51
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Luo S, Ma Q, Zhong Y, Jing J, Wei Z, Zhou W, Lu X, Tian Y, Zhang P. Editing of the starch branching enzyme gene SBE2 generates high-amylose storage roots in cassava. PLANT MOLECULAR BIOLOGY 2022; 106:67-84. [PMID: 34792751 DOI: 10.1007/s11103-021-01130-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/16/2020] [Accepted: 02/09/2021] [Indexed: 05/25/2023]
Abstract
The production of high-amylose cassava through CRISPR/Cas9-mediated mutagenesis of the starch branching enzyme gene SBE2 was firstly achieved. High-amylose cassava (Manihot esculenta Crantz) is desirable for starch industrial applications and production of healthier processed food for human consumption. In this study, we report the production of high-amylose cassava through CRISPR/Cas9-mediated mutagenesis of the starch branching enzyme 2 (SBE2). Mutations in two targeted exons of SBE2 were identified in all regenerated plants; these mutations, which included nucleotide insertions, and short or long deletions in the SBE2 gene, were classified into eight mutant lines. Three mutants, M6, M7 and M8, with long fragment deletions in the second exon of SBE2 showed no accumulation of SBE2 protein. After harvest from the field, significantly higher amylose (up to 56% in apparent amylose content) and resistant starch (up to 35%) was observed in these mutants compared with the wild type, leading to darker blue coloration of starch granules after quick iodine staining and altered starch viscosity with a higher pasting temperature and peak time. Further 1H-NMR analysis revealed a significant reduction in the degree of starch branching, together with fewer short chains (degree of polymerization [DP] 15-25) and more long chains (DP>25 and especially DP>40) of amylopectin, which indicates that cassava SBE2 catalyzes short chain formation during amylopectin biosynthesis. Transition from A- to B-type crystallinity was also detected in the starches. Our study showed that CRISPR/Cas9-mediated mutagenesis of starch biosynthetic genes in cassava is an effective approach for generating novel varieties with valuable starch properties for food and industrial applications.
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Affiliation(s)
- Shu Luo
- National Key Laboratory of Plant Molecular Genetics, CAS Center for Excellence in Molecular Plant Sciences, Chinese Academy of Sciences, Shanghai, 200032, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Qiuxiang Ma
- National Key Laboratory of Plant Molecular Genetics, CAS Center for Excellence in Molecular Plant Sciences, Chinese Academy of Sciences, Shanghai, 200032, China.
| | - Yingying Zhong
- National Key Laboratory of Plant Molecular Genetics, CAS Center for Excellence in Molecular Plant Sciences, Chinese Academy of Sciences, Shanghai, 200032, China
- Shanghai Sanshu Biotechnology Co., LTD, Shanghai, 201210, China
| | - Jianling Jing
- National Key Laboratory of Plant Molecular Genetics, CAS Center for Excellence in Molecular Plant Sciences, Chinese Academy of Sciences, Shanghai, 200032, China
| | - Zusheng Wei
- Guangxi Subtropical Crops Research Institute, Nanning, 530001, China
| | - Wenzhi Zhou
- National Key Laboratory of Plant Molecular Genetics, CAS Center for Excellence in Molecular Plant Sciences, Chinese Academy of Sciences, Shanghai, 200032, China
- Shanghai Sanshu Biotechnology Co., LTD, Shanghai, 201210, China
| | - Xinlu Lu
- National Key Laboratory of Plant Molecular Genetics, CAS Center for Excellence in Molecular Plant Sciences, Chinese Academy of Sciences, Shanghai, 200032, China
| | - Yinong Tian
- Guangxi Subtropical Crops Research Institute, Nanning, 530001, China
| | - Peng Zhang
- National Key Laboratory of Plant Molecular Genetics, CAS Center for Excellence in Molecular Plant Sciences, Chinese Academy of Sciences, Shanghai, 200032, China.
- University of Chinese Academy of Sciences, Beijing, China.
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52
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Okpala NE, Aloryi KD, An T, He L, Tang X. The roles of starch branching enzymes and starch synthase in the biosynthesis of amylose in rice. J Cereal Sci 2022. [DOI: 10.1016/j.jcs.2021.103393] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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53
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Luo S, Ma Q, Zhong Y, Jing J, Wei Z, Zhou W, Lu X, Tian Y, Zhang P. Editing of the starch branching enzyme gene SBE2 generates high-amylose storage roots in cassava. PLANT MOLECULAR BIOLOGY 2022; 108:429-442. [PMID: 34792751 DOI: 10.1007/s11103-021-01215-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/12/2021] [Accepted: 11/03/2021] [Indexed: 06/13/2023]
Abstract
The production of high-amylose cassava through CRISPR/Cas9-mediated mutagenesis of the starch branching enzyme gene SBE2 was firstly achieved. High-amylose cassava (Manihot esculenta Crantz) is desirable for starch industrial applications and production of healthier processed food for human consumption. In this study, we report the production of high-amylose cassava through CRISPR/Cas9-mediated mutagenesis of the starch branching enzyme 2 (SBE2). Mutations in two targeted exons of SBE2 were identified in all regenerated plants; these mutations, which included nucleotide insertions, and short or long deletions in the SBE2 gene, were classified into eight mutant lines. Three mutants, M6, M7 and M8, with long fragment deletions in the second exon of SBE2 showed no accumulation of SBE2 protein. After harvest from the field, significantly higher amylose (up to 56% in apparent amylose content) and resistant starch (up to 35%) was observed in these mutants compared with the wild type, leading to darker blue coloration of starch granules after quick iodine staining and altered starch viscosity with a higher pasting temperature and peak time. Further 1H-NMR analysis revealed a significant reduction in the degree of starch branching, together with fewer short chains (degree of polymerization [DP] 15-25) and more long chains (DP>25 and especially DP>40) of amylopectin, which indicates that cassava SBE2 catalyzes short chain formation during amylopectin biosynthesis. Transition from A- to B-type crystallinity was also detected in the starches. Our study showed that CRISPR/Cas9-mediated mutagenesis of starch biosynthetic genes in cassava is an effective approach for generating novel varieties with valuable starch properties for food and industrial applications.
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Affiliation(s)
- Shu Luo
- National Key Laboratory of Plant Molecular Genetics, CAS Center for Excellence in Molecular Plant Sciences, Chinese Academy of Sciences, Shanghai, 200032, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Qiuxiang Ma
- National Key Laboratory of Plant Molecular Genetics, CAS Center for Excellence in Molecular Plant Sciences, Chinese Academy of Sciences, Shanghai, 200032, China.
| | - Yingying Zhong
- National Key Laboratory of Plant Molecular Genetics, CAS Center for Excellence in Molecular Plant Sciences, Chinese Academy of Sciences, Shanghai, 200032, China
- Shanghai Sanshu Biotechnology Co., LTD, Shanghai, 201210, China
| | - Jianling Jing
- National Key Laboratory of Plant Molecular Genetics, CAS Center for Excellence in Molecular Plant Sciences, Chinese Academy of Sciences, Shanghai, 200032, China
| | - Zusheng Wei
- Guangxi Subtropical Crops Research Institute, Nanning, 530001, China
| | - Wenzhi Zhou
- National Key Laboratory of Plant Molecular Genetics, CAS Center for Excellence in Molecular Plant Sciences, Chinese Academy of Sciences, Shanghai, 200032, China
- Shanghai Sanshu Biotechnology Co., LTD, Shanghai, 201210, China
| | - Xinlu Lu
- National Key Laboratory of Plant Molecular Genetics, CAS Center for Excellence in Molecular Plant Sciences, Chinese Academy of Sciences, Shanghai, 200032, China
| | - Yinong Tian
- Guangxi Subtropical Crops Research Institute, Nanning, 530001, China
| | - Peng Zhang
- National Key Laboratory of Plant Molecular Genetics, CAS Center for Excellence in Molecular Plant Sciences, Chinese Academy of Sciences, Shanghai, 200032, China.
- University of Chinese Academy of Sciences, Beijing, China.
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54
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Zhang C, Hao W, Lu Y, Yang Y, Chen Z, Li Q, Fan X, Luo J, Liu Q. A comparative evaluation of the effect of SSI and Wx allelic variation on rice grain quality and starch physicochemical properties. Food Chem 2022; 371:131205. [PMID: 34598118 DOI: 10.1016/j.foodchem.2021.131205] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2021] [Revised: 08/26/2021] [Accepted: 09/19/2021] [Indexed: 11/24/2022]
Abstract
Near-isogenic lines Nip(Wxb/SSIj), Nip(Wxb/SSIi), Nip(wx/SSIj) and Nip(wx/SSIi) in the japonica rice Nipponbare (Nip) background containing allelic variation in the starch synthase gene SSI and Wx were investigated for cooked rice grain quality, starch morphology, pasting profiles, fine structure and crystallinity characteristics. Rice grains carrying the SSIi allele had poor cooked rice taste in the Wxb background. The introduction of SSIi caused reduced cooked rice grain elongation, especially in the wx background. Starch granule size was reduced in SSIi rice and the viscosity of flour and starch prepared from SSIi rice was markedly increased. Moreover, analysis of the starch molecular structure revealed a remarkable increase in the short amylopectin chains and reduced starch relative crystallinity compared with SSIj rice, which resulted in decreased gelatinization characteristics. These results suggest that SSI allelic variation has multiple effects on rice grain quality, as well as starch fine structure.
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Affiliation(s)
- Changquan Zhang
- Jiangsu Key Laboratory of Crop Genomics and Molecular Breeding/State Key Laboratory of Hybrid Rice/Jiangsu Key Laboratory of Crop Genetics and Physiology, Yangzhou University, Yangzhou 225009, China; Key Laboratory of Plant Functional Genomics of the Ministry of Education/Jiangsu Co-Innovation Center for Modern Production Technology of Grain Crops, College of Agriculture, Yangzhou University, Yangzhou 225009, China
| | - Weizhuo Hao
- Key Laboratory of Plant Functional Genomics of the Ministry of Education/Jiangsu Co-Innovation Center for Modern Production Technology of Grain Crops, College of Agriculture, Yangzhou University, Yangzhou 225009, China
| | - Yan Lu
- Key Laboratory of Plant Functional Genomics of the Ministry of Education/Jiangsu Co-Innovation Center for Modern Production Technology of Grain Crops, College of Agriculture, Yangzhou University, Yangzhou 225009, China
| | - Yong Yang
- Key Laboratory of Plant Functional Genomics of the Ministry of Education/Jiangsu Co-Innovation Center for Modern Production Technology of Grain Crops, College of Agriculture, Yangzhou University, Yangzhou 225009, China
| | - Zhuanzhuan Chen
- Key Laboratory of Plant Functional Genomics of the Ministry of Education/Jiangsu Co-Innovation Center for Modern Production Technology of Grain Crops, College of Agriculture, Yangzhou University, Yangzhou 225009, China
| | - Qianfeng Li
- Key Laboratory of Plant Functional Genomics of the Ministry of Education/Jiangsu Co-Innovation Center for Modern Production Technology of Grain Crops, College of Agriculture, Yangzhou University, Yangzhou 225009, China
| | - Xiaolei Fan
- Key Laboratory of Plant Functional Genomics of the Ministry of Education/Jiangsu Co-Innovation Center for Modern Production Technology of Grain Crops, College of Agriculture, Yangzhou University, Yangzhou 225009, China
| | - Jixun Luo
- Commonwealth Scientific and Industrial Research Organisation, Agriculture & Food/Precision Health Future Science Platform, Acton, ACT 2601, Australia
| | - Qiaoquan Liu
- Jiangsu Key Laboratory of Crop Genomics and Molecular Breeding/State Key Laboratory of Hybrid Rice/Jiangsu Key Laboratory of Crop Genetics and Physiology, Yangzhou University, Yangzhou 225009, China; Key Laboratory of Plant Functional Genomics of the Ministry of Education/Jiangsu Co-Innovation Center for Modern Production Technology of Grain Crops, College of Agriculture, Yangzhou University, Yangzhou 225009, China.
