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Shi H, Yun P, Zhu Y, Wang L, Wang Y, Li P, Zhou H, Cheng S, Liu R, Gao G, Zhang Q, Xiao J, Li Y, Xiong L, You A, He Y. Natural variation of WBR7 confers rice high yield and quality by modulating sucrose supply in sink organs. PLANT BIOTECHNOLOGY JOURNAL 2024. [PMID: 38943653 DOI: 10.1111/pbi.14420] [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: 05/17/2024] [Accepted: 06/09/2024] [Indexed: 07/01/2024]
Abstract
Grain chalkiness is an undesirable trait that negatively regulates grain yield and quality in rice. However, the regulatory mechanism underlying chalkiness is complex and remains unclear. We identified a positive regulator of white-belly rate (WBR). The WBR7 gene encodes sucrose synthase 3 (SUS3). A weak functional allele of WBR7 is beneficial in increasing grain yield and quality. During the domestication of indica rice, a functional G/A variation in the coding region of WBR7 resulted in an E541K amino acid substitution in the GT-4 glycosyltransferase domain, leading to a significant decrease in decomposition activity of WBR7A (allele in cultivar Jin23B) compared with WBR7G (allele in cultivar Beilu130). The NIL(J23B) and knockout line NIL(BL130)KO exhibited lower WBR7 decomposition activity than that of NIL(BL130) and NIL(J23B)COM, resulting in less sucrose decomposition and metabolism in the conducting organs. This caused more sucrose transportation to the endosperm, enhancing the synthesis of storage components in the endosperm and leading to decreased WBR. More sucrose was also transported to the anthers, providing sufficient substrate and energy supply for pollen maturation and germination, ultimately leading to an increase rate of seed setting and increased grain yield. Our findings elucidate a mechanism for enhancing rice yield and quality by modulating sucrose metabolism and allocation, and provides a valuable allele for improved rice quality.
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Affiliation(s)
- Huan Shi
- National Key Laboratory of Crop Genetic Improvement, Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan, China
| | - Peng Yun
- Rice Research Institute, Anhui Academy of Agricultural Sciences, Hefei, China
| | - Yun Zhu
- National Key Laboratory of Crop Genetic Improvement, Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan, China
| | - Lu Wang
- National Key Laboratory of Crop Genetic Improvement, Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan, China
| | - Yipei Wang
- National Key Laboratory of Crop Genetic Improvement, Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan, China
| | - Pingbo Li
- Institute of Wetland Agriculture and Ecology, Shandong Academy of Agricultural Sciences, Jinan, China
| | - Hao Zhou
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Rice Research Institute, Sichuan Agricultural University, Chengdu, China
| | - Shiyuan Cheng
- National Key Laboratory of Crop Genetic Improvement, Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan, China
| | - Rongjia Liu
- National Key Laboratory of Crop Genetic Improvement, Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan, China
| | - Guanjun Gao
- National Key Laboratory of Crop Genetic Improvement, Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan, China
| | - Qinglu Zhang
- National Key Laboratory of Crop Genetic Improvement, Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan, China
| | - Jinghua Xiao
- National Key Laboratory of Crop Genetic Improvement, Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan, China
| | - Yibo Li
- National Key Laboratory of Crop Genetic Improvement, Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan, China
| | - Lizhong Xiong
- National Key Laboratory of Crop Genetic Improvement, Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan, China
| | - Aiqing You
- Institute of Food Crop, Hubei Academy of Agricultural Science, Wuhan, China
| | - Yuqing He
- National Key Laboratory of Crop Genetic Improvement, Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan, China
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Long C, Du Y, Zeng M, Deng X, Zhang Z, Liu D, Zeng Y. Relationship between Chalkiness and the Structural and Physicochemical Properties of Rice Starch at Different Nighttime Temperatures during the Early Grain-Filling Stage. Foods 2024; 13:1516. [PMID: 38790818 PMCID: PMC11120102 DOI: 10.3390/foods13101516] [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: 03/30/2024] [Revised: 05/02/2024] [Accepted: 05/06/2024] [Indexed: 05/26/2024] Open
Abstract
The chalkiness, starch fine structure, and physiochemical properties of rice starch were analyzed and their correlations were investigated under different nighttime temperatures during the early grain-filling stage. Compared to MT, medium temperature (MT) and low (LNT) and high (HNT) nighttime temperatures resulted in an increased chalky grain rate (CGR) and chalkiness degree (CD). LNT mainly affected the chalkiness by increasing peak1 (short branch chains of amylopectin), the branching degree, and the proportion of small starch granules but decreasing peak2 (long branch chains of amylopectin) and peak3 (amylose branches). This altered the pasting properties, such as by increasing the peak viscosity and final viscosity. However, HNT mainly affected the chalkiness by increasing peak2 and the crystallinity degree but decreasing peak1 and peak3. Regarding the thermal properties, HNT also elevated peak and conclusion temperatures. The CGR and CD were significantly and positively correlated with the proportions of small and medium starch granules, peak1, branching degree, gelatinization enthalpy, setback viscosity, and pasting time but markedly and negatively correlated with the proportion of large starch granules, amylose content, peak3, peak viscosity, and breakdown viscosity. These findings suggest that LNT and HNT disrupted the starch structure, resulting in increased chalkiness. However, their mechanisms of action differ.
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Affiliation(s)
- Changzhi Long
- Key Laboratory of Crop Physiology, Ecology and Genetic Breeding, Ministry of Education, Jiangxi Agricultural University, Nanchang 330045, China; (C.L.); (Y.D.); (M.Z.); (X.D.); (Z.Z.); (D.L.)
| | - Yanli Du
- Key Laboratory of Crop Physiology, Ecology and Genetic Breeding, Ministry of Education, Jiangxi Agricultural University, Nanchang 330045, China; (C.L.); (Y.D.); (M.Z.); (X.D.); (Z.Z.); (D.L.)
- Lushan Botanical Garden, Chinese Academy of Sciences, Lushan 332900, China
| | - Mingyang Zeng
- Key Laboratory of Crop Physiology, Ecology and Genetic Breeding, Ministry of Education, Jiangxi Agricultural University, Nanchang 330045, China; (C.L.); (Y.D.); (M.Z.); (X.D.); (Z.Z.); (D.L.)
| | - Xueyun Deng
- Key Laboratory of Crop Physiology, Ecology and Genetic Breeding, Ministry of Education, Jiangxi Agricultural University, Nanchang 330045, China; (C.L.); (Y.D.); (M.Z.); (X.D.); (Z.Z.); (D.L.)
| | - Zhengwei Zhang
- Key Laboratory of Crop Physiology, Ecology and Genetic Breeding, Ministry of Education, Jiangxi Agricultural University, Nanchang 330045, China; (C.L.); (Y.D.); (M.Z.); (X.D.); (Z.Z.); (D.L.)
| | - Dong Liu
- Key Laboratory of Crop Physiology, Ecology and Genetic Breeding, Ministry of Education, Jiangxi Agricultural University, Nanchang 330045, China; (C.L.); (Y.D.); (M.Z.); (X.D.); (Z.Z.); (D.L.)
| | - Yongjun Zeng
- Key Laboratory of Crop Physiology, Ecology and Genetic Breeding, Ministry of Education, Jiangxi Agricultural University, Nanchang 330045, China; (C.L.); (Y.D.); (M.Z.); (X.D.); (Z.Z.); (D.L.)
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Mahmood N, Liu Y, Zheng X, Munir Z, Pandiselvam R, Zhang Y, Ali Saleemi M, Yves H, Sufyan M, Lei D. Influences of emerging drying technologies on rice quality. Food Res Int 2024; 184:114264. [PMID: 38609240 DOI: 10.1016/j.foodres.2024.114264] [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: 12/16/2023] [Revised: 03/16/2024] [Accepted: 03/19/2024] [Indexed: 04/14/2024]
Abstract
Rice is an important staple food in the world. Drying is an important step in the post-harvest handling of rice and can influence rice qualities and thus play a key role in determining rice commercial and nutritional value. In rice processing, traditional drying methods may lead to longer drying times, greater energy consumption, and unintended quality losses. Thus, it is imperative to improve the physical, chemical, and milling properties of rice while preserving its nutritional value, flavor, and appearance as much as possible. Additionally, it is necessary to increase the efficiency with which heat energy is utilized during the thermal processing of freshly harvested paddy. Moreover, this review provides insights into the current application status of six different innovative drying technologies such as radio frequency (RF) drying, microwave (MW) drying, infrared (IR) drying, vacuum drying (VD), superheated steam (SHS) drying, fluidized bed (FB) drying along with their effect on the quality of rice such as color, flavor, crack ratio, microstructure and morphology, bioactive components and antioxidant activity as well asstarch content and glycemic index. Dielectric methods of drying due to volumetric heating results in enhanced drying rate, improved heating uniformity, reduced crack ratio, increased head rice yield and better maintain taste value of paddy grains. These novel emerging drying techniques increased the interactions between hydrated proteins and swollen starch granules, resulting in enhanced viscosity of rice flour and promoted starch gelatinization and enhanced antioxidant activity which is helpful to produce functional rice. Moreover, this review not only highlights the existing challenges posed by these innovative thermal technologies but also presents potential solutions. Additionally, the combination of these technologies to optimize operating conditions can further boost their effectiveness in enhancing the drying process. Nevertheless, future studies are essential to gain a deeper understanding of the mechanism of quality changes induced by emerging processing technologies. This knowledge will help expand the application of these techniques in the rice processing industry.
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Affiliation(s)
- Naveed Mahmood
- College of Engineering, China Agricultural University, Beijing 100083, China.
| | - Yanhong Liu
- College of Engineering, China Agricultural University, Beijing 100083, China.
| | - Xu Zheng
- College of Food Science, Northeast Agricultural University, Harbin, Heilongjiang 150030, China
| | - Zeeshan Munir
- Department of Agricultural Engineering, University of Kassel, Nordbahnhofstr. 1a, Witzenhausen 37213, Germany
| | - R Pandiselvam
- Division of Physiology, Biochemistry and Post-Harvest Technology, ICAR-Central Plantation Crops Research Institute, Kasaragod, 671124, Kerala, India
| | - Yue Zhang
- College of Engineering, China Agricultural University, Beijing 100083, China
| | - Mansab Ali Saleemi
- Department of Molecular Microbiology and Immunology, University of Texas at San Antonio, San Antonio, TX, United States
| | - Harimana Yves
- College of Food Science, Northeast Agricultural University, Harbin, Heilongjiang 150030, China
| | - Muhammad Sufyan
- College of Biological Sciences, China Agricultural University, Beijing 100083, China
| | - Dengwen Lei
- College of Engineering, China Agricultural University, Beijing 100083, China
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Riaz A, Thomas J, Ali HH, Zaheer MS, Ahmad N, Pereira A. High night temperature stress on rice ( Oryza sativa) - insights from phenomics to physiology. A review. FUNCTIONAL PLANT BIOLOGY : FPB 2024; 51:FP24057. [PMID: 38815128 DOI: 10.1071/fp24057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/11/2024] [Accepted: 05/12/2024] [Indexed: 06/01/2024]
Abstract
Rice (Oryza sativa ) faces challenges to yield and quality due to urbanisation, deforestation and climate change, which has exacerbated high night temperature (HNT). This review explores the impacts of HNT on the physiological, molecular and agronomic aspects of rice growth. Rise in minimum temperature threatens a potential 41% reduction in rice yield by 2100. HNT disrupts rice growth stages, causing reduced seed germination, biomass, spikelet sterility and poor grain development. Recent findings indicate a 4.4% yield decline for every 1°C increase beyond 27°C, with japonica ecotypes exhibiting higher sensitivity than indica. We examine the relationships between elevated CO2 , nitrogen regimes and HNT, showing that the complexity of balancing positive CO2 effects on biomass with HNT challenges. Nitrogen enrichment proves crucial during the vegetative stage but causes disruption to reproductive stages, affecting grain yield and starch synthesis. Additionally, we elucidate the impact of HNT on plant respiration, emphasising mitochondrial respiration, photorespiration and antioxidant responses. Genomic techniques, including CRISPR-Cas9, offer potential for manipulating genes for HNT tolerance. Plant hormones and carbohydrate enzymatic activities are explored, revealing their intricate roles in spikelet fertility, grain size and starch metabolism under HNT. Gaps in understanding genetic factors influencing heat tolerance and potential trade-offs associated with hormone applications remain. The importance of interdisciplinary collaboration is needed to provide a holistic approach. Research priorities include the study of regulatory mechanisms, post-anthesis effects, cumulative HNT exposure and the interaction between climate variability and HNT impact to provide a research direction to enhance rice resilience in a changing climate.
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Affiliation(s)
- Awais Riaz
- Department of Crop, Soil, and Environmental Sciences, Faculty of Agriculture Food and Life Sciences, University of Arkansas System Division of Agriculture, Fayetteville, AR 72701, USA
| | - Julie Thomas
- Department of Crop, Soil, and Environmental Sciences, Faculty of Agriculture Food and Life Sciences, University of Arkansas System Division of Agriculture, Fayetteville, AR 72701, USA
| | - Hafiz Haider Ali
- Department of Crop, Soil, and Environmental Sciences, Faculty of Agriculture Food and Life Sciences, University of Arkansas System Division of Agriculture, Fayetteville, AR 72701, USA; and Department of Agriculture, Government College University Lahore, Lahore 54000, Pakistan; and Department of Plant Sciences, Aberdeen Research & Extension Center, University of Idaho, Aberdeen, ID, USA
| | - Muhammad Saqlain Zaheer
- Department of Agricultural Engineering, Khwaja Fareed University of Engineering and Information Technology, Rahim Yar Khan, Pakistan
| | - Naushad Ahmad
- Department of Chemistry, College of Science, King Saud University, Riyadh11451, Saudi Arabia
| | - Andy Pereira
- Department of Crop, Soil, and Environmental Sciences, Faculty of Agriculture Food and Life Sciences, University of Arkansas System Division of Agriculture, Fayetteville, AR 72701, USA
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Zheng C, Niu S, Yan Y, Zhou G, Peng Y, He Y, Zhou J, Li Y, Xie X. Moderate Salinity Stress Affects Rice Quality by Influencing Expression of Amylose- and Protein-Content-Associated Genes. Int J Mol Sci 2024; 25:4042. [PMID: 38612852 PMCID: PMC11012469 DOI: 10.3390/ijms25074042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2024] [Revised: 03/29/2024] [Accepted: 04/02/2024] [Indexed: 04/14/2024] Open
Abstract
Salinity is an environmental stress that severely impacts rice grain yield and quality. However, limited information is available on the molecular mechanism by which salinity reduces grain quality. In this study, we investigated the milling, appearance, eating and cooking, and nutritional quality among three japonica rice cultivars grown either under moderate salinity with an electrical conductivity of 4 dS/m or under non-saline conditions in a paddy field in Dongying, Shandong, China. Moderate salinity affected rice appearance quality predominantly by increasing chalkiness rate and chalkiness degree and affected rice eating and cooking and nutritional quality predominantly by decreasing amylose content and increasing protein content. We compared the expression levels of genes determining grain chalkiness, amylose content, and protein content in developing seeds (0, 5, 10, 15, and 20 days after flowering) of plants grown under saline or non-saline conditions. The chalkiness-related gene Chalk5 was up-regulated and WHITE-CORE RATE 1 was repressed. The genes Nuclear factor Y and Wx, which determine amylose content, were downregulated, while protein-content-associated genes OsAAP6 and OsGluA2 were upregulated by salinity in the developing seeds. These findings suggest some target genes that may be utilized to improve the grain quality under salinity stress conditions via gene-pyramiding breeding approaches.
