Peng L, Chen M, Ye X, Li Y, Li Z, Wen Q, Zhu H. Genome-Wide Identification of the Cyclic Nucleotide-Gated Ion Channel Gene Family and Expression Profiles Under Low-Temperature Stress in Luffa cylindrica L. Int J Mol Sci 2024; 25:11330. [PMID: 39457112 DOI: 10.3390/ijms252011330] [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: 08/15/2024] [Revised: 10/11/2024] [Accepted: 10/16/2024] [Indexed: 10/28/2024] Open
Abstract
Cyclic nucleotide-gated ion channels (CNGCs) are cell membrane channel proteins for calcium ions. They have been reported to play important roles in survival and in the responses to environmental factors in various plants. However, little is known about the CNGC family and its functions in luffa (Luffa cylindrica L.). In this study, a bioinformatics-based method was used to identify members of the CNGC gene family in L. cylindrica. In total, 20 LcCNGCs were detected, and they were grouped into five subfamilies (I, II, Ⅲ, IV-a, and IV-b) in a phylogenetic analysis with CNGCs from Arabidopsis thaliana (20 AtCNGCs) and Momordica charantia (17 McCNGCs). The 20 LcCNGC genes were unevenly distributed on 11 of the 13 chromosomes in luffa, with none on Chromosomes 1 and 5. The members of each subfamily encoded proteins with highly conserved functional domains. An evolutionary analysis of CNGCs in luffa revealed three gene losses and a motif deletion. An examination of gene replication events during evolution indicated that two tandemly duplicated gene pairs were the primary driving force behind the evolution of the LcCNGC gene family. PlantCARE analyses of the LcCNGC promoter regions revealed various cis-regulatory elements, including those responsive to plant hormones (abscisic acid, methyl jasmonate, and salicylic acid) and abiotic stresses (light, drought, and low temperature). The presence of these cis-acting elements suggested that the encoded CNGC proteins may be involved in stress responses, as well as growth and development. Transcriptome sequencing (RNA-seq) analyses revealed tissue-specific expression patterns of LcCNGCs in various plant parts (roots, stems, leaves, flowers, and fruit) and the upregulation of some LcCNGCs under low-temperature stress. To confirm the accuracy of the RNA-seq data, 10 cold-responsive LcCNGC genes were selected for verification by quantitative real-time polymerase chain reaction (RT-qPCR) analysis. Under cold conditions, LcCNGC4 was highly upregulated (>50-fold increase in its transcript levels), and LcCNGC3, LcCNGC6, and LcCNGC13 were upregulated approximately 10-fold. Our findings provide new information about the evolution of the CNGC family in L. cylindrica and provide insights into the functions of the encoded CNGC proteins.
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Affiliation(s)
- Jianting Liu
- Fujian Key Laboratory of Vegetable Genetics and Breeding, Crops Research Institute, Fujian Academy of Agricultural Sciences, Fuzhou 350013, China
- Vegetable Research Center, Fujian Academy of Agricultural Sciences, Fuzhou 350013, China
| | - Yuqian Wang
- College of Horticulture, Fujian Agriculture and Forestry University, Fuzhou 350003, China
| | - Lijuan Peng
- College of Horticulture, Fujian Agriculture and Forestry University, Fuzhou 350003, China
| | - Mindong Chen
- Fujian Key Laboratory of Vegetable Genetics and Breeding, Crops Research Institute, Fujian Academy of Agricultural Sciences, Fuzhou 350013, China
- Vegetable Research Center, Fujian Academy of Agricultural Sciences, Fuzhou 350013, China
| | - Xinru Ye
- Fujian Key Laboratory of Vegetable Genetics and Breeding, Crops Research Institute, Fujian Academy of Agricultural Sciences, Fuzhou 350013, China
- Vegetable Research Center, Fujian Academy of Agricultural Sciences, Fuzhou 350013, China
| | - Yongping Li
- Fujian Key Laboratory of Vegetable Genetics and Breeding, Crops Research Institute, Fujian Academy of Agricultural Sciences, Fuzhou 350013, China
- Vegetable Research Center, Fujian Academy of Agricultural Sciences, Fuzhou 350013, China
| | - Zuliang Li
- Fujian Key Laboratory of Vegetable Genetics and Breeding, Crops Research Institute, Fujian Academy of Agricultural Sciences, Fuzhou 350013, China
- Vegetable Research Center, Fujian Academy of Agricultural Sciences, Fuzhou 350013, China
| | - Qingfang Wen
- Fujian Key Laboratory of Vegetable Genetics and Breeding, Crops Research Institute, Fujian Academy of Agricultural Sciences, Fuzhou 350013, China
- Vegetable Research Center, Fujian Academy of Agricultural Sciences, Fuzhou 350013, China
