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Zhang L, Wang Y, Yue M, Jiang L, Zhang N, Luo Y, Chen Q, Zhang Y, Wang Y, Li M, Zhang Y, Lin Y, Tang H. FaMYB5 Interacts with FaBBX24 to Regulate Anthocyanin and Proanthocyanidin Biosynthesis in Strawberry ( Fragaria × ananassa). Int J Mol Sci 2023; 24:12185. [PMID: 37569565 PMCID: PMC10418308 DOI: 10.3390/ijms241512185] [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: 07/05/2023] [Revised: 07/27/2023] [Accepted: 07/28/2023] [Indexed: 08/13/2023] Open
Abstract
MYB and BBX transcription factors play important roles in flavonoid biosynthesis. Here, we obtained transgenic woodland strawberry with stable overexpression of FaMYB5, demonstrating that FaMYB5 can increase anthocyanin and proanthocyanidin content in roots, stems and leaves of woodland strawberry. In addition, bimolecular fluorescence complementation assays and yeast two-hybridization demonstrated that the N-terminal (1-99aa) of FaBBX24 interacts with FaMYB5. Transient co-expression of FaBBX24 and FaMYB5 in cultivated strawberry 'Xiaobai' showed that co-expression strongly promoted the expression of F3'H, 4CL-2, TT12, AHA10 and ANR and then increased the content of anthocyanin and proanthocyanidin in strawberry fruits. We also determined that FaBBX24 is also a positive regulator of anthocyanin and proanthocyanidin biosynthesis in strawberry. The results reveal a novel mechanism by which the FaMYB5-FaBBX24 module collaboratively regulates anthocyanin and proanthocyanidin in strawberry fruit.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | | | | | - Haoru Tang
- College of Horticulture, Sichuan Agricultural University, Chengdu 611130, China; (L.Z.); (Y.W.); (M.Y.); (L.J.); (N.Z.); (Y.L.); (Q.C.); (Y.Z.); (Y.W.); (M.L.); (Y.Z.); (Y.L.)
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2
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Chang Y, Sun H, Liu S, He Y, Zhao S, Wang J, Wang T, Zhang J, Gao J, Yang Q, Li M, Zhao X. Identification of BBX gene family and its function in the regulation of microtuber formation in yam. BMC Genomics 2023; 24:354. [PMID: 37365511 DOI: 10.1186/s12864-023-09406-1] [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: 01/18/2023] [Accepted: 05/24/2023] [Indexed: 06/28/2023] Open
Abstract
BBX proteins play important roles in all of the major light-regulated developmental processes. However, no systematic analysis of BBX gene family regarding the regulation of photoperiodic microtuber formation has been previously performed in yam. In this study, a systematic analysis on the BBX gene family was conducted in three yam species, with the results, indicating that this gene plays a role in regulating photoperiodic microtuber formation. These analyses included identification the BBX gene family in three yam species, their evolutionary relationships, conserved domains, motifs, gene structure, cis-acting elements, and expressional patterns. Based on these analyses, DoBBX2/DoCOL5 and DoBBX8/DoCOL8 showing the most opposite pattern of expression during microtuber formation were selected as candidate genes for further investigation. Gene expression analysis showed DoBBX2/DoCOL5 and DoBBX8/DoCOL8 were highest expressed in leaves and exhibited photoperiod responsive expression patterns. Besides, the overexpression of DoBBX2/DoCOL5 and DoBBX8/DoCOL8 in potato accelerated tuber formation under short-day (SD) conditions, whereas only the overexpression of DoBBX8/DoCOL8 enhanced the accelerating effect of dark conditions on tuber induction. Tuber number was increased in DoBBX8/DoCOL8 overexpressing plants under dark, as well as in DoBBX2/DoCOL5 overexpressing plants under SD. Overall, the data generated in this study may form the basis of future functional characterizations of BBX genes in yam, especially regarding their regulation of microtuber formation via the photoperiodic response pathway.