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Affiliation(s)
- Chongke Zheng
- Institute of Wetland Agriculture and Ecology, Shandong Rice Engineering Technology Research Center, Shandong Academy of Agricultural Sciences, Jinan 250100, China; (C.Z.); (S.N.); (G.Z.); (Y.P.); (Y.H.); (Y.L.)
| | - Shulin Niu
- Institute of Wetland Agriculture and Ecology, Shandong Rice Engineering Technology Research Center, Shandong Academy of Agricultural Sciences, Jinan 250100, China; (C.Z.); (S.N.); (G.Z.); (Y.P.); (Y.H.); (Y.L.)
| | - Ying Yan
- Crop Breeding and Cultivation Research Institute, Shanghai Academy of Agricultural Sciences, Shanghai 201403, China;
| | - Guanhua Zhou
- Institute of Wetland Agriculture and Ecology, Shandong Rice Engineering Technology Research Center, Shandong Academy of Agricultural Sciences, Jinan 250100, China; (C.Z.); (S.N.); (G.Z.); (Y.P.); (Y.H.); (Y.L.)
| | - Yongbin Peng
- Institute of Wetland Agriculture and Ecology, Shandong Rice Engineering Technology Research Center, Shandong Academy of Agricultural Sciences, Jinan 250100, China; (C.Z.); (S.N.); (G.Z.); (Y.P.); (Y.H.); (Y.L.)
| | - Yanan He
- Institute of Wetland Agriculture and Ecology, Shandong Rice Engineering Technology Research Center, Shandong Academy of Agricultural Sciences, Jinan 250100, China; (C.Z.); (S.N.); (G.Z.); (Y.P.); (Y.H.); (Y.L.)
| | - Jinjun Zhou
- Institute of Crop Germplasm Resources, Shandong Academy of Agricultural Sciences, Jinan 250100, China;
| | - Yaping Li
- Institute of Wetland Agriculture and Ecology, Shandong Rice Engineering Technology Research Center, Shandong Academy of Agricultural Sciences, Jinan 250100, China; (C.Z.); (S.N.); (G.Z.); (Y.P.); (Y.H.); (Y.L.)
| | - Xianzhi Xie
- Institute of Wetland Agriculture and Ecology, Shandong Rice Engineering Technology Research Center, Shandong Academy of Agricultural Sciences, Jinan 250100, China; (C.Z.); (S.N.); (G.Z.); (Y.P.); (Y.H.); (Y.L.)
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Chen Z, Zhou W, Guo X, Ling S, Li W, Wang X, Yao J. Heat Stress Responsive Aux/IAA Protein, OsIAA29 Regulates Grain Filling Through OsARF17 Mediated Auxin Signaling Pathway. RICE (NEW YORK, N.Y.) 2024; 17:16. [PMID: 38374238 PMCID: PMC10876508 DOI: 10.1186/s12284-024-00694-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/11/2023] [Accepted: 02/13/2024] [Indexed: 02/21/2024]
Abstract
High temperature during grain filling considerably reduces yield and quality in rice, but its molecular mechanisms are not fully understood. We investigated the functions of a seed preferentially expressed Aux/IAA gene, OsIAA29, under high temperature-stress in grain filling using CRISPR/Cas9, RNAi, and overexpression. We observed that the osiaa29 had a higher percentage of shrunken and chalkiness seed, as well as lower 1000-grain weight than ZH11 under high temperature. Meanwhile, the expression of OsIAA29 was induced and the IAA content was remarkably reduced in the ZH11 seeds under high temperature. In addition, OsIAA29 may enhance the transcriptional activation activity of OsARF17 through competition with OsIAA21 binding to OsARF17. Finally, chromatin immunoprecipitation quantitative real-time PCR (ChIP-qPCR) results proved that OsARF17 regulated expression of several starch and protein synthesis related genes (like OsPDIL1-1, OsSS1, OsNAC20, OsSBE1, and OsC2H2). Therefore, OsIAA29 regulates seed development in high temperature through competition with OsIAA21 in the binding to OsARF17, mediating auxin signaling pathway in rice. This study provides a theoretical basis and gene resources for auxin signaling and effective molecular design breeding.
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Affiliation(s)
- Zhanghao Chen
- College of Life Science and Technology, Huazhong Agricultural University, Wuhan, 430070, China
| | - Wei Zhou
- College of Life Sciences, Xinyang Normal University, Xinyang, 464000, China
| | - Xianyu Guo
- College of Life Science and Technology, Huazhong Agricultural University, Wuhan, 430070, China
| | - Sheng Ling
- College of Life Science and Technology, Huazhong Agricultural University, Wuhan, 430070, China
| | - Wang Li
- College of Life Science and Technology, Huazhong Agricultural University, Wuhan, 430070, China
| | - Xin Wang
- Key Laboratory of Molecular Biology and Genetic Engineering of Jiangxi Province, School of Life Sciences, Nanchang University, Nanchang, 330031, China.
| | - Jialing Yao
- College of Life Science and Technology, Huazhong Agricultural University, Wuhan, 430070, China.
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Shah IH, Manzoor MA, Jinhui W, Li X, Hameed MK, Rehaman A, Li P, Zhang Y, Niu Q, Chang L. Comprehensive review: Effects of climate change and greenhouse gases emission relevance to environmental stress on horticultural crops and management. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2024; 351:119978. [PMID: 38169258 DOI: 10.1016/j.jenvman.2023.119978] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/06/2023] [Revised: 11/30/2023] [Accepted: 12/26/2023] [Indexed: 01/05/2024]
Abstract
Global climate change exerts a significant impact on sustainable horticultural crop production and quality. Rising Global temperatures have compelled the agricultural community to adjust planting and harvesting schedules, often necessitating earlier crop cultivation. Notably, climate change introduces a suite of ominous factors, such as greenhouse gas emissions (CGHs), including elevated temperature, increased carbon dioxide (CO2) concentrations, nitrous oxide (N2O) and methane (CH4) ozone depletion (O3), and deforestation, all of which intensify environmental stresses on crops. Consequently, climate change stands poised to adversely affect crop yields and livestock production. Therefore, the primary objective of the review article is to furnish a comprehensive overview of the multifaceted factors influencing horticulture production, encompassing fruits, vegetables, and plantation crops with a particular emphasis on greenhouse gas emissions and environmental stressors such as high temperature, drought, salinity, and emission of CO2. Additionally, this review will explore the implementation of novel horticultural crop varieties and greenhouse technology that can contribute to mitigating the adverse impact of climate change on agricultural crops.
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Affiliation(s)
- Iftikhar Hussain Shah
- School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai 200240, PR China
| | - Muhammad Aamir Manzoor
- School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai 200240, PR China
| | - Wu Jinhui
- School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai 200240, PR China
| | - Xuyang Li
- School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai 200240, PR China
| | - Muhammad Khalid Hameed
- School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai 200240, PR China
| | - Asad Rehaman
- School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai 200240, PR China
| | - Pengli Li
- School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai 200240, PR China
| | - Yidong Zhang
- School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai 200240, PR China
| | - Qingliang Niu
- School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai 200240, PR China
| | - Liying Chang
- School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai 200240, PR China.
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Yin X, Chen X, Hu J, Zhu L, Zhang H, Hong Y. Effects of distribution, structure and interactions of starch, protein and cell walls on textural formation of cooked rice: A review. Int J Biol Macromol 2023; 253:127403. [PMID: 37832614 DOI: 10.1016/j.ijbiomac.2023.127403] [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: 07/17/2023] [Revised: 10/07/2023] [Accepted: 10/10/2023] [Indexed: 10/15/2023]
Abstract
The constitution and forms of rice determine its processing and cooking properties and further control the cooked rice quality. As the two main components, starch and protein content correlations and their characteristics have been extensively explored. However, rice is mainly consumed as polished kernels, components distribution, cytoplasmic matrix, and cell walls work together, and the properties of extracted components or flour are difficult to reflect the quality of cooked rice accurately. Thus, this review summarizes the multi-scale structure changes of main components during real rice cooking conditions. The dynamic thermal changes and leaching behaviors in rice kernels are compared with pure starch or rice flour. The in situ changes and interactions of starch granules, protein bodies, and cell walls during cooking are reviewed. Based on this, different textural evaluation methods are compared, and the advantages and disadvantages are pointed out. The oral chewing perception and bionic chewing simulation for textual evaluation have gradually become hot. Both rice quality controllers and eating quality evaluators attempt to establish an accurate quality evaluation system with the increased demand for high-quality rice.
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Affiliation(s)
- Xianting Yin
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, China; National Engineering Research Center for Functional Food, Jiangnan University, Wuxi 214122, China; State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi 214122, China
| | - Xiaoyu Chen
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, China; National Engineering Research Center for Functional Food, Jiangnan University, Wuxi 214122, China; State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi 214122, China
| | - Jiali Hu
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, China; National Engineering Research Center for Functional Food, Jiangnan University, Wuxi 214122, China; State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi 214122, China
| | - Ling Zhu
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, China; National Engineering Research Center for Functional Food, Jiangnan University, Wuxi 214122, China; State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi 214122, China.
| | - Hui Zhang
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, China; National Engineering Research Center for Functional Food, Jiangnan University, Wuxi 214122, China; State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi 214122, China
| | - Yan Hong
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, China; National Engineering Research Center for Functional Food, Jiangnan University, Wuxi 214122, China; State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi 214122, China
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9
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Zhao Y, Yin T, Ran X, Liu W, Shen Y, Guo H, Peng Y, Zhang C, Ding Y, Tang S. Stimulus-responsive proteins involved in multi-process regulation of storage substance accumulation during rice grain filling under elevated temperature. BMC PLANT BIOLOGY 2023; 23:547. [PMID: 37936114 PMCID: PMC10631114 DOI: 10.1186/s12870-023-04563-7] [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: 04/01/2023] [Accepted: 10/26/2023] [Indexed: 11/09/2023]
Abstract
BACKGROUND The intensified global warming during grain filling deteriorated rice quality, in particular increasing the frequency of chalky grains which markedly impact market value. The formation of rice quality is a complex process influenced by multiple genes, proteins and physiological metabolic processes. Proteins responsive to stimulus can adjust the ability of plants to respond to unfavorable environments, which may be an important protein involved in the regulation of quality formation under elevated temperature. However, relatively few studies have hindered our further understanding of rice quality formation under elevated temperature. RESULTS We conducted the actual field elevated temperature experiment and performed proteomic analysis of rice grains at the early stage of grain filling. Starting with the response to stimulus in GO annotation, 22 key proteins responsive to stimulus were identified in the regulation of grain filling and response to elevated temperature. Among the proteins responsive to stimulus, during grain filling, an increased abundance of signal transduction and other stress response proteins, a decreased abundance of reactive oxygen species-related proteins, and an increased accumulation of storage substance metabolism proteins consistently contributed to grain filling. However, the abundance of probable indole-3-acetic acid-amido synthetase GH3.4, probable indole-3-acetic acid-amido synthetase GH3.8 and CBL-interacting protein kinase 9 belonged to signal transduction were inhibited under elevated temperature. In the reactive oxygen species-related protein, elevated temperature increased the accumulation of cationic peroxidase SPC4 and persulfide dioxygenase ETHE1 homolog to maintain normal physiological homeostasis. The increased abundance of alpha-amylase isozyme 3E and seed allergy protein RA5 was related to the storage substance metabolism, which regulated starch and protein accumulation under elevated temperature. CONCLUSION Auxin synthesis and calcium signal associated with signal transduction, other stress responses, protein transport and modification, and reactive oxygen species-related proteins may be key proteins responsive to stimulus in response to elevated temperature. Alpha-amylase isozyme 3E and seed allergy protein RA5 may be the key proteins to regulate grain storage substance accumulation and further influence quality under elevated temperature. This study enriched the regulatory factors involved in the response to elevated temperature and provided a new idea for a better understanding of grain response to temperature.
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Affiliation(s)
- Yufei Zhao
- College of Agronomy, Nanjing Agricultural University, 210095, Nanjing, People's Republic of China
| | - Tongyang Yin
- College of Agronomy, Nanjing Agricultural University, 210095, Nanjing, People's Republic of China
| | - Xuan Ran
- College of Agronomy, Nanjing Agricultural University, 210095, Nanjing, People's Republic of China
| | - Wenzhe Liu
- College of Agronomy, Nanjing Agricultural University, 210095, Nanjing, People's Republic of China
| | - Yingying Shen
- College of Agronomy, Nanjing Agricultural University, 210095, Nanjing, People's Republic of China
| | - Hao Guo
- College of Agronomy, Nanjing Agricultural University, 210095, Nanjing, People's Republic of China
| | - Yuxuan Peng
- College of Agronomy, Nanjing Agricultural University, 210095, Nanjing, People's Republic of China
| | - Chen Zhang
- College of Agronomy, Nanjing Agricultural University, 210095, Nanjing, People's Republic of China
| | - Yanfeng Ding
- College of Agronomy, Nanjing Agricultural University, 210095, Nanjing, People's Republic of China
- Jiangsu Collaborative Innovation Center for Modern Crop Production, 210095, Nanjing, People's Republic of China
| | - She Tang
- College of Agronomy, Nanjing Agricultural University, 210095, Nanjing, People's Republic of China.
- Jiangsu Collaborative Innovation Center for Modern Crop Production, 210095, Nanjing, People's Republic of China.
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10
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Wu W, Li Z, Xi M, Tu D, Xu Y, Zhou Y, Zhang Z. Ratoon Rice System of Production: A Rapid Growth Pattern of Multiple Cropping in China: A Review. PLANTS (BASEL, SWITZERLAND) 2023; 12:3446. [PMID: 37836186 PMCID: PMC10574667 DOI: 10.3390/plants12193446] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/09/2023] [Revised: 08/27/2023] [Accepted: 09/28/2023] [Indexed: 10/15/2023]
Abstract
In this review, the significance of ratoon rice was introduced, and the research status and development trends of ratoon rice were also summarized. It is pointed out that mechanically harvested ratoon rice is the developing direction of future ratoon rice. On this basis, we analyzed the relationship between the yield of ratoon rice and many factors, such as variety characteristics, sowing date, water control, fertilizer, and many others. It is important to construct a comprehensive and practical evaluation system for rice regeneration that can provide a basis for high-yield cultivation of machine-harvested ratoon rice. At the same time, it is suggested that combining high-yield cultivation with the green ecological efficiency of rice can achieve better production and improve the quality of rice. Finally, some problems with ratoon rice development were put forward. An in-depth study on the rhizosphere biology and regulation techniques of ratoon rice and the effective ecological compensation mechanism increased the capacity and quality of ratoon rice. Further, the functioning of such research can enhance the planting area for ratoon rice and improve food security.
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Affiliation(s)
- Wenge Wu
- Rice Research Institute, Anhui Academy of Agricultural Sciences, Hefei 230031, China; (Z.L.); (M.X.); (D.T.); (Y.X.); (Y.Z.)
- College of Agriculture, Anhui Science and Technology University, Chuzhou 239000, China
| | - Zhong Li
- Rice Research Institute, Anhui Academy of Agricultural Sciences, Hefei 230031, China; (Z.L.); (M.X.); (D.T.); (Y.X.); (Y.Z.)