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55
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Cai Y, Chen H, Xiao N, Wu Y, Yu L, Chen Z, Liu J, Shi W, Pan C, Li Y, Zhou C, Ji H, Huang N, Zhang X, Zhang Y, Li A. Substandard starch grain4 may function in amyloplast development by influencing starch and lipid metabolism in rice endosperm. JOURNAL OF PLANT PHYSIOLOGY 2022; 270:153638. [PMID: 35149441 DOI: 10.1016/j.jplph.2022.153638] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Revised: 02/02/2022] [Accepted: 02/02/2022] [Indexed: 05/02/2023]
Abstract
The amyloplast is a specialized plastid in rice endosperm cells where starch is synthesized and stored as starch granules (SGs). However, little is known about the molecular mechanism underlying amyloplast and SG development. In this study, a novel mutant (c134) demonstrating a floury endosperm with enlarged SGs and amyloplasts was identified. The floury endosperm was caused by rounder, loosely packed SG. Grain-quality profile and expression analysis showed reduced contents of total starch and amylose in the c134 mutant, as well as reduced expression of a number of genes involved in starch biosynthesis. Galactosyldiacylglycerol (GDG) content and fatty acid synthesis play important roles in plastid development, and in the c134 endosperm, an obvious decrease in GDG and various fatty acids was observed, with down-regulated expression of various genes involved in lipid biosynthesis. Furthermore, map-based cloning revealed an amino acid substitution (glycine to aspartic acid) in the substandard starch grain4 (SSG4) protein. The results of this study suggest that SSG4 influences the regulation of starch and lipid metabolism as well as amyloplast development, a finding that is useful for potential genetic improvement of rice grain quality in future starch and lipid breeding and biotechnology.
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Affiliation(s)
- Yue Cai
- Lixiahe Agricultural Research Institute of Jiangsu Province, Yangzhou, 225007, China; Yangzhou University, Yangzhou, 225009, China.
| | - Haiyuan Chen
- Provincial Key Laboratory of Agrobiology, Institute of Germplasm Resources and Biotechnology, Jiangsu Academy of Agricultural Sciences, Nanjing, China.
| | - Ning Xiao
- Lixiahe Agricultural Research Institute of Jiangsu Province, Yangzhou, 225007, China.
| | - Yunyu Wu
- Lixiahe Agricultural Research Institute of Jiangsu Province, Yangzhou, 225007, China.
| | - Ling Yu
- Lixiahe Agricultural Research Institute of Jiangsu Province, Yangzhou, 225007, China.
| | - Zichun Chen
- Lixiahe Agricultural Research Institute of Jiangsu Province, Yangzhou, 225007, China.
| | - Jianju Liu
- Lixiahe Agricultural Research Institute of Jiangsu Province, Yangzhou, 225007, China.
| | - Wei Shi
- Lixiahe Agricultural Research Institute of Jiangsu Province, Yangzhou, 225007, China.
| | - Cunhong Pan
- Lixiahe Agricultural Research Institute of Jiangsu Province, Yangzhou, 225007, China.
| | - Yuhong Li
- Lixiahe Agricultural Research Institute of Jiangsu Province, Yangzhou, 225007, China.
| | - Changhai Zhou
- Lixiahe Agricultural Research Institute of Jiangsu Province, Yangzhou, 225007, China.
| | - Hongjuan Ji
- Lixiahe Agricultural Research Institute of Jiangsu Province, Yangzhou, 225007, China.
| | - Niansheng Huang
- Lixiahe Agricultural Research Institute of Jiangsu Province, Yangzhou, 225007, China.
| | - Xiaoxiang Zhang
- Lixiahe Agricultural Research Institute of Jiangsu Province, Yangzhou, 225007, China.
| | - Yunhui Zhang
- Provincial Key Laboratory of Agrobiology, Institute of Germplasm Resources and Biotechnology, Jiangsu Academy of Agricultural Sciences, Nanjing, China.
| | - Aihong Li
- Lixiahe Agricultural Research Institute of Jiangsu Province, Yangzhou, 225007, China; Jiangsu Key Laboratory of Crop Genomics and Molecular Breeding, Yangzhou University, Yangzhou, 225009, China.
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56
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Li R, Zheng W, Jiang M, Zhang H. A review of starch biosynthesis in cereal crops and its potential breeding applications in rice ( Oryza Sativa L.). PeerJ 2022; 9:e12678. [PMID: 35036154 PMCID: PMC8710062 DOI: 10.7717/peerj.12678] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2021] [Accepted: 12/02/2021] [Indexed: 11/20/2022] Open
Abstract
Starch provides primary storage of carbohydrates, accounting for approximately 85% of the dry weight of cereal endosperm. Cereal seeds contribute to maximum annual starch production and provide the primary food for humans and livestock worldwide. However, the growing demand for starch in food and industry and the increasing loss of arable land with urbanization emphasizes the urgency to understand starch biosynthesis and its regulation. Here, we first summarized the regulatory signaling pathways about leaf starch biosynthesis. Subsequently, we paid more attention to how transcriptional factors (TFs) systematically respond to various stimulants via the regulation of the enzymes during starch biosynthesis. Finally, some strategies to improve cereal yield and quality were put forward based on the previous reports. This review would collectively help to design future studies on starch biosynthesis in cereal crops.
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Affiliation(s)
- Ruiqing Li
- State Key Laboratory of Rice Biology and Chinese National Center for Rice Improvement, China National Rice Research Institute, Hangzhou, China.,College of Agronomy, Anhui Agricultural University, Hefei, China
| | - Wenyin Zheng
- College of Agronomy, Anhui Agricultural University, Hefei, China
| | - Meng Jiang
- State Key Laboratory of Rice Biology, Institute of Crop Sciences, Zhejiang University, Hangzhou, China
| | - Huali Zhang
- State Key Laboratory of Rice Biology and Chinese National Center for Rice Improvement, China National Rice Research Institute, Hangzhou, China
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57
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You H, Liang C, Zhang O, Xu H, Xu L, Chen Y, Xiang X. Variation of resistant starch content in different processing types and their starch granules properties in rice. Carbohydr Polym 2022; 276:118742. [PMID: 34823776 DOI: 10.1016/j.carbpol.2021.118742] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2021] [Revised: 09/29/2021] [Accepted: 10/09/2021] [Indexed: 11/29/2022]
Abstract
Ninety-nine lines from recombinant inbred lines were selected to investigate the effects of starch synthesis-related genes on resistant starch (RS) content in different proceeding types. RS in raw milled rice (RSm), hot cooked rice (RSc), and retrogradation rice (RSr) showed a wide variation among the lines, especially RSm arrived at 10.61%. Divergent variability of RSm, RSc and RSr indicated that there were different regulation mechanisms for them. Waxy wildtype allele (Wxa) could elevate RSm, RSc and RSr, but Soluble starch synthase IIa (SSIIa) only played a vital role in regulating RSm. Wxa-indica SSIIa could increase RSm, and Wxa-japonica SSIIa (SSIIaj) could elevate RSc and RSr. The mean diameter of Wxa-SSIIaj was significantly bigger than others. The bigger starch granules, the higher RSc and RSr. Starch granules morphology with high-RSm would have a higher percentage in polyhedral and angular shape. The results provide new information for rice breeding with high-RS content.
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Affiliation(s)
- Hui You
- Lab of Plant Molecular Genetics and Breeding, Southwest University of Science and Technology, Mianyang 621010, China
| | - Cheng Liang
- Lab of Plant Molecular Genetics and Breeding, Southwest University of Science and Technology, Mianyang 621010, China
| | - Ouling Zhang
- Lab of Plant Molecular Genetics and Breeding, Southwest University of Science and Technology, Mianyang 621010, China
| | - Haoyang Xu
- Lab of Plant Molecular Genetics and Breeding, Southwest University of Science and Technology, Mianyang 621010, China
| | - Liang Xu
- Lab of Plant Molecular Genetics and Breeding, Southwest University of Science and Technology, Mianyang 621010, China
| | - Yongjun Chen
- Rice Research Institute of Southwest University of Science and Technology, Mianyang 621010, China.
| | - Xunchao Xiang
- Lab of Plant Molecular Genetics and Breeding, Southwest University of Science and Technology, Mianyang 621010, China.
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58
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Zeng Y, Ali MK, Du J, Li X, Yang X, Yang J, Pu X, Yang L, Hong J, Mou B, Li L, Zhou Y. Resistant Starch in Rice: Its Biosynthesis and Mechanism of Action Against Diabetes-Related Diseases. FOOD REVIEWS INTERNATIONAL 2022. [DOI: 10.1080/87559129.2021.2024221] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Yawen Zeng
- Agricultural Biotechnology Key Laboratory of Yunnan Province, Biotechnology and Germplasm Resources Institute, Yunnan Academy of Agricultural Sciences, Kunming, China
| | - Muhammad Kazim Ali
- Agricultural Biotechnology Key Laboratory of Yunnan Province, Biotechnology and Germplasm Resources Institute, Yunnan Academy of Agricultural Sciences, Kunming, China
- Karachi Institute of Biotechnology and Genetic Engineering, University of Karachi, Karachi, Pakistan
| | - Juan Du
- Agricultural Biotechnology Key Laboratory of Yunnan Province, Biotechnology and Germplasm Resources Institute, Yunnan Academy of Agricultural Sciences, Kunming, China
| | - Xia Li
- Agricultural Biotechnology Key Laboratory of Yunnan Province, Biotechnology and Germplasm Resources Institute, Yunnan Academy of Agricultural Sciences, Kunming, China
| | - Xiaomeng Yang
- Agricultural Biotechnology Key Laboratory of Yunnan Province, Biotechnology and Germplasm Resources Institute, Yunnan Academy of Agricultural Sciences, Kunming, China
- Key Laboratory of the Southwestern Crop Gene Resources and Germplasm Innovation, Ministry of Agriculture, Kunming, China
| | - Jiazhen Yang
- Agricultural Biotechnology Key Laboratory of Yunnan Province, Biotechnology and Germplasm Resources Institute, Yunnan Academy of Agricultural Sciences, Kunming, China
| | - Xiaoying Pu
- Agricultural Biotechnology Key Laboratory of Yunnan Province, Biotechnology and Germplasm Resources Institute, Yunnan Academy of Agricultural Sciences, Kunming, China
| | - Li’E Yang
- Agricultural Biotechnology Key Laboratory of Yunnan Province, Biotechnology and Germplasm Resources Institute, Yunnan Academy of Agricultural Sciences, Kunming, China
| | - Jingan Hong
- Clinical Nutrition Department, The First People’s Hospital of Yunnan Province, Kunming, China
| | - Bo Mou
- Clinical Nutrition Department, The Second People’s Hospital of Yunnan Province, Kunming, China
| | - Ling Li
- Biomedical Engineering Research Center, Kunming Medical University, Kunming, China
| | - Yan Zhou
- Clinical Nutrition Department, The Second People’s Hospital of Yunnan Province, Kunming, China
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Yu S, Ali J, Zhou S, Ren G, Xie H, Xu J, Yu X, Zhou F, Peng S, Ma L, Yuan D, Li Z, Chen D, Zheng R, Zhao Z, Chu C, You A, Wei Y, Zhu S, Gu Q, He G, Li S, Liu G, Liu C, Zhang C, Xiao J, Luo L, Li Z, Zhang Q. From Green Super Rice to green agriculture: Reaping the promise of functional genomics research. MOLECULAR PLANT 2022; 15:9-26. [PMID: 34883279 DOI: 10.1016/j.molp.2021.12.001] [Citation(s) in RCA: 26] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/13/2021] [Revised: 11/30/2021] [Accepted: 12/03/2021] [Indexed: 06/13/2023]
Abstract
Producing sufficient food with finite resources to feed the growing global population while having a smaller impact on the environment has always been a great challenge. Here, we review the concept and practices of Green Super Rice (GSR) that have led to a paradigm shift in goals for crop genetic improvement and models of food production for promoting sustainable agriculture. The momentous achievements and global deliveries of GSR have been fueled by the integration of abundant genetic resources, functional gene discoveries, and innovative breeding techniques with precise gene and whole-genome selection and efficient agronomic management to promote resource-saving, environmentally friendly crop production systems. We also provide perspectives on new horizons in genomic breeding technologies geared toward delivering green and nutritious crop varieties to further enhance the development of green agriculture and better nourish the world population.