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Affiliation(s)
- Yingying Chang
- College of Life Sciences, Henan Normal University, Xinxiang, 453007, China
| | - Haoyuan Sun
- College of Life Sciences, Henan Normal University, Xinxiang, 453007, China
| | - Shiyu Liu
- College of Life Sciences, Henan Normal University, Xinxiang, 453007, China
| | - Yulong He
- College of Life Sciences, Henan Normal University, Xinxiang, 453007, China
| | - Shanshan Zhao
- College of Life Sciences, Henan Normal University, Xinxiang, 453007, China
| | - Jiage Wang
- College of Life Sciences, Henan Normal University, Xinxiang, 453007, China
| | - Tianle Wang
- College of Life Sciences, Henan Normal University, Xinxiang, 453007, China
- Engineering Technology Research Center of Nursing and Utilization of Genuine Chinese Crude Drugs in Henan Province / Engineering Laboratory of Green Medicinal Material Biotechnology of Henan Province, Xinxiang, 453007, China
| | - Jiangli Zhang
- College of Life Sciences, Henan Normal University, Xinxiang, 453007, China
- Engineering Technology Research Center of Nursing and Utilization of Genuine Chinese Crude Drugs in Henan Province / Engineering Laboratory of Green Medicinal Material Biotechnology of Henan Province, Xinxiang, 453007, China
| | - Jin Gao
- College of Life Sciences, Henan Normal University, Xinxiang, 453007, China
- Henan International Joint Laboratory of Agricultural Microbial Ecology and Technology, Xinxiang, 453007, China
| | - Qingxiang Yang
- College of Life Sciences, Henan Normal University, Xinxiang, 453007, China
- Henan International Joint Laboratory of Agricultural Microbial Ecology and Technology, Xinxiang, 453007, China
| | - Mingjun Li
- College of Life Sciences, Henan Normal University, Xinxiang, 453007, China.
- Engineering Technology Research Center of Nursing and Utilization of Genuine Chinese Crude Drugs in Henan Province / Engineering Laboratory of Green Medicinal Material Biotechnology of Henan Province, Xinxiang, 453007, China.
| | - Xiting Zhao
- College of Life Sciences, Henan Normal University, Xinxiang, 453007, China.
- Engineering Technology Research Center of Nursing and Utilization of Genuine Chinese Crude Drugs in Henan Province / Engineering Laboratory of Green Medicinal Material Biotechnology of Henan Province, Xinxiang, 453007, China.
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3
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Liu Y, Tang L, Wang Y, Zhang L, Xu S, Wang X, He W, Zhang Y, Lin Y, Wang Y, Li M, Wang X, Zhang Y, Luo Y, Chen Q, Tang H. The blue light signal transduction module FaCRY1-FaCOP1-FaHY5 regulates anthocyanin accumulation in cultivated strawberry. FRONTIERS IN PLANT SCIENCE 2023; 14:1144273. [PMID: 37360713 PMCID: PMC10289005 DOI: 10.3389/fpls.2023.1144273] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/14/2023] [Accepted: 05/23/2023] [Indexed: 06/28/2023]
Abstract
Anthocyanins have important physiological functions and are beneficial to the improvement of fruit quality in strawberry. Light is important for anthocyanin biosynthesis, and specific light quality was identified to promote anthocyanin accumulation in many fruits. However, research on the molecular mechanisms of anthocyanin accumulation regulated by light quality in strawberry remains limited. Here we described the effects of red- and blue-light irradiation on anthocyanin accumulation in strawberry. The results showed that blue light, rather than red light, could lead to the rapid accumulation of anthocyanins after exposure to light for 48 hours. The transcriptional levels of anthocyanin structural and regulatory genes displayed similar trend to the anthocyanin content. To investigate the mechanism of blue light-induced anthocyanin accumulation, the homologs of Arabidopsis blue light signal transduction components, including the blue light photoreceptor FaCRY1, an E3 ubiquitin ligase FaCOP1 and light-responsive factor FaHY5, were cloned from the strawberry cultivar 'Benihoppe'. The protein-protein interaction of FaCRY1-FaCOP1-FaHY5 was revealed by yeast two-hybrid and fluorescence signal assays. Functional complementation analysis showed that overexpression of either FaCOP1 or FaHY5 restored the anthocyanin content and hypocotyl length in corresponding Arabidopsis mutants under blue light. Moreover, dual-luciferase assays showed that FaHY5 could increase the activity of FaRAP (anthocyanin transport gene) promoter and that this function relied on other, likely B-box protein FaBBX22, factors. The overexpression of FaHY5-VP16 (chimeric activator form of FaHY5) and FaBBX22 promoted the accumulation of anthocyanins in transgenic strawberry plants. Further, transcriptomic profiling indicated that the genes involved in the phenylpropanoid biosynthesis pathway were enriched in both FaHY5-VP16-OX and FaBBX22-OX strawberry plants. In summary, our findings provide insights into a mechanism involving the regulation of blue light-induced anthocyanin accumulation via a FaCRY1-FaCOP1-FaHY5 signal transduction module in strawberry.