- Key Laboratory of Crop Ecology and Molecular Physiology, College of Life Sciences, Fujian Agriculture and Forestry University, Fuzhou 350002, China;
| | - Min Xi
- Rice Research Institute, Anhui Academy of Agricultural Sciences, Hefei 230031, China; (Z.L.); (M.X.); (D.T.); (Y.X.); (Y.Z.)
| | - Debao Tu
- Rice Research Institute, Anhui Academy of Agricultural Sciences, Hefei 230031, China; (Z.L.); (M.X.); (D.T.); (Y.X.); (Y.Z.)
| | - Youzun Xu
- Rice Research Institute, Anhui Academy of Agricultural Sciences, Hefei 230031, China; (Z.L.); (M.X.); (D.T.); (Y.X.); (Y.Z.)
| | - Yongjin Zhou
- Rice Research Institute, Anhui Academy of Agricultural Sciences, Hefei 230031, China; (Z.L.); (M.X.); (D.T.); (Y.X.); (Y.Z.)
| | - Zhixing Zhang
- Key Laboratory of Crop Ecology and Molecular Physiology, College of Life Sciences, Fujian Agriculture and Forestry University, Fuzhou 350002, China;
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11
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Gann PJI, Dharwadker D, Cherati SR, Vinzant K, Khodakovskaya M, Srivastava V. Targeted mutagenesis of the vacuolar H + translocating pyrophosphatase gene reduces grain chalkiness in rice. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2023; 115:1261-1276. [PMID: 37256847 DOI: 10.1111/tpj.16317] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/16/2022] [Revised: 05/12/2023] [Accepted: 05/18/2023] [Indexed: 06/02/2023]
Abstract
Grain chalkiness is a major concern in rice production because it impacts milling yield and cooking quality, eventually reducing market value of the rice. A gene encoding vacuolar H+ translocating pyrophosphatase (V-PPase) is a major quantitative trait locus in indica rice, controlling grain chalkiness. Higher transcriptional activity of this gene is associated with increased chalk content. However, whether the suppression of V-PPase could reduce chalkiness is not clear. Furthermore, natural variation in the chalkiness of japonica rice has not been linked with V-PPase. Here, we describe promoter targeting of the japonica V-PPase allele that led to reduced grain chalkiness and the development of more translucent grains. Disruption of a putative GATA element by clustered regularly interspaced short palindromic repeats (CRISPR)/CRISPR-associated protein 9 suppressed V-PPase activity, reduced grain chalkiness and impacted post-germination growth that could be rescued by the exogenous supply of sucrose. The mature grains of the targeted lines showed a much lower percentage of large or medium chalk. Interestingly, the targeted lines developed a significantly lower chalk under heat stress, a major inducer of grain chalk. Metabolomic analysis showed that pathways related to starch and sugar metabolism were affected in the developing grains of the targeted lines that correlated with higher inorganic pyrophosphate and starch contents and upregulation of starch biosynthesis genes. In summary, we show a biotechnology approach of reducing grain chalkiness in rice by downregulating the transcriptional activity of V-PPase that presumably leads to altered metabolic rates, including starch biosynthesis, resulting in more compact packing of starch granules and formation of translucent rice grains.
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Affiliation(s)
- Peter James Icalia Gann
- Cell and Molecular Biology Program, University of Arkansas, 115 Plant Science Building, Fayetteville, AR, 72701, USA
- Department of Crop, Soil and Environmental Sciences, University of Arkansas Division of Agriculture, 115 Plant Science Building, Fayetteville, AR, 72701, USA
| | - Dominic Dharwadker
- Department of Chemistry and Biochemistry, University of Arkansas, 119 Chemistry Building, Fayetteville, West Maple Street, AR, 72701, USA
| | - Sajedeh Rezaei Cherati
- Department of Biology, University of Arkansas Little Rock, 2801 S University Avenue, Little Rock, AR, 727704, USA
| | - Kari Vinzant
- Department of Biology, University of Arkansas Little Rock, 2801 S University Avenue, Little Rock, AR, 727704, USA
| | - Mariya Khodakovskaya
- Department of Biology, University of Arkansas Little Rock, 2801 S University Avenue, Little Rock, AR, 727704, USA
| | - Vibha Srivastava
- Cell and Molecular Biology Program, University of Arkansas, 115 Plant Science Building, Fayetteville, AR, 72701, USA
- Department of Crop, Soil and Environmental Sciences, University of Arkansas Division of Agriculture, 115 Plant Science Building, Fayetteville, AR, 72701, USA
- Department of Horticulture, University of Arkansas Division of Agriculture, 315 Plant Science Building, Fayetteville, AR, 72701, USA
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12
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Tang X, Zhong W, Wang K, Gong X, Xia Y, Nong J, Xiao L, Xia S. Regulation of Grain Chalkiness and Starch Metabolism by FLO2 Interaction Factor 3, a bHLH Transcription Factor in Oryza sativa. Int J Mol Sci 2023; 24:12778. [PMID: 37628959 PMCID: PMC10454616 DOI: 10.3390/ijms241612778] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2023] [Revised: 08/04/2023] [Accepted: 08/11/2023] [Indexed: 08/27/2023] Open
Abstract
Chalkiness is a key determinant that directly affects the appearance and cooking quality of rice grains. Previously, Floury endosperm 2 (FLO2) was reported to be involved in the formation of rice chalkiness; however, its regulation mechanism is still unclear. Here, FLO2 interaction factor 3 (OsFIF3), a bHLH transcription factor, was identified and analyzed in Oryza sativa. A significant increase in chalkiness was observed in OsFIF3-overexpressed grains, coupled with a round, hollow filling of starch granules and reduced grain weight. OsFIF3 is evolutionarily conserved in monocotyledons, but variable in dicotyledons. Subcellular localization revealed the predominant localization of OsFIF3 in the nucleus. The DAP-seq (DNA affinity purification sequencing) results showed that OsFIF3 could affect the transcriptional accumulation of β-amylase 1, α-amylase isozyme 2A-like, pectinesterase 11, β-glucosidase 28 like, pectinesterase, sucrose transport protein 1 (SUT1), and FLO2 through the binding of the CACGTG motif on their promoters. Moreover, FLO2 and SUT1 with abundant OsFIF3 binding signals showed significant expression reduction in OsFIF3 overexpression lines, further confirming OsFIF3's role in starch metabolism regulation and energy material allocation. Taken together, these findings show that the overexpression of OsFIF3 inhibits the expression of FLO2 and SUT1, thereby increasing grain chalkiness and affecting grain weight.
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Affiliation(s)
| | | | | | | | | | | | - Langtao Xiao
- Hunan Provincial Key Laboratory of Phytohormones and Growth Development, College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha 410128, China; (X.T.); (W.Z.); (K.W.); (X.G.); (Y.X.); (J.N.)
| | - Shitou Xia
- Hunan Provincial Key Laboratory of Phytohormones and Growth Development, College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha 410128, China; (X.T.); (W.Z.); (K.W.); (X.G.); (Y.X.); (J.N.)
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13
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He W, Li W, Luo X, Tang Y, Wang L, Yu F, Lin Q. Rice FERONIA-LIKE RECEPTOR 3 and 14 affect grain quality by regulating redox homeostasis during endosperm development. JOURNAL OF EXPERIMENTAL BOTANY 2023; 74:3003-3018. [PMID: 36881783 DOI: 10.1093/jxb/erad077] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/06/2023] [Accepted: 03/06/2023] [Indexed: 05/21/2023]
Abstract
Chalky endosperm negatively affects the appearance, milling, and eating qualities of rice (Oryza sativa L.) grains. Here, we report the role of two receptor-like kinases, FERONIA-LIKE RECEPTOR 3 (FLR3) and FERONIA-LIKE RECEPTOR 14 (FLR14), in grain chalkiness and quality. Knockouts of FLR3 and/or FLR14 increased the number of white-core grains caused by aberrant accumulation of storage substances, resulting in poor grain quality. Conversely, the overexpression of FLR3 or FLR14 reduced grain chalkiness and improved grain quality. Transcriptome and metabolome analyses showed that genes and metabolites involved in the oxidative stress response were significantly up-regulated in flr3 and flr14 grains. The content of reactive oxygen species was significantly increased in flr3 and flr14 mutant endosperm but decreased in overexpression lines. This strong oxidative stress response induced the expression of programmed cell death (PCD)-related genes and caspase activity in endosperm, which further accelerated PCD, resulting in grain chalkiness. We also demonstrated that FLR3 and FLR14 reduced grain chalkiness by alleviating heat-induced oxidative stress in rice endosperm. Therefore, we report two positive regulators of grain quality that maintain redox homeostasis in the endosperm, with potential applications in breeding rice for optimal grain quality.
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Affiliation(s)
- Wei He
- National Engineering Laboratory for Rice and By-product Deep Processing, Central South University of Forestry and Technology, Changsha 410004, P. R. China
- Hunan Province, Key Laboratory of Plant Functional Genomics and Developmental Regulation, College of Biology, Hunan University, Changsha 410082, P. R. China
| | - Wanjing Li
- National Engineering Laboratory for Rice and By-product Deep Processing, Central South University of Forestry and Technology, Changsha 410004, P. R. China
| | - Xiao Luo
- Hunan Province, Key Laboratory of Plant Functional Genomics and Developmental Regulation, College of Biology, Hunan University, Changsha 410082, P. R. China
- State Key Laboratory of Hybrid Rice, Hunan Hybrid Rice Research Center, Hunan Academy of Agricultural Sciences, Changsha, 410125, P. R. China
| | - Yuqin Tang
- National Engineering Laboratory for Rice and By-product Deep Processing, Central South University of Forestry and Technology, Changsha 410004, P. R. China
| | - Long Wang
- Hunan Province, Key Laboratory of Plant Functional Genomics and Developmental Regulation, College of Biology, Hunan University, Changsha 410082, P. R. China
| | - Feng Yu
- Hunan Province, Key Laboratory of Plant Functional Genomics and Developmental Regulation, College of Biology, Hunan University, Changsha 410082, P. R. China
- State Key Laboratory of Hybrid Rice, Hunan Hybrid Rice Research Center, Hunan Academy of Agricultural Sciences, Changsha, 410125, P. R. China
| | - Qinlu Lin
- National Engineering Laboratory for Rice and By-product Deep Processing, Central South University of Forestry and Technology, Changsha 410004, P. R. China
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14
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Pan YH, Chen L, Zhu XY, Li JC, Rashid MAR, Chen C, Qing DJ, Zhou WY, Yang XH, Gao LJ, Zhao Y, Deng GF. Utilization of natural alleles for heat adaptability QTLs at the flowering stage in rice. BMC PLANT BIOLOGY 2023; 23:256. [PMID: 37189032 DOI: 10.1186/s12870-023-04260-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/16/2023] [Accepted: 05/02/2023] [Indexed: 05/17/2023]
Abstract
BACKGROUND Heat stress threatens rice yield and quality at flowering stage. In this study, average relative seed setting rate under heat stress (RHSR) and genotypes of 284 varieties were used for a genome-wide association study. RESULTS We identified eight and six QTLs distributed on chromosomes 1, 3, 4, 5, 7 and 12 in the full population and indica, respectively. qHTT4.2 was detected in both the full population and indica as an overlapping QTL. RHSR was positively correlated with the accumulation of heat-tolerant superior alleles (SA), and indica accession contained at least two heat-tolerant SA with average RHSR greater than 43%, meeting the needs of stable production and heat-tolerant QTLs were offer yield basic for chalkiness degree, amylose content, gel consistency and gelatinization temperature. Chalkiness degree, amylose content, and gelatinization temperature under heat stress increased with accumulation of heat-tolerant SA. Gel consistency under heat stress decreased with polymerization of heat-tolerant SA. The study revealed qHTT4.2 as a stable heat-tolerant QTL that can be used for breeding that was detected in the full population and indica. And the grain quality of qHTT4.2-haplotype1 (Hap1) with chalk5, wx, and alk was better than that of qHTT4.2-Hap1 with CHALK5, WX, and ALK. Twelve putative candidate genes were identified for qHTT4.2 that enhance RHSR based on gene expression data and these genes were validated in two groups. Candidate genes LOC_Os04g52830 and LOC_Os04g52870 were induced by high temperature. CONCLUSIONS Our findings identify strong heat-tolerant cultivars and heat-tolerant QTLs with great potential value to improve rice tolerance to heat stress, and suggest a strategy for the breeding of yield-balance-quality heat-tolerant crop varieties.
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Affiliation(s)
- Ying-Hua Pan
- Rice Research Institute, Guangxi Academy of Agricultural Sciences/Guangxi Key Laboratory of Rice Genetics and Breeding, Nanning, 530007, China.
| | - Lei Chen
- Rice Research Institute, Guangxi Academy of Agricultural Sciences/Guangxi Key Laboratory of Rice Genetics and Breeding, Nanning, 530007, China
| | - Xiao-Yang Zhu
- State Key Laboratory of Agrobiotechnology/Beijing Key Laboratory of Crop Genetic Improvement, College of Agronomy and Biotechnology, China Agricultural University, Beijing, 100193, China
| | - Jing-Cheng Li
- Rice Research Institute, Guangxi Academy of Agricultural Sciences/Guangxi Key Laboratory of Rice Genetics and Breeding, Nanning, 530007, China
| | - Muhammad Abdul Rehman Rashid
- Department of Bioinformatics and Biotechnology, Government College University Faisalabad, Faisalabad, 38000, Pakistan
| | - Chao Chen
- State Key Laboratory of Crop Germplasm Innovation and Molecular Breeding/Life Science and Technology Center, China National Seed Group Co., LTD, Wuhan, 430206, China
| | - Dong-Jin Qing
- Rice Research Institute, Guangxi Academy of Agricultural Sciences/Guangxi Key Laboratory of Rice Genetics and Breeding, Nanning, 530007, China
| | - Wei-Yong Zhou
- Rice Research Institute, Guangxi Academy of Agricultural Sciences/Guangxi Key Laboratory of Rice Genetics and Breeding, Nanning, 530007, China
| | - Xing-Hai Yang
- Rice Research Institute, Guangxi Academy of Agricultural Sciences/Guangxi Key Laboratory of Rice Genetics and Breeding, Nanning, 530007, China
| | - Li-Jun Gao
- Rice Research Institute, Guangxi Academy of Agricultural Sciences/Guangxi Key Laboratory of Rice Genetics and Breeding, Nanning, 530007, China
| | - Yan Zhao
- State Key Laboratory of Crop Biology, Shandong Key Laboratory of Crop Biology, College of Agronomy, Shandong Agricultural University, Tai'an, 271018, China.
| | - Guo-Fu Deng
- Rice Research Institute, Guangxi Academy of Agricultural Sciences/Guangxi Key Laboratory of Rice Genetics and Breeding, Nanning, 530007, China.
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15
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Li JY, Yang C, Xu J, Lu HP, Liu JX. The hot science in rice research: How rice plants cope with heat stress. PLANT, CELL & ENVIRONMENT 2023; 46:1087-1103. [PMID: 36478590 DOI: 10.1111/pce.14509] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/02/2022] [Revised: 11/13/2022] [Accepted: 12/03/2022] [Indexed: 06/17/2023]
Abstract
Global climate change has great impacts on plant growth and development, reducing crop productivity worldwide. Rice (Oryza sativa L.), one of the world's most important food crops, is susceptible to high-temperature stress from seedling stage to reproductive stage. In this review, we summarize recent advances in understanding the molecular mechanisms underlying heat stress responses in rice, including heat sensing and signalling, transcriptional regulation, transcript processing, protein translation, and post-translational regulation. We also highlight the irreversible effects of high temperature on reproduction and grain quality in rice. Finally, we discuss challenges and opportunities for future research on heat stress responses in rice.
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Affiliation(s)
- Jin-Yu Li
- State Key Laboratory of Plant Physiology and Biochemistry, College of Life Sciences, Zhejiang University, Hangzhou, China
| | - Chuang Yang
- State Key Laboratory of Plant Physiology and Biochemistry, College of Life Sciences, Zhejiang University, Hangzhou, China
| | - Jiming Xu
- State Key Laboratory of Plant Physiology and Biochemistry, College of Life Sciences, Zhejiang University, Hangzhou, China
| | - Hai-Ping Lu
- State Key Laboratory of Plant Physiology and Biochemistry, College of Life Sciences, Zhejiang University, Hangzhou, China
| | - Jian-Xiang Liu
- State Key Laboratory of Plant Physiology and Biochemistry, College of Life Sciences, Zhejiang University, Hangzhou, China
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16
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Ren H, Bao J, Gao Z, Sun D, Zheng S, Bai J. How rice adapts to high temperatures. FRONTIERS IN PLANT SCIENCE 2023; 14:1137923. [PMID: 37008476 PMCID: PMC10063981 DOI: 10.3389/fpls.2023.1137923] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/05/2023] [Accepted: 03/01/2023] [Indexed: 06/19/2023]
Abstract
High-temperature stress affects crop yields worldwide. Identifying thermotolerant crop varieties and understanding the basis for this thermotolerance would have important implications for agriculture, especially in the face of climate change. Rice (Oryza sativa) varieties have evolved protective strategies to acclimate to high temperature, with different thermotolerance levels. In this review, we examine the morphological and molecular effects of heat on rice in different growth stages and plant organs, including roots, stems, leaves and flowers. We also explore the molecular and morphological differences among thermotolerant rice lines. In addition, some strategies are proposed to screen new rice varieties for thermotolerance, which will contribute to the improvement of rice for agricultural production in the future.