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Affiliation(s)
- Sibin Yu
- National Key Laboratory of Crop Genetic Improvement, Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan 430070, China
| | - Jauhar Ali
- International Rice Research Institute, DAPO Box 7777, Metro Manila, Philippines
| | - Shaochuan Zhou
- Guangdong Academy of Agricultural Sciences, Guangzhou, China
| | - Guangjun Ren
- Sichuan Academy of Agricultural Sciences, Chengdu, China
| | - Huaan Xie
- Fujian Academy of Agricultural Sciences, Fuzhou, China
| | - Jianlong Xu
- Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Xinqiao Yu
- Shanghai Agrobiological Gene Center, Shanghai, China
| | - Fasong Zhou
- China National Seed Group Co., Ltd, Beijing, China
| | - Shaobing Peng
- National Key Laboratory of Crop Genetic Improvement, Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan 430070, China
| | - Liangyong Ma
- China National Rice Research Institute, Hangzhou, China
| | | | - Zefu Li
- Anhui Academy of Agricultural Sciences, Hefei, China
| | - Dazhou Chen
- Jiangxi Academy of Agricultural Sciences, Nanchang, China
| | | | | | - Chengcai Chu
- State Key Laboratory of Plant Genomics, Institute of Genetics and Developmental Biology, The Innovative Academy for Seed Design, Chinese Academy of Sciences, Beijing, China
| | - Aiqing You
- Hubei Academy of Agricultural Sciences, Wuhan, China
| | - Yu Wei
- Guangxi Academy of Agricultural Sciences, Nanning, China
| | - Susong Zhu
- Guizhou Academy of Agricultural Sciences, Guiyang, China
| | - Qiongyao Gu
- Yunnan Academy of Agricultural Sciences, Kunming, China
| | | | - Shigui Li
- Sichuan Agricultural University, Chengdu, China
| | - Guifu Liu
- State Key Laboratory of Plant Genomics, Institute of Genetics and Developmental Biology, The Innovative Academy for Seed Design, Chinese Academy of Sciences, Beijing, China
| | - Changhua Liu
- Heilongjiang Academy of Agricultural Sciences, Harbin, China
| | - Chaopu Zhang
- National Key Laboratory of Crop Genetic Improvement, Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan 430070, China
| | - Jinghua Xiao
- National Key Laboratory of Crop Genetic Improvement, Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan 430070, China
| | - Lijun Luo
- Shanghai Agrobiological Gene Center, Shanghai, China.
| | - Zhikang Li
- Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, China.
| | - Qifa Zhang
- National Key Laboratory of Crop Genetic Improvement, Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan 430070, China.
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61
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Zhao S, Wang H, Chen H, Lin L, Liu Q, Wei C. Screening and identification of rice non-floury endosperm mutants with different starch components. J Cereal Sci 2022. [DOI: 10.1016/j.jcs.2021.103397] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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62
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Heat-Moisture Treatment Further Reduces In Vitro Digestibility and Enhances Resistant Starch Content of a High-Resistant Starch and Low-Glutelin Rice. Foods 2021; 10:foods10112562. [PMID: 34828843 PMCID: PMC8622339 DOI: 10.3390/foods10112562] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2021] [Revised: 10/17/2021] [Accepted: 10/21/2021] [Indexed: 12/16/2022] Open
Abstract
A novel rice germplasm sbeIIb/Lgc1 producing grains rich in resistant starch (RS) but low in glutelin has been developed through CRISPR/Cas9-mediated targeted mutagenesis for its potential benefits to patients with diabetes and kidney diseases. In this study, a hydrothermal approach known as heat-moisture treatment (HMT) was identified as a simple and effective method in reinforcing the nutritional benefits of sbeIIb/Lgc1 rice. As a result of HMT treatment at 120 °C for 2 h, significant reductions in in vitro digestibility and enhancements in RS content were observed in sbeIIb/Lgc1 rice flour when the rice flour mass fraction was 80% and 90%. The low-glutelin feature of sbeIIb/Lgc1 rice was not compromised by HMT. The potential impacts of HMT on a range of physicochemical properties of sbeIIb/Lgc1 rice flour have also been analyzed. HMT resulted in a darker color of rice flour, alteration in the semi-crystalline structure, an increase in gelatinization temperatures, and reductions in the pasting viscosities as the moisture content increased. This study provides vital data for the food industry to facilitate the application of this dual-functional rice flour as a health food ingredient.
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63
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Huang L, Tan H, Zhang C, Li Q, Liu Q. Starch biosynthesis in cereal endosperms: An updated review over the last decade. PLANT COMMUNICATIONS 2021; 2:100237. [PMID: 34746765 PMCID: PMC8554040 DOI: 10.1016/j.xplc.2021.100237] [Citation(s) in RCA: 89] [Impact Index Per Article: 29.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/05/2021] [Revised: 08/08/2021] [Accepted: 08/27/2021] [Indexed: 05/13/2023]
Abstract
Starch is a vital energy source for living organisms and is a key raw material and additive in the food and non-food industries. Starch has received continuous attention in multiple research fields. The endosperm of cereals (e.g., rice, corn, wheat, and barley) is the most important site for the synthesis of storage starch. Around 2010, several excellent reviews summarized key progress in various fields of starch research, serving as important references for subsequent research. In the past 10 years, many achievements have been made in the study of starch synthesis and regulation in cereals. The present review provides an update on research progress in starch synthesis of cereal endosperms over the past decade, focusing on new enzymes and non-enzymatic proteins involved in starch synthesis, regulatory networks of starch synthesis, and the use of elite alleles of starch synthesis-related genes in cereal breeding programs. We also provide perspectives on future research directions that will further our understanding of cereal starch biosynthesis and regulation to support the rational design of ideal quality grain.
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Affiliation(s)
- Lichun Huang
- Jiangsu Key Laboratory of Crop Genomics and Molecular Breeding, State Key Laboratory of Hybrid Rice, Key Laboratory of Plant Functional Genomics of the Ministry of Education, College of Agriculture, Yangzhou University, Yangzhou 225009, China
- Co-Innovation Center for Modern Production Technology of Grain Crops of Jiangsu Province, Key Laboratory of Crop Genetics and Physiology of Jiangsu Province, Yangzhou University, Yangzhou 225009, China
| | - Hongyan Tan
- Jiangsu Key Laboratory of Crop Genomics and Molecular Breeding, State Key Laboratory of Hybrid Rice, Key Laboratory of Plant Functional Genomics of the Ministry of Education, College of Agriculture, Yangzhou University, Yangzhou 225009, China
| | - Changquan Zhang
- Jiangsu Key Laboratory of Crop Genomics and Molecular Breeding, State Key Laboratory of Hybrid Rice, Key Laboratory of Plant Functional Genomics of the Ministry of Education, College of Agriculture, Yangzhou University, Yangzhou 225009, China
- Co-Innovation Center for Modern Production Technology of Grain Crops of Jiangsu Province, Key Laboratory of Crop Genetics and Physiology of Jiangsu Province, Yangzhou University, Yangzhou 225009, China
| | - Qianfeng Li
- Jiangsu Key Laboratory of Crop Genomics and Molecular Breeding, State Key Laboratory of Hybrid Rice, Key Laboratory of Plant Functional Genomics of the Ministry of Education, College of Agriculture, Yangzhou University, Yangzhou 225009, China
- Co-Innovation Center for Modern Production Technology of Grain Crops of Jiangsu Province, Key Laboratory of Crop Genetics and Physiology of Jiangsu Province, Yangzhou University, Yangzhou 225009, China
| | - Qiaoquan Liu
- Jiangsu Key Laboratory of Crop Genomics and Molecular Breeding, State Key Laboratory of Hybrid Rice, Key Laboratory of Plant Functional Genomics of the Ministry of Education, College of Agriculture, Yangzhou University, Yangzhou 225009, China
- Co-Innovation Center for Modern Production Technology of Grain Crops of Jiangsu Province, Key Laboratory of Crop Genetics and Physiology of Jiangsu Province, Yangzhou University, Yangzhou 225009, China
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Li R, Jiang M, Zheng W, Zhang H. GUN4-mediated tetrapyrrole metabolites regulates starch biosynthesis during early seed development in rice. J Cereal Sci 2021. [DOI: 10.1016/j.jcs.2021.103317] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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Yu B, Xiang D, Mahfuz H, Patterson N, Bing D. Understanding Starch Metabolism in Pea Seeds towards Tailoring Functionality for Value-Added Utilization. Int J Mol Sci 2021; 22:8972. [PMID: 34445676 PMCID: PMC8396644 DOI: 10.3390/ijms22168972] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2021] [Revised: 08/16/2021] [Accepted: 08/16/2021] [Indexed: 11/17/2022] Open
Abstract
Starch is the most abundant storage carbohydrate and a major component in pea seeds, accounting for about 50% of dry seed weight. As a by-product of pea protein processing, current uses for pea starch are limited to low-value, commodity markets. The globally growing demand for pea protein poses a great challenge for the pea fractionation industry to develop new markets for starch valorization. However, there exist gaps in our understanding of the genetic mechanism underlying starch metabolism, and its relationship with physicochemical and functional properties, which is a prerequisite for targeted tailoring functionality and innovative applications of starch. This review outlines the understanding of starch metabolism with a particular focus on peas and highlights the knowledge of pea starch granule structure and its relationship with functional properties, and industrial applications. Using the currently available pea genetics and genomics knowledge and breakthroughs in omics technologies, we discuss the perspectives and possible avenues to advance our understanding of starch metabolism in peas at an unprecedented level, to ultimately enable the molecular design of multi-functional native pea starch and to create value-added utilization.
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Affiliation(s)
- Bianyun Yu
- Aquatic and Crop Resource Development Research Centre, National Research Council Canada, 110 Gymnasium Place, Saskatoon, SK S7N 0W9, Canada; (D.X.); (H.M.); (N.P.)
| | - Daoquan Xiang
- Aquatic and Crop Resource Development Research Centre, National Research Council Canada, 110 Gymnasium Place, Saskatoon, SK S7N 0W9, Canada; (D.X.); (H.M.); (N.P.)
| | - Humaira Mahfuz
- Aquatic and Crop Resource Development Research Centre, National Research Council Canada, 110 Gymnasium Place, Saskatoon, SK S7N 0W9, Canada; (D.X.); (H.M.); (N.P.)
- Department of Biology, Faculty of Science, University of Ottawa, 30 Marie Curie, Ottawa, ON K1N 6N5, Canada
| | - Nii Patterson
- Aquatic and Crop Resource Development Research Centre, National Research Council Canada, 110 Gymnasium Place, Saskatoon, SK S7N 0W9, Canada; (D.X.); (H.M.); (N.P.)
| | - Dengjin Bing
- Lacombe Research and Development Centre, Agriculture and Agri-Food Canada, 6000 C and E Trail, Lacombe, AB T4L 1W1, Canada;
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Huang L, Gu Z, Chen Z, Yu J, Chu R, Tan H, Zhao D, Fan X, Zhang C, Li Q, Liu Q. Improving rice eating and cooking quality by coordinated expression of the major starch synthesis-related genes, SSII and Wx, in endosperm. PLANT MOLECULAR BIOLOGY 2021; 106:419-432. [PMID: 34129189 DOI: 10.1007/s11103-021-01162-8] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/05/2021] [Accepted: 06/07/2021] [Indexed: 05/18/2023]
Abstract
Coordinated regulation of amylose and amylopectin synthesis via manipulation of SSII-2, SSII-3 and Wx expression in endosperm can improve rice eating and cooking quality. With increasing rice consumption worldwide, many researchers are working to increase the yield and improve grain quality, especially eating and cooking quality (ECQ). The rice ECQ is mainly controlled by the expression of starch synthesis-related genes (SSRGs) in endosperm. Although the Wx and SSII-3/SSIIa/ALK genes, two major SSRGs, have been manipulated to improve rice ECQ via various breeding approaches, new methods to further improve ECQ are desired. In our previous study, we enhanced rice ECQ by knocking down SSII-2 expression in the japonica Nipponbare cultivar (carrying the Wxb allele) via RNA interference. Herein, the SSII-2 RNAi was introduced into two Nipponbare-derived near-isogenic lines (NILs), Nip(Wxa) and Nip(wx), carrying Wxa and wx alleles respond for high and no amylose levels, respectively. Analysis of physicochemical properties revealed that the improved grain quality of SSII-2 RNAi transgenic lines was achieved by coordinated downregulating the expression of SSII-2, SSII-3 and Wx. To further confirm this conclusion, we generated ssii-2, ssii-3 and ssii-2ssii-3 mutants via CRISPR/Cas9 technique. The amylopectin structure of the resulting ssii-2sii-3 mutants was similar to that in SSII-2 RNAi transgenic lines, and the absence of SSII-2 decreased the amylose content, gelatinisation temperature and rapid visco-analyser profile, indicating essential roles for SSII-2 in the regulation of amylopectin biosynthesis and amylose content in rice endosperm. The effect of SSII-2 was seen only when the activity of SSII-3 was very low or lacking. Our study provides novel approaches and valuable germplasm resources for improving ECQ via plant breeding.