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Affiliation(s)
- Yongqiang Liu
- College of Horticulture, Sichuan Agricultural University, Chengdu, China
- Institute of Pomology and Olericulture, Sichuan Agricultural University, Chengdu, China
| | - Li Tang
- College of Horticulture, Sichuan Agricultural University, Chengdu, China
| | - Yiping Wang
- College of Horticulture, Sichuan Agricultural University, Chengdu, China
| | - Lianxi Zhang
- College of Horticulture, Sichuan Agricultural University, Chengdu, China
| | - Shiqiong Xu
- College of Horticulture, Sichuan Agricultural University, Chengdu, China
| | - Xiao Wang
- College of Horticulture, Sichuan Agricultural University, Chengdu, China
| | - Wen He
- Institute of Pomology and Olericulture, Sichuan Agricultural University, Chengdu, China
| | - Yunting Zhang
- Institute of Pomology and Olericulture, Sichuan Agricultural University, Chengdu, China
| | - Yuanxiu Lin
- Institute of Pomology and Olericulture, Sichuan Agricultural University, Chengdu, China
| | - Yan Wang
- Institute of Pomology and Olericulture, Sichuan Agricultural University, Chengdu, China
| | - Mengyao Li
- College of Horticulture, Sichuan Agricultural University, Chengdu, China
| | - Xiaorong Wang
- Institute of Pomology and Olericulture, Sichuan Agricultural University, Chengdu, China
| | - Yong Zhang
- College of Horticulture, Sichuan Agricultural University, Chengdu, China
| | - Ya Luo
- College of Horticulture, Sichuan Agricultural University, Chengdu, China
| | - Qing Chen
- College of Horticulture, Sichuan Agricultural University, Chengdu, China
| | - Haoru Tang
- College of Horticulture, Sichuan Agricultural University, Chengdu, China
- Institute of Pomology and Olericulture, Sichuan Agricultural University, Chengdu, China
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He W, Luo L, Xie R, Chai J, Wang H, Wang Y, Chen Q, Wu Z, Yang S, Li M, Lin Y, Zhang Y, Luo Y, Zhang Y, Tang H, Wang X. Genome-Wide Identification and Functional Analysis of the AP2/ERF Transcription Factor Family in Citrus Rootstock under Waterlogging Stress. Int J Mol Sci 2023; 24:ijms24108989. [PMID: 37240335 DOI: 10.3390/ijms24108989] [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: 04/11/2023] [Revised: 05/03/2023] [Accepted: 05/16/2023] [Indexed: 05/28/2023] Open
Abstract
Citrus plants are sensitive to waterlogging, and the roots are the first plant organ affected by hypoxic stress. The AP2/ERF (APETALA2/ethylene-responsive element binding factors) can modulate plant growth and development. However, the information on AP2/ERF genes in citrus rootstock and their involvement in waterlogging conditions is limited. Previously, a rootstock cultivar, Citrus junos cv. Pujiang Xiangcheng was found to be highly tolerant to waterlogging stress. In this study, a total of 119 AP2/ERF members were identified in the C. junos genome. Conserved motif and gene structure analyses indicated the evolutionary conservation of PjAP2/ERFs. Syntenic gene analysis revealed 22 collinearity pairs among the 119 PjAP2/ERFs. The expression profiles under waterlogging stress showed differential expression of PjAP2/ERFs, of which, PjERF13 was highly expressed in both root and leaf. Furthermore, the heterologous expression of PjERF13 significantly enhanced the tolerance of transgenic tobacco to waterlogging stress. The overexpression of PjERF13 decreased the oxidative damage in the transgenic plants by reducing the H2O2 and MDA contents and increasing the antioxidant enzyme activities in the root and leaf. Overall, the current study provided basic information on the AP2/ERF family in the citrus rootstock and uncovered their potential function in positively regulating the waterlogging stress response.
