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Pang Y, Cao L, Ye F, Ma C, Liang X, Song Y, Lu X. Identification of the Maize PP2C Gene Family and Functional Studies on the Role of ZmPP2C15 in Drought Tolerance. Plants (Basel) 2024; 13:340. [PMID: 38337873 PMCID: PMC10856965 DOI: 10.3390/plants13030340] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/14/2023] [Revised: 01/13/2024] [Accepted: 01/17/2024] [Indexed: 02/12/2024]
Abstract
The protein phosphatase PP2C plays an important role in plant responses to stress. Therefore, the identification of maize PP2C genes that respond to drought stress is particularly important for the improvement and creation of new drought-resistant assortments of maize. In this study, we identified 102 ZmPP2C genes in maize at the genome-wide level. We analyzed the physicochemical properties of 102 ZmPP2Cs and constructed a phylogenetic tree with Arabidopsis. By analyzing the gene structure, conserved protein motifs, and synteny, the ZmPP2Cs were found to be strongly conserved during evolution. Sixteen core genes involved in drought stress and rewatering were screened using gene co-expression network mapping and expression profiling. The qRT-PCR results showed 16 genes were induced by abscisic acid (ABA), drought, and NaCl treatments. Notably, ZmPP2C15 exhibited a substantial expression difference. Through genetic transformation, we overexpressed ZmPP2C15 and generated the CRISPR/Cas9 knockout maize mutant zmpp2c15. Overexpressing ZmPP2C15 in Arabidopsis under drought stress enhanced growth and survival compared with WT plants. The leaves exhibited heightened superoxide dismutase (SOD), peroxidase (POD), ascorbate peroxidase (APX), and catalase (CAT) activities, elevated proline (Pro) content, and reduced malondialdehyde (MDA) content. Conversely, zmpp2c15 mutant plants displayed severe leaf dryness, curling, and wilting under drought stress. Their leaf activities of SOD, POD, APX, and CAT were lower than those in B104, while MDA was higher. This suggests that ZmPP2C15 positively regulates drought tolerance in maize by affecting the antioxidant enzyme activity and osmoregulatory substance content. Subcellular localization revealed that ZmPP2C15 was localized in the nucleus and cytoplasm. Yeast two-hybrid (Y2H) and bimolecular fluorescence complementation (BiFC) experiments demonstrated ZmPP2C15's interaction with ZmWIN1, ZmADT2, ZmsodC, Zmcab, and ZmLHC2. These findings establish a foundation for understanding maize PP2C gene functions, offering genetic resources and insights for molecular design breeding for drought tolerance.
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Affiliation(s)
- Yunyun Pang
- Grain Crops Research Institute, Henan Academy of Agricultural Sciences, Postgraduate T&R Base of Zhengzhou University, Zhengzhou 450002, China; (Y.P.); (L.C.); (F.Y.); (C.M.); (X.L.); (Y.S.)
- School of Agricultural Sciences, Zhengzhou University, Zhengzhou 450002, China
| | - Liru Cao
- Grain Crops Research Institute, Henan Academy of Agricultural Sciences, Postgraduate T&R Base of Zhengzhou University, Zhengzhou 450002, China; (Y.P.); (L.C.); (F.Y.); (C.M.); (X.L.); (Y.S.)
- The Shennong Laboratory, Zhengzhou 450002, China
| | - Feiyu Ye
- Grain Crops Research Institute, Henan Academy of Agricultural Sciences, Postgraduate T&R Base of Zhengzhou University, Zhengzhou 450002, China; (Y.P.); (L.C.); (F.Y.); (C.M.); (X.L.); (Y.S.)
- The Shennong Laboratory, Zhengzhou 450002, China
| | - Chenchen Ma
- Grain Crops Research Institute, Henan Academy of Agricultural Sciences, Postgraduate T&R Base of Zhengzhou University, Zhengzhou 450002, China; (Y.P.); (L.C.); (F.Y.); (C.M.); (X.L.); (Y.S.)