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Affiliation(s)
- Huimin Ren
- Ministry of Education Key Laboratory of Molecular and Cellular Biology, Hebei Research Center of the Basic Discipline of Cell Biology, Hebei Collaboration Innovation Center for Cell Signaling and Environmental Adaptation, Hebei Key Laboratory of Molecular and Cellular Biology, College of Life Sciences, Hebei Normal University, Shijiazhuang, China
| | - Jingpei Bao
- Ministry of Education Key Laboratory of Molecular and Cellular Biology, Hebei Research Center of the Basic Discipline of Cell Biology, Hebei Collaboration Innovation Center for Cell Signaling and Environmental Adaptation, Hebei Key Laboratory of Molecular and Cellular Biology, College of Life Sciences, Hebei Normal University, Shijiazhuang, China
| | - Zhenxian Gao
- Shijiazhuang Academy of Agriculture and Forestry Sciences, Wheat Research Center, Shijiazhuang, China
| | - Daye Sun
- Ministry of Education Key Laboratory of Molecular and Cellular Biology, Hebei Research Center of the Basic Discipline of Cell Biology, Hebei Collaboration Innovation Center for Cell Signaling and Environmental Adaptation, Hebei Key Laboratory of Molecular and Cellular Biology, College of Life Sciences, Hebei Normal University, Shijiazhuang, China
| | - Shuzhi Zheng
- Ministry of Education Key Laboratory of Molecular and Cellular Biology, Hebei Research Center of the Basic Discipline of Cell Biology, Hebei Collaboration Innovation Center for Cell Signaling and Environmental Adaptation, Hebei Key Laboratory of Molecular and Cellular Biology, College of Life Sciences, Hebei Normal University, Shijiazhuang, China
| | - Jiaoteng Bai
- Ministry of Education Key Laboratory of Molecular and Cellular Biology, Hebei Research Center of the Basic Discipline of Cell Biology, Hebei Collaboration Innovation Center for Cell Signaling and Environmental Adaptation, Hebei Key Laboratory of Molecular and Cellular Biology, College of Life Sciences, Hebei Normal University, Shijiazhuang, China
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17
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Fan P, Xu J, Wang Z, Liu G, Zhang Z, Tian J, Wei H, Zhang H. Phenotypic differences in the appearance of soft rice and its endosperm structural basis. FRONTIERS IN PLANT SCIENCE 2023; 14:1074148. [PMID: 36818874 PMCID: PMC9929301 DOI: 10.3389/fpls.2023.1074148] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/19/2022] [Accepted: 01/09/2023] [Indexed: 06/18/2023]
Abstract
In view of the significant differences among genotypes in the appearance of soft rice, it is necessary to conduct research on the differences in the appearance quality of soft rice and their mechanisms. It can provide a theoretical basis for the selection and breeding of superior appearance varieties at a later stage. In order to clarify the differences in appearance phenotypes between different soft rice genotypes and structural basis of endosperm structures behind the differences, four soft rice varieties were selected in this study, including two varieties with good-appearance and two varieties with cloudy appearance. The differences in appearance phenotypes and endosperm structure in mature grains of soft rice with different appearance phenotypes were scientifically analyzed. The development process of their endosperm differences at the filling stage was investigated. The results show that the difference in the rice appearance of soft rice varieties mainly lay in the chalk-free seed transparency and chalkiness. These differences were caused by two completely different types of endosperm structure. Fewer and smaller starch grain cavities were responsible for higher chalk-free transparency of soft rice grains, denser starch granules arrangement caused lower chalkiness of soft rice grains. Ten days after flowering, the starch granules in the back and heart of good-appearance soft rice were already significantly fuller and more closely packed than those of cloudy soft rice. At the same time, the number and area of starch granule holes were significantly smaller than those of cloudy soft rice. This difference gradually increased until maturity. Therefore, based on appearance evaluation, soft rice with good-appearance should have higher transparency and lower chalkiness. The endosperm starch granules should be full and tightly arranged. The number of starch grain cavities and the area should be smaller. These differences develop in the early stages of grouting and gradually increase.
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Affiliation(s)
| | | | | | | | | | | | - Haiyan Wei
- *Correspondence: Haiyan Wei, ; Hongcheng Zhang,
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18
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Chen T, Ma J, Xu C, Jiang N, Li G, Fu W, Feng B, Wang D, Wu Z, Tao L, Fu G. Increased ATPase activity promotes heat-resistance, high-yield, and high-quality traits in rice by improving energy status. FRONTIERS IN PLANT SCIENCE 2022; 13:1035027. [PMID: 36600923 PMCID: PMC9806274 DOI: 10.3389/fpls.2022.1035027] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/02/2022] [Accepted: 09/26/2022] [Indexed: 06/17/2023]
Abstract
Heat stress during the reproductive stage results in major losses in yield and quality, which might be mainly caused by an energy imbalance. However, how energy status affected heat response, yield and quality remains unclear. No relationships were observed among the heat resistance, yield, and quality of the forty-nine early rice cultivars under normal temperature conditions. However, two cultivars, Zhuliangyou30 (ZLY30) and Luliangyou35 (LLY35), differing in heat resistance, yield, and quality were detected. The yield was higher and the chalkiness degree was lower in ZLY30 than in LLY35. Decreases in yields and increases in the chalkiness degree with temperatures were more pronounced in LLY35 than in ZLY30. The accumulation and allocation (ratio of the panicle to the whole plant) of dry matter weight and non-structural carbohydrates were higher in ZLY30 than in LLY35 across all sowing times and temperatures. The accumulation and allocation of dry matter weight and non-structural carbohydrates in panicles were higher in ZLY30 than in LLY35. Similar patterns were observed in the relative expression levels of sucrose unloading related genes SUT1 and SUT2 in grains. The ATP content was higher in the grains of LLY35 than in ZLY30, whereas the ATPase activity, which determined the energy status, was significantly lower in the former than in the latter. Thus, increased ATPase activity, which improved the energy status of rice, was the factor mediating the balance among heat-resistance, high-yield, and high-quality traits in rice.
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Affiliation(s)
- Tingting Chen
- National Key Laboratory of Rice Biology, China National Rice Research Institute, Hangzhou, China
- Agronomy College, Jilin Agricultural University, Changchun, China
| | - Jiaying Ma
- National Key Laboratory of Rice Biology, China National Rice Research Institute, Hangzhou, China
| | - Chunmei Xu
- National Key Laboratory of Rice Biology, China National Rice Research Institute, Hangzhou, China
| | - Ning Jiang
- National Key Laboratory of Rice Biology, China National Rice Research Institute, Hangzhou, China
| | - Guangyan Li
- National Key Laboratory of Rice Biology, China National Rice Research Institute, Hangzhou, China
- Jiangsu Key Laboratory of Crop Genetics and Physiology, Jiangsu Co-Innovation Center for Modern Production Technology of Grain Crops, Agricultural College, Yangzhou University, Yangzhou, China
| | - Weimeng Fu
- National Key Laboratory of Rice Biology, China National Rice Research Institute, Hangzhou, China
| | - Baohua Feng
- National Key Laboratory of Rice Biology, China National Rice Research Institute, Hangzhou, China
| | - Danying Wang
- National Key Laboratory of Rice Biology, China National Rice Research Institute, Hangzhou, China
| | - Zhihai Wu
- Agronomy College, Jilin Agricultural University, Changchun, China
| | - Longxing Tao
- National Key Laboratory of Rice Biology, China National Rice Research Institute, Hangzhou, China
| | - Guanfu Fu
- National Key Laboratory of Rice Biology, China National Rice Research Institute, Hangzhou, China
- Agronomy College, Jilin Agricultural University, Changchun, China
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19
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Dong N, Chen L, Ahmad S, Cai Y, Duan Y, Li X, Liu Y, Jiao G, Xie L, Hu S, Sheng Z, Shao G, Wang L, Tang S, Wei X, Hu P. Genome-Wide Analysis and Functional Characterization of Pyruvate Kinase (PK) Gene Family Modulating Rice Yield and Quality. Int J Mol Sci 2022; 23:ijms232315357. [PMID: 36499684 PMCID: PMC9739881 DOI: 10.3390/ijms232315357] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2022] [Revised: 12/01/2022] [Accepted: 12/03/2022] [Indexed: 12/12/2022] Open
Abstract
Pyruvate kinase (PK) is one of the three rate-limiting enzymes of glycolysis, and it plays a pivotal role in energy metabolism. In this study, we have identified 10 PK genes from the rice genome. Initially, these genes were divided into two categories: cytoplasmic pyruvate kinase (PKc) and plastid pyruvate kinase (PKp). Then, an expression analysis revealed that OsPK1, OsPK3, OsPK4, OsPK6, and OsPK9 were highly expressed in grains. Moreover, PKs can form heteropolymers. In addition, it was found that ABA significantly regulates the expression of PK genes (OsPK1, OsPK4, OsPK9, and OsPK10) in rice. Intriguingly, all the genes were found to be substantially involved in the regulation of rice grain quality and yield. For example, the disruption of OsPK3, OsPK5, OsPK7, OsPK8, and OsPK10 and OsPK4, OsPK5, OsPK6, and OsPK10 decreased the 1000-grain weight and the seed setting rate, respectively. Further, the disruption of OsPK4, OsPK6, OsPK8, and OsPK10 through the CRISPR/Cas9 system showed an increase in the content of total starch and a decrease in protein content compared to the WT. Similarly, manipulations of the OsPK4, OsPK8, and OsPK10 genes increased the amylose content. Meanwhile, the grains of all CRISPR mutants and RNAi lines, except ospk6, showed a significant increase in the chalkiness rate compared to the wild type. Overall, this study characterizes the functions of all the genes of the PK gene family and shows their untapped potential to improve rice yield and quality traits.
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20
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Lal MK, Sharma N, Adavi SB, Sharma E, Altaf MA, Tiwari RK, Kumar R, Kumar A, Dey A, Paul V, Singh B, Singh MP. From source to sink: mechanistic insight of photoassimilates synthesis and partitioning under high temperature and elevated [CO 2]. PLANT MOLECULAR BIOLOGY 2022; 110:305-324. [PMID: 35610527 DOI: 10.1007/s11103-022-01274-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/31/2021] [Accepted: 04/10/2022] [Indexed: 05/27/2023]
Abstract
Photosynthesis is the vital metabolism of the plant affected by abiotic stress such as high temperature and elevated [CO2] levels, which ultimately affect the source-sink relationship. Triose phosphate, the primary precursor of carbohydrate (starch and sucrose) synthesis in the plant, depends on environmental cues. The synthesis of starch in the chloroplasts of leaves (during the day), the transport of photoassimilates (sucrose) from source to sink, the loading and unloading of photoassimilates, and the accumulation of starch in the sink tissue all require a highly regulated network and communication system within the plant. These processes might be affected by high-temperature stress and elevated [CO2] conditions. Generally, elevated [CO2] levels enhance plant growth, photosynthetic rate, starch synthesis, and accumulation, ultimately diluting the nutrient of sink tissues. On the contrary, high-temperature stress is detrimental to plant development affecting photosynthesis, starch synthesis, sucrose synthesis and transport, and photoassimilate accumulation in sink tissues. Moreover, these environmental conditions also negatively impact the quality attributes such as grain/tuber quality, cooking quality, nutritional status in the edible parts and organoleptic traits. In this review, we have attempted to provide an insight into the source-sink relationship and the sugar metabolites synthesized and utilized by the plant under elevated [CO2] and high-temperature stress. This review will help future researchers comprehend the source-sink process for crop growth under changing climate scenarios.
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Affiliation(s)
- Milan Kumar Lal
- ICAR-Indian Agricultural Research Institute, New Delhi, 110012, India
- ICAR-Central Potato Research Institute, Shimla, Himachal Pradesh, 171001, India
| | - Nitin Sharma
- ICAR-Indian Agricultural Research Institute, New Delhi, 110012, India
- Dr Yashwant, Singh Parmar University of Horticulture & Forestry, Nauni, Solan, Himachal Pradesh, 173230, India
| | - Sandeep B Adavi
- ICAR-Indian Agricultural Research Institute, New Delhi, 110012, India
| | - Eshita Sharma
- Dietetics & Nutrition Technology Division, CSIR-Institute of Himalayan Bioresource Technology, Palampur, Himachal Pradesh, 176061, India
- Department of Molecular Biology and Biochemistry, Guru Nanak Dev University, Amritsar, India
| | | | - Rahul Kumar Tiwari
- ICAR-Indian Agricultural Research Institute, New Delhi, 110012, India.
- ICAR-Central Potato Research Institute, Shimla, Himachal Pradesh, 171001, India.
| | - Ravinder Kumar
- ICAR-Central Potato Research Institute, Shimla, Himachal Pradesh, 171001, India.
| | - Awadhesh Kumar
- ICAR-National Rice Research Institute, Cuttack, Odisha, 753006, India
| | - Abhijit Dey
- Department of Life Sciences, Presidency University, 86/1 College Street, Kolkata, West Bengal, 700073, India
| | - Vijay Paul
- ICAR-Indian Agricultural Research Institute, New Delhi, 110012, India
| | - Brajesh Singh
- ICAR-Central Potato Research Institute, Shimla, Himachal Pradesh, 171001, India
| | - Madan Pal Singh
- ICAR-Indian Agricultural Research Institute, New Delhi, 110012, India.
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21
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Nakamura S, Hasegawa M, Kobayashi Y, Komata C, Katsura J, Maruyama Y, Ohtsubo K. Palatability and Bio-Functionality of Chalky Grains Generated by High-Temperature Ripening and Development of Formulae for Estimating the Degree of Damage Using a Rapid Visco Analyzer of Japonica Unpolished Rice. Foods 2022; 11:3422. [PMID: 36360035 PMCID: PMC9658192 DOI: 10.3390/foods11213422] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2022] [Revised: 10/27/2022] [Accepted: 10/27/2022] [Indexed: 11/12/2023] Open
Abstract
Global warming inhibits grain filling in rice and leads to chalky grains, which are damaged in physical and cooking qualities. In the present paper, we evaluated 54 Japonica unpolished rice grains harvested in Japan in 2020, and these samples (original grains) were divided to two groups (whole grains and chalky grains). Using rice grains of 100% whole grains or those blended with 30% of chalky grains, we measured contents of sugars and amino acids, and textural properties of boiled rice grains. It was shown that the α-amylase activity and proteinase activity of raw chalky rice were significantly higher than those of whole rice grains, which led to the significant increase of low-molecular-weight sugars and free amino acids after boiling. Furthermore, hardness and toughness of the boiled rice grains were decreased markedly by blending chalky grains. The ratio of α-amylase activity of chalky grains to that of whole grains was shown to be a useful indicator for damage degree by high-temperature ripening. It became possible to estimate the degree of high-temperature damage of rice grains based on only the pasting properties of unpolished rice.
