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Huang Y, Zhai L, Chai X, Liu Y, Lv J, Pi Y, Gao B, Wang X, Wu T, Zhang X, Han Z, Wang Y. Bacillus B2 promotes root growth and enhances phosphorus absorption in apple rootstocks by affecting MhMYB15. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2024; 119:1880-1899. [PMID: 38924231 DOI: 10.1111/tpj.16893] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/17/2024] [Revised: 05/13/2024] [Accepted: 06/11/2024] [Indexed: 06/28/2024]
Abstract
Due to the chelation of phosphorus in the soil, it becomes unavailable for plant growth and development. The mechanisms by which phosphorus-solubilizing bacteria activate immobilized phosphorus to promote the growth and development of woody plants, as well as the intrinsic molecular mechanisms, are not clear. Through the analysis of microbial communities in the rhizosphere 16S V3-V4 and a homologous gene encoding microbial alkaline phosphomonoesterase (phoD) in phosphate-efficient (PE) and phosphate-inefficient apple rootstocks, it was found that PE significantly enriched beneficial rhizobacteria. The best phosphorus-solubilizing bacteria, Bacillus sp. strain 7DB1 (B2), was isolated, purified, and identified from the rhizosphere soil of PE rootstocks. Incubating with Bacillus B2 into the rhizosphere of apple rootstocks significantly increased the soluble phosphorus and flavonoid content in the rhizosphere soil. Simultaneously, this process stimulates the root development of the rootstocks and enhances plant phosphorus uptake. After root transcriptome sequencing, candidate transcription factor MhMYB15, responsive to Bacillus B2, was identified through heatmap and co-expression network analysis. Yeast one-hybrid, electrophoretic mobility shift assay, and LUC assay confirmed that MhMYB15 can directly bind to the promoter regions of downstream functional genes, including chalcone synthase MhCHS2 and phosphate transporter MhPHT1;15. Transgenic experiments with MhMYB15 revealed that RNAi-MhMYB15 silenced lines failed to induce an increase in flavonoid content and phosphorus levels in the roots under the treatment of Bacillus B2, and plant growth was slower than the control. In conclusion, MhMYB15 actively responds to Bacillus B2, regulating the accumulation of flavonoids and the uptake of phosphorus, thereby influencing plant growth and development.
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Affiliation(s)
- Yimei Huang
- College of Horticulture, China Agricultural University, Beijing, 100193, P.R. China
- Key Laboratory of Biology and Genetic Improvement of Horticultural (Nutrition and Physiology), The Ministry of Agriculture and Rural Affairs, Beijing, P.R. China
| | - Longmei Zhai
- College of Horticulture, China Agricultural University, Beijing, 100193, P.R. China
- Key Laboratory of Biology and Genetic Improvement of Horticultural (Nutrition and Physiology), The Ministry of Agriculture and Rural Affairs, Beijing, P.R. China
| | - Xiaofen Chai
- College of Horticulture, China Agricultural University, Beijing, 100193, P.R. China
- Key Laboratory of Biology and Genetic Improvement of Horticultural (Nutrition and Physiology), The Ministry of Agriculture and Rural Affairs, Beijing, P.R. China
| | - Yao Liu
- College of Horticulture, China Agricultural University, Beijing, 100193, P.R. China
- Key Laboratory of Biology and Genetic Improvement of Horticultural (Nutrition and Physiology), The Ministry of Agriculture and Rural Affairs, Beijing, P.R. China
| | - Jiahong Lv
- College of Horticulture, China Agricultural University, Beijing, 100193, P.R. China
- Key Laboratory of Biology and Genetic Improvement of Horticultural (Nutrition and Physiology), The Ministry of Agriculture and Rural Affairs, Beijing, P.R. China
| | - Ying Pi
- College of Horticulture, China Agricultural University, Beijing, 100193, P.R. China
- Key Laboratory of Biology and Genetic Improvement of Horticultural (Nutrition and Physiology), The Ministry of Agriculture and Rural Affairs, Beijing, P.R. China
| | - Beibei Gao
- College of Horticulture, China Agricultural University, Beijing, 100193, P.R. China