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Affiliation(s)
- Lichun Huang
- Jiangsu Key Laboratory of Crop Genomics and Molecular Breeding, State Key Laboratory of Hybrid Rice, Key Laboratory of Plant Functional Genomics of the Ministry of Education, College of Agriculture, Yangzhou University, Yangzhou, 225009, China
- Key Laboratory of Crop Genetics and Physiology of Jiangsu Province, Co-Innovation Center for Modern Production Technology of Grain Crops of Jiangsu Province, Yangzhou University, Yangzhou, 225009, China
| | - Zhengwen Gu
- Jiangsu Key Laboratory of Crop Genomics and Molecular Breeding, State Key Laboratory of Hybrid Rice, Key Laboratory of Plant Functional Genomics of the Ministry of Education, College of Agriculture, Yangzhou University, Yangzhou, 225009, China
| | - Zhuanzhuan Chen
- Jiangsu Key Laboratory of Crop Genomics and Molecular Breeding, State Key Laboratory of Hybrid Rice, Key Laboratory of Plant Functional Genomics of the Ministry of Education, College of Agriculture, Yangzhou University, Yangzhou, 225009, China
| | - Jiawen Yu
- Jiangsu Key Laboratory of Crop Genomics and Molecular Breeding, State Key Laboratory of Hybrid Rice, Key Laboratory of Plant Functional Genomics of the Ministry of Education, College of Agriculture, Yangzhou University, Yangzhou, 225009, China
| | - Rui Chu
- Jiangsu Key Laboratory of Crop Genomics and Molecular Breeding, State Key Laboratory of Hybrid Rice, Key Laboratory of Plant Functional Genomics of the Ministry of Education, College of Agriculture, Yangzhou University, Yangzhou, 225009, China
| | - Hongyan Tan
- Jiangsu Key Laboratory of Crop Genomics and Molecular Breeding, State Key Laboratory of Hybrid Rice, Key Laboratory of Plant Functional Genomics of the Ministry of Education, College of Agriculture, Yangzhou University, Yangzhou, 225009, China
| | - Dongsheng Zhao
- Jiangsu Key Laboratory of Crop Genomics and Molecular Breeding, State Key Laboratory of Hybrid Rice, Key Laboratory of Plant Functional Genomics of the Ministry of Education, College of Agriculture, Yangzhou University, Yangzhou, 225009, China
- Key Laboratory of Crop Genetics and Physiology of Jiangsu Province, Co-Innovation Center for Modern Production Technology of Grain Crops of Jiangsu Province, Yangzhou University, Yangzhou, 225009, China
| | - Xiaolei Fan
- Jiangsu Key Laboratory of Crop Genomics and Molecular Breeding, State Key Laboratory of Hybrid Rice, Key Laboratory of Plant Functional Genomics of the Ministry of Education, College of Agriculture, Yangzhou University, Yangzhou, 225009, China
- Key Laboratory of Crop Genetics and Physiology of Jiangsu Province, Co-Innovation Center for Modern Production Technology of Grain Crops of Jiangsu Province, Yangzhou University, Yangzhou, 225009, China
| | - Changquan Zhang
- Jiangsu Key Laboratory of Crop Genomics and Molecular Breeding, State Key Laboratory of Hybrid Rice, Key Laboratory of Plant Functional Genomics of the Ministry of Education, College of Agriculture, Yangzhou University, Yangzhou, 225009, China
- Key Laboratory of Crop Genetics and Physiology of Jiangsu Province, Co-Innovation Center for Modern Production Technology of Grain Crops of Jiangsu Province, Yangzhou University, Yangzhou, 225009, China
| | - Qianfeng Li
- Jiangsu Key Laboratory of Crop Genomics and Molecular Breeding, State Key Laboratory of Hybrid Rice, Key Laboratory of Plant Functional Genomics of the Ministry of Education, College of Agriculture, Yangzhou University, Yangzhou, 225009, China.
- Key Laboratory of Crop Genetics and Physiology of Jiangsu Province, Co-Innovation Center for Modern Production Technology of Grain Crops of Jiangsu Province, Yangzhou University, Yangzhou, 225009, China.
| | - Qiaoquan Liu
- Jiangsu Key Laboratory of Crop Genomics and Molecular Breeding, State Key Laboratory of Hybrid Rice, Key Laboratory of Plant Functional Genomics of the Ministry of Education, College of Agriculture, Yangzhou University, Yangzhou, 225009, China.
- Key Laboratory of Crop Genetics and Physiology of Jiangsu Province, Co-Innovation Center for Modern Production Technology of Grain Crops of Jiangsu Province, Yangzhou University, Yangzhou, 225009, China.
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Xia C, Zhong L, Wang J, Zhang L, Chen X, Ji H, Ma S, Dong W, Ye X, Huang Y, Li Z, Cui Z. Structural and digestion properties of potato starch modified using an efficient starch branching enzyme AqGBE. Int J Biol Macromol 2021; 184:551-557. [PMID: 34171255 DOI: 10.1016/j.ijbiomac.2021.06.135] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2021] [Revised: 05/24/2021] [Accepted: 06/20/2021] [Indexed: 11/25/2022]
Abstract
Modified potato starch with slower digestion may aid the development of new starch derivatives with improved nutritional values, and strategies to increase nutritional fractions such as resistant starch (RS) are desired. In this study, a correspondence between starch structure and enzymatic resistance was provided based on the efficient branching enzyme AqGBE, and modified starches with different amylose content (Control, 100%; PS1, 90%; PS2, 72%; PS3, 32%; PS4, 18%) were prepared. Through SEM observation, NMR and X-ray diffraction analyses, we identified that an increased proportion of α-1,6-linked branches in potato starch changes its state of granule into large pieces with crystallinity. Molecular weight and chain-length distribution analysis showed a decrease of molecular weight (from 1.1 × 106 to 1.1 × 105 g/mol) without an obvious change of chain-length distribution in PS1, while PS2-4 exhibited an increased proportion of DP 6-12 with a stable molecular weight distribution, indicating a distinct model of structural modification by AqGBE. The enhancement of peak viscosity was related to increased hydrophobic interactions and pieces state of PS1, while the contents of SDS and RS in PS1 increased by 37.7 and 49.4%, respectively. Our result provides an alternative way to increase the RS content of potato starch by branching modification.
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Affiliation(s)
- Chengyao Xia
- Key Laboratory of Agricultural Environmental Microbiology, Ministry of Agriculture, College of Life Science, Nanjing Agricultural University, Nanjing 210095, PR China
| | - Lingli Zhong
- Key Laboratory of Agricultural Environmental Microbiology, Ministry of Agriculture, College of Life Science, Nanjing Agricultural University, Nanjing 210095, PR China
| | - Juying Wang
- Key Laboratory of Agricultural Environmental Microbiology, Ministry of Agriculture, College of Life Science, Nanjing Agricultural University, Nanjing 210095, PR China
| | - Lei Zhang
- Key Laboratory of Agricultural Environmental Microbiology, Ministry of Agriculture, College of Life Science, Nanjing Agricultural University, Nanjing 210095, PR China
| | - Xiaopei Chen
- Key Laboratory of Agricultural Environmental Microbiology, Ministry of Agriculture, College of Life Science, Nanjing Agricultural University, Nanjing 210095, PR China
| | - Hangyan Ji
- School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, China
| | - Shiyun Ma
- Key Laboratory of Agricultural Environmental Microbiology, Ministry of Agriculture, College of Life Science, Nanjing Agricultural University, Nanjing 210095, PR China
| | - Weiliang Dong
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing 211800, PR China
| | - Xianfeng Ye
- Key Laboratory of Agricultural Environmental Microbiology, Ministry of Agriculture, College of Life Science, Nanjing Agricultural University, Nanjing 210095, PR China
| | - Yan Huang
- Key Laboratory of Agricultural Environmental Microbiology, Ministry of Agriculture, College of Life Science, Nanjing Agricultural University, Nanjing 210095, PR China
| | - Zhoukun Li
- Key Laboratory of Agricultural Environmental Microbiology, Ministry of Agriculture, College of Life Science, Nanjing Agricultural University, Nanjing 210095, PR China.
| | - Zhongli Cui
- Key Laboratory of Agricultural Environmental Microbiology, Ministry of Agriculture, College of Life Science, Nanjing Agricultural University, Nanjing 210095, PR China
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Genome-Wide Identification and Genetic Variations of the Starch Synthase Gene Family in Rice. PLANTS 2021; 10:plants10061154. [PMID: 34204124 PMCID: PMC8227427 DOI: 10.3390/plants10061154] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/17/2021] [Revised: 06/04/2021] [Accepted: 06/04/2021] [Indexed: 11/17/2022]
Abstract
Starch is a major ingredient in rice, and the amylose content of starch significantly impacts rice quality. OsSS (starch synthase) is a gene family related to the synthesis of amylose and amylopectin, and 10 members have been reported. In the present study, a synteny analysis of a novel family member belonging to the OsSSIV subfamily that contained a starch synthase catalytic domain showed that three segmental duplications and multiple duplications were identified in rice and other species. Expression data showed that the OsSS gene family is involved in diverse expression patterns. The prediction of miRNA targets suggested that OsSS are possibly widely regulated by miRNA functions, with miR156s targeted to OsSSII-3, especially. Haplotype analysis exhibited the relationship between amylose content and diverse genotypes. These results give new insight and a theoretical basis for the improved amylose content and eating quality of rice.
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69
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Niu B, Zhang Z, Zhang J, Zhou Y, Chen C. The rice LEC1-like transcription factor OsNF-YB9 interacts with SPK, an endosperm-specific sucrose synthase protein kinase, and functions in seed development. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2021; 106:1233-1246. [PMID: 33721364 DOI: 10.1111/tpj.15230] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/29/2020] [Revised: 02/23/2021] [Accepted: 03/10/2021] [Indexed: 05/06/2023]
Abstract
LEAFY COTYLEDON1 (LEC1), a NUCLEAR FACTOR-Y (NF-Y) family member, plays a critical role in embryogenesis and seed development in Arabidopsis. Previous studies have shown that rice OsNF-YB9 and OsNF-YB7 are homologous to Arabidopsis LEC1. However, the functions of LEC1-like genes in rice remain unclear. Here we report that OsNF-YB9 and OsNF-YB7 display sub-functionalization in rice. We demonstrate that OsNF-YB7 is expressed mainly in the embryo, whereas OsNF-YB9 is preferentially expressed in the developing endosperm. Heterologous expression of either OsNF-YB9 or OsNF-YB7 in Arabidopsis lec1-1 was able to complement the lec1-1 defects. We failed to generate osnf-yb7 homozygous mutants due to lethality caused by OsNF-YB7 defects. Loss of OsNF-YB9 function caused abnormal seed development: seeds were longer, narrower and thinner and exhibited a higher chalkiness ratio. Furthermore, the expression of genes related to starch synthesis was deregulated in osnf-yb9. OsNF-YB9 could interact with SPK, a sucrose synthase protein kinase that is predominantly expressed in rice endosperm. Knockout of SPK resulted in chalky seeds similar to those observed in the osnf-yb9 mutants. Ectopic expression of OsNF-YB9 in both rice and Arabidopsis resulted in unhealthy plants with small seeds. Taken together, these results suggest a critical role for OsNF-YB9 in rice seed development.
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Affiliation(s)
- Baixiao Niu
- Jiangsu Key Laboratory of Crop Genetics and Physiology, Key Laboratory of Plant Functional Genomics of the Ministry of Education, Jiangsu Key Laboratory of Crop Genomics and Molecular Breeding, Jiangsu Co-Innovation Center for Modern Production Technology of Grain Crops, Agricultural College of Yangzhou University, Yangzhou, China
| | - Zhenyu Zhang
- Jiangsu Key Laboratory of Crop Genetics and Physiology, Key Laboratory of Plant Functional Genomics of the Ministry of Education, Jiangsu Key Laboratory of Crop Genomics and Molecular Breeding, Jiangsu Co-Innovation Center for Modern Production Technology of Grain Crops, Agricultural College of Yangzhou University, Yangzhou, China
| | - Juan Zhang
- Jiangsu Key Laboratory of Crop Genetics and Physiology, Key Laboratory of Plant Functional Genomics of the Ministry of Education, Jiangsu Key Laboratory of Crop Genomics and Molecular Breeding, Jiangsu Co-Innovation Center for Modern Production Technology of Grain Crops, Agricultural College of Yangzhou University, Yangzhou, China
| | - Yong Zhou
- Jiangsu Key Laboratory of Crop Genetics and Physiology, Key Laboratory of Plant Functional Genomics of the Ministry of Education, Jiangsu Key Laboratory of Crop Genomics and Molecular Breeding, Jiangsu Co-Innovation Center for Modern Production Technology of Grain Crops, Agricultural College of Yangzhou University, Yangzhou, China
| | - Chen Chen
- Jiangsu Key Laboratory of Crop Genetics and Physiology, Key Laboratory of Plant Functional Genomics of the Ministry of Education, Jiangsu Key Laboratory of Crop Genomics and Molecular Breeding, Jiangsu Co-Innovation Center for Modern Production Technology of Grain Crops, Agricultural College of Yangzhou University, Yangzhou, China
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Kasote D, Sreenivasulu N, Acuin C, Regina A. Enhancing health benefits of milled rice: current status and future perspectives. Crit Rev Food Sci Nutr 2021; 62:8099-8119. [PMID: 34036858 DOI: 10.1080/10408398.2021.1925629] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Milled rice is an essential part of the regular diet for approximately half of the world's population. Its remarkable commercial value and consumer acceptance are mostly due to its promising cooking qualities, appealing sensory properties, and longer shelf life. However, the significant loss of the nutrient-rich bran layer during milling makes it less nutritious than the whole grain. Thus, enhancing the nutritive value of milled rice is vital in improving the health and wellbeing of rice consumers, particularly for those residing in the low-economic zones where rice is the primary source of calories and nutrition. This article provides a critical review on multiple frontiers of recent interventions, such as (1) infusing the genetic diversity to enrich amylose and resistant starch to reduce glycaemic index, (2) enhancing the minerals and vitamins through complementary fortification and biofortification as short and long-term interventions, and (3) developing transgenic solutions to improve the nutrient levels of milled rice. Additionally, the review highlights the benefits of functional ingredients of milled rice to human health and the potential of enhancing them in rice to address the triple burden of malnutrition. The potential merit of milled rice concerning food safety is also reviewed in this article.