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Affiliation(s)
- Sumiko Nakamura
- Faculty of Applied Life Sciences, Niigata University of Pharmacy and Applied Life Sciences, 265-1 Higashijima, Akiha-ku, Niigata 956-8603, Japan
| | - Moeka Hasegawa
- Faculty of Applied Life Sciences, Niigata University of Pharmacy and Applied Life Sciences, 265-1 Higashijima, Akiha-ku, Niigata 956-8603, Japan
| | - Yuta Kobayashi
- Faculty of Applied Life Sciences, Niigata University of Pharmacy and Applied Life Sciences, 265-1 Higashijima, Akiha-ku, Niigata 956-8603, Japan
| | - Chikashi Komata
- Faculty of Applied Life Sciences, Niigata University of Pharmacy and Applied Life Sciences, 265-1 Higashijima, Akiha-ku, Niigata 956-8603, Japan
| | - Junji Katsura
- NSP Ltd., Nakanoki 2-31-5-B, Funabashi-shi, Chiba 274-0826, Japan
| | | | - Ken’ichi Ohtsubo
- Faculty of Applied Life Sciences, Niigata University of Pharmacy and Applied Life Sciences, 265-1 Higashijima, Akiha-ku, Niigata 956-8603, Japan
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22
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Li F, Liu Y, Zhang X, Liu L, Yan Y, Ji X, Kong F, Zhao Y, Li J, Peng T, Sun H, Du Y, Zhao Q. Transcriptome and Metabolome Analyses Reveals the Pathway and Metabolites of Grain Quality Under Phytochrome B in Rice (Oryza sativa L.). RICE (NEW YORK, N.Y.) 2022; 15:52. [PMID: 36302917 PMCID: PMC9613846 DOI: 10.1186/s12284-022-00600-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/09/2022] [Accepted: 10/05/2022] [Indexed: 06/16/2023]
Abstract
BACKGROUND Grain size and chalkiness is a critical agronomic trait affecting rice yield and quality. The application of transcriptomics to rice has widened the understanding of complex molecular responsive mechanisms, differential gene expression, and regulatory pathways under varying conditions. Similarly, metabolomics has also contributed drastically for rice trait improvements. As master regulators of plant growth and development, phys influence seed germination, vegetative growth, photoperiodic flowering, shade avoidance responses. OsPHYB can regulate a variety of plant growth and development processes, but little is known about the roles of rice gene OsPHYB in modulating grain development. RESULTS In this study, rice phytochrome B (OsPHYB) was edited using CRISPR/Cas9 technology. We found that OsPHYB knockout increased rice grain size and chalkiness, and increased the contents of amylose, free fatty acids and soluble sugar, while the gel consistency and contents of proteins were reduced in mutant grains. Furthermore, OsPHYB is involved in the regulation of grain size and chalk formation by controlling cell division and complex starch grain morphology. Transcriptomic analysis revealed that loss of OsPHYB function affects multiple metabolic pathways, especially enhancement of glycolysis, fatty acid, oxidative phosphorylation, and antioxidant pathways, as well as differential expression of starch and phytohormone pathways. An analysis of grain metabolites showed an increase in the free fatty acids and lysophosphatidylcholine, whereas the amounts of sugars, alcohols, amino acids and derivatives, organic acids, phenolic acids, alkaloids, nucleotides and derivatives, and flavonoids decreased, which were significantly associated with grain size and chalk formation. CONCLUSIONS Our study reveals that, OsPHYB plays an important regulatory role in the growth and development of rice grains, especially grain size and chalkiness. Furthermore, OsPHYB regulates grain size and chalkiness formation by affecting gene metabolism interaction network. Thus, this study not only revealed that OsPHYB plays a vital role in regulating grain size and chalkiness of rice but reveal new functions and highlighted the importance and value of OsPHYB in rice grain development and provide a new strategy for yield and quality improvement in rice breeding.
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Affiliation(s)
- Fei Li
- Henan Key Laboratory of Rice Biology, Collaborative Innovation Center of Henan Grain Crops, Henan Agricultural University, No. 15, Longzihu University Park, Zhengdong New Area, Zhengzhou, China
| | - Ye Liu
- Henan Key Laboratory of Rice Biology, Collaborative Innovation Center of Henan Grain Crops, Henan Agricultural University, No. 15, Longzihu University Park, Zhengdong New Area, Zhengzhou, China
| | - Xiaohua Zhang
- Henan Key Laboratory of Rice Biology, Collaborative Innovation Center of Henan Grain Crops, Henan Agricultural University, No. 15, Longzihu University Park, Zhengdong New Area, Zhengzhou, China
| | - Lingzhi Liu
- Henan Key Laboratory of Rice Biology, Collaborative Innovation Center of Henan Grain Crops, Henan Agricultural University, No. 15, Longzihu University Park, Zhengdong New Area, Zhengzhou, China
| | - Yun Yan
- Henan Key Laboratory of Rice Biology, Collaborative Innovation Center of Henan Grain Crops, Henan Agricultural University, No. 15, Longzihu University Park, Zhengdong New Area, Zhengzhou, China
| | - Xin Ji
- Henan Key Laboratory of Rice Biology, Collaborative Innovation Center of Henan Grain Crops, Henan Agricultural University, No. 15, Longzihu University Park, Zhengdong New Area, Zhengzhou, China
| | - Fanshu Kong
- Henan Key Laboratory of Rice Biology, Collaborative Innovation Center of Henan Grain Crops, Henan Agricultural University, No. 15, Longzihu University Park, Zhengdong New Area, Zhengzhou, China
| | - Yafan Zhao
- Henan Key Laboratory of Rice Biology, Collaborative Innovation Center of Henan Grain Crops, Henan Agricultural University, No. 15, Longzihu University Park, Zhengdong New Area, Zhengzhou, China
| | - Junzhou Li
- Henan Key Laboratory of Rice Biology, Collaborative Innovation Center of Henan Grain Crops, Henan Agricultural University, No. 15, Longzihu University Park, Zhengdong New Area, Zhengzhou, China
| | - Ting Peng
- Henan Key Laboratory of Rice Biology, Collaborative Innovation Center of Henan Grain Crops, Henan Agricultural University, No. 15, Longzihu University Park, Zhengdong New Area, Zhengzhou, China
| | - Hongzheng Sun
- Henan Key Laboratory of Rice Biology, Collaborative Innovation Center of Henan Grain Crops, Henan Agricultural University, No. 15, Longzihu University Park, Zhengdong New Area, Zhengzhou, China
| | - Yanxiu Du
- Henan Key Laboratory of Rice Biology, Collaborative Innovation Center of Henan Grain Crops, Henan Agricultural University, No. 15, Longzihu University Park, Zhengdong New Area, Zhengzhou, China.
| | - Quanzhi Zhao
- Henan Key Laboratory of Rice Biology, Collaborative Innovation Center of Henan Grain Crops, Henan Agricultural University, No. 15, Longzihu University Park, Zhengdong New Area, Zhengzhou, China.
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23
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Low Light Stress Increases Chalkiness by Disturbing Starch Synthesis and Grain Filling of Rice. Int J Mol Sci 2022; 23:ijms23169153. [PMID: 36012414 PMCID: PMC9408977 DOI: 10.3390/ijms23169153] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2022] [Revised: 08/09/2022] [Accepted: 08/12/2022] [Indexed: 11/17/2022] Open
Abstract
Low light stress increases the chalkiness of rice; however, this effect has not been fully characterized. In this study, we demonstrated that low light resulted in markedly decreased activity of ADP-glucose pyrophosphorylase in the grains and those of sucrose synthase and soluble starch synthase in the early period of grain filling. Furthermore, low light also resulted in decreased activities of granule-bound starch synthase and starch branching enzyme in the late period of grain filling. Therefore, the maximum and mean grain filling rates were reduced but the time to reach the maximum grain filling rates and effective grain filling period were increased by low light. Thus, it significantly decreased the grain weight at the maximum grain filling rate and grain weight and retarded the endosperm growth and development, leading to a loose arrangement of the amyloplasts and an increase in the chalkiness of the rice grains. Compared to the grains at the top panicle part, low light led to a greater decrease in the grain weight at the maximum grain filling rate and time to reach the grain weight at the maximum grain filling rate at the bottom panicle part, which contributed to an increase in chalkiness by increasing the rates of different chalky types at the bottom panicle part. In conclusion, low light disturbed starch synthesis in grains, thereby impeding the grain filling progress and increasing chalkiness, particularly for grains at the bottom panicle part.
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24
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Yang W, Hao Q, Liang J, Tan Q, Luan X, Lin S, Zhu H, Bu S, Liu Z, Liu G, Wang S, Zhang G. Fine Mapping of Two Major Quantitative Trait Loci for Rice Chalkiness With High Temperature-Enhanced Additive Effects. FRONTIERS IN PLANT SCIENCE 2022; 13:957863. [PMID: 35845647 PMCID: PMC9280674 DOI: 10.3389/fpls.2022.957863] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Accepted: 06/13/2022] [Indexed: 05/31/2023]
Abstract
Chalkiness is a crucial determinant of rice quality. During seed filling period, high temperature usually increases grain chalkiness, resulting in poor grain quality. Rice chalkiness was controlled by quantitative trait loci (QTLs) and influenced by environmental conditions. In this study, we identified two single-segment substitution lines (SSSLs) 22-05 and 15-06 with significantly lower percentage of grain chalkiness (PGC) than recipient Huajingxian 74 (HJX74) over 6 cropping seasons. Two major QTLs for chalkiness, qPGC5 and qPGC6, were located by substitution mapping of SSSLs 22-05 and 15-06, respectively. qPGC5 was located in the 876.5 kb interval of chromosome 5 and qPGC6 was located in the 269.1 kb interval of chromosome 6. Interestingly, the PGC of HJX74 was significantly different between the two cropping seasons per year, with 25.8% in the first cropping season (FCS) and 16.6% in the second cropping season (SCS), while the PGC of SSSLs 22-05 and 15-06 did not significantly differ between FCS and SCS. The additive effects of qPGC5 and qPGC6 on chalkiness in the SSSLs were significantly greater in FCS than in SCS. These results showed that qPGC5 and qPGC6 had major effects on chalkiness and the SSSL alleles were more effective in reducing chalkiness under high temperature condition in FCS. The fine-mapping of the two QTLs will facilitate the cloning of genes for chalkiness and provide new genetic resources to develop new cultivars with low chalkiness even under high temperature condition.
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Affiliation(s)
- Weifeng Yang
- Guangdong Provincial Key Laboratory of Plant Molecular Breeding, State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, South China Agricultural University, Guangzhou, China
- Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou, China
| | - Qingwen Hao
- Guangdong Provincial Key Laboratory of Plant Molecular Breeding, State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, South China Agricultural University, Guangzhou, China
- Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou, China
| | - Jiayan Liang
- Guangdong Provincial Key Laboratory of Plant Molecular Breeding, State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, South China Agricultural University, Guangzhou, China
| | - Quanya Tan
- Guangdong Provincial Key Laboratory of Plant Molecular Breeding, State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, South China Agricultural University, Guangzhou, China
- Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou, China
| | - Xin Luan
- Guangdong Provincial Key Laboratory of Plant Molecular Breeding, State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, South China Agricultural University, Guangzhou, China
| | - Shaojun Lin
- Guangdong Provincial Key Laboratory of Plant Molecular Breeding, State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, South China Agricultural University, Guangzhou, China
- Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou, China
| | - Haitao Zhu
- Guangdong Provincial Key Laboratory of Plant Molecular Breeding, State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, South China Agricultural University, Guangzhou, China
- Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou, China
| | - Suhong Bu
- Guangdong Provincial Key Laboratory of Plant Molecular Breeding, State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, South China Agricultural University, Guangzhou, China
- Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou, China
| | - Zupei Liu
- Guangdong Provincial Key Laboratory of Plant Molecular Breeding, State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, South China Agricultural University, Guangzhou, China
- Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou, China
| | - Guifu Liu
- Guangdong Provincial Key Laboratory of Plant Molecular Breeding, State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, South China Agricultural University, Guangzhou, China
- Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou, China
| | - Shaokui Wang
- Guangdong Provincial Key Laboratory of Plant Molecular Breeding, State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, South China Agricultural University, Guangzhou, China
- Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou, China
| | - Guiquan Zhang
- Guangdong Provincial Key Laboratory of Plant Molecular Breeding, State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, South China Agricultural University, Guangzhou, China
- Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou, China
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25
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Zhao D, Zhang C, Li Q, Liu Q. Genetic control of grain appearance quality in rice. Biotechnol Adv 2022; 60:108014. [PMID: 35777622 DOI: 10.1016/j.biotechadv.2022.108014] [Citation(s) in RCA: 32] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2022] [Revised: 05/27/2022] [Accepted: 06/23/2022] [Indexed: 02/08/2023]
Abstract
Grain appearance, one of the key determinants of rice quality, reflects the ability to attract consumers, and is characterized by four major properties: grain shape, chalkiness, transparency, and color. Mining of valuable genes, genetic mechanisms, and breeding cultivars with improved grain appearance are essential research areas in rice biology. However, grain appearance is a complex and comprehensive trait, making it challenging to understand the molecular details, and therefore, achieve precise improvement. This review highlights the current findings of grain appearance control, including a detailed description of the key genes involved in the formation of grain appearance, and the major environmental factors affecting chalkiness. We also discuss the integration of current knowledge on valuable genes to enable accurate breeding strategies for generation of rice grains with superior appearance quality.
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Affiliation(s)
- Dongsheng Zhao
- Key Laboratory of Crop Genomics and Molecular Breeding of Jiangsu Province, State Key Laboratory of Hybrid Rice, Key Laboratory of Plant Functional Genomics of the Ministry of Education, Yangzhou University, Yangzhou 225009, China; Jiangsu Co-Innovation Center for Modern Production Technology of Grain Crops, Jiangsu Key Laboratory of Crop Genetics and Physiology, Yangzhou University, Yangzhou 225009, China
| | - Changquan Zhang
- Key Laboratory of Crop Genomics and Molecular Breeding of Jiangsu Province, State Key Laboratory of Hybrid Rice, Key Laboratory of Plant Functional Genomics of the Ministry of Education, Yangzhou University, Yangzhou 225009, China
| | - Qianfeng Li
- Key Laboratory of Crop Genomics and Molecular Breeding of Jiangsu Province, State Key Laboratory of Hybrid Rice, Key Laboratory of Plant Functional Genomics of the Ministry of Education, Yangzhou University, Yangzhou 225009, China
| | - Qiaoquan Liu
- Key Laboratory of Crop Genomics and Molecular Breeding of Jiangsu Province, State Key Laboratory of Hybrid Rice, Key Laboratory of Plant Functional Genomics of the Ministry of Education, Yangzhou University, Yangzhou 225009, China; Jiangsu Co-Innovation Center for Modern Production Technology of Grain Crops, Jiangsu Key Laboratory of Crop Genetics and Physiology, Yangzhou University, Yangzhou 225009, China.
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26
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Wu B, Yun P, Zhou H, Xia D, Gu Y, Li P, Yao J, Zhou Z, Chen J, Liu R, Cheng S, Zhang H, Zheng Y, Lou G, Chen P, Wan S, Zhou M, Li Y, Gao G, Zhang Q, Li X, Lian X, He Y. Natural variation in WHITE-CORE RATE 1 regulates redox homeostasis in rice endosperm to affect grain quality. THE PLANT CELL 2022; 34:1912-1932. [PMID: 35171272 PMCID: PMC9048946 DOI: 10.1093/plcell/koac057] [Citation(s) in RCA: 34] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/03/2021] [Accepted: 02/09/2022] [Indexed: 05/11/2023]
Abstract
Grain chalkiness reduces the quality of rice (Oryza sativa) and is a highly undesirable trait for breeding and marketing. However, the underlying molecular cause of chalkiness remains largely unknown. Here, we cloned the F-box gene WHITE-CORE RATE 1 (WCR1), which negatively regulates grain chalkiness and improves grain quality in rice. A functional A/G variation in the promoter region of WCR1 generates the alleles WCR1A and WCR1G, which originated from tropical japonica and wild rice Oryza rufipogon, respectively. OsDOF17 is a transcriptional activator that binds to the AAAAG cis-element in the WCR1A promoter. WCR1 positively affects the transcription of the metallothionein gene MT2b and interacts with MT2b to inhibit its 26S proteasome-mediated degradation, leading to decreased reactive oxygen species production and delayed programmed cell death in rice endosperm. This, in turn, leads to reduced chalkiness. Our findings uncover a molecular mechanism underlying rice chalkiness and identify the promising natural variant WCR1A, with application potential for rice breeding.