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Affiliation(s)
- Wen He
- College of Horticulture, Sichuan Agricultural University, Chengdu 611130, China
| | - Liang Luo
- College of Horticulture, Sichuan Agricultural University, Chengdu 611130, China
| | - Rui Xie
- College of Horticulture, Sichuan Agricultural University, Chengdu 611130, China
| | - Jiufeng Chai
- College of Horticulture, Sichuan Agricultural University, Chengdu 611130, China
| | - Hao Wang
- College of Horticulture, Sichuan Agricultural University, Chengdu 611130, China
| | - Yan Wang
- College of Horticulture, Sichuan Agricultural University, Chengdu 611130, China
| | - Qing Chen
- College of Horticulture, Sichuan Agricultural University, Chengdu 611130, China
| | - Zhiwei Wu
- College of Horticulture, Sichuan Agricultural University, Chengdu 611130, China
| | - Shaofeng Yang
- College of Horticulture, Sichuan Agricultural University, Chengdu 611130, China
| | - Mengyao Li
- College of Horticulture, Sichuan Agricultural University, Chengdu 611130, China
| | - Yuanxiu Lin
- College of Horticulture, Sichuan Agricultural University, Chengdu 611130, China
| | - Yunting Zhang
- College of Horticulture, Sichuan Agricultural University, Chengdu 611130, China
| | - Ya Luo
- College of Horticulture, Sichuan Agricultural University, Chengdu 611130, China
| | - Yong Zhang
- College of Horticulture, Sichuan Agricultural University, Chengdu 611130, China
| | - Haoru Tang
- College of Horticulture, Sichuan Agricultural University, Chengdu 611130, China
| | - Xiaorong Wang
- College of Horticulture, Sichuan Agricultural University, Chengdu 611130, China
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Shan B, Bao G, Shi T, Zhai L, Bian S, Li X. Genome-wide identification of BBX gene family and their expression patterns under salt stress in soybean. BMC Genomics 2022; 23:820. [PMID: 36510141 PMCID: PMC9743715 DOI: 10.1186/s12864-022-09068-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Accepted: 12/05/2022] [Indexed: 12/14/2022] Open
Abstract
BACKGROUND BBX genes are key players in the regulation of various developmental processes and stress responses, which have been identified and functionally characterized in many plant species. However, our understanding of BBX family was greatly limited in soybean. RESULTS In this study, 59 BBX genes were identified and characterized in soybean, which can be phylogenetically classified into 5 groups. GmBBXs showed diverse gene structures and motif compositions among the groups and similar within each group. Noticeably, synteny analysis suggested that segmental duplication contributed to the expansion of GmBBX family. Moreover, our RNA-Seq data indicated that 59 GmBBXs showed different transcript profiling under salt stress, and qRT-PCR analysis confirmed their expression patterns. Among them, 22 GmBBXs were transcriptionally altered with more than two-fold changes by salt stress, supporting that GmBBXs play important roles in soybean tolerance to salt stress. Additionally, Computational assay suggested that GmBBXs might potentially interact with GmGI3, GmTOE1b, GmCOP1, GmCHI and GmCRY, while eight types of transcription factors showed potentials to bind the promoter regions of GmBBX genes. CONCLUSIONS Fifty-nine BBX genes were identified and characterized in soybean, and their expression patterns under salt stress and computational assays suggested their functional roles in response to salt stress. These findings will contribute to future research in regard to functions and regulatory mechanisms of soybean BBX genes in response to salt stress.