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Affiliation(s)
- Deepak Kasote
- Centre of Excellence in Rice Value Addition (CERVA), International Rice Research Institute (IRRI), South Asia Regional Centre, Varanasi, Uttar Pradesh (U.P.), India
| | - Nese Sreenivasulu
- Rice Breeding and Innovation Platform, International Rice Research Institute (IRRI), Los Baños, Laguna, Philippines
| | - Cecilia Acuin
- Rice Breeding and Innovation Platform, International Rice Research Institute (IRRI), Los Baños, Laguna, Philippines
| | - Ahmed Regina
- Centre of Excellence in Rice Value Addition (CERVA), International Rice Research Institute (IRRI), South Asia Regional Centre, Varanasi, Uttar Pradesh (U.P.), India
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71
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Selvaraj R, Singh AK, Singh VK, Abbai R, Habde SV, Singh UM, Kumar A. Superior haplotypes towards development of low glycemic index rice with preferred grain and cooking quality. Sci Rep 2021; 11:10082. [PMID: 33980871 PMCID: PMC8115083 DOI: 10.1038/s41598-021-87964-8] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2020] [Accepted: 03/19/2021] [Indexed: 02/03/2023] Open
Abstract
Increasing trends in the occurrence of diabetes underline the need to develop low glycemic index (GI) rice with preferred grain quality. In the current study, a diverse set of 3 K sub-panel of rice consisting of 150 accessions was evaluated for resistant starch and predicted glycemic index, including nine other quality traits under transplanted situation. Significant variations were noticed among the accessions for the traits evaluated. Trait associations had shown that amylose content possess significant positive and negative association with resistant starch and predicted glycemic index. Genome-wide association studies with 500 K SNPs based on MLM model resulted in a total of 41 marker-trait associations (MTAs), which were further confirmed and validated with mrMLM multi-locus model. We have also determined the allelic effect of identified MTAs for 11 targeted traits and found favorable SNPs for 8 traits. A total of 11 genes were selected for haplo-pheno analysis to identify the superior haplotypes for the target traits where haplotypes ranges from 2 (Os10g0469000-GC) to 15 (Os06g18720-AC). Superior haplotypes for RS and PGI, the candidate gene Os06g11100 (H4-3.28% for high RS) and Os08g12590 (H13-62.52 as intermediate PGI). The identified superior donors possessing superior haplotype combinations may be utilized in Haplotype-based breeding to developing next-generation tailor-made high quality healthier rice varieties suiting consumer preference and market demand.
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Affiliation(s)
- Ramchander Selvaraj
- IRRI South Asia Hub (IRRI-SAH), ICRISAT Campus, Patancheru, Hyderabad, India
| | - Arun Kumar Singh
- IRRI South Asia Hub (IRRI-SAH), ICRISAT Campus, Patancheru, Hyderabad, India
| | - Vikas Kumar Singh
- IRRI South Asia Hub (IRRI-SAH), ICRISAT Campus, Patancheru, Hyderabad, India
| | - Ragavendran Abbai
- Leibniz Institute of Plant Genetics and Crop Plant Research (IPK), Gatersleben, Germany
| | - Sonali Vijay Habde
- South-Asia Regional Centre (SARC), International Rice Research Institute (IRRI), Varanasi, India
| | - Uma Maheshwar Singh
- South-Asia Regional Centre (SARC), International Rice Research Institute (IRRI), Varanasi, India
| | - Arvind Kumar
- IRRI South Asia Hub (IRRI-SAH), ICRISAT Campus, Patancheru, Hyderabad, India.
- South-Asia Regional Centre (SARC), International Rice Research Institute (IRRI), Varanasi, India.
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Adegoke TV, Wang Y, Chen L, Wang H, Liu W, Liu X, Cheng YC, Tong X, Ying J, Zhang J. Posttranslational Modification of Waxy to Genetically Improve Starch Quality in Rice Grain. Int J Mol Sci 2021; 22:4845. [PMID: 34063649 PMCID: PMC8124582 DOI: 10.3390/ijms22094845] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2021] [Revised: 04/26/2021] [Accepted: 04/29/2021] [Indexed: 01/07/2023] Open
Abstract
The waxy (Wx) gene, encoding the granule-bound starch synthase (GBSS), is responsible for amylose biosynthesis and plays a crucial role in defining eating and cooking quality. The waxy locus controls both the non-waxy and waxy rice phenotypes. Rice starch can be altered into various forms by either reducing or increasing the amylose content, depending on consumer preference and region. Low-amylose rice is preferred by consumers because of its softness and sticky appearance. A better way of improving crops other than downregulation and overexpression of a gene or genes may be achieved through the posttranslational modification of sites or regulatory enzymes that regulate them because of their significance. The impact of posttranslational GBSSI modifications on extra-long unit chains (ELCs) remains largely unknown. Numerous studies have been reported on different crops, such as wheat, maize, and barley, but the rice starch granule proteome remains largely unknown. There is a need to improve the yield of low-amylose rice by employing posttranslational modification of Wx, since the market demand is increasing every day in order to meet the market demand for low-amylose rice in the regional area that prefers low-amylose rice, particularly in China. In this review, we have conducted an in-depth review of waxy rice, starch properties, starch biosynthesis, and posttranslational modification of waxy protein to genetically improve starch quality in rice grains.
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Affiliation(s)
- Tosin Victor Adegoke
- State Key Lab of Rice Biology, China National Rice Research Institute, Hangzhou 311400, China; (T.V.A.); (Y.W.); (L.C.); (H.W.); (W.L.); (X.L.); (Y.-C.C.); (X.T.); (J.Y.)
- Graduate School of Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Yifeng Wang
- State Key Lab of Rice Biology, China National Rice Research Institute, Hangzhou 311400, China; (T.V.A.); (Y.W.); (L.C.); (H.W.); (W.L.); (X.L.); (Y.-C.C.); (X.T.); (J.Y.)
| | - Lijuan Chen
- State Key Lab of Rice Biology, China National Rice Research Institute, Hangzhou 311400, China; (T.V.A.); (Y.W.); (L.C.); (H.W.); (W.L.); (X.L.); (Y.-C.C.); (X.T.); (J.Y.)
| | - Huimei Wang
- State Key Lab of Rice Biology, China National Rice Research Institute, Hangzhou 311400, China; (T.V.A.); (Y.W.); (L.C.); (H.W.); (W.L.); (X.L.); (Y.-C.C.); (X.T.); (J.Y.)
| | - Wanning Liu
- State Key Lab of Rice Biology, China National Rice Research Institute, Hangzhou 311400, China; (T.V.A.); (Y.W.); (L.C.); (H.W.); (W.L.); (X.L.); (Y.-C.C.); (X.T.); (J.Y.)
| | - Xingyong Liu
- State Key Lab of Rice Biology, China National Rice Research Institute, Hangzhou 311400, China; (T.V.A.); (Y.W.); (L.C.); (H.W.); (W.L.); (X.L.); (Y.-C.C.); (X.T.); (J.Y.)
| | - Yi-Chen Cheng
- State Key Lab of Rice Biology, China National Rice Research Institute, Hangzhou 311400, China; (T.V.A.); (Y.W.); (L.C.); (H.W.); (W.L.); (X.L.); (Y.-C.C.); (X.T.); (J.Y.)
| | - Xiaohong Tong
- State Key Lab of Rice Biology, China National Rice Research Institute, Hangzhou 311400, China; (T.V.A.); (Y.W.); (L.C.); (H.W.); (W.L.); (X.L.); (Y.-C.C.); (X.T.); (J.Y.)
| | - Jiezheng Ying
- State Key Lab of Rice Biology, China National Rice Research Institute, Hangzhou 311400, China; (T.V.A.); (Y.W.); (L.C.); (H.W.); (W.L.); (X.L.); (Y.-C.C.); (X.T.); (J.Y.)
| | - Jian Zhang
- State Key Lab of Rice Biology, China National Rice Research Institute, Hangzhou 311400, China; (T.V.A.); (Y.W.); (L.C.); (H.W.); (W.L.); (X.L.); (Y.-C.C.); (X.T.); (J.Y.)
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Lal MK, Singh B, Sharma S, Singh MP, Kumar A. Glycemic index of starchy crops and factors affecting its digestibility: A review. Trends Food Sci Technol 2021. [DOI: 10.1016/j.tifs.2021.02.067] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Tian Z, Wang JW, Li J, Han B. Designing future crops: challenges and strategies for sustainable agriculture. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2021; 105:1165-1178. [PMID: 33258137 DOI: 10.1111/tpj.15107] [Citation(s) in RCA: 67] [Impact Index Per Article: 22.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/07/2020] [Revised: 11/22/2020] [Accepted: 11/26/2020] [Indexed: 05/26/2023]
Abstract
Crop production is facing unprecedented challenges. Despite the fact that the food supply has significantly increased over the past half-century, ~8.9 and 14.3% people are still suffering from hunger and malnutrition, respectively. Agricultural environments are continuously threatened by a booming world population, a shortage of arable land, and rapid changes in climate. To ensure food and ecosystem security, there is a need to design future crops for sustainable agriculture development by maximizing net production and minimalizing undesirable effects on the environment. The future crops design projects, recently launched by the National Natural Science Foundation of China and Chinese Academy of Sciences (CAS), aim to develop a roadmap for rapid design of customized future crops using cutting-edge technologies in the Breeding 4.0 era. In this perspective, we first introduce the background and missions of these projects. We then outline strategies to design future crops, such as improvement of current well-cultivated crops, de novo domestication of wild species and redomestication of current cultivated crops. We further discuss how these ambitious goals can be achieved by the recent development of new integrative omics tools, advanced genome-editing tools and synthetic biology approaches. Finally, we summarize related opportunities and challenges in these projects.
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Affiliation(s)
- Zhixi Tian
- State Key Laboratory of Plant Cell and Chromosome Engineering, Innovation Academy for Seed Design, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, 100101, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Jia-Wei Wang
- National Key Laboratory of Plant Molecular Genetics, CAS Center for Excellence in Molecular Plant Sciences, Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai, 200032, China
- ShanghaiTech University, Shanghai, 200031, China
| | - Jiayang Li
- University of Chinese Academy of Sciences, Beijing, 100049, China
- State Key Laboratory of Plant Genomics, and National Center for Plant Gene Research (Beijing), Innovation Academy for Seed Design, Institute of Genetics and Developmental Biology Chinese Academy of Sciences, Beijing, 100101, China
| | - Bin Han
- National Key Laboratory of Plant Molecular Genetics, CAS Center for Excellence in Molecular Plant Sciences, Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai, 200032, China
- ShanghaiTech University, Shanghai, 200031, China
- National Center for Gene Research, Shanghai, 200233, China
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Miura S, Koyama N, Crofts N, Hosaka Y, Abe M, Fujita N. Generation and Starch Characterization of Non-Transgenic BEI and BEIIb Double Mutant Rice (Oryza sativa) with Ultra-High Level of Resistant Starch. RICE (NEW YORK, N.Y.) 2021; 14:3. [PMID: 33409744 PMCID: PMC7788159 DOI: 10.1186/s12284-020-00441-0] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/12/2020] [Accepted: 11/23/2020] [Indexed: 05/21/2023]
Abstract
BACKGROUND Cereals high in resistant starch (RS) are gaining popularity, as their intake is thought to help manage diabetes and prediabetes. Number of patients suffering from diabetes is also increasing in Asian countries where people consume rice as a staple food, hence generation of practically growable high RS rice line has been anticipated. It is known that suppression of starch branching enzyme (BE) IIb increases RS content in cereals. To further increase RS content and for more practical use, we generated a non-transgenic be1 be2b double mutant rice (Oryza sativa) line, which completely lacked both proteins, by crossing a be1 mutant with a be2b mutant. RESULTS The be1 be2b mutant showed a decrease in intermediate amylopectin chains and an increase in long amylopectin chains compared with be2b. The amylose content of be1 be2b mutant (51.7%) was the highest among all pre-existing non-transgenic rice lines. To understand the effects of chewing cooked rice and cooking rice flour on RS content, RS content of mashed and un-mashed cooked rice as well as raw and gelatinized rice flour were measured using be1 be2b and its parent mutant lines. The RS contents of mashed cooked rice and raw rice flour of be1 be2b mutant (28.4% and 35.1%, respectively) were 3-fold higher than those of be2b mutant. Gel-filtration analyses of starch treated with digestive enzymes showed that the RS in be1 be2b mutant was composed of the degradation products of amylose and long amylopectin chains. Seed weight of be1 be2b mutant was approximately 60% of the wild type and rather heavier than that of be2b mutant. CONCLUSIONS The endosperm starch in be1 be2b double mutant rice were enriched with long amylopectin chains. This led to a great increase in RS content in cooked rice grains and rice flour in be1 be2b compared with be2b single mutant. be1 be2b generated in this study must serve as a good material for an ultra-high RS rice cultivar.