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Affiliation(s)
- Bian Wu
- National Key Laboratory of Crop Genetic Improvement and Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan, Hubei 430070, China
| | - Peng Yun
- National Key Laboratory of Crop Genetic Improvement and Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan, Hubei 430070, China
| | - Hao Zhou
- National Key Laboratory of Crop Genetic Improvement and Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan, Hubei 430070, China
| | - Duo Xia
- National Key Laboratory of Crop Genetic Improvement and Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan, Hubei 430070, China
| | - Yuan Gu
- National Key Laboratory of Crop Genetic Improvement and Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan, Hubei 430070, China
| | - Pingbo Li
- National Key Laboratory of Crop Genetic Improvement and Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan, Hubei 430070, China
| | - Jialing Yao
- National Key Laboratory of Crop Genetic Improvement and Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan, Hubei 430070, China
| | - Zhuqing Zhou
- National Key Laboratory of Crop Genetic Improvement and Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan, Hubei 430070, China
| | - Jianxian Chen
- National Key Laboratory of Crop Genetic Improvement and Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan, Hubei 430070, China
| | - Rongjia Liu
- National Key Laboratory of Crop Genetic Improvement and Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan, Hubei 430070, China
| | - Shiyuan Cheng
- National Key Laboratory of Crop Genetic Improvement and Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan, Hubei 430070, China
| | - Hao Zhang
- National Key Laboratory of Crop Genetic Improvement and Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan, Hubei 430070, China
| | - Yuanyuan Zheng
- National Key Laboratory of Crop Genetic Improvement and Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan, Hubei 430070, China
| | - Guangming Lou
- National Key Laboratory of Crop Genetic Improvement and Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan, Hubei 430070, China
| | - Pingli Chen
- National Key Laboratory of Crop Genetic Improvement and Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan, Hubei 430070, China
| | - Shanshan Wan
- National Key Laboratory of Crop Genetic Improvement and Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan, Hubei 430070, China
| | - Mingsong Zhou
- National Key Laboratory of Crop Genetic Improvement and Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan, Hubei 430070, China
| | - Yanhua Li
- National Key Laboratory of Crop Genetic Improvement and Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan, Hubei 430070, China
| | - Guanjun Gao
- National Key Laboratory of Crop Genetic Improvement and Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan, Hubei 430070, China
| | - Qinglu Zhang
- National Key Laboratory of Crop Genetic Improvement and Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan, Hubei 430070, China
| | - Xianghua Li
- National Key Laboratory of Crop Genetic Improvement and Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan, Hubei 430070, China
| | - Xingming Lian
- National Key Laboratory of Crop Genetic Improvement and Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan, Hubei 430070, China
| | - Yuqing He
- National Key Laboratory of Crop Genetic Improvement and Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan, Hubei 430070, China
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27
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Hu X, Zhang W, Lu L, Shao Y, Chen M, Zhu Z, Mou R. Comparison of quality of appearance, cooking quality, and protein content of green‐labeled rice and conventional rice. Cereal Chem 2022. [DOI: 10.1002/cche.10543] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Xianqiao Hu
- Rice Product Quality Supervision and Inspection Center, Ministry of Agriculture and Rural Affairs China National Rice Research Institute Hangzhou China
| | - Weixing Zhang
- Rice Product Quality Supervision and Inspection Center, Ministry of Agriculture and Rural Affairs China National Rice Research Institute Hangzhou China
| | - Lin Lu
- Rice Product Quality Supervision and Inspection Center, Ministry of Agriculture and Rural Affairs China National Rice Research Institute Hangzhou China
| | - Yafang Shao
- Rice Product Quality Supervision and Inspection Center, Ministry of Agriculture and Rural Affairs China National Rice Research Institute Hangzhou China
| | - Mingxue Chen
- Rice Product Quality Supervision and Inspection Center, Ministry of Agriculture and Rural Affairs China National Rice Research Institute Hangzhou China
| | - Zhiwei Zhu
- Rice Product Quality Supervision and Inspection Center, Ministry of Agriculture and Rural Affairs China National Rice Research Institute Hangzhou China
| | - Renxiang Mou
- Rice Product Quality Supervision and Inspection Center, Ministry of Agriculture and Rural Affairs China National Rice Research Institute Hangzhou China
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Nakamura S, Satoh A, Aizawa M, Ohtsubo K. Characteristics of Physicochemical Properties of Chalky Grains of Japonica Rice Generated by High Temperature during Ripening. Foods 2021; 11:foods11010097. [PMID: 35010222 PMCID: PMC8750872 DOI: 10.3390/foods11010097] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2021] [Revised: 12/16/2021] [Accepted: 12/21/2021] [Indexed: 11/16/2022] Open
Abstract
Global warming has caused devastating damage to starch biosynthesis, which has led to the increase in chalky grains of rice. This study was conducted to characterize the qualities of chalky rice grains and to develop the estimation formulae for their quality damage degree. We evaluated the chalkiness of 40 Japonica rice samples harvested in 2019, in Japan. Seven samples with a high ratio of chalky rice grains were selected and divided into two groups (whole grain and chalky grain). As a results of the various physicochemical measurements, it was shown that the surface layer hardness (H1) of cooked rice grains from chalky grains was significantly lower, and their overall hardness was significantly lower than those from the whole grains. In addition, α- and β-amylase activities, and sugar contents of the chalky rice grains were significantly higher than those of the whole rice grains. The developed estimation formula for the degree of retrogradation of H1 based on the α-amylase activities and pasting properties, showed correlation coefficients of 0.84 and 0.81 in the calibration and validation tests, respectively. This result presents the formula that could be used to estimate and to characterize the cooking properties of the rice samples ripened under high temperature.
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Sampaio PS, Almeida AS, Brites CM. Use of Artificial Neural Network Model for Rice Quality Prediction Based on Grain Physical Parameters. Foods 2021; 10:3016. [PMID: 34945567 PMCID: PMC8701132 DOI: 10.3390/foods10123016] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2021] [Revised: 11/15/2021] [Accepted: 12/01/2021] [Indexed: 11/16/2022] Open
Abstract
The main goal of this study was to test the ability of an artificial neural network (ANN) for rice quality prediction based on grain physical parameters and to conduct a comparison with multiple linear regression (MLR) using 66 samples in duplicate. The parameters used for rice quality prediction are related to biochemical composition (starch, amylose, ash, fat, and protein concentration) and pasting parameters (peak viscosity, trough, breakdown, final viscosity, and setback). These parameters were estimated based on grain appearance (length, width, length/width ratio, total whiteness, vitreous whiteness, and chalkiness), and milling yield (husked, milled, head) data. The MLR models were characterized by very low coefficient determination (R2 = 0.27-0.96) and a root-mean-square error (RMSE) (0.08-0.56). Meanwhile, the ANN models presented a range for R2 = 0.97-0.99, being characterized for R2 = 0.98 (training), R2 = 0.88 (validation), and R2 = 0.90 (testing). According to these results, the ANN algorithms could be used to obtain robust models to predict both biochemical and pasting profiles parameters in a fast and accurate form, which makes them suitable for application to simultaneous qualitative and quantitative analysis of rice quality. Moreover, the ANN prediction method represents a promising approach to estimate several targeted biochemical and viscosity parameters with a fast and clean approach that is interesting to industry and consumers, leading to better assessment of rice classification for authenticity purposes.
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Affiliation(s)
- Pedro Sousa Sampaio
- Instituto Nacional de Investigação Agrária e Veterinária (INIAV), Av. da República, Quinta do Marquês, 2780-157 Oeiras, Portugal; (A.S.A.); (C.M.B.)
- GREEN-IT Bioresources for Sustainability, ITQB NOVA, Av. da República, 2780-157 Oeiras, Portugal
- DREAMS-Centre for Interdisciplinary Development and Research on Environment, Applied Management, and Space, Faculty of Engineering, Lusófona University (ULHT), Campo Grande, 376, 1749-024 Lisbon, Portugal
| | - Ana Sofia Almeida
- Instituto Nacional de Investigação Agrária e Veterinária (INIAV), Av. da República, Quinta do Marquês, 2780-157 Oeiras, Portugal; (A.S.A.); (C.M.B.)
- GREEN-IT Bioresources for Sustainability, ITQB NOVA, Av. da República, 2780-157 Oeiras, Portugal
| | - Carla Moita Brites
- Instituto Nacional de Investigação Agrária e Veterinária (INIAV), Av. da República, Quinta do Marquês, 2780-157 Oeiras, Portugal; (A.S.A.); (C.M.B.)
- GREEN-IT Bioresources for Sustainability, ITQB NOVA, Av. da República, 2780-157 Oeiras, Portugal
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30
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He W, Wang L, Lin Q, Yu F. Rice seed storage proteins: Biosynthetic pathways and the effects of environmental factors. JOURNAL OF INTEGRATIVE PLANT BIOLOGY 2021; 63:1999-2019. [PMID: 34581486 DOI: 10.1111/jipb.13176] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/29/2021] [Accepted: 09/27/2021] [Indexed: 05/02/2023]
Abstract
Rice (Oryza sativa L.) is the most important food crop for at least half of the world's population. Due to improved living standards, the cultivation of high-quality rice for different purposes and markets has become a major goal. Rice quality is determined by the presence of many nutritional components, including seed storage proteins (SSPs), which are the second most abundant nutrient components of rice grains after starch. Rice SSP biosynthesis requires the participation of multiple organelles and is influenced by the external environment, making it challenging to understand the molecular details of SSP biosynthesis and improve rice protein quality. In this review, we highlight the current knowledge of rice SSP biosynthesis, including a detailed description of the key molecules involved in rice SSP biosynthetic processes and the major environmental factors affecting SSP biosynthesis. The effects of these factors on SSP accumulation and their contribution to rice quality are also discussed based on recent findings. This recent knowledge suggests not only new research directions for exploring rice SSP biosynthesis but also innovative strategies for breeding high-quality rice varieties.
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Affiliation(s)
- Wei He
- National Engineering Laboratory for Rice and By-product Deep Processing, Central South University of Forestry and Technology, Changsha, 410004, China
- College of Biology, State Key Laboratory of Chemo/Biosensing and Chemometrics, and Hunan Province Key Laboratory of Plant Functional Genomics and Developmental Regulation, Hunan University, Changsha, 410082, China
| | - Long Wang
- College of Biology, State Key Laboratory of Chemo/Biosensing and Chemometrics, and Hunan Province Key Laboratory of Plant Functional Genomics and Developmental Regulation, Hunan University, Changsha, 410082, China
| | - Qinlu Lin
- National Engineering Laboratory for Rice and By-product Deep Processing, Central South University of Forestry and Technology, Changsha, 410004, China
| | - Feng Yu
- College of Biology, State Key Laboratory of Chemo/Biosensing and Chemometrics, and Hunan Province Key Laboratory of Plant Functional Genomics and Developmental Regulation, Hunan University, Changsha, 410082, China
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31
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Xi M, Wu W, Xu Y, Zhou Y, Chen G, Ji Y, Sun X. Grain chalkiness traits is affected by the synthesis and dynamic accumulation of the storage protein in rice. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2021; 101:6125-6133. [PMID: 33905122 DOI: 10.1002/jsfa.11269] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/10/2020] [Revised: 03/28/2021] [Accepted: 04/27/2021] [Indexed: 05/02/2023]
Abstract
BACKGROUOND Grain chalkiness lowers the market value of rice. Alleviating grain chalkiness is the most challenging issue in many rice-producing areas of the world. Nitrogen (N) metabolism has received increasing attention as a result of its relationship with grain chalkiness, although little information is available on the mechanism of N-induced grain chalk. RESULTS A highly chalky rice variety OM052 was used to explore the protein synthesis and its accumulation in the grain exposed to N topdressing (N+) at the panicle initiation stage and a control (N-). The results showed that chalky kernels were stimulated by the N+ treatment and more prone to occur on the top and primary rachis. The grain protein content was increased because of the increased average and maximum rates of protein accumulation during grain filling, which was related to the enhanced activities of glutamine synthetase, glutamate synthase, glutamic oxalo-acetic transaminase and glutamate pyruvate transaminase under the N+ treatment. The activities of these enzymes at 15 days after flowering (DAF) were notably positively correlated with grain chalky traits and protein content. CONCLUSION N topdressing regulates the synthesis and accumulation of the protein by affecting the key enzymes, especially at 15 DAF, which is attributed to grain chalkiness in rice. © 2021 Society of Chemical Industry.