- Key Laboratory of Biology and Genetic Improvement of Horticultural (Nutrition and Physiology), The Ministry of Agriculture and Rural Affairs, Beijing, P.R. China
| | - Xiaona Wang
- College of Horticulture, China Agricultural University, Beijing, 100193, P.R. China
- Key Laboratory of Biology and Genetic Improvement of Horticultural (Nutrition and Physiology), The Ministry of Agriculture and Rural Affairs, Beijing, P.R. China
| | - Ting Wu
- College of Horticulture, China Agricultural University, Beijing, 100193, P.R. China
- Key Laboratory of Biology and Genetic Improvement of Horticultural (Nutrition and Physiology), The Ministry of Agriculture and Rural Affairs, Beijing, P.R. China
| | - Xinzhong Zhang
- College of Horticulture, China Agricultural University, Beijing, 100193, P.R. China
- Key Laboratory of Biology and Genetic Improvement of Horticultural (Nutrition and Physiology), The Ministry of Agriculture and Rural Affairs, Beijing, P.R. China
| | - Zhenhai Han
- College of Horticulture, China Agricultural University, Beijing, 100193, P.R. China
- Key Laboratory of Biology and Genetic Improvement of Horticultural (Nutrition and Physiology), The Ministry of Agriculture and Rural Affairs, Beijing, P.R. China
| | - Yi Wang
- College of Horticulture, China Agricultural University, Beijing, 100193, P.R. China
- Key Laboratory of Biology and Genetic Improvement of Horticultural (Nutrition and Physiology), The Ministry of Agriculture and Rural Affairs, Beijing, P.R. China
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Yang Y, Mu J, Hao X, Yang K, Cao Z, Feng J, Li R, Zhang N, Zhou G, Kong Y, Wang D. Identification and Analysis of the Mechanism of Stem Mechanical Strength Enhancement for Maize Inbred Lines QY1. Int J Mol Sci 2024; 25:8195. [PMID: 39125770 PMCID: PMC11312173 DOI: 10.3390/ijms25158195] [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: 06/24/2024] [Revised: 07/24/2024] [Accepted: 07/25/2024] [Indexed: 08/12/2024] Open
Abstract
Enhancing stalk strength is a crucial strategy to reduce lodging. We identified a maize inbred line, QY1, with superior stalk mechanical strength. Comprehensive analyses of the microstructure, cell wall composition, and transcriptome of QY1 were performed to elucidate the underlying factors contributing to its increased strength. Notably, both the vascular bundle area and the thickness of the sclerenchyma cell walls in QY1 were significantly increased. Furthermore, analyses of cell wall components revealed a significant increase in cellulose content and a notable reduction in lignin content. RNA sequencing (RNA-seq) revealed changes in the expression of numerous genes involved in cell wall synthesis and modification, especially those encoding pectin methylesterase (PME). Variations in PME activity and the degree of methylesterification were noted. Additionally, glycolytic efficiency in QY1 was significantly enhanced. These findings indicate that QY1 could be a valuable resource for the development of maize varieties with enhanced stalk mechanical strength and for biofuel production.
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Affiliation(s)
- Yumeng Yang
- College of Agronomy, Qingdao Agricultural University, Qingdao 266109, China; (Y.Y.); (J.M.); (X.H.); (K.Y.); (Z.C.); (J.F.); (R.L.); (N.Z.)
| | - Jianing Mu
- College of Agronomy, Qingdao Agricultural University, Qingdao 266109, China; (Y.Y.); (J.M.); (X.H.); (K.Y.); (Z.C.); (J.F.); (R.L.); (N.Z.)
| | - Xiaoning Hao
- College of Agronomy, Qingdao Agricultural University, Qingdao 266109, China; (Y.Y.); (J.M.); (X.H.); (K.Y.); (Z.C.); (J.F.); (R.L.); (N.Z.)
| | - Kangkang Yang
- College of Agronomy, Qingdao Agricultural University, Qingdao 266109, China; (Y.Y.); (J.M.); (X.H.); (K.Y.); (Z.C.); (J.F.); (R.L.); (N.Z.)
| | - Ziyu Cao
- College of Agronomy, Qingdao Agricultural University, Qingdao 266109, China; (Y.Y.); (J.M.); (X.H.); (K.Y.); (Z.C.); (J.F.); (R.L.); (N.Z.)
| | - Jiping Feng
- College of Agronomy, Qingdao Agricultural University, Qingdao 266109, China; (Y.Y.); (J.M.); (X.H.); (K.Y.); (Z.C.); (J.F.); (R.L.); (N.Z.)
| | - Runhao Li
- College of Agronomy, Qingdao Agricultural University, Qingdao 266109, China; (Y.Y.); (J.M.); (X.H.); (K.Y.); (Z.C.); (J.F.); (R.L.); (N.Z.)