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Affiliation(s)
- Binghui Shan
- grid.64924.3d0000 0004 1760 5735College of Plant Science, Jilin University, Changchun, China
| | - Guohua Bao
- grid.64924.3d0000 0004 1760 5735College of Plant Science, Jilin University, Changchun, China
| | - Tianran Shi
- grid.64924.3d0000 0004 1760 5735College of Plant Science, Jilin University, Changchun, China
| | - Lulu Zhai
- grid.64924.3d0000 0004 1760 5735College of Plant Science, Jilin University, Changchun, China
| | - Shaomin Bian
- grid.64924.3d0000 0004 1760 5735College of Plant Science, Jilin University, Changchun, China
| | - Xuyan Li
- grid.64924.3d0000 0004 1760 5735College of Plant Science, Jilin University, Changchun, China
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Dong J, Zhao C, Zhang J, Ren Y, He L, Tang R, Wang W, Jia X. The sweet potato B-box transcription factor gene IbBBX28 negatively regulates drought tolerance in transgenic Arabidopsis. Front Genet 2022; 13:1077958. [PMID: 36523761 PMCID: PMC9744756 DOI: 10.3389/fgene.2022.1077958] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2022] [Accepted: 11/14/2022] [Indexed: 07/30/2023] Open
Abstract
B-box (BBX) which are a class of zinc finger transcription factors, play an important role in regulating of photoperiod, photomorphogenesis, and biotic and abiotic stresses in plants. However, there are few studies on the involvement of BBX transcription factors in response to abiotic stresses in sweet potato. In this paper, we cloned the DNA and promoter sequences of IbBBX28. There was one B-box conserved domain in IbBBX28, and the expression of IbBBX28 was induced under drought stress. Under drought stress, compared to wild type Arabidopsis, the protective enzyme activities (SOD, POD, and CAT) were all decreased in IbBBX28-overexpression Arabidopsis but increased in the mutant line bbx28, while the MDA content was increased in the IbBBX28-overexpression Arabidopsis and decreased in the bbx28. Moreover, the expression levels of the resistance-related genes showed the same trend as the protective enzyme activities. These results showed that IbBBX28 negatively regulates drought tolerance in transgenic Arabidopsis. Additionally, the yeast two-hybrid and BiFC assays verified that IbBBX28 interacted with IbHOX11 and IbZMAT2. The above results provide important clues for further studies on the role of IbBBX28 in regulating the stress response in sweet potato.
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Affiliation(s)
- Jingjing Dong
- College of Agriculture, Shanxi Agricultural University, Taigu, Shanxi, China
| | - Cailiang Zhao
- College of Agriculture, Shanxi Agricultural University, Taigu, Shanxi, China
| | - Jie Zhang
- College of Agriculture, Shanxi Agricultural University, Taigu, Shanxi, China
| | - Yuchao Ren
- College of Agriculture, Shanxi Agricultural University, Taigu, Shanxi, China
| | - Liheng He
- College of Agriculture, Shanxi Agricultural University, Taigu, Shanxi, China
| | - Ruimin Tang
- College of Life Sciences, Shanxi Agricultural University, Taigu, Shanxi, China
| | - Wenbin Wang
- College of Life Sciences, Shanxi Agricultural University, Taigu, Shanxi, China
| | - Xiaoyun Jia
- College of Life Sciences, Shanxi Agricultural University, Taigu, Shanxi, China
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Genome-Wide Identification of Strawberry C2H2-ZFP C1-2i Subclass and the Potential Function of FaZAT10 in Abiotic Stress. Int J Mol Sci 2022; 23:ijms232113079. [PMID: 36361867 PMCID: PMC9654774 DOI: 10.3390/ijms232113079] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Revised: 10/25/2022] [Accepted: 10/26/2022] [Indexed: 11/17/2022] Open
Abstract
C2H2-type zinc finger proteins (C2H2-ZFPs) play a key role in various plant biological processes and responses to environmental stresses. In Arabidopsisthaliana, C2H2-ZFP members with two zinc finger domains have been well-characterized in response to abiotic stresses. To date, the functions of these genes in strawberries are still uncharacterized. Here, 126 C2H2-ZFPs in cultivated strawberry were firstly identified using the recently sequenced Fragaria × ananassa genome. Among these C2H2-ZFPs, 46 members containing two zinc finger domains in cultivated strawberry were further identified as the C1-2i subclass. These genes were unevenly distributed on 21 chromosomes and classified into five groups according to the phylogenetic relationship, with similar physicochemical properties and motif compositions in the same group. Analyses of conserved domains and gene structures indicated the evolutionary conservation of the C1-2i subclass. A Ka/Ks analysis indicated that the C1-2i members were subjected to purifying selection during evolution. Furthermore, FaZAT10, a typical C2H2-ZFP, was isolated. FaZAT10 was expressed the highest in roots, and it was induced by drought, salt, low-temperature, ABA, and MeJA treatments. It was localized in the nucleus and showed no transactivation activity in yeast cells. Overall, these results provide useful information for enriching the analysis of the ZFPs gene family in strawberry, and they provide support for revealing the mechanism of FaZAT10 in the regulatory network of abiotic stress.