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Affiliation(s)
- Satoko Miura
- Department of Biological Production, Akita Prefectural University, Akita, 010-0195 Japan
| | - Nana Koyama
- Department of Biological Production, Akita Prefectural University, Akita, 010-0195 Japan
| | - Naoko Crofts
- Department of Biological Production, Akita Prefectural University, Akita, 010-0195 Japan
| | - Yuko Hosaka
- Department of Biological Production, Akita Prefectural University, Akita, 010-0195 Japan
| | - Misato Abe
- Department of Biological Production, Akita Prefectural University, Akita, 010-0195 Japan
| | - Naoko Fujita
- Department of Biological Production, Akita Prefectural University, Akita, 010-0195 Japan
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Pan Y, Chen L, Zhao Y, Guo H, Li J, Rashid MAR, Lu C, Zhou W, Yang X, Liang Y, Wu H, Qing D, Gao L, Dai G, Li D, Deng G. Natural Variation in OsMKK3 Contributes to Grain Size and Chalkiness in Rice. FRONTIERS IN PLANT SCIENCE 2021; 12:784037. [PMID: 34899812 PMCID: PMC8655879 DOI: 10.3389/fpls.2021.784037] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/27/2021] [Accepted: 11/03/2021] [Indexed: 05/17/2023]
Abstract
Rice (Oryza sativa L.) is an important staple food crop for more than half of the world's population. Enhancing the grain quality and yield of rice to meet growing demand remains a major challenge. Here, we show that OsMKK3 encode a MAP kinase kinase that controls grain size and chalkiness by affecting cell proliferation in spikelet hulls. We showed that OsSPL16, GS5, and GIF1 have a substantial effect on the OsMKK3-regulated grain size pathway. OsMKK3 has experienced strong directional selection in indica and japonica. Wild rice accessions contained four OsMKK3 haplotypes, suggesting that the OsMKK3 haplotypes present in cultivated rice likely originated from different wild rice accessions during rice domestication. OsMKK3-Hap1, gs3, and gw8 were polymerized to enhance the grain length. Polymerization of beneficial alleles, such as OsMKK3-Hap1, gs3, gw8, fgr, alk, chalk5, and wx, also improved the quality of hybrid rice. Overall, the results indicated that beneficial OsMKK3 alleles could be used for genomic-assisted breeding for rice cultivar improvement and be polymerized with other beneficial alleles.
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Affiliation(s)
- Yinghua Pan
- Guangxi Key Laboratory of Rice Genetics and Breeding, Rice Research Institute, Guangxi Academy of Agricultural Sciences, Nanning, China
| | - Lei Chen
- Guangxi Key Laboratory of Rice Genetics and Breeding, Rice Research Institute, Guangxi Academy of Agricultural Sciences, Nanning, China
| | - Yan Zhao
- State Key Laboratory of Crop Biology, Shandong Key Laboratory of Crop Biology, College of Agronomy, Shandong Agricultural University, Tai’an, China
| | - Haifeng Guo
- Beijing Key Laboratory of Crop Genetic Improvement, State Key Laboratory of Agrobiotechnology, College of Agronomy and Biotechnology, China Agricultural University, Beijing, China
| | - Jingcheng Li
- Guangxi Key Laboratory of Rice Genetics and Breeding, Rice Research Institute, Guangxi Academy of Agricultural Sciences, Nanning, China
| | | | - Chunju Lu
- Guangxi Key Laboratory of Rice Genetics and Breeding, Rice Research Institute, Guangxi Academy of Agricultural Sciences, Nanning, China
| | - Weiyong Zhou
- Guangxi Key Laboratory of Rice Genetics and Breeding, Rice Research Institute, Guangxi Academy of Agricultural Sciences, Nanning, China
| | - Xingka Yang
- Guangxi Lvhai Seed Co., Ltd., Nanning, China
| | - Yuntao Liang
- Guangxi Key Laboratory of Rice Genetics and Breeding, Rice Research Institute, Guangxi Academy of Agricultural Sciences, Nanning, China
| | - Hao Wu
- Guangxi Crop Genetic Improvement and Biotechnology Laboratory, Guangxi Academy of Agricultural Sciences, Nanning, China
| | - Dongjing Qing
- Guangxi Crop Genetic Improvement and Biotechnology Laboratory, Guangxi Academy of Agricultural Sciences, Nanning, China
| | - Lijun Gao
- Guangxi Crop Genetic Improvement and Biotechnology Laboratory, Guangxi Academy of Agricultural Sciences, Nanning, China
- *Correspondence: Lijun Gao,
| | - Gaoxing Dai
- Guangxi Key Laboratory of Rice Genetics and Breeding, Rice Research Institute, Guangxi Academy of Agricultural Sciences, Nanning, China
- Gaoxing Dai,
| | - Danting Li
- Guangxi Key Laboratory of Rice Genetics and Breeding, Rice Research Institute, Guangxi Academy of Agricultural Sciences, Nanning, China
- Danting Li,
| | - Guofu Deng
- Guangxi Crop Genetic Improvement and Biotechnology Laboratory, Guangxi Academy of Agricultural Sciences, Nanning, China
- Guofu Deng,
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78
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Jukanti AK, Pautong PA, Liu Q, Sreenivasulu N. Low glycemic index rice—a desired trait in starchy staples. Trends Food Sci Technol 2020. [DOI: 10.1016/j.tifs.2020.10.006] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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79
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Zhang N, Wang M, Fu J, Shen Y, Ding Y, Wu D, Shu X, Song W. Identifying genes for resistant starch, slowly digestible starch, and rapidly digestible starch in rice using genome-wide association studies. Genes Genomics 2020; 42:1227-1238. [PMID: 32901332 DOI: 10.1007/s13258-020-00981-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2020] [Accepted: 07/29/2020] [Indexed: 01/09/2023]
Abstract
BACKGROUND The digestibility of starch is important for the nutritive value of staple food. Although several genes are responsible for resistant starch (RS) and slowly digestible starch (SDS), gaps persist concerning the molecular basis of RS and SDS formation due to the complex genetic mechanisms of starch digestibility. OBJECTIVES The objective of this study was to identify new genes for starch digestibility in rice and interprete the genetic mechanisms of RS and SDS by GWAS. METHODS Genome-wide association studies were conducted by associating the RS and SDS phenotypes of 104 re-sequenced rice lines to an SNP dataset of 2,288,867 sites using a compressed mixed linear model. Candidate genes were identified according to the position of the SNPs based on data from the MSU Rice Genome Annotation Project. RESULTS Seven quantitative trait loci (QTLs) were detected to be associated with the RS content, among which the SNP 6 m1765761 was located on Waxy. Starch branching enzymes IIa (BEIIa) close to QTL qRS-I4 was detected and further identified as a specific candidate gene for RS in INDICA. Two QTLs were associated with SDS, and the LOC_Os09g09360 encoding lipase was identified as a causal gene for SDS. CONCLUSIONS GWAS is a valid strategy to genetically dissect the formation of starch digestion properties in rice. RS formation in grains is dependent on the rice type; lipid might also contribute to starch digestibility and should be an alternative factor to improve rice starch digestibility.
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Affiliation(s)
- Ning Zhang
- State Key Laboratory of Rice Biology and Key Lab of the Ministry of Agriculture for Nuclear Agricultural Sciences, Institute of Nuclear Agricultural Sciences, Zhejiang University, Hangzhou, 310029, P.R. China
| | - Maike Wang
- State Key Laboratory of Rice Biology and Key Lab of the Ministry of Agriculture for Nuclear Agricultural Sciences, Institute of Nuclear Agricultural Sciences, Zhejiang University, Hangzhou, 310029, P.R. China
| | - Ji Fu
- State Key Laboratory of Rice Biology and Key Lab of the Ministry of Agriculture for Nuclear Agricultural Sciences, Institute of Nuclear Agricultural Sciences, Zhejiang University, Hangzhou, 310029, P.R. China
| | - Yi Shen
- State Key Laboratory of Rice Biology and Key Lab of the Ministry of Agriculture for Nuclear Agricultural Sciences, Institute of Nuclear Agricultural Sciences, Zhejiang University, Hangzhou, 310029, P.R. China
| | - Yi Ding
- State Key Laboratory of Rice Biology and Key Lab of the Ministry of Agriculture for Nuclear Agricultural Sciences, Institute of Nuclear Agricultural Sciences, Zhejiang University, Hangzhou, 310029, P.R. China
| | - Dianxing Wu
- State Key Laboratory of Rice Biology and Key Lab of the Ministry of Agriculture for Nuclear Agricultural Sciences, Institute of Nuclear Agricultural Sciences, Zhejiang University, Hangzhou, 310029, P.R. China
| | - Xiaoli Shu
- State Key Laboratory of Rice Biology and Key Lab of the Ministry of Agriculture for Nuclear Agricultural Sciences, Institute of Nuclear Agricultural Sciences, Zhejiang University, Hangzhou, 310029, P.R. China.
| | - Wenjian Song
- State Key Laboratory of Rice Biology and Key Lab of the Ministry of Agriculture for Nuclear Agricultural Sciences, Institute of Nuclear Agricultural Sciences, Zhejiang University, Hangzhou, 310029, P.R. China. .,Agricultural Technology Extension Center, Zhejiang University, Hangzhou, 310029, P.R. China.
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Guo D, Ling X, Zhou X, Li X, Wang J, Qiu S, Yang Y, Zhang B. Evaluation of the Quality of a High-Resistant Starch and Low-Glutelin Rice ( Oryza sativa L.) Generated through CRISPR/Cas9-Mediated Targeted Mutagenesis. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2020; 68:9733-9742. [PMID: 32786832 DOI: 10.1021/acs.jafc.0c02995] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
A high-resistant starch (RS) and low-glutelin diet is beneficial for the health of patients with diabetes and kidney diseases. Rice is an important food crop worldwide. Previous studies have demonstrated that downregulating the expression of rice starch branching enzyme IIb (SBEIIb) affected the composition and the structure of starch. However, there has been no report about generating the loss-of-function mutants of SBEIIb using low-glutelin rice cultivars as recipients. In this study, we adopted a CRISPR/Cas9 system to induce site-specific mutations at the SBEIIb locus in an elite low-glutelin japonica rice cultivar derived from Low Glutelin Content-1 (LGC-1) and successfully obtained two independent transgene-free sbeIIb/Lgc1 mutant lines. In the mutant lines, the apparent amylose content (AAC) was increased by approximately 1.8-fold and the RS content reached approximately 6%. The glutelin content was approximately 2%, maintaining the low-glutelin trait of the recipient cultivar. The formation mechanism of RS was explored by analyzing the fine structures and the properties of starch. According to the X-ray diffraction pattern and the increased lipid content, the high RS content of the sbeIIb/Lgc1 lines was attributed to the increased content of amylose-lipid complex. Further analyses of the nutritional quality revealed that the soluble sugar and lipid contents, especially sucrose and unsaturated fatty acids, increased in the sbeIIb/Lgc1 lines significantly. This research is expected to facilitate the cultivation and the application of functional rice suitable for patients with diabetes and kidney diseases.