| | - Ning Zhang
- College of Agronomy, Qingdao Agricultural University, Qingdao 266109, China; (Y.Y.); (J.M.); (X.H.); (K.Y.); (Z.C.); (J.F.); (R.L.); (N.Z.)
| | - Gongke Zhou
- College of Landscape Architecture and Forestry, Qingdao Agricultural University, No. 700 Changcheng Road, Chengyang District, Qingdao 266109, China;
- Academy of Dongying Efficient Agricultural Technology and Industry on Saline and Alkaline Land in Collaboration with Qingdao Agricultural University, Dongying 257000, China
| | - Yingzhen Kong
- College of Agronomy, Qingdao Agricultural University, Qingdao 266109, China; (Y.Y.); (J.M.); (X.H.); (K.Y.); (Z.C.); (J.F.); (R.L.); (N.Z.)
| | - Dian Wang
- College of Agronomy, Qingdao Agricultural University, Qingdao 266109, China; (Y.Y.); (J.M.); (X.H.); (K.Y.); (Z.C.); (J.F.); (R.L.); (N.Z.)
- Academy of Dongying Efficient Agricultural Technology and Industry on Saline and Alkaline Land in Collaboration with Qingdao Agricultural University, Dongying 257000, China
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3
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Luo B, Zhang H, Han Z, Zhang X, Guo J, Zhang S, Luo X, Zhao J, Wang W, Yang G, Zhang C, Li J, Ma J, Zheng H, Tang Z, Lan Y, Ma P, Nie Z, Li Y, Liu D, Wu L, Gao D, Gao S, Su S, Guo J, Gao S. Exploring the phosphorus-starch content balance mechanisms in maize grains using GWAS population and transcriptome data. TAG. THEORETICAL AND APPLIED GENETICS. THEORETISCHE UND ANGEWANDTE GENETIK 2024; 137:158. [PMID: 38864891 DOI: 10.1007/s00122-024-04667-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/13/2024] [Accepted: 06/01/2024] [Indexed: 06/13/2024]
Abstract
Examining the connection between P and starch-related signals can help elucidate the balance between nutrients and yield. This study utilized 307 diverse maize inbred lines to conduct multi-year and multi-plot trials, aiming to explore the relationship among P content, starch content, and 100-kernel weight (HKW) of mature grains. A significant negative correlation was found between P content and both starch content and HKW, while starch content showed a positive correlation with HKW. The starch granules in grains with high-P and low-starch content (HPLS) were significantly smaller compared to grains with low-P high-starch content (LPHS). Additionally, mian04185-4 (HPLS) exhibited irregular and loosely packed starch granules. A significant decrease in ZmPHOs genes expression was detected in the HPLS line ZNC442 as compared to the LPHS line SCML0849, while no expression difference was observed in AGPase encoding genes between these two lines. The down-regulated genes in ZNC442 grains were enriched in nucleotide sugar and fatty acid anabolic pathways, while up-regulated genes were enriched in the ABC transporters pathway. An accelerated breakdown of fat as the P content increased was also observed. This implied that HPLS was resulted from elevated lipid decomposition and inadequate carbon sources. The GWAS analysis identified 514 significantly associated genes, out of which 248 were differentially expressed. Zm00001d052392 was found to be significantly associated with P content/HKW, exhibiting high expression in SCML0849 but almost no expression in ZNC442. Overall, these findings suggested new approaches for achieving a P-yield balance through the manipulation of lipid metabolic pathways in grains.