- The Shennong Laboratory, Zhengzhou 450002, China
| | - Xiaohan Liang
- Grain Crops Research Institute, Henan Academy of Agricultural Sciences, Postgraduate T&R Base of Zhengzhou University, Zhengzhou 450002, China; (Y.P.); (L.C.); (F.Y.); (C.M.); (X.L.); (Y.S.)
- The Shennong Laboratory, Zhengzhou 450002, China
| | - Yinghui Song
- Grain Crops Research Institute, Henan Academy of Agricultural Sciences, Postgraduate T&R Base of Zhengzhou University, Zhengzhou 450002, China; (Y.P.); (L.C.); (F.Y.); (C.M.); (X.L.); (Y.S.)
| | - Xiaomin Lu
- Grain Crops Research Institute, Henan Academy of Agricultural Sciences, Postgraduate T&R Base of Zhengzhou University, Zhengzhou 450002, China; (Y.P.); (L.C.); (F.Y.); (C.M.); (X.L.); (Y.S.)
- The Shennong Laboratory, Zhengzhou 450002, China
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Zhu S, Zhang B, Zhu T, Wang D, Liu C, Liu Y, He Y, Liang W, Li W, Han R, Li D, Yan F, Tian Y, Li G, Kang X, Li Z, Jiang R, Sun G. miR-128-3p inhibits intramuscular adipocytes differentiation in chickens by downregulating FDPS. BMC Genomics 2023; 24:540. [PMID: 37700222 PMCID: PMC10496186 DOI: 10.1186/s12864-023-09649-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2023] [Accepted: 09/04/2023] [Indexed: 09/14/2023] Open
Abstract
BACKGROUND Intramuscular fat (IMF) content is the major indicator for evaluating chicken meat quality due to its positive correlation with tenderness, juiciness, and flavor. An increasing number of studies are focusing on the functions of microRNAs (miRNAs) in intramuscular adipocyte differentiation. However, little is known about the association of miR-128-3p with intramuscular adipocyte differentiation. Our previous RNA-seq results indicated that miR-128-3p was differentially expressed at different periods in chicken intramuscular adipocytes, revealing a possible association with intramuscular adipogenesis. The purpose of this research was to investigate the biological functions and regulatory mechanism of miR-128-3p in chicken intramuscular adipogenesis. RESULTS The results of a series of assays confirmed that miR-128-3p could promote the proliferation and inhibit the differentiation of intramuscular adipocytes. A total of 223 and 1,050 differentially expressed genes (DEGs) were identified in the mimic treatment group and inhibitor treatment group, respectively, compared with the control group. Functional enrichment analysis revealed that the DEGs were involved in lipid metabolism-related pathways, such as the MAPK and TGF-β signaling pathways. Furthermore, target gene prediction analysis showed that miR-128-3p can target many of the DEGs, such as FDPS, GGT5, TMEM37, and ASL2. The luciferase assay results showed that miR-128-3p targeted the 3' UTR of FDPS. The results of subsequent functional assays demonstrated that miR-128-3p acted as an inhibitor of intramuscular adipocyte differentiation by targeting FDPS. CONCLUSION miR-128-3p inhibits chicken intramuscular adipocyte differentiation by downregulating FDPS. Our findings provide a theoretical basis for the study of lipid metabolism and reveal a potential target for molecular breeding to improve meat quality.
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Affiliation(s)
- Shuaipeng Zhu
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou, 450046, P.R. China
| | - Binbin Zhang
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou, 450046, P.R. China
| | - Tingqi Zhu
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou, 450046, P.R. China
| | - Dongxue Wang
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou, 450046, P.R. China
| | - Cong Liu
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou, 450046, P.R. China
| | - Yixuan Liu
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou, 450046, P.R. China
| | - Yuehua He
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou, 450046, P.R. China
| | - Wenjie Liang
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou, 450046, P.R. China
| | - Wenting Li
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou, 450046, P.R. China
- The Shennong Seed Industry Laboratory, Zhengzhou, 450002, China
| | - Ruili Han
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou, 450046, P.R. China
- The Shennong Seed Industry Laboratory, Zhengzhou, 450002, China
| | - Donghua Li
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou, 450046, P.R. China
| | - Fengbin Yan
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou, 450046, P.R. China
| | - Yadong Tian
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou, 450046, P.R. China
| | - Guoxi Li
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou, 450046, P.R. China
- The Shennong Seed Industry Laboratory, Zhengzhou, 450002, China
| | - Xiangtao Kang
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou, 450046, P.R. China
- The Shennong Seed Industry Laboratory, Zhengzhou, 450002, China
| | - Zhuanjian Li
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou, 450046, P.R. China
| | - Ruirui Jiang
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou, 450046, P.R. China
| | - Guirong Sun
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou, 450046, P.R. China.