| | - Haisheng Zhu
- Fujian Key Laboratory of Vegetable Genetics and Breeding, Crops Research Institute, Fujian Academy of Agricultural Sciences, Fuzhou 350013, China
- Vegetable Research Center, Fujian Academy of Agricultural Sciences, Fuzhou 350013, China
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Jin S, Wei M, Wei Y, Jiang Z. Insights into Plant Sensory Mechanisms under Abiotic Stresses. PLANTS (BASEL, SWITZERLAND) 2024; 13:1907. [PMID: 39065434 PMCID: PMC11280238 DOI: 10.3390/plants13141907] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/22/2024] [Revised: 07/08/2024] [Accepted: 07/08/2024] [Indexed: 07/28/2024]
Abstract
As sessile organisms, plants cannot survive in harmful environments, such as those characterized by drought, flood, heat, cold, nutrient deficiency, and salt or toxic metal stress. These stressors impair plant growth and development, leading to decreased crop productivity. To induce an appropriate response to abiotic stresses, plants must sense the pertinent stressor at an early stage to initiate precise signal transduction. Here, we provide an overview of recent progress in our understanding of the molecular mechanisms underlying plant abiotic stress sensing. Numerous biomolecules have been found to participate in the process of abiotic stress sensing and function as abiotic stress sensors in plants. Based on their molecular structure, these biomolecules can be divided into four groups: Ca2+-permeable channels, receptor-like kinases (RLKs), sphingolipids, and other proteins. This improved knowledge can be used to identify key molecular targets for engineering stress-resilient crops in the field.
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Affiliation(s)
- Songsong Jin
- College of Life Sciences and Oceanography, Shenzhen University, Shenzhen 518060, China; (S.J.); (M.W.); (Y.W.)
- College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China
| | - Mengting Wei
- College of Life Sciences and Oceanography, Shenzhen University, Shenzhen 518060, China; (S.J.); (M.W.); (Y.W.)
| | - Yunmin Wei
- College of Life Sciences and Oceanography, Shenzhen University, Shenzhen 518060, China; (S.J.); (M.W.); (Y.W.)
- College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China
| | - Zhonghao Jiang
- College of Life Sciences and Oceanography, Shenzhen University, Shenzhen 518060, China; (S.J.); (M.W.); (Y.W.)
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Kim EY, Kim MH, Yun SD, Lee SK, Kim EJ, Kim JH, Oh SA, Kim YJ, Jung KH, Park SK. Redundant role of OsCNGC4 and OsCNGC5 encoding cyclic nucleotide-gated channels in rice pollen germination and tube growth. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2024; 208:108522. [PMID: 38493663 DOI: 10.1016/j.plaphy.2024.108522] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/10/2024] [Accepted: 03/09/2024] [Indexed: 03/19/2024]
Abstract
In staple crops, such as rice (Oryza sativa L.), pollen plays a crucial role in seed production. However, the molecular mechanisms underlying rice pollen germination and tube growth remain underexplored. Notably, we recently uncovered the redundant expression and mutual interaction of two rice genes encoding cyclic nucleotide-gated channels (CNGCs), OsCNGC4 and OsCNGC5, in mature pollen. Building on these findings, the current study focused on clarifying the functional roles of these two genes in pollen germination and tube growth. To overcome functional redundancy, we produced gene-edited rice plants with mutations in both genes using the CRISPR-Cas9 system. The resulting homozygous OsCNGC4 and OsCNGC5 gene-edited mutants (oscngc4/5) exhibited significantly lower pollen germination rates than the wild type (WT), along with severely reduced fertility. Transcriptome analysis of the double oscngc4/5 mutant revealed downregulation of genes related to receptor kinases, transporters, and cell wall metabolism. To identify the direct regulators of OsCNGC4, which form a heterodimer with OsCNGC5, we screened a yeast two-hybrid library containing rice cDNAs from mature anthers. Subsequently, we identified two calmodulin isoforms (CaM1-1 and CaM1-2), NETWORKED 2 A (NET2A), and proline-rich extension-like receptor kinase 13 (PERK13) proteins as interactors of OsCNGC4, suggesting its roles in regulating Ca2+ channel activity and F-actin organization. Overall, our results suggest that OsCNGC4 and OsCNGC5 may play critical roles in pollen germination and elongation by regulating the Ca2+ gradient in growing pollen tubes.