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Affiliation(s)
- Bowen Luo
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Chengdu, 611130, Sichuan, China
- Maize Research Institute, Sichuan Agricultural University, Chengdu, 611130, Sichuan, China
- Key Laboratory of Biology and Genetic Improvement of Maize in Southwest Region, Ministry of Agriculture, Chengdu, 611130, Sichuan, China
| | - Haiying Zhang
- Maize Research Institute, Sichuan Agricultural University, Chengdu, 611130, Sichuan, China
- Key Laboratory of Biology and Genetic Improvement of Maize in Southwest Region, Ministry of Agriculture, Chengdu, 611130, Sichuan, China
| | - Zheng Han
- Maize Research Institute, Sichuan Agricultural University, Chengdu, 611130, Sichuan, China
- Key Laboratory of Biology and Genetic Improvement of Maize in Southwest Region, Ministry of Agriculture, Chengdu, 611130, Sichuan, China
| | - Xiao Zhang
- Maize Research Institute, Sichuan Agricultural University, Chengdu, 611130, Sichuan, China
- Key Laboratory of Biology and Genetic Improvement of Maize in Southwest Region, Ministry of Agriculture, Chengdu, 611130, Sichuan, China
| | - Jianyong Guo
- Maize Research Institute, Sichuan Agricultural University, Chengdu, 611130, Sichuan, China
- Key Laboratory of Biology and Genetic Improvement of Maize in Southwest Region, Ministry of Agriculture, Chengdu, 611130, Sichuan, China
| | - Shuhao Zhang
- Maize Research Institute, Sichuan Agricultural University, Chengdu, 611130, Sichuan, China
- Key Laboratory of Biology and Genetic Improvement of Maize in Southwest Region, Ministry of Agriculture, Chengdu, 611130, Sichuan, China
| | - Xianfu Luo
- Maize Research Institute, Sichuan Agricultural University, Chengdu, 611130, Sichuan, China
- Key Laboratory of Biology and Genetic Improvement of Maize in Southwest Region, Ministry of Agriculture, Chengdu, 611130, Sichuan, China
| | - Jin Zhao
- Maize Research Institute, Sichuan Agricultural University, Chengdu, 611130, Sichuan, China
- Key Laboratory of Biology and Genetic Improvement of Maize in Southwest Region, Ministry of Agriculture, Chengdu, 611130, Sichuan, China
| | - Wei Wang
- Maize Research Institute, Sichuan Agricultural University, Chengdu, 611130, Sichuan, China
- Key Laboratory of Biology and Genetic Improvement of Maize in Southwest Region, Ministry of Agriculture, Chengdu, 611130, Sichuan, China
| | - Guohui Yang
- Maize Research Institute, Sichuan Agricultural University, Chengdu, 611130, Sichuan, China
- Key Laboratory of Biology and Genetic Improvement of Maize in Southwest Region, Ministry of Agriculture, Chengdu, 611130, Sichuan, China
| | - Chong Zhang
- Maize Research Institute, Sichuan Agricultural University, Chengdu, 611130, Sichuan, China
- Key Laboratory of Biology and Genetic Improvement of Maize in Southwest Region, Ministry of Agriculture, Chengdu, 611130, Sichuan, China
| | - Jing Li
- Maize Research Institute, Sichuan Agricultural University, Chengdu, 611130, Sichuan, China
- Key Laboratory of Biology and Genetic Improvement of Maize in Southwest Region, Ministry of Agriculture, Chengdu, 611130, Sichuan, China
| | - Junchi Ma
- Maize Research Institute, Sichuan Agricultural University, Chengdu, 611130, Sichuan, China
- Key Laboratory of Biology and Genetic Improvement of Maize in Southwest Region, Ministry of Agriculture, Chengdu, 611130, Sichuan, China
| | - Hao Zheng
- College of Agronomy, Sichuan Agricultural University, Chengdu, 611130, Sichuan, China
| | - Zirui Tang
- College of Agronomy, Sichuan Agricultural University, Chengdu, 611130, Sichuan, China
| | - Yuzhou Lan
- Department of Plant Breeding, The Swedish University of Agricultural Sciences, P.O. Box 190, 23422, Lomma, Sweden
| | - Peng Ma
- Mianyang Academy of Agricultural Sciences, Mianyang, 621023, Sichuan, China
- Crop Characteristic Resources Creation and Utilization Key Laboratory of Sichuan Province, Mianyang, China
| | - Zhi Nie
- Sichuan Academy of Agricultural Sciences, Biotechnology and Nuclear Technology Research Institute, Chengdu, China
| | - Yunjian Li
- Maize Research Institute, Sichuan Agricultural University, Chengdu, 611130, Sichuan, China
- Key Laboratory of Biology and Genetic Improvement of Maize in Southwest Region, Ministry of Agriculture, Chengdu, 611130, Sichuan, China
| | - Dan Liu
- Maize Research Institute, Sichuan Agricultural University, Chengdu, 611130, Sichuan, China
- Key Laboratory of Biology and Genetic Improvement of Maize in Southwest Region, Ministry of Agriculture, Chengdu, 611130, Sichuan, China
| | - Ling Wu
- Maize Research Institute, Sichuan Agricultural University, Chengdu, 611130, Sichuan, China
- Key Laboratory of Biology and Genetic Improvement of Maize in Southwest Region, Ministry of Agriculture, Chengdu, 611130, Sichuan, China
| | - Duojiang Gao
- Maize Research Institute, Sichuan Agricultural University, Chengdu, 611130, Sichuan, China
- Key Laboratory of Biology and Genetic Improvement of Maize in Southwest Region, Ministry of Agriculture, Chengdu, 611130, Sichuan, China
| | - Shiqiang Gao
- Maize Research Institute, Sichuan Agricultural University, Chengdu, 611130, Sichuan, China
- Key Laboratory of Biology and Genetic Improvement of Maize in Southwest Region, Ministry of Agriculture, Chengdu, 611130, Sichuan, China
| | - Shunzong Su
- College of Resources, Sichuan Agricultural University, Chengdu, 611130, Sichuan, China
| | - Jia Guo
- Rice Research Institute, Sichuan Agricultural University, Chengdu, 611130, Sichuan, China
| | - Shibin Gao
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Chengdu, 611130, Sichuan, China.