- The Shennong Seed Industry Laboratory, Zhengzhou, 450002, China.
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Li R, Wang Y, Liu Y, Li D, Tian Y, Liu X, Kang X, Li Z. Effects of SLC45A2 and GPNMB on Melanin Deposition Based on Transcriptome Sequencing in Chicken Feather Follicles. Animals (Basel) 2023; 13:2608. [PMID: 37627399 PMCID: PMC10451703 DOI: 10.3390/ani13162608] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2023] [Revised: 08/04/2023] [Accepted: 08/10/2023] [Indexed: 08/27/2023] Open
Abstract
As an essential genetic and economic trait, chicken feather color has long been an important research topic. To further understand the mechanism of melanin deposition associated with coloration in chicken feathers, we selected feather follicle tissues from the neck and wings of chickens with differently colored feathers (yellow, sub-Columbian, and silver) for transcriptome analysis. We focused on genes that were expressed in both the wings and neck and were expressed with the same trends in breeds with two different plumage colors, specifically, SLC45A2, GPNMB, MLPH, TYR, KIT, WNT11, and FZD1. GO and KEGG enrichment analyses showed the DEGs were enriched in melanin-related pathways, such as tyrosine metabolic pathway and melanogenesis, and PPI analysis highlighted the genes SLC45A2 and GPNMB as associated with melanin deposition. Verification experiments in chicken melanocytes demonstrated that these two genes promote melanocyte melanin deposition. These data enrich our knowledge of the mechanisms that regulate chicken feather color.
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Affiliation(s)
- Ruiting Li
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou 450046, China; (R.L.); (Y.W.); (Y.L.); (D.L.)
- Henan Key Laboratory for Innovation and Utilization of Chicken Germplasm Resources, Zhengzhou 450046, China
| | - Yanxing Wang
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou 450046, China; (R.L.); (Y.W.); (Y.L.); (D.L.)
- Henan Key Laboratory for Innovation and Utilization of Chicken Germplasm Resources, Zhengzhou 450046, China
| | - Yihan Liu
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou 450046, China; (R.L.); (Y.W.); (Y.L.); (D.L.)
- Henan Key Laboratory for Innovation and Utilization of Chicken Germplasm Resources, Zhengzhou 450046, China
| | - Donghua Li
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou 450046, China; (R.L.); (Y.W.); (Y.L.); (D.L.)
- Henan Key Laboratory for Innovation and Utilization of Chicken Germplasm Resources, Zhengzhou 450046, China
| | - Yadong Tian
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou 450046, China; (R.L.); (Y.W.); (Y.L.); (D.L.)
- Henan Key Laboratory for Innovation and Utilization of Chicken Germplasm Resources, Zhengzhou 450046, China
| | - Xiaojun Liu
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou 450046, China; (R.L.); (Y.W.); (Y.L.); (D.L.)
- Henan Key Laboratory for Innovation and Utilization of Chicken Germplasm Resources, Zhengzhou 450046, China
| | - Xiangtao Kang
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou 450046, China; (R.L.); (Y.W.); (Y.L.); (D.L.)
- Henan Key Laboratory for Innovation and Utilization of Chicken Germplasm Resources, Zhengzhou 450046, China
- The Shennong Laboratory, Zhengzhou 450000, China
| | - Zhuanjian Li
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou 450046, China; (R.L.); (Y.W.); (Y.L.); (D.L.)
- Henan Key Laboratory for Innovation and Utilization of Chicken Germplasm Resources, Zhengzhou 450046, China
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