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Affiliation(s)
- Eun Young Kim
- School of Applied Biosciences, Kyungpook National University, Daegu, 41566, Republic of Korea
| | - Myung-Hee Kim
- School of Applied Biosciences, Kyungpook National University, Daegu, 41566, Republic of Korea; Genomics Division, Department of Agricultural Bio-Resources, National Institute of Agricultural Sciences, Rural Development Administration, Wansan-gu, Jeonju, 54874, Republic of Korea
| | - Sang Dae Yun
- School of Applied Biosciences, Kyungpook National University, Daegu, 41566, Republic of Korea
| | - Su-Kyoung Lee
- Graduate School of Green Bio-Science & Crop Biotech Institute, Kyung Hee University, Yongin, 17104, Republic of Korea
| | - Eui-Jung Kim
- Graduate School of Green Bio-Science & Crop Biotech Institute, Kyung Hee University, Yongin, 17104, Republic of Korea
| | - Ji-Hyun Kim
- Department of Life Science and Environmental Biochemistry, Pusan National University, Miryang, 50463, Republic of Korea
| | - Sung-Aeong Oh
- School of Applied Biosciences, Kyungpook National University, Daegu, 41566, Republic of Korea
| | - Yu-Jin Kim
- Department of Life Science and Environmental Biochemistry, Pusan National University, Miryang, 50463, Republic of Korea
| | - Ki-Hong Jung
- Graduate School of Green Bio-Science & Crop Biotech Institute, Kyung Hee University, Yongin, 17104, Republic of Korea.
| | - Soon Ki Park
- School of Applied Biosciences, Kyungpook National University, Daegu, 41566, Republic of Korea.
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Wang X, Wu F, Zhang J, Bao Y, Wang N, Dou G, Meng D, Wang X, Li J, Shi Y. Identification of the CNGC Gene Family in Rice and Mining of Alleles for Application in Rice Improvement. PLANTS (BASEL, SWITZERLAND) 2023; 12:4089. [PMID: 38140416 PMCID: PMC10747058 DOI: 10.3390/plants12244089] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Revised: 12/02/2023] [Accepted: 12/05/2023] [Indexed: 12/24/2023]
Abstract
Cyclic nucleotide-gated ion channel (CNGC) gene regulation plays important roles in plant immune and abiotic stress response. Here, we identified 16 CNGC genes in rice (Oryza sativa). Then, we analyzed their chromosomal location, physicochemical properties, subcellular localization, gene functional interaction network, cis-acting elements, phylogenetic relationships, collinearity, expression in tissues under normal conditions and abiotic stresses, and geng-cds-haplotype (gcHap) diversity in 3010 gcHaps. As a result, OsCNGC3 (Os06g0527300) was identified as a gene different from previous report, and OsCNGC genes were found to play important roles in rice population differentiation and rice improvement. Our results revealed their very strong differentiation between subspecies and populations, important roles in response to abiotic stresses, as well as strong genetic bottleneck effects and artificial selection of gcHap diversity in the modern breeding process of Xian (indica) and Geng (japonica) populations. The results also suggested that natural variations in most rice CNGC loci are potentially valuable for improving rice productivity and tolerance to abiotic stresses. The favorable alleles at the CNGC loci should be explored to facilitate their application in future rice improvement.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | - Yingyao Shi
- College of Agronomy, Anhui Agricultural University, Hefei 230036, China; (X.W.); (F.W.); (J.Z.); (Y.B.); (N.W.); (G.D.); (D.M.) (X.W.); (J.L.)