- Maize Research Institute, Sichuan Agricultural University, Chengdu, 611130, Sichuan, China.
- Key Laboratory of Biology and Genetic Improvement of Maize in Southwest Region, Ministry of Agriculture, Chengdu, 611130, Sichuan, China.
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Yang G, Sun M, Brewer L, Tang Z, Nieuwenhuizen N, Cooney J, Xu S, Sheng J, Andre C, Xue C, Rebstock R, Yang B, Chang W, Liu Y, Li J, Wang R, Qin M, Brendolise C, Allan AC, Espley RV, Lin‐Wang K, Wu J. Allelic variation of BBX24 is a dominant determinant controlling red coloration and dwarfism in pear. PLANT BIOTECHNOLOGY JOURNAL 2024; 22:1468-1490. [PMID: 38169146 PMCID: PMC11123420 DOI: 10.1111/pbi.14280] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/09/2023] [Revised: 12/13/2023] [Accepted: 12/20/2023] [Indexed: 01/05/2024]
Abstract
Variation in anthocyanin biosynthesis in pear fruit provides genetic germplasm resources for breeding, while dwarfing is an important agronomic trait, which is beneficial to reduce the management costs and allow for the implementation of high-density cultivation. Here, we combined bulked segregant analysis (BSA), quantitative trait loci (QTL), and structural variation (SV) analysis to identify a 14-bp deletion which caused a frame shift mutation and resulted in the premature translation termination of a B-box (BBX) family of zinc transcription factor, PyBBX24, and its allelic variation termed PyBBX24ΔN14. PyBBX24ΔN14 overexpression promotes anthocyanin biosynthesis in pear, strawberry, Arabidopsis, tobacco, and tomato, while that of PyBBX24 did not. PyBBX24ΔN14 directly activates the transcription of PyUFGT and PyMYB10 through interaction with PyHY5. Moreover, stable overexpression of PyBBX24ΔN14 exhibits a dwarfing phenotype in Arabidopsis, tobacco, and tomato plants. PyBBX24ΔN14 can activate the expression of PyGA2ox8 via directly binding to its promoter, thereby deactivating bioactive GAs and reducing the plant height. However, the nuclear localization signal (NLS) and Valine-Proline (VP) motifs in the C-terminus of PyBBX24 reverse these effects. Interestingly, mutations leading to premature termination of PyBBX24 were also identified in red sports of un-related European pear varieties. We conclude that mutations in PyBBX24 gene link both an increase in pigmentation and a decrease in plant height.