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Affiliation(s)
- Min Xi
- Rice Research Institute, Anhui Academy of Agricultural Sciences, Hefei, China
| | - Wenge Wu
- Rice Research Institute, Anhui Academy of Agricultural Sciences, Hefei, China
| | - Youzun Xu
- Rice Research Institute, Anhui Academy of Agricultural Sciences, Hefei, China
| | - Yongjin Zhou
- Rice Research Institute, Anhui Academy of Agricultural Sciences, Hefei, China
| | - Gang Chen
- Rice Research Institute, Anhui Academy of Agricultural Sciences, Hefei, China
| | - Yalan Ji
- Rice Research Institute, Anhui Academy of Agricultural Sciences, Hefei, China
| | - Xueyuan Sun
- Rice Research Institute, Anhui Academy of Agricultural Sciences, Hefei, China
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Li B, Du X, Fei Y, Wang F, Xu Y, LI X, Li W, Chen Z, Fan F, Wang J, Tao Y, Jiang Y, Zhu QH, Yang J. Efficient Breeding of Early-Maturing Rice Cultivar by Editing PHYC via CRISPR/Cas9. RICE (NEW YORK, N.Y.) 2021; 14:86. [PMID: 34643821 PMCID: PMC8514591 DOI: 10.1186/s12284-021-00527-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/03/2021] [Accepted: 10/03/2021] [Indexed: 06/13/2023]
Affiliation(s)
- Bin Li
- Institute of Life Science, Jiangsu University, Zhenjiang, 212013 Jiangsu China
- Institute of Food Crops, Jiangsu Academy of Agricultural Sciences/Nanjing Branch of Chinese National Center for Rice Improvement, Nanjing, 210014 Jiangsu China
| | - Xi Du
- Institute of Food Crops, Jiangsu Academy of Agricultural Sciences/Nanjing Branch of Chinese National Center for Rice Improvement, Nanjing, 210014 Jiangsu China
- Jiangsu Co-Innovation Center for Modern Production Technology of Grain Crops, Yangzhou University, Yangzhou, 225009 Jiangsu China
| | - Yunyan Fei
- Institute of Food Crops, Jiangsu Academy of Agricultural Sciences/Nanjing Branch of Chinese National Center for Rice Improvement, Nanjing, 210014 Jiangsu China
- Jiangsu Co-Innovation Center for Modern Production Technology of Grain Crops, Yangzhou University, Yangzhou, 225009 Jiangsu China
| | - Fangquan Wang
- Institute of Food Crops, Jiangsu Academy of Agricultural Sciences/Nanjing Branch of Chinese National Center for Rice Improvement, Nanjing, 210014 Jiangsu China
- Jiangsu Co-Innovation Center for Modern Production Technology of Grain Crops, Yangzhou University, Yangzhou, 225009 Jiangsu China
| | - Yang Xu
- Institute of Food Crops, Jiangsu Academy of Agricultural Sciences/Nanjing Branch of Chinese National Center for Rice Improvement, Nanjing, 210014 Jiangsu China
- Jiangsu Co-Innovation Center for Modern Production Technology of Grain Crops, Yangzhou University, Yangzhou, 225009 Jiangsu China
| | - Xia LI
- Institute of Food Crops, Jiangsu Academy of Agricultural Sciences/Nanjing Branch of Chinese National Center for Rice Improvement, Nanjing, 210014 Jiangsu China
- Jiangsu Co-Innovation Center for Modern Production Technology of Grain Crops, Yangzhou University, Yangzhou, 225009 Jiangsu China
| | - Wenqi Li
- Institute of Food Crops, Jiangsu Academy of Agricultural Sciences/Nanjing Branch of Chinese National Center for Rice Improvement, Nanjing, 210014 Jiangsu China
- Jiangsu Co-Innovation Center for Modern Production Technology of Grain Crops, Yangzhou University, Yangzhou, 225009 Jiangsu China
| | - Zhihui Chen
- Institute of Food Crops, Jiangsu Academy of Agricultural Sciences/Nanjing Branch of Chinese National Center for Rice Improvement, Nanjing, 210014 Jiangsu China
- Jiangsu Co-Innovation Center for Modern Production Technology of Grain Crops, Yangzhou University, Yangzhou, 225009 Jiangsu China
| | - Fangjun Fan
- Institute of Food Crops, Jiangsu Academy of Agricultural Sciences/Nanjing Branch of Chinese National Center for Rice Improvement, Nanjing, 210014 Jiangsu China
- Jiangsu Co-Innovation Center for Modern Production Technology of Grain Crops, Yangzhou University, Yangzhou, 225009 Jiangsu China
| | - Jun Wang
- Institute of Food Crops, Jiangsu Academy of Agricultural Sciences/Nanjing Branch of Chinese National Center for Rice Improvement, Nanjing, 210014 Jiangsu China
- Jiangsu Co-Innovation Center for Modern Production Technology of Grain Crops, Yangzhou University, Yangzhou, 225009 Jiangsu China
| | - Yajun Tao
- Institute of Food Crops, Jiangsu Academy of Agricultural Sciences/Nanjing Branch of Chinese National Center for Rice Improvement, Nanjing, 210014 Jiangsu China
- Jiangsu Co-Innovation Center for Modern Production Technology of Grain Crops, Yangzhou University, Yangzhou, 225009 Jiangsu China
| | - Yanjie Jiang
- Institute of Food Crops, Jiangsu Academy of Agricultural Sciences/Nanjing Branch of Chinese National Center for Rice Improvement, Nanjing, 210014 Jiangsu China
- Jiangsu Co-Innovation Center for Modern Production Technology of Grain Crops, Yangzhou University, Yangzhou, 225009 Jiangsu China
| | - Qian-Hao Zhu
- CSIRO Agriculture and Food, GPO Box 1700, Canberra, ACT Australia
| | - Jie Yang
- Institute of Life Science, Jiangsu University, Zhenjiang, 212013 Jiangsu China
- Institute of Food Crops, Jiangsu Academy of Agricultural Sciences/Nanjing Branch of Chinese National Center for Rice Improvement, Nanjing, 210014 Jiangsu China
- Jiangsu Co-Innovation Center for Modern Production Technology of Grain Crops, Yangzhou University, Yangzhou, 225009 Jiangsu China
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Frying Time and Temperature Conditions’ Influences on Physicochemical, Texture, and Sensorial Quality Parameters of Barley-Soybean Chips. J FOOD QUALITY 2021. [DOI: 10.1155/2021/5748495] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Demand for innovative healthy snacks that achieve consumer satisfaction represents increased interest for competitive food producers. The aim of this work was the assessment of physicochemical and sensory quality of barley-soybean chips involving legume protein flours by studying the effects of different substitution levels (10, 20, and 30%) of defatted soybean (DSB) flour, frying temperatures (150, 170, and 190°C), and frying times (60, 90, and 120 sec). The chips’ moisture content was significantly decreased with increased frying temperature and time. The moisture content (1.40%) was achieved at 10% DSB fried at 190°C for 120 sec. The least absorbed oil (29.25%) was achieved at the least substitution percentage (10% DSB), the least frying temperature (150°C), and the least frying time (60 sec). These results were reflected on sensorial parameters that revealed that the most preferred chips were barley-soybean chips with 10% DSB fried at 150 and 170°C. The amylose content was increased by 33.80% in chips substituted with 30% DSB, while it was decreased to 27.16% in chips substituted with 10% DSB, and vice versa for the amylopectin content. TPA revealed that DSB substitution levels were directly proportional with hardness and inversely proportional with elasticity and adhesiveness. From obtained results, substitution levels with 10% DSB fried at 150°C are recommended. These findings encourage the production of innovative enhanced snacks involving legume protein while maintaining consumer satisfaction.
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Yang W, Xiong L, Liang J, Hao Q, Luan X, Tan Q, Lin S, Zhu H, Liu G, Liu Z, Bu S, Wang S, Zhang G. Substitution Mapping of Two Closely Linked QTLs on Chromosome 8 Controlling Grain Chalkiness in Rice. RICE (NEW YORK, N.Y.) 2021; 14:85. [PMID: 34601659 PMCID: PMC8487414 DOI: 10.1186/s12284-021-00526-4] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/09/2021] [Accepted: 09/18/2021] [Indexed: 05/27/2023]
Abstract
Rice varieties are required to have high yield and good grain quality. Grain chalkiness and grain shape are two important traits of rice grain quality. Low chalkiness slender grains are preferred by most rice consumers. Here, we dissected two closely linked quantitative trait loci (QTLs) controlling grain chalkiness and grain shape on rice chromosome 8 by substitution mapping. Two closely linked QTLs controlling grain chalkiness and grain shape were identified using single-segment substitution lines (SSSLs). The two QTLs were then dissected on rice chromosome 8 by secondary substitution mapping. qPGC8.1 was located in an interval of 1382.6 kb and qPGC8.2 was mapped in a 2057.1 kb region. The maximum distance of the two QTLs was 4.37 Mb and the space distance of two QTL intervals was 0.72 Mb. qPGC8.1 controlled grain chalkiness and grain width. qPGC8.2 was responsible for grain chalkiness, grain length and width. The additive effects of qPGC8.1 and qPGC8.2 on grain chalkiness were not affected by higher temperature. Two closely linked QTLs qPGC8.1 and qPGC8.2 were dissected on rice chromosome 8. They controlled the phenotypes of grain chalkiness and grain shape. The two QTLs were insensitive to higher temperature.
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Affiliation(s)
- Weifeng Yang
- Guangdong Provincial Key Laboratory of Plant Molecular Breeding, State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, South China Agricultural University, Guangzhou, 510642, China
| | - Liang Xiong
- Guangdong Provincial Key Laboratory of Plant Molecular Breeding, State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, South China Agricultural University, Guangzhou, 510642, China
| | - Jiayan Liang
- Guangdong Provincial Key Laboratory of Plant Molecular Breeding, State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, South China Agricultural University, Guangzhou, 510642, China
| | - Qingwen Hao
- Guangdong Provincial Key Laboratory of Plant Molecular Breeding, State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, South China Agricultural University, Guangzhou, 510642, China
| | - Xin Luan
- Guangdong Provincial Key Laboratory of Plant Molecular Breeding, State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, South China Agricultural University, Guangzhou, 510642, China
| | - Quanya Tan
- Guangdong Provincial Key Laboratory of Plant Molecular Breeding, State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, South China Agricultural University, Guangzhou, 510642, China
| | - Shiwan Lin
- Guangdong Provincial Key Laboratory of Plant Molecular Breeding, State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, South China Agricultural University, Guangzhou, 510642, China
| | - Haitao Zhu
- Guangdong Provincial Key Laboratory of Plant Molecular Breeding, State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, South China Agricultural University, Guangzhou, 510642, China
| | - Guifu Liu
- Guangdong Provincial Key Laboratory of Plant Molecular Breeding, State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, South China Agricultural University, Guangzhou, 510642, China
| | - Zupei Liu
- Guangdong Provincial Key Laboratory of Plant Molecular Breeding, State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, South China Agricultural University, Guangzhou, 510642, China
| | - Suhong Bu
- Guangdong Provincial Key Laboratory of Plant Molecular Breeding, State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, South China Agricultural University, Guangzhou, 510642, China
| | - Shaokui Wang
- Guangdong Provincial Key Laboratory of Plant Molecular Breeding, State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, South China Agricultural University, Guangzhou, 510642, China.
| | - Guiquan Zhang
- Guangdong Provincial Key Laboratory of Plant Molecular Breeding, State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, South China Agricultural University, Guangzhou, 510642, China.
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Gann PJ, Esguerra M, Counce PA, Srivastava V. Genotype-dependent and heat-induced grain chalkiness in rice correlates with the expression patterns of starch biosynthesis genes. PLANT-ENVIRONMENT INTERACTIONS (HOBOKEN, N.J.) 2021; 2:165-176. [PMID: 37283703 PMCID: PMC10168090 DOI: 10.1002/pei3.10054] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/16/2020] [Revised: 05/12/2021] [Accepted: 05/15/2021] [Indexed: 06/08/2023]
Abstract
Starch biosynthesis is a complex process underlying grain chalkiness in rice in a genotype-dependent manner. Coordinated expression of starch biosynthesis genes is important for producing translucent rice grains, while disruption in this process leads to opaque or chalky grains. To better understand the dynamics of starch biosynthesis genes in grain chalkiness, six rice genotypes showing variable chalk levels were subjected to gene expression analysis during reproductive stages. In the chalky genotypes, peak expression of the large subunit genes of ADP-glucose pyrophosphorylase (AGPase), encoding the first key step in starch biosynthesis, occurred in the stages before grain filling commenced, creating a gap with the upregulation of starch synthase genes, granule bound starch synthase I (GBSSI) and starch synthase IIA (SSIIA). Whereas, in low-chalk genotypes, AGPase large subunit genes expressed at later stages, generally following the expression patterns of GBSSI and SSIIA. However, heat treatment altered the expression in a genotype-dependent manner that was accompanied by transformed grain morphology and increased chalkiness. The suppression of AGPase subunit genes during early grain filling stages was observed in the chalky genotypes or upon heat treatment, which could result in a limited pool of ADP-Glucose for synthesizing amylose and amylopectin, the major components of the starch. This suboptimal starch biosynthesis process could subsequently lead to inefficient grain filling and air pockets that contribute to chalkiness. In summary, this study suggests a mechanism of grain chalkiness based on the expression patterns of the starch biosynthesis genes in rice.
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Affiliation(s)
- Peter James Gann
- Cell and Molecular Biology ProgramUniversity of ArkansasFayettevilleARUSA
- Department of Crop, Soil and Environmental SciencesUniversity of ArkansasFayettevilleARUSA
| | | | - Paul Allen Counce
- Cell and Molecular Biology ProgramUniversity of ArkansasFayettevilleARUSA
- Department of Crop, Soil and Environmental SciencesUniversity of ArkansasFayettevilleARUSA
- Rice Research and Extension CenterStuttgartARUSA
| | - Vibha Srivastava
- Cell and Molecular Biology ProgramUniversity of ArkansasFayettevilleARUSA
- Department of Crop, Soil and Environmental SciencesUniversity of ArkansasFayettevilleARUSA
- Department of HorticultureUniversity of ArkansasFayettevilleARUSA
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36
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Park JR, Kim EG, Jang YH, Kim KM. Screening and identification of genes affecting grain quality and spikelet fertility during high-temperature treatment in grain filling stage of rice. BMC PLANT BIOLOGY 2021; 21:263. [PMID: 34098898 PMCID: PMC8186072 DOI: 10.1186/s12870-021-03056-9] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/05/2021] [Accepted: 05/17/2021] [Indexed: 05/14/2023]
Abstract
BACKGROUND Recent temperature increases due to rapid climate change have negatively affected rice yield and grain quality. Particularly, high temperatures during right after the flowering stage reduce spikelet fertility, while interfering with sugar energy transport, and cause severe damage to grain quality by forming chalkiness grains. The effect of high-temperature on spikelet fertility and grain quality during grain filling stage was evaluated using a double haploid line derived from another culture of F1 by crossing Cheongcheong and Nagdong cultivars. Quantitative trait locus (QTL) mapping identifies candidate genes significantly associated with spikelet fertility and grain quality at high temperatures. RESULTS Our analysis screened OsSFq3 that contributes to spikelet fertility and grain quality at high-temperature. OsSFq3 was fine-mapped in the region RM15749-RM15689 on chromosome 3, wherein four candidate genes related to the synthesis and decomposition of amylose, a starch component, were predicted. Four major candidate genes, including OsSFq3, and 10 different genes involved in the synthesis and decomposition of amylose and amylopectin, which are starch constituents, together with relative expression levels were analyzed. OsSFq3 was highly expressed during the initial stage of high-temperature treatment. It exhibited high homology with FLOURY ENDOSPERM 6 in Gramineae plants and is therefore expected to function similarly. CONCLUSION The QTL, major candidate genes, and OsSFq3 identified herein could be effectively used in breeding rice varieties to improve grain quality, while tolerating high temperatures, to cope with climate changes. Furthermore, linked markers can aid in marker-assisted selection of high-quality and -yield rice varieties tolerant to high temperatures.
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Affiliation(s)
- Jae-Ryoung Park
- Division of Plant Biosciences, School of Applied Biosciences, College of Agriculture and Life Science, Kyungpook National University, Daegu, 41566 Republic of Korea
- Coastal Agriculture Research Institute, Kyungpook National University, Daegu, 41566 Republic of Korea
| | - Eun-Gyeong Kim
- Division of Plant Biosciences, School of Applied Biosciences, College of Agriculture and Life Science, Kyungpook National University, Daegu, 41566 Republic of Korea
| | - Yoon-Hee Jang
- Division of Plant Biosciences, School of Applied Biosciences, College of Agriculture and Life Science, Kyungpook National University, Daegu, 41566 Republic of Korea
| | - Kyung-Min Kim
- Division of Plant Biosciences, School of Applied Biosciences, College of Agriculture and Life Science, Kyungpook National University, Daegu, 41566 Republic of Korea
- Coastal Agriculture Research Institute, Kyungpook National University, Daegu, 41566 Republic of Korea
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37
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Yang W, Liang J, Hao Q, Luan X, Tan Q, Lin S, Zhu H, Liu G, Liu Z, Bu S, Wang S, Zhang G. Fine mapping of two grain chalkiness QTLs sensitive to high temperature in rice. RICE (NEW YORK, N.Y.) 2021; 14:33. [PMID: 33792792 PMCID: PMC8017073 DOI: 10.1186/s12284-021-00476-x] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/03/2021] [Accepted: 03/23/2021] [Indexed: 05/03/2023]
Abstract
BACKGROUND Grain chalkiness is one of important factors affected rice grain quality. It is known that chalkiness is affected by the high temperature during the seed filling period. Although a larger of QTLs for chalkiness were reported across all 12 chromosomes, only a few of the QTLs were fine mapped or cloned up to now. Here, we fine map two QTLs for chalkiness in two single-segment substitution lines (SSSLs), 11-09 with substitution segment from O. sativa and HP67-11 with substitution segment from O. glaberrima. RESULTS The grain chalkiness of SSSLs 11-09 and HP67-11 was significantly lower than that in the recipient Huajingxian 74 (HJX74) in consecutive 8 cropping seasons. The regression correlation analysis showed that percentage of chalky grain (PCG) and percentage of chalky area (PCA) were significantly and positively correlated with percentage of grain chalkiness (PGC). Two QTLs for grain chalkiness were located on two chromosomes by substitution mapping. qPGC9 was mapped on chromosome 9 with an estimated interval of 345.6 kb. qPGC11 was located on chromosome 11 and delimited to a 432.1 kb interval in the O. sativa genome and a 332.9 kb interval in the O. glaberrima genome. qPGC11 is a QTL for grain chalkiness from O. glaberrima and was mapped in a new region of chromosome 11. The effect of two QTLs was incomplete dominance. The additive effects of two QTLs on chalkiness in second cropping season (SCS) were significantly greater than that in first cropping season (FCS). CONCLUSIONS qPGC11 is a new QTL for grain chalkiness. The two QTLs were fine mapped. The donor alleles of qPGC9 and qPGC11 were sensitive to the high temperature of FCS.