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Zhang N, Lin H, Zeng Q, Fu D, Gao X, Wu J, Feng X, Wang Q, Ling Q, Wu Z. Genome-wide identification and expression analysis of the cyclic nucleotide-gated ion channel (CNGC) gene family in Saccharum spontaneum. BMC Genomics 2023; 24:281. [PMID: 37231370 DOI: 10.1186/s12864-023-09307-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2022] [Accepted: 04/12/2023] [Indexed: 05/27/2023] Open
Abstract
BACKGROUND Cyclic nucleotide-gated ion channels (CNGCs) are nonselective cation channels that are ubiquitous in eukaryotic organisms. As Ca2+ channels, some CNGCs have also proven to be K+-permeable and involved in plant development and responses to environmental stimuli. Sugarcane is an important sugar and energy crop worldwide. However, reports on CNGC genes in sugarcane are limited. RESULTS In this study, 16 CNGC genes and their alleles were identified from Saccharum spontaneum and classified into 5 groups based on phylogenetic analysis. Investigation of gene duplication and syntenic relationships between S. spontaneum and both rice and Arabidopsis demonstrated that the CNGC gene family in S. spontaneum expanded primarily by segmental duplication events. Many SsCNGCs showed variable expression during growth and development as well as in tissues, suggesting functional divergence. Light-responsive cis-acting elements were discovered in the promoters of all the identified SsCNGCs, and the expression of most of the SsCNGCs showed a diurnal rhythm. In sugarcane, the expression of some SsCNGCs was regulated by low-K+ treatment. Notably, SsCNGC13 may be involved in both sugarcane development and its response to environmental stimuli, including response to low-K+ stress. CONCLUSION This study identified the CNGC genes in S. spontaneum and provided insights into the transcriptional regulation of these SsCNGCs during development, circadian rhythm and under low-K+ stress. These findings lay a theoretical foundation for future investigations of the CNGC gene family in sugarcane.
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Affiliation(s)
- Nannan Zhang
- Guangdong Sugarcane Genetic Improvement Engineering Center, Institute of Nanfan & Seed Industry, Guangdong Academy of Sciences, Guangzhou, 510316, China
| | - Huanzhang Lin
- Guangdong Sugarcane Genetic Improvement Engineering Center, Institute of Nanfan & Seed Industry, Guangdong Academy of Sciences, Guangzhou, 510316, China
- Zhongkai University of Agriculture and Engineering, Guangzhou, 510225, China
| | - Qiaoying Zeng
- Guangdong Sugarcane Genetic Improvement Engineering Center, Institute of Nanfan & Seed Industry, Guangdong Academy of Sciences, Guangzhou, 510316, China
| | - Danwen Fu
- Guangdong Sugarcane Genetic Improvement Engineering Center, Institute of Nanfan & Seed Industry, Guangdong Academy of Sciences, Guangzhou, 510316, China
| | - Xiaoning Gao
- Guangdong Sugarcane Genetic Improvement Engineering Center, Institute of Nanfan & Seed Industry, Guangdong Academy of Sciences, Guangzhou, 510316, China
| | - Jiayun Wu
- Guangdong Sugarcane Genetic Improvement Engineering Center, Institute of Nanfan & Seed Industry, Guangdong Academy of Sciences, Guangzhou, 510316, China
| | - Xiaomin Feng
- Rice Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou, 510640, China
| | - Qinnan Wang
- Guangdong Sugarcane Genetic Improvement Engineering Center, Institute of Nanfan & Seed Industry, Guangdong Academy of Sciences, Guangzhou, 510316, China
| | - Qiuping Ling
- Guangdong Sugarcane Genetic Improvement Engineering Center, Institute of Nanfan & Seed Industry, Guangdong Academy of Sciences, Guangzhou, 510316, China.
| | - Zilin Wu
- Guangdong Sugarcane Genetic Improvement Engineering Center, Institute of Nanfan & Seed Industry, Guangdong Academy of Sciences, Guangzhou, 510316, China.
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