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Affiliation(s)
- Guangyan Yang
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, College of HorticultureNanjing Agricultural UniversityNanjingChina
- Zhongshan Biological Breeding LaboratoryNanjingJiangsuChina
| | - Manyi Sun
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, College of HorticultureNanjing Agricultural UniversityNanjingChina
- Zhongshan Biological Breeding LaboratoryNanjingJiangsuChina
| | - Lester Brewer
- The New Zealand Institute for Plant & Food Research LimitedAucklandNew Zealand
| | - Zikai Tang
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, College of HorticultureNanjing Agricultural UniversityNanjingChina
| | - Niels Nieuwenhuizen
- The New Zealand Institute for Plant & Food Research LimitedAucklandNew Zealand
| | - Janine Cooney
- The New Zealand Institute for Plant & Food Research LimitedAucklandNew Zealand
| | - Shaozhuo Xu
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, College of HorticultureNanjing Agricultural UniversityNanjingChina
| | - Jiawen Sheng
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, College of HorticultureNanjing Agricultural UniversityNanjingChina
| | - Christelle Andre
- The New Zealand Institute for Plant & Food Research LimitedAucklandNew Zealand
| | - Cheng Xue
- State Key Laboratory of Crop Biology, College of Horticulture Science and EngineeringShandong Agricultural UniversityTai'anChina
| | - Ria Rebstock
- The New Zealand Institute for Plant & Food Research LimitedAucklandNew Zealand
| | - Bo Yang
- The New Zealand Institute for Plant & Food Research LimitedAucklandNew Zealand
| | - Wenjing Chang
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, College of HorticultureNanjing Agricultural UniversityNanjingChina
| | - Yueyuan Liu
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, College of HorticultureNanjing Agricultural UniversityNanjingChina
| | - Jiaming Li
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, College of HorticultureNanjing Agricultural UniversityNanjingChina
- Zhongshan Biological Breeding LaboratoryNanjingJiangsuChina
| | - Runze Wang
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, College of HorticultureNanjing Agricultural UniversityNanjingChina
| | - Mengfan Qin
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, College of HorticultureNanjing Agricultural UniversityNanjingChina
| | - Cyril Brendolise
- The New Zealand Institute for Plant & Food Research LimitedAucklandNew Zealand
| | - Andrew C. Allan
- The New Zealand Institute for Plant & Food Research LimitedAucklandNew Zealand
| | - Richard V. Espley
- The New Zealand Institute for Plant & Food Research LimitedAucklandNew Zealand
| | - Kui Lin‐Wang
- The New Zealand Institute for Plant & Food Research LimitedAucklandNew Zealand
| | - Jun Wu
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, College of HorticultureNanjing Agricultural UniversityNanjingChina
- Zhongshan Biological Breeding LaboratoryNanjingJiangsuChina
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Wu JW, Wang XY, Yan RY, Zheng GM, Zhang L, Wang Y, Zhao YJ, Wang BH, Pu ML, Zhang XS, Zhao XY. A MYB-related transcription factor ZmMYBR29 is involved in grain filling. BMC PLANT BIOLOGY 2024; 24:458. [PMID: 38797860 PMCID: PMC11129368 DOI: 10.1186/s12870-024-05163-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/19/2024] [Accepted: 05/16/2024] [Indexed: 05/29/2024]
Abstract
BACKGROUND The endosperm serves as the primary source of nutrients for maize (Zea mays L.) kernel embryo development and germination. Positioned at the base of the endosperm, the transfer cells (TCs) of the basal endosperm transfer layer (BETL) generate cell wall ingrowths, which enhance the connectivity between the maternal plant and the developing kernels. These TCs play a crucial role in nutrient transport and defense against pathogens. The molecular mechanism underlying BETL development in maize remains unraveled. RESULTS This study demonstrated that the MYB-related transcription factor ZmMYBR29, exhibited specific expression in the basal cellularized endosperm, as evidenced by in situ hybridization analysis. Utilizing the CRISPR/Cas9 system, we successfully generated a loss-of-function homozygous zmmybr29 mutant, which presented with smaller kernel size. Observation of histological sections revealed abnormal development and disrupted morphology of the cell wall ingrowths in the BETL. The average grain filling rate decreased significantly by 26.7% in zmmybr29 mutant in comparison to the wild type, which impacted the dry matter accumulation within the kernels and ultimately led to a decrease in grain weight. Analysis of RNA-seq data revealed downregulated expression of genes associated with starch synthesis and carbohydrate metabolism in the mutant. Furthermore, transcriptomic profiling identified 23 genes that expressed specifically in BETL, and the majority of these genes exhibited altered expression patterns in zmmybr29 mutant. CONCLUSIONS In summary, ZmMYBR29 encodes a MYB-related transcription factor that is expressed specifically in BETL, resulting in the downregulation of genes associated with kernel development. Furthermore, ZmMYBR29 influences kernels weight by affecting the grain filling rate, providing a new perspective for the complementation of the molecular regulatory network in maize endosperm development.