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Affiliation(s)
- Weifeng Yang
- Guangdong Provincial Key Laboratory of Plant Molecular Breeding, State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, South China Agricultural University, Guangzhou, 510642, China
| | - Jiayan Liang
- Guangdong Provincial Key Laboratory of Plant Molecular Breeding, State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, South China Agricultural University, Guangzhou, 510642, China
| | - Qingwen Hao
- Guangdong Provincial Key Laboratory of Plant Molecular Breeding, State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, South China Agricultural University, Guangzhou, 510642, China
| | - Xin Luan
- Guangdong Provincial Key Laboratory of Plant Molecular Breeding, State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, South China Agricultural University, Guangzhou, 510642, China
| | - Quanya Tan
- Guangdong Provincial Key Laboratory of Plant Molecular Breeding, State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, South China Agricultural University, Guangzhou, 510642, China
| | - Shiwan Lin
- Guangdong Provincial Key Laboratory of Plant Molecular Breeding, State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, South China Agricultural University, Guangzhou, 510642, China
| | - Haitao Zhu
- Guangdong Provincial Key Laboratory of Plant Molecular Breeding, State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, South China Agricultural University, Guangzhou, 510642, China
| | - Guifu Liu
- Guangdong Provincial Key Laboratory of Plant Molecular Breeding, State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, South China Agricultural University, Guangzhou, 510642, China
| | - Zupei Liu
- Guangdong Provincial Key Laboratory of Plant Molecular Breeding, State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, South China Agricultural University, Guangzhou, 510642, China
| | - Suhong Bu
- Guangdong Provincial Key Laboratory of Plant Molecular Breeding, State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, South China Agricultural University, Guangzhou, 510642, China
| | - Shaokui Wang
- Guangdong Provincial Key Laboratory of Plant Molecular Breeding, State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, South China Agricultural University, Guangzhou, 510642, China.
| | - Guiquan Zhang
- Guangdong Provincial Key Laboratory of Plant Molecular Breeding, State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, South China Agricultural University, Guangzhou, 510642, China.
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Ayaad M, Han Z, Zheng K, Hu G, Abo-Yousef M, Sobeih SES, Xing Y. Bin-based genome-wide association studies reveal superior alleles for improvement of appearance quality using a 4-way MAGIC population in rice. J Adv Res 2020; 28:183-194. [PMID: 33364055 PMCID: PMC7753235 DOI: 10.1016/j.jare.2020.08.001] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2020] [Revised: 07/19/2020] [Accepted: 08/02/2020] [Indexed: 12/18/2022] Open
Abstract
4-way Multiparental population covered the limitations of the biparental structure. The combination of SNP and bin-GWAS showed a powerful tool for QTL mapping. qPGWC8.2 harbored a novel predicted gene for rice chalkiness quality.
Introduction The multiparental population provides us the chance to identify superior alleles controlling a trait for genetic improvement. Genome wide association studies at bin level (bin-GWAS) are expected to be more power in QTL mapping than GWAS at SNP level (SNP-GWAS). Objectives This study is to estimate genetic effects of QTL conferring grain appearance quality in rice by SNP-GWAS and bin-GWAS, compare their power in QTL mapping and identify the superior alleles of all detected QTL from 4 parents for genetic improvement. Methods A 4-way MAGIC population and its four founders were cultivated in two environments to dissect the genetic basis of rice grain appearance quality. Both SNP-GWAS and bin-GWAS were conducted for QTL mapping. Multiple comparison among 4 parental bin/alleles was used to identify the superior alleles. Results A total of 16 and 20 QTL associated with grain appearance quality were identified by SNP- and bin-GWAS, respectively. A minor chalkiness QTL qPGWC8.2/qDEC8 was assigned to a 30-kb genomic region, in which OsMH_08T0121900 is the potential candidate gene because its encoded protein, glucan endo-1,3-beta-glucosidase precursor is involved in the starch and sucrose metabolism pathway. The superior parental alleles for GS3, GL3.1, GW5, GW7, and Chalk5 and two QTLs were almost carried by the high-quality parents Cypress and Yuejingsimiao (YJSM), while the poor-quality parent Guichao-2 (GC2) always carried the inferior alleles. The top five recombinant inbred lines with the highest quality of grain shape and chalkiness traits all carried gene combinations of superior alleles. Conclusions Both SNP- and bin-GWAS methods are encouraged for joint QTL mapping with MAGIC population. qPGWC8.2/qDEC8 is a novel candidate gene strongly associated with chalkiness. The superior alleles of GS3, GW5, GL3.1, GW7, Chalk5 and qPGWC8.2 were identified, and the pyramiding of these superior alleles is helpful to improve rice appearance quality.
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Affiliation(s)
- Mohammed Ayaad
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agriculture University, Wuhan 430070, China.,Plant Research Department, Nuclear Research Center, Atomic Energy Authority, Abo-Zaabal 13759, Egypt
| | - Zhongmin Han
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agriculture University, Wuhan 430070, China
| | - Kou Zheng
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agriculture University, Wuhan 430070, China
| | - Gang Hu
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agriculture University, Wuhan 430070, China
| | - Mahmoud Abo-Yousef
- Rice Research and Training Center, Agriculture Research Center, Sakha 33717, Egypt
| | - Sobeih El S Sobeih
- Plant Research Department, Nuclear Research Center, Atomic Energy Authority, Abo-Zaabal 13759, Egypt
| | - Yongzhong Xing
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agriculture University, Wuhan 430070, China
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Xu Y, Zhang L, Ou S, Wang R, Wang Y, Chu C, Yao S. Natural variations of SLG1 confer high-temperature tolerance in indica rice. Nat Commun 2020; 11:5441. [PMID: 33116138 PMCID: PMC7595236 DOI: 10.1038/s41467-020-19320-9] [Citation(s) in RCA: 48] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2020] [Accepted: 10/06/2020] [Indexed: 01/28/2023] Open
Abstract
With global warming and climate change, breeding crop plants tolerant to high-temperature stress is of immense significance. tRNA 2-thiolation is a highly conserved form of tRNA modification among living organisms. Here, we report the identification of SLG1 (Slender Guy 1), which encodes the cytosolic tRNA 2-thiolation protein 2 (RCTU2) in rice. SLG1 plays a key role in the response of rice plants to high-temperature stress at both seedling and reproductive stages. Dysfunction of SLG1 results in plants with thermosensitive phenotype, while overexpression of SLG1 enhances the tolerance of plants to high temperature. SLG1 is differentiated between the two Asian cultivated rice subspecies, indica and japonica, and the variations at both promoter and coding regions lead to an increased level of thiolated tRNA and enhanced thermotolerance of indica rice varieties. Our results demonstrate that the allelic differentiation of SLG1 confers indica rice to high-temperature tolerance, and tRNA thiolation pathway might be a potential target in the next generation rice breeding for the warming globe. Understanding the mechanism of high-temperature tolerance will help to breed crops adaptive to warming climate. Here, the authors show SLG1, a cytosolic tRNA 2-thiolation protein 2 encoding gene, is differentiated between the two Asian cultivated rice subspecies and confers high temperature tolerance of indica rice.
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Affiliation(s)
- Yufang Xu
- State Key Laboratory of Plant Genomics, Institute of Genetics and Developmental Biology, the Innovative Academy of Seed Design, Chinese Academy of Sciences, Beijing, 100101, China.,College of Advanced Agricultural Sciences, University of Chinese Academy of Sciences, Beijing, 100039, China
| | - Li Zhang
- State Key Laboratory of Plant Genomics, Institute of Genetics and Developmental Biology, the Innovative Academy of Seed Design, Chinese Academy of Sciences, Beijing, 100101, China.,College of Advanced Agricultural Sciences, University of Chinese Academy of Sciences, Beijing, 100039, China
| | - Shujun Ou
- Department of Ecology, Evolution, and Organismal Biology, Iowa State University, Ames, IA, 50011, USA
| | - Ruci Wang
- State Key Laboratory of Plant Genomics, Institute of Genetics and Developmental Biology, the Innovative Academy of Seed Design, Chinese Academy of Sciences, Beijing, 100101, China
| | - Yueming Wang
- State Key Laboratory of Plant Genomics, Institute of Genetics and Developmental Biology, the Innovative Academy of Seed Design, Chinese Academy of Sciences, Beijing, 100101, China
| | - Chengcai Chu
- State Key Laboratory of Plant Genomics, Institute of Genetics and Developmental Biology, the Innovative Academy of Seed Design, Chinese Academy of Sciences, Beijing, 100101, China. .,College of Advanced Agricultural Sciences, University of Chinese Academy of Sciences, Beijing, 100039, China.
| | - Shanguo Yao
- State Key Laboratory of Plant Genomics, Institute of Genetics and Developmental Biology, the Innovative Academy of Seed Design, Chinese Academy of Sciences, Beijing, 100101, China.
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Xi M, Wu W, Xu Y, Zhou Y, Chen G, Ji Y, Sun X. iTRAQ-based quantitative proteomic analysis reveals the metabolic pathways of grain chalkiness in response to nitrogen topdressing in rice. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2020; 154:622-635. [PMID: 32717594 DOI: 10.1016/j.plaphy.2020.06.012] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/12/2020] [Revised: 05/25/2020] [Accepted: 06/08/2020] [Indexed: 06/11/2023]
Abstract
Grain chalkiness is a highly undesirable trait that adversely affects rice quality. This chalkiness is easily influenced by the application of chemical nitrogen (N) fertilizer at the late growth stage. However, on the molecular mechanism underlying grain chalkiness caused by late N fertilization is not fully clear. In this study, proteomic differences in expression were determined in developing grains exposed to N topdressing (108 kg N ha-1, N+) and a control (0 kg N ha-1, N0), using the rice variety OM052, which has a high level of chalkiness. A total of 198 differentially expressed proteins (DEPs) were detected between the N+ and N0 treatments, including 9 up-regulated proteins and 189 down-regulated proteins. Of these DEPs, approximately half were associated with carbohydrate metabolism (glycolysis, tricarboxylic acid cycle, pentose phosphate pathway, fermentation and starch metabolism) and N metabolism (protein synthesis, folding, degradation and storage, amino acid synthesis and catabolism). A detailed pathway dissection revealed that multiple metabolic pathways during the grain filling stage were involved in the N-induced grain chalkiness. Reduced abundances of proteins associated with respiratory metabolism and energy metabolism drastically impaired the biosynthesis and deposition of starch in the developmental endosperms, which might be a crucial trigger for the increase in grain chalkiness. The disturbed N metabolism and differential expression of storage proteins up-regulated during the grain filling stage are able to partially explain the occurrence of grain chalkiness in rice.
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Affiliation(s)
- Min Xi
- Rice Research Institute, Anhui Academy of Agricultural Sciences, Hefei, 230031, Anhui Province, PR China
| | - Wenge Wu
- Rice Research Institute, Anhui Academy of Agricultural Sciences, Hefei, 230031, Anhui Province, PR China.
| | - Youzun Xu
- Rice Research Institute, Anhui Academy of Agricultural Sciences, Hefei, 230031, Anhui Province, PR China
| | - Yongjin Zhou
- Rice Research Institute, Anhui Academy of Agricultural Sciences, Hefei, 230031, Anhui Province, PR China
| | - Gang Chen
- Rice Research Institute, Anhui Academy of Agricultural Sciences, Hefei, 230031, Anhui Province, PR China
| | - Yalan Ji
- Rice Research Institute, Anhui Academy of Agricultural Sciences, Hefei, 230031, Anhui Province, PR China
| | - Xueyuan Sun
- Rice Research Institute, Anhui Academy of Agricultural Sciences, Hefei, 230031, Anhui Province, PR China
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McClung AM, Chen M, Jodari F, Famoso AN, Addison CK, Linscombe SD, Ottis BV, Moldenhauer KAK, Walker TW, Wilson LT, McKenzie KS. Use of objective imaging systems to assess subjective grain appearance traits important to the US rice industry. Cereal Chem 2020. [DOI: 10.1002/cche.10251] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Anna M. McClung
- Dale Bumpers National Rice Research Center USDA, ARS Stuttgart AR USA
| | - Ming‐Hsuan Chen
- Dale Bumpers National Rice Research Center USDA, ARS Stuttgart AR USA
| | - Farman Jodari
- California Cooperative Rice Research Foundation, Inc. Rice Experiment Station Biggs CA USA
| | - Adam N. Famoso
- Rice Research Station Louisiana State University Rayne LA USA
| | | | | | | | | | | | - Lloyd T. Wilson
- AgriLife Research Texas A&M University System Beaumont TX USA
| | - Kent S. McKenzie
- California Cooperative Rice Research Foundation, Inc. Rice Experiment Station Biggs CA USA
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Fiaz S, Ahmad S, Noor MA, Wang X, Younas A, Riaz A, Riaz A, Ali F. Applications of the CRISPR/Cas9 System for Rice Grain Quality Improvement: Perspectives and Opportunities. Int J Mol Sci 2019; 20:E888. [PMID: 30791357 PMCID: PMC6412304 DOI: 10.3390/ijms20040888] [Citation(s) in RCA: 55] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2018] [Revised: 02/07/2019] [Accepted: 02/15/2019] [Indexed: 02/06/2023] Open
Abstract
Grain quality improvement is a key target for rice breeders, along with yield. It is a multigenic trait that is simultaneously influenced by many factors. Over the past few decades, breeding for semi-dwarf cultivars and hybrids has significantly contributed to the attainment of high yield demands but reduced grain quality, which thus needs the attention of researchers. The availability of rice genome sequences has facilitated gene discovery, targeted mutagenesis, and revealed functional aspects of rice grain quality attributes. Some success has been achieved through the application of molecular markers to understand the genetic mechanisms for better rice grain quality; however, researchers have opted for novel strategies. Genomic alteration employing genome editing technologies (GETs) like clustered regularly interspaced short palindromic repeats (CRISPR)/CRISPR-associated protein 9 (Cas9) for reverse genetics has opened new avenues of research in the life sciences, including for rice grain quality improvement. Currently, CRISPR/Cas9 technology is widely used by researchers for genome editing to achieve the desired biological objectives, because of its simple targeting. Over the past few years many genes that are related to various aspects of rice grain quality have been successfully edited via CRISPR/Cas9 technology. Interestingly, studies on functional genomics at larger scales have become possible because of the availability of GETs. In this review, we discuss the progress made in rice by employing the CRISPR/Cas9 editing system and its eminent applications. We also elaborate possible future avenues of research with this system, and our understanding regarding the biological mechanism of rice grain quality improvement.
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Affiliation(s)
- Sajid Fiaz
- State Key Laboratory of Rice Biology, China National Rice Research Institute, Hangzhou 310006, China.
| | - Shakeel Ahmad
- State Key Laboratory of Rice Biology, China National Rice Research Institute, Hangzhou 310006, China.
| | - Mehmood Ali Noor
- Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Key Laboratory of Crop Physiology and Ecology, Ministry of Agriculture, Beijing 100081, China.
| | - Xiukang Wang
- College of Life Sciences, Yan'an University, Yan'an 716000, Shaanxi, China.
| | - Afifa Younas
- Department of Botany, Lahore College for Women University, Lahore 54000, Pakistan.
| | - Aamir Riaz
- State Key Laboratory of Rice Biology, China National Rice Research Institute, Hangzhou 310006, China.
| | - Adeel Riaz
- Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, China.
| | - Fahad Ali
- State Key Laboratory of Rice Biology, China National Rice Research Institute, Hangzhou 310006, China.
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