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Liu Y, Ye Y, Wang Y, Jiang L, Yue M, Tang L, Jin M, Zhang Y, Lin Y, Tang H. B-Box Transcription Factor FaBBX22 Promotes Light-Induced Anthocyanin Accumulation in Strawberry (Fragaria × ananassa). Int J Mol Sci 2022; 23:ijms23147757. [PMID: 35887106 PMCID: PMC9316111 DOI: 10.3390/ijms23147757] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2022] [Revised: 07/04/2022] [Accepted: 07/08/2022] [Indexed: 02/06/2023] Open
Abstract
B-box transcription factors (TFs) play a vital role in light-induced anthocyanin accumulation. Here, the FaBBX22 gene encoding 287 amino acids B-box TF was isolated from the cultivated strawberry variety ‘Benihoppe’ and characterized functionally. The expression analysis showed that FaBBX22 was expressed in the roots, stems, leaves, flowers and fruits, and its transcription level was upregulated under the red- or blue-light irradiation. FaBBX22 was localized in the nucleus and showed trans-acting activity in yeast cells. Ectopic overexpression of FaBBX22 in Arabidopsis enhanced the accumulation of anthocyanin. Additionally, we obtained transgenic strawberry calli that overexpressed the FaBBX22 gene, and strawberry calli coloration assays showed that FaBBX22 increased anthocyanin accumulation by upregulating the expression of anthocyanin biosynthetic genes (FaPAL, FaANS, FaF3′H, FaUFGT1) and transport gene FaRAP in a light-dependent manner. Yeast two-hybrid (Y2H) and bimolecular fluorescence complementation assays indicated that FaBBX22 interacted with FaHY5. Furthermore, mutation of the 70th Asp residue in FaBBX22 protein to an Ala residue disrupted the interaction between FaBBX22 and FaHY5. Further, a transient expression assay demonstrated that the co-expression of FaBBX22 and FaHY5 could strongly promote anthocyanin accumulation in strawberry fruits. Collectively, these results revealed the positive regulatory role of FaBBX22 in light-induced anthocyanin accumulation.
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Affiliation(s)
- Yongqiang Liu
- College of Horticulture, Sichuan Agricultural University, Chengdu 611130, China; (Y.L.); (Y.Y.); (Y.W.); (L.J.); (M.Y.); (L.T.); (M.J.); (Y.Z.); (Y.L.)
| | - Yuntian Ye
- College of Horticulture, Sichuan Agricultural University, Chengdu 611130, China; (Y.L.); (Y.Y.); (Y.W.); (L.J.); (M.Y.); (L.T.); (M.J.); (Y.Z.); (Y.L.)
| | - Yiping Wang
- College of Horticulture, Sichuan Agricultural University, Chengdu 611130, China; (Y.L.); (Y.Y.); (Y.W.); (L.J.); (M.Y.); (L.T.); (M.J.); (Y.Z.); (Y.L.)
| | - Leiyu Jiang
- College of Horticulture, Sichuan Agricultural University, Chengdu 611130, China; (Y.L.); (Y.Y.); (Y.W.); (L.J.); (M.Y.); (L.T.); (M.J.); (Y.Z.); (Y.L.)
| | - Maolan Yue
- College of Horticulture, Sichuan Agricultural University, Chengdu 611130, China; (Y.L.); (Y.Y.); (Y.W.); (L.J.); (M.Y.); (L.T.); (M.J.); (Y.Z.); (Y.L.)
| | - Li Tang
- College of Horticulture, Sichuan Agricultural University, Chengdu 611130, China; (Y.L.); (Y.Y.); (Y.W.); (L.J.); (M.Y.); (L.T.); (M.J.); (Y.Z.); (Y.L.)
| | - Mingsongxue Jin
- College of Horticulture, Sichuan Agricultural University, Chengdu 611130, China; (Y.L.); (Y.Y.); (Y.W.); (L.J.); (M.Y.); (L.T.); (M.J.); (Y.Z.); (Y.L.)
| | - Yunting Zhang
- College of Horticulture, Sichuan Agricultural University, Chengdu 611130, China; (Y.L.); (Y.Y.); (Y.W.); (L.J.); (M.Y.); (L.T.); (M.J.); (Y.Z.); (Y.L.)