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Affiliation(s)
- Jia Wen Wu
- State Key Laboratory of Crop Biology, College of Life Sciences, Shandong Agricultural University, Taian, 271018, Shandong, China
| | - Xiao Yi Wang
- State Key Laboratory of Crop Biology, College of Life Sciences, Shandong Agricultural University, Taian, 271018, Shandong, China
| | - Ru Yu Yan
- State Key Laboratory of Crop Biology, College of Life Sciences, Shandong Agricultural University, Taian, 271018, Shandong, China
| | - Guang Ming Zheng
- State Key Laboratory of Crop Biology, College of Life Sciences, Shandong Agricultural University, Taian, 271018, Shandong, China
| | - Lin Zhang
- State Key Laboratory of Crop Biology, College of Life Sciences, Shandong Agricultural University, Taian, 271018, Shandong, China
| | - Yu Wang
- State Key Laboratory of Crop Biology, College of Life Sciences, Shandong Agricultural University, Taian, 271018, Shandong, China
| | - Ya Jie Zhao
- State Key Laboratory of Crop Biology, College of Life Sciences, Shandong Agricultural University, Taian, 271018, Shandong, China
| | - Bo Hui Wang
- State Key Laboratory of Crop Biology, College of Life Sciences, Shandong Agricultural University, Taian, 271018, Shandong, China
| | - Meng Lin Pu
- State Key Laboratory of Crop Biology, College of Life Sciences, Shandong Agricultural University, Taian, 271018, Shandong, China
| | - Xian Sheng Zhang
- State Key Laboratory of Crop Biology, College of Life Sciences, Shandong Agricultural University, Taian, 271018, Shandong, China
| | - Xiang Yu Zhao
- State Key Laboratory of Crop Biology, College of Life Sciences, Shandong Agricultural University, Taian, 271018, Shandong, China.
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6
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Gao H, Wu G, Wu F, Zhou X, Zhou Y, Xu K, Li Y, Zhang W, Zhao K, Jing Y, Feng C, Wang N, Li H. Genome-Wide Association Analysis of Yield-Related Traits and Candidate Genes in Vegetable Soybean. PLANTS (BASEL, SWITZERLAND) 2024; 13:1442. [PMID: 38891251 PMCID: PMC11174663 DOI: 10.3390/plants13111442] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/01/2024] [Revised: 05/12/2024] [Accepted: 05/21/2024] [Indexed: 06/21/2024]
Abstract
Owing to the rising demand for vegetable soybean products, there is an increasing need for high-yield soybean varieties. However, the complex correlation patterns among quantitative traits with genetic architecture pose a challenge for improving vegetable soybean through breeding. Herein, a genome-wide association study (GWAS) was applied to 6 yield-related traits in 188 vegetable soybean accessions. Using a BLINK model, a total of 116 single nucleotide polymorphisms (SNPs) were identified for plant height, pod length, pod number, pod thickness, pod width, and fresh pod weight. Furthermore, a total of 220 genes were found in the 200 kb upstream and downstream regions of significant SNPs, including 11 genes encoding functional proteins. Among them, four candidate genes, Glyma.13G109100, Glyma.03G183200, Glyma.09G102200, and Glyma.09G102300 were analyzed for significant haplotype variations and to be in LD block, which encode MYB-related transcription factor, auxin-responsive protein, F-box protein, and CYP450, respectively. The relative expression of candidate genes in V030 and V071 vegetable soybean (for the plant height, pod number, and fresh pod weight of V030 were lower than those of the V071 strains) was significantly different, and these genes could be involved in plant growth and development via various pathways. Altogether, we identified four candidate genes for pod yield and plant height from vegetable soybean germplasm. This study provides insights into the genomic basis for improving soybean and crucial genomic resources that can facilitate genome-assisted high-yielding vegetable soybean breeding.
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Affiliation(s)
- Hongtao Gao
- School of Breeding and Multiplication (Sanya Institute of Breeding and Multiplication), Hainan University, Haikou 572025, China; (H.G.); (G.W.); (F.W.); (X.Z.); (Y.Z.); (K.X.); (Y.L.)
| | - Guanji Wu
- School of Breeding and Multiplication (Sanya Institute of Breeding and Multiplication), Hainan University, Haikou 572025, China; (H.G.); (G.W.); (F.W.); (X.Z.); (Y.Z.); (K.X.); (Y.L.)
| | - Feifei Wu
- School of Breeding and Multiplication (Sanya Institute of Breeding and Multiplication), Hainan University, Haikou 572025, China; (H.G.); (G.W.); (F.W.); (X.Z.); (Y.Z.); (K.X.); (Y.L.)
| | - Xunjun Zhou
- School of Breeding and Multiplication (Sanya Institute of Breeding and Multiplication), Hainan University, Haikou 572025, China; (H.G.); (G.W.); (F.W.); (X.Z.); (Y.Z.); (K.X.); (Y.L.)
| | - Yonggang Zhou
- School of Breeding and Multiplication (Sanya Institute of Breeding and Multiplication), Hainan University, Haikou 572025, China; (H.G.); (G.W.); (F.W.); (X.Z.); (Y.Z.); (K.X.); (Y.L.)