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Affiliation(s)
- Dongshu Guo
- Provincial Key Laboratory of Agrobiology, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China
- Institute of Germplasm Resources and Biotechnology, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China
| | - Xitie Ling
- Provincial Key Laboratory of Agrobiology, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China
- Institute of Germplasm Resources and Biotechnology, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China
| | - Xiaogeng Zhou
- Provincial Key Laboratory of Agrobiology, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China
- Institute of Germplasm Resources and Biotechnology, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China
| | - Xiao Li
- Provincial Key Laboratory of Agrobiology, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China
- Institute of Germplasm Resources and Biotechnology, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China
| | - Jinyan Wang
- Provincial Key Laboratory of Agrobiology, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China
- Institute of Germplasm Resources and Biotechnology, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China
| | - Shi Qiu
- Provincial Key Laboratory of Agrobiology, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China
- Institute of Germplasm Resources and Biotechnology, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China
| | - Yuwen Yang
- Provincial Key Laboratory of Agrobiology, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China
- Institute of Germplasm Resources and Biotechnology, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China
| | - Baolong Zhang
- Provincial Key Laboratory of Agrobiology, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China
- Institute of Germplasm Resources and Biotechnology, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China
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81
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Parween S, Anonuevo JJ, Butardo VM, Misra G, Anacleto R, Llorente C, Kosik O, Romero MV, Bandonill EH, Mendioro MS, Lovegrove A, Fernie AR, Brotman Y, Sreenivasulu N. Balancing the double-edged sword effect of increased resistant starch content and its impact on rice texture: its genetics and molecular physiological mechanisms. PLANT BIOTECHNOLOGY JOURNAL 2020; 18:1763-1777. [PMID: 31945237 PMCID: PMC7336377 DOI: 10.1111/pbi.13339] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/13/2019] [Revised: 12/15/2019] [Accepted: 01/05/2020] [Indexed: 05/07/2023]
Abstract
Resistant starch (RS) is the portion of starch that escapes gastrointestinal digestion and acts as a substrate for fermentation of probiotic bacteria in the gut. Aside from enhancing gut health, RS contributes to a lower glycemic index. A genome-wide association study coupled with targeted gene association studies was conducted utilizing a diverse panel of 281 resequenced Indica rice lines comprising of ~2.2 million single nucleotide polymorphisms. Low-to-intermediate RS phenotypic variations were identified in the rice diversity panel, resulting in novel associations of RS to several genes associated with amylopectin biosynthesis and degradation. Selected rice lines encoding superior alleles of SSIIa with medium RS and inferior alleles with low RS groups were subjected to detailed transcriptomic, metabolomic, non-starch dietary fibre (DF), starch structural and textural attributes. The gene regulatory networks highlighted the importance of a protein phosphatase alongside multiple genes of starch metabolism. Metabolomics analyses resulted in the identification of several metabolite hubs (carboxylic acid, sugars and polyamines) in the medium RS group. Among DF, mannose and galactose from the water-insoluble fraction were found to be highly associated with low and medium RS lines, respectively. Starch structural analyses revealed that a moderate increase in RS is also linked to an elevation of amylose 1 and amylose 2 fractions. Although rice lines with medium RS content negatively affected textural and viscosity properties in comparison to low RS, the textural property of medium RS lines was in the same acceptable range as IR64, a rice mega variety popular in Asia.
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Affiliation(s)
- Sabiha Parween
- International Rice Research InstituteMetro ManilaPhilippines
| | | | - Vito M. Butardo
- International Rice Research InstituteMetro ManilaPhilippines
- Present address:
Department of Chemistry and BiotechnologyFaculty of Science, Engineering and TechnologySwinburne University of TechnologyHawthornVictoriaAustralia
| | - Gopal Misra
- International Rice Research InstituteMetro ManilaPhilippines
| | - Roslen Anacleto
- International Rice Research InstituteMetro ManilaPhilippines
| | - Cindy Llorente
- International Rice Research InstituteMetro ManilaPhilippines
| | - Ondrej Kosik
- Department of Plant SciencesRothamsted ResearchHarpendenHertsUK
| | - Marissa V. Romero
- Philippine Rice Research InstituteMaligayaScience City of MuñozPhilippines
| | | | - Merlyn S. Mendioro
- Institute of Biological SciencesCollege of Arts and ScienceUniversity of PhilippinesLos BanosPhilippines
| | | | | | - Yariv Brotman
- Department of Life SciencesBen‐Gurion University of the NegevBeershebaIsrael
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82
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Krishnan V, Awana M, Samota MK, Warwate SI, Kulshreshtha A, Ray M, Bollinedi H, Singh AK, Thandapilly SJ, Praveen S, Singh A. Pullulanase activity: A novel indicator of inherent resistant starch in rice (Oryza sativa. L). Int J Biol Macromol 2020; 152:1213-1223. [DOI: 10.1016/j.ijbiomac.2019.10.218] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2019] [Revised: 10/03/2019] [Accepted: 10/24/2019] [Indexed: 10/25/2022]
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83
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He W, Liu X, Lin L, Xu A, Hao D, Wei C. The defective effect of starch branching enzyme IIb from weak to strong induces the formation of biphasic starch granules in amylose-extender maize endosperm. PLANT MOLECULAR BIOLOGY 2020; 103:355-371. [PMID: 32193789 DOI: 10.1007/s11103-020-00998-w] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/07/2019] [Accepted: 03/12/2020] [Indexed: 05/07/2023]
Abstract
Biphasic starch granules in maize ae mutant underwent the weak to strong SBEIIb-defective effect during endosperm development, leading to no birefringence in their exterior due to extended long branch-chains of amylopectin. Biphasic starch granules are usually detected regionally in cereal endosperm lacking starch branching enzyme (SBE). However, their molecular structure, formation mechanism, and regional distribution are unclear. In this research, biphasic starch granules were observed in the inner region of crown endosperm of maize ae mutant, and had poorly oriented structure with comb-like profiles in their exterior. The inner endosperm (IE) rich in biphasic starch granules and outer endosperm (OE) without biphasic starch granules were investigated. The starch had lower amylose content and higher proportion of long branch-chains of amylopectin in IE than in OE, and the exterior of biphasic starch granules had less amylose and more long branch-chains of amylopectin than the interior. Compared with OE, the expression pattern of starch synthesis related enzymes changed significantly in IE. The granule-bound starch synthase I activity within biphasic starch granules decreased slightly. The IE experienced more severe hypoxic stress than OE, and the up-regulated anaerobic respiration pathway indicated an increase in carbon consumption. The starch in IE underwent the SBEIIb-defective effect from weak to strong due to the lack of sufficient carbon inflow, leading to the formation of biphasic starch granules and their regional distribution in endosperm. The results provided information for understanding the biphasic starch granules.
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Affiliation(s)
- Wei He
- Key Laboratory of Crop Genetics and Physiology of Jiangsu Province/Key Laboratory of Plant Functional Genomics of the Ministry of Education, Yangzhou University, Yangzhou, 225009, China
- Co-Innovation Center for Modern Production Technology of Grain Crops of Jiangsu Province/Joint International Research Laboratory of Agriculture and Agri-Product Safety of the Ministry of Education, Yangzhou University, Yangzhou, 225009, China
| | - Xiangguo Liu
- Jilin Provincial Key Laboratory of Agricultural Biotechnology, Institute of Agricultural Biotechnology, Jilin Academy of Agricultural Sciences (JAAS), Changchun, 130033, China
| | - Lingshang Lin
- Key Laboratory of Crop Genetics and Physiology of Jiangsu Province/Key Laboratory of Plant Functional Genomics of the Ministry of Education, Yangzhou University, Yangzhou, 225009, China
- Co-Innovation Center for Modern Production Technology of Grain Crops of Jiangsu Province/Joint International Research Laboratory of Agriculture and Agri-Product Safety of the Ministry of Education, Yangzhou University, Yangzhou, 225009, China
| | - Ahui Xu
- Key Laboratory of Crop Genetics and Physiology of Jiangsu Province/Key Laboratory of Plant Functional Genomics of the Ministry of Education, Yangzhou University, Yangzhou, 225009, China
- Co-Innovation Center for Modern Production Technology of Grain Crops of Jiangsu Province/Joint International Research Laboratory of Agriculture and Agri-Product Safety of the Ministry of Education, Yangzhou University, Yangzhou, 225009, China
| | - Dongyun Hao
- Jilin Provincial Key Laboratory of Agricultural Biotechnology, Institute of Agricultural Biotechnology, Jilin Academy of Agricultural Sciences (JAAS), Changchun, 130033, China
| | - Cunxu Wei
- Key Laboratory of Crop Genetics and Physiology of Jiangsu Province/Key Laboratory of Plant Functional Genomics of the Ministry of Education, Yangzhou University, Yangzhou, 225009, China.
- Co-Innovation Center for Modern Production Technology of Grain Crops of Jiangsu Province/Joint International Research Laboratory of Agriculture and Agri-Product Safety of the Ministry of Education, Yangzhou University, Yangzhou, 225009, China.
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84
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Bao J, Ying Y, Zhou X, Xu Y, Wu P, Xu F, Pang Y. Relationships among starch biosynthesizing protein content, fine structure and functionality in rice. Carbohydr Polym 2020; 237:116118. [DOI: 10.1016/j.carbpol.2020.116118] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2020] [Revised: 03/01/2020] [Accepted: 03/03/2020] [Indexed: 12/17/2022]
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85
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Kumar A, Dash GK, Barik M, Panda PA, Lal MK, Baig MJ, Swain P. Effect of Drought stress on Resistant starch content and Glycemic index of rice (
Oryza sativa
L.). STARCH-STARKE 2020. [DOI: 10.1002/star.201900229] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Awadhesh Kumar
- Crop Physiology and Biochemistry Division ICAR‐National Rice Research Institute Cuttack Odisha India 753006
| | - Goutam Kumar Dash
- Crop Physiology and Biochemistry Division ICAR‐National Rice Research Institute Cuttack Odisha India 753006
| | - Madhusmita Barik
- Crop Physiology and Biochemistry Division ICAR‐National Rice Research Institute Cuttack Odisha India 753006
| | - Puja Archana Panda
- Crop Physiology and Biochemistry Division ICAR‐National Rice Research Institute Cuttack Odisha India 753006
| | - Milan Kumar Lal
- Division of Crop Physiology, Biochemistry & Post‐harvest Technology ICAR‐Central Potato Research Institute Shimla HP India 171001
| | - Mirza Jaynul Baig
- Crop Physiology and Biochemistry Division ICAR‐National Rice Research Institute Cuttack Odisha India 753006
| | - Padmini Swain
- Crop Physiology and Biochemistry Division ICAR‐National Rice Research Institute Cuttack Odisha India 753006
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86
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Yu S, Ali J, Zhang C, Li Z, Zhang Q. Genomic Breeding of Green Super Rice Varieties and Their Deployment in Asia and Africa. TAG. THEORETICAL AND APPLIED GENETICS. THEORETISCHE UND ANGEWANDTE GENETIK 2020; 133:1427-1442. [PMID: 31915875 PMCID: PMC7214492 DOI: 10.1007/s00122-019-03516-9] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/12/2019] [Accepted: 12/17/2019] [Indexed: 05/22/2023]
Abstract
KEY MESSAGE The "Green Super Rice" (GSR) project aims to fundamentally transform crop production techniques and promote the development of green agriculture based on functional genomics and breeding of GSR varieties by whole-genome breeding platforms. Rice (Oryza sativa L.) is one of the leading food crops of the world, and the safe production of rice plays a central role in ensuring food security. However, the conflicts between rice production and environmental resources are becoming increasingly acute. For this reason, scientists in China have proposed the concept of Green Super Rice for promoting resource-saving and environment-friendly rice production, while still achieving a yield increase and quality improvement. GSR is becoming one of the major goals for agricultural research and crop improvement worldwide, which aims to mine and use vital genes associated with superior agronomic traits such as high yield, good quality, nutrient efficiency, and resistance against insects and stresses; establish genomic breeding platforms to breed and apply GSR; and set up resource-saving and environment-friendly cultivation management systems. GSR has been introduced into eight African and eight Asian countries and has contributed significantly to rice cultivation and food security in these countries. This article mainly describes the GSR concept and recent research progress, as well as the significant achievements in GSR breeding and its application.
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Affiliation(s)
- Sibin Yu
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan, 430070, China
| | - Jauhar Ali
- International Rice Research Institute, DAPO Box 7777, Metro Manila, Philippines
| | - Chaopu Zhang
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan, 430070, China
| | - Zhikang Li
- Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, China.
- College of Agronomy, Anhui Agricultural University, Hefei, China.
| | - Qifa Zhang
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan, 430070, China.
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87
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Wang H, Ham TH, Im DE, Lar SM, Jang SG, Lee J, Mo Y, Jeung JU, Kim ST, Kwon SW. A New SNP in Rice Gene Encoding Pyruvate Phosphate Dikinase (PPDK) Associated with Floury Endosperm. Genes (Basel) 2020; 11:genes11040465. [PMID: 32344582 PMCID: PMC7230733 DOI: 10.3390/genes11040465] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2020] [Revised: 04/16/2020] [Accepted: 04/22/2020] [Indexed: 01/26/2023] Open
Abstract
Rice varieties with suitable flour-making qualities are required to promote the rice processed-food industry and to boost rice consumption. A rice mutation, Namil(SA)-flo1, produces grains with floury endosperm. Overall, grains with low grain hardness, low starch damage, and fine particle size are more suitable for use in flour processing grains with waxy, dull endosperm with normal grain hardness and a high amylose content. In this study, fine mapping found a C to T single nucleotide polymorphism (SNP) in exon 2 of the gene encoding cytosolic pyruvate phosphate dikinase (cyOsPPDK). The SNP resulted in a change of serine to phenylalanine acid at amino acid position 101. The gene was named FLOURY ENDOSPERM 4-5 (FLO4-5). Co-segregation analysis with the developed cleaved amplified polymorphic sequence (CAPS) markers revealed co-segregation between the floury phenotype and the flo4-5. This CAPS marker could be applied directly for marker-assisted selection. Real-time RT-PCR experiments revealed that PPDK was expressed at considerably higher levels in the flo4-5 mutant than in the wild type during the grain filling stage. Plastid ADP-glucose pyrophosphorylase small subunit (AGPS2a and AGPS2b) and soluble starch synthase (SSIIb and SSIIc) also exhibited enhanced expression in the flo4-5 mutant.