- Institute of Pomology and Olericulture, Sichuan Agricultural University, Chengdu 611130, China
| | - Yuanxiu Lin
- College of Horticulture, Sichuan Agricultural University, Chengdu 611130, China; (Y.L.); (Y.Y.); (Y.W.); (L.J.); (M.Y.); (L.T.); (M.J.); (Y.Z.); (Y.L.)
- Institute of Pomology and Olericulture, Sichuan Agricultural University, Chengdu 611130, China
| | - Haoru Tang
- College of Horticulture, Sichuan Agricultural University, Chengdu 611130, China; (Y.L.); (Y.Y.); (Y.W.); (L.J.); (M.Y.); (L.T.); (M.J.); (Y.Z.); (Y.L.)
- Institute of Pomology and Olericulture, Sichuan Agricultural University, Chengdu 611130, China
- Correspondence:
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Abstract
Cryptochrome 1 (CRY1), a main blue light receptor protein, plays a significant role in several biological processes. However, the expression patterns and function of CRY1 in strawberry have not been identified. Here, the expression profile of CRY1 in different tissues and developmental stages of strawberry fruit, and expression patterns response to abiotic stresses (low temperature, salt and drought) were analyzed. Its subcellular localization, interaction proteins and heterologous overexpression in tobacco were also investigated. The results showed that CRY1 was mainly expressed in leaves and fruits with an expression peak at the initial red stage in strawberry fruit. Abiotic stresses could significantly induce the expression of CRY1. The CRY1 protein was located in both nucleus and cytoplasm. Five proteins (CSN5a-like, JAZ5, eIF3G. NF-YC9, and NDUFB9) interacting with CRY1 were discovered. Genes related flowering times, such as HY5 and CO, in three overexpressed FaCRY1 tobacco lines, were significantly upregulated. Taken together, our results suggested CRY1 have a broad role in biological processes in strawberry.
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Genome-Wide Identification of the B-Box Gene Family and Expression Analysis Suggests Their Potential Role in Photoperiod-Mediated β-Carotene Accumulation in the Endocarp of Cucumber (Cucumis sativus L.) Fruit. Genes (Basel) 2022; 13:genes13040658. [PMID: 35456464 PMCID: PMC9031713 DOI: 10.3390/genes13040658] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2022] [Revised: 04/03/2022] [Accepted: 04/05/2022] [Indexed: 12/27/2022] Open
Abstract
Carotenoids are indispensable to plants and essential for human nutrition and health. Carotenoid contents are strongly influenced by light through light-responsive genes such as B-Box (BBX) genes. BBX proteins, a class of zinc-finger transcription factors, mediate many light-signaling pathways, leading to the biosynthesis of important metabolites in plants. However, the identification of the BBX gene family and expression analysis in response to photoperiod-mediated carotenoid accumulation in cucumber remains unexplored. We performed a genome-wide study and determined the expression of cucumber BBX genes (hereafter referred to as CsaBBXs genes) in the endocarp of Xishuangbanna cucumber fruit (a special type of cucumber accumulating a high level of β-carotene in the endocarp) using an RNA-seq analysis of plants previously subjected to two photoperiodic conditions. Here, 26 BBX family genes were identified in the cucumber genome and named serially CsaBBX1 through CsaBBX26. We characterized CsaBBX genes in terms of their phylogenetic relationships, exon-intron structures, cis-acting elements, and syntenic relationships with Arabidopsis thaliana (L.) Heynh. RNA-seq analysis revealed a varied expression of CsaBBX genes under photoperiod treatment. The analysis of CsaBBXs genes revealed a strong positive correlation between CsaBBX17 and carotenoid biosynthetic pathway genes (phytoene synthase, ζ-carotene desaturase, lycopene ε-cyclase, β-carotene hydroxylase-1), thus suggesting its involvement in β-carotene biosynthesis. Additionally, nine CsaBBX genes (CsaBBX 4, 5, 7, 9, 11, 13, 15, 17 and 22) showed a significant positive correlation with β-carotene content. The selected CsaBBX genes were verified by qRT-PCR and confirmed the validity of RNA-seq data. The results of this study established the genome-wide analysis of the cucumber BBX family and provide a framework for understanding their biological role in carotenoid accumulation and photoperiodic responses. Further investigations of CsaBBX genes are vital since they are promising candidate genes for the functional analysis of carotenoid biosynthesis and can provide genetic tools for the molecular breeding of carotenoids in plants.
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