| | - Keheng Xu
- School of Breeding and Multiplication (Sanya Institute of Breeding and Multiplication), Hainan University, Haikou 572025, China; (H.G.); (G.W.); (F.W.); (X.Z.); (Y.Z.); (K.X.); (Y.L.)
| | - Yaxin Li
- School of Breeding and Multiplication (Sanya Institute of Breeding and Multiplication), Hainan University, Haikou 572025, China; (H.G.); (G.W.); (F.W.); (X.Z.); (Y.Z.); (K.X.); (Y.L.)
| | - Wenping Zhang
- School of Breeding and Multiplication (Sanya Institute of Breeding and Multiplication), Hainan University, Haikou 572025, China; (H.G.); (G.W.); (F.W.); (X.Z.); (Y.Z.); (K.X.); (Y.L.)
| | - Kuan Zhao
- Changchun Academy of Agricultural Science, Changchun 130118, China
| | - Yan Jing
- School of Breeding and Multiplication (Sanya Institute of Breeding and Multiplication), Hainan University, Haikou 572025, China; (H.G.); (G.W.); (F.W.); (X.Z.); (Y.Z.); (K.X.); (Y.L.)
| | - Chen Feng
- School of Breeding and Multiplication (Sanya Institute of Breeding and Multiplication), Hainan University, Haikou 572025, China; (H.G.); (G.W.); (F.W.); (X.Z.); (Y.Z.); (K.X.); (Y.L.)
| | - Nan Wang
- Changchun Academy of Agricultural Science, Changchun 130118, China
| | - Haiyan Li
- School of Breeding and Multiplication (Sanya Institute of Breeding and Multiplication), Hainan University, Haikou 572025, China; (H.G.); (G.W.); (F.W.); (X.Z.); (Y.Z.); (K.X.); (Y.L.)
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Puga MI, Poza-Carrión C, Martinez-Hevia I, Perez-Liens L, Paz-Ares J. Recent advances in research on phosphate starvation signaling in plants. JOURNAL OF PLANT RESEARCH 2024; 137:315-330. [PMID: 38668956 PMCID: PMC11081996 DOI: 10.1007/s10265-024-01545-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/18/2024] [Accepted: 04/17/2024] [Indexed: 05/12/2024]
Abstract
Phosphorus is indispensable for plant growth and development, with its status crucial for determining crop productivity. Plants have evolved various biochemical, morphological, and developmental responses to thrive under conditions of low P availability, as inorganic phosphate (Pi), the primary form of P uptake, is often insoluble in soils. Over the past 25 years, extensive research has focused on understanding these responses, collectively forming the Pi starvation response system. This effort has not only expanded our knowledge of strategies to cope with Pi starvation (PS) but also confirmed their adaptive significance. Moreover, it has identified and characterized numerous components of the intricate regulatory network governing P homeostasis. This review emphasizes recent advances in PS signaling, particularly highlighting the physiological importance of local PS signaling in inhibiting primary root growth and uncovering the role of TORC1 signaling in this process. Additionally, advancements in understanding shoot-root Pi allocation and a novel technique for studying Pi distribution in plants are discussed. Furthermore, emerging data on the regulation of plant-microorganism interactions by the PS regulatory system, crosstalk between the signaling pathways of phosphate starvation, phytohormones and immunity, and recent studies on natural variation in Pi homeostasis are addressed.
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Affiliation(s)
- María Isabel Puga
- Department of Plant Molecular Genetics, Centro Nacional de Biotecnologia-CSIC Campus Universidad Autonoma, Darwin 3, Madrid, 28049, Spain
| | - César Poza-Carrión
- Department of Plant Molecular Genetics, Centro Nacional de Biotecnologia-CSIC Campus Universidad Autonoma, Darwin 3, Madrid, 28049, Spain
| | - Iris Martinez-Hevia
- Department of Plant Molecular Genetics, Centro Nacional de Biotecnologia-CSIC Campus Universidad Autonoma, Darwin 3, Madrid, 28049, Spain
| | - Laura Perez-Liens
- Department of Plant Molecular Genetics, Centro Nacional de Biotecnologia-CSIC Campus Universidad Autonoma, Darwin 3, Madrid, 28049, Spain
| | - Javier Paz-Ares
- Department of Plant Molecular Genetics, Centro Nacional de Biotecnologia-CSIC Campus Universidad Autonoma, Darwin 3, Madrid, 28049, Spain.
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