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Affiliation(s)
- Heng Wang
- Department of Plant Bioscience, College of Natural Resources and Life Science, Pusan National University, Miryang 50463, Korea; (H.W.); (D.-E.I.); (S.M.L.); (S.-G.J.); (S.T.K.)
- State Key Laboratory of Microbial Metabolism, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Tae-Ho Ham
- Department of Applied Bioscience, Konkuk University, Seoul 05029, Korea; (T.-H.H.); (J.L.)
| | - Da-Eun Im
- Department of Plant Bioscience, College of Natural Resources and Life Science, Pusan National University, Miryang 50463, Korea; (H.W.); (D.-E.I.); (S.M.L.); (S.-G.J.); (S.T.K.)
| | - San Mar Lar
- Department of Plant Bioscience, College of Natural Resources and Life Science, Pusan National University, Miryang 50463, Korea; (H.W.); (D.-E.I.); (S.M.L.); (S.-G.J.); (S.T.K.)
| | - Seong-Gyu Jang
- Department of Plant Bioscience, College of Natural Resources and Life Science, Pusan National University, Miryang 50463, Korea; (H.W.); (D.-E.I.); (S.M.L.); (S.-G.J.); (S.T.K.)
| | - Joohyun Lee
- Department of Applied Bioscience, Konkuk University, Seoul 05029, Korea; (T.-H.H.); (J.L.)
| | - Youngjun Mo
- National Institute of Crop Science, Rural Development Administration, Jeonju 54874, Korea; (Y.M.); (J.-U.J.)
| | - Ji-Ung Jeung
- National Institute of Crop Science, Rural Development Administration, Jeonju 54874, Korea; (Y.M.); (J.-U.J.)
| | - Sun Tae Kim
- Department of Plant Bioscience, College of Natural Resources and Life Science, Pusan National University, Miryang 50463, Korea; (H.W.); (D.-E.I.); (S.M.L.); (S.-G.J.); (S.T.K.)
| | - Soon-Wook Kwon
- Department of Plant Bioscience, College of Natural Resources and Life Science, Pusan National University, Miryang 50463, Korea; (H.W.); (D.-E.I.); (S.M.L.); (S.-G.J.); (S.T.K.)
- Correspondence: ; Tel.: +82-55-350-5506
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89
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A critical review on structural properties and formation mechanism of heterogeneous starch granules in cereal endosperm lacking starch branching enzyme. Food Hydrocoll 2020. [DOI: 10.1016/j.foodhyd.2019.105434] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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90
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Generation of selectable marker-free soft transgenic rice with transparent kernels by downregulation of SSSII-2. ACTA ACUST UNITED AC 2020. [DOI: 10.1016/j.cj.2019.05.006] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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91
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Tang L, Zhang F, Liu A, Sun J, Mei S, Wang X, Liu Z, Liu W, Lu Q, Chen S. Genome-Wide Association Analysis Dissects the Genetic Basis of the Grain Carbon and Nitrogen Contents in Milled Rice. RICE (NEW YORK, N.Y.) 2019; 12:101. [PMID: 31889226 PMCID: PMC6937365 DOI: 10.1186/s12284-019-0362-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2019] [Accepted: 12/20/2019] [Indexed: 05/21/2023]
Abstract
BACKGROUND Carbon (C) and nitrogen (N) are two fundamental components of starch and protein, which are important determinants of grain yield and quality. The food preferences of consumers and the expected end-use of grains in different rice-growing regions require diverse varieties that differ in terms of the grain N content (GNC) and grain C content (GCC) of milled rice. Thus, it is important that quantitative trait loci (QTLs)/genes with large effects on the variation of GNC and GCC are identified in breeding programs. RESULTS To dissect the genetic basis of the variation of GNC and GCC in rice, the Dumas combustion method was used to analyze 751 diverse accessions regarding the GNC, GCC, and C/N ratio of the milled grains. The GCC and GNC differed significantly among the rice subgroups, especially between Xian/Indica (XI) and Geng/Japonica (GJ). Interestingly, in the GJ subgroup, the GNC was significantly lower in modern varieties (MV) than in landraces (LAN). In the XI subgroup, the GCC was significantly higher in MV than in LAN. One, six, and nine QTLs, with 55 suggestively associated single nucleotide polymorphisms, were detected for the GNC, GCC, and C/N ratio in three panels during a single-locus genome-wide association study (GWAS). Three of these QTLs were also identified in a multi-locus GWAS. We screened 113 candidate genes in the 16 QTLs in gene-based haplotype analyses. Among these candidate genes, LOC_Os01g06240 at qNC-1.1, LOC_Os05g33300 at qCC-5.1, LOC_Os01g04360 at qCN-1.1, and LOC_Os05g43880 at qCN-5.2 may partially explain the significant differences between the LAN and MV. These candidate genes should be cloned and may be useful for molecular breeding to rapidly improve the GNC, GCC, and C/N ratio of rice. CONCLUSIONS Our findings represent valuable information regarding the genetic basis of the GNC and GCC and may be relevant for enhancing the application of favorable haplotypes of candidate genes for the molecular breeding of new rice varieties with specific grain N and C contents.
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Affiliation(s)
- Liang Tang
- Rice Research Institute, Shenyang Agricultural University, Shenyang, 110866, China.
| | - Fan Zhang
- Institute of Crop Sciences/National Key Facility for Crop Gene Resources and Genetic Improvement, Chinese Academy of Agricultural Sciences, 12 South Zhong-Guan-Cun Street, Haidian District, Beijing, 100081, China.
| | - Anjin Liu
- Rice Research Institute, Shenyang Agricultural University, Shenyang, 110866, China
| | - Jian Sun
- Rice Research Institute, Shenyang Agricultural University, Shenyang, 110866, China
| | - Song Mei
- Institute of Crop Sciences/National Key Facility for Crop Gene Resources and Genetic Improvement, Chinese Academy of Agricultural Sciences, 12 South Zhong-Guan-Cun Street, Haidian District, Beijing, 100081, China
| | - Xin Wang
- Rice Research Institute, Shenyang Agricultural University, Shenyang, 110866, China
| | - Zhongyuan Liu
- Rice Research Institute, Shenyang Agricultural University, Shenyang, 110866, China
| | - Wanying Liu
- Rice Research Institute, Shenyang Agricultural University, Shenyang, 110866, China
| | - Qing Lu
- Rice Research Institute, Shenyang Agricultural University, Shenyang, 110866, China
| | - Shuangjie Chen
- Rice Research Institute, Shenyang Agricultural University, Shenyang, 110866, China
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92
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Tian QQ, Li X, Lu CM, Fang XW. Breeding Rice lines for physio-functional food through indica ‘Zhaxima’ × japonica ‘Nanjing 46’ haploid technique. FOOD PRODUCTION, PROCESSING AND NUTRITION 2019. [DOI: 10.1186/s43014-019-0010-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
AbstractResistant starch (RS) encompasses those forms of starch which are not accessible to human digestive enzymes and are fermented in the colons producing short chain fatty acids. The plant materials containing RS are few in the world. In this contribution, the culture ability of callus from anthers of F1 plants from, landraces, ‘Zhaxima’(Oryza sativa var. indica, high-RS rice line with 7.705 ± 0.142, g/100 g) × ‘Nanjing 46’ (Oryza sativa var. japonica, rice variety with RS content (g/100 g) of 0.200 ± 0.001 crosses were studied for obtaining high RS rice plants. The results showed that when M8 basic induction medium was added with 1.5 mg /L 2,4-D、2 mg /LNAA and 0.3 mg /L KT, the inductivity of callus was high as 32.14% for 21 d after pretreatment at 4 °C for 3 d; When MS differentiation basic medium was added with 2 mg /LKT and 3 mg /L ABA, the frequency of regeneration for callus was 50.3% with only a regeneration frequency of 4.55% grown into green seedlings. The RS content in the seeds was between those of the two parents and was partially normally distributed, the highest RS contents of the regenerated plants was as high as 7.66 ± 1.197%. This produced an efficient technology for regenerating stable rice lines with high RS and good eating quality using anthers culture.
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93
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Gurunathan S, Ramadoss BR, Mudili V, Siddaiah C, Kalagatur NK, Bapu JRK, Mohan CD, Alqarawi AA, Hashem A, Abd_Allah EF. Single Nucleotide Polymorphisms in Starch Biosynthetic Genes Associated With Increased Resistant Starch Concentration in Rice Mutant. Front Genet 2019; 10:946. [PMID: 31803220 PMCID: PMC6872638 DOI: 10.3389/fgene.2019.00946] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2019] [Accepted: 09/05/2019] [Indexed: 01/22/2023] Open
Abstract
Resistant Starch (RS), plays a crucial role in human health and nutrition by controlling glucose metabolism. RS or dietary fibre content in rice is low because it goes through a variety of process before it is ready for cooking and consumption. Hence, this study was carried out to develop a rice mutant with increased RS. The rice mutant (γ278) with increased RS was developed by utilizing gamma (γ) rays as a mutagen. Mutant γ278 was characterized for mutations in the starch biosynthetic genes viz., GBSSI, SSI, SSIIa, SSIIIa, SBEIa, and SBEIIb to reveal the functional mutations/variations led to high RS content in rice. A total of 31 sequence variants/mutations in six genes were identified. We report the discovery of three deleterious mutation/variants each in GBSSI, SSIIa, and SSIIIa with the potential to increase RS content in rice. Further, wild × mutant crosses were made to develop an F2 population to study the effect of combination of deleterious mutations. The SNP (GBSSI:ssIIa:ssIIIa) combination responsible for high RS content in F2 population was identified and recorded highest amylose content (AC) (26.18%) and RS (8.68%) content. In conclusion, this marker combination will be highly useful to develop a rice variety with increased RS.
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Affiliation(s)
- Selvakumar Gurunathan
- Centre for Plant Breeding and Genetics, Tamil Nadu Agricultural University, Coimbatore, India
- DRDO-BU-Centre for Life Sciences, Bharathiar University Campus, Coimbatore, India
| | | | - Venkataramana Mudili
- DRDO-BU-Centre for Life Sciences, Bharathiar University Campus, Coimbatore, India
| | | | | | | | | | - Abdulaziz A. Alqarawi
- Department of Plant Production, College of Food and Agricultural Sciences, King Saud University, Riyadh, Saudi Arabia
| | - Abeer Hashem
- Botany and Microbiology, Department, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Elsayed Fathi Abd_Allah
- Department of Plant Production, College of Food and Agricultural Sciences, King Saud University, Riyadh, Saudi Arabia
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94
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Jiang F, Du C, Jiang W, Wang L, Du SK. The preparation, formation, fermentability, and applications of resistant starch. Int J Biol Macromol 2019; 150:1155-1161. [PMID: 31739041 DOI: 10.1016/j.ijbiomac.2019.10.124] [Citation(s) in RCA: 65] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2019] [Revised: 10/11/2019] [Accepted: 10/13/2019] [Indexed: 01/10/2023]
Abstract
Resistant starch (RS) cannot be digested in the small intestine but can be fermented by microflora in the colon. To meet the demand for RS, effective methods and advanced equipment for preparing RS have emerged, but further development is needed. RS contents are affected by different prepared methods, starch source and certain nutrients such as protein, phenols, and hydrocolloids interacted with RS. As a beneficial fermentation substrate, RS modifies and stabilizes the intestinal flora to balance the intestinal environment and improve intestinal tract health and function. RS is also a kind of ingredient with potential physiological function, even better than that dietary fiber, but also in terms of providing various health benefits. RS has good food-processing characteristics as well and can thus be widely used in the food industry.
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Affiliation(s)
- Fan Jiang
- College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Chunwei Du
- College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Wenqian Jiang
- College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Liying Wang
- College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Shuang-Kui Du
- College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi 712100, China.
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95
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Ding Y, Huang J, Zhang N, Rasmussen SK, Wu D, Shu X. Physiochemical properties of rice with contrasting resistant starch content. J Cereal Sci 2019. [DOI: 10.1016/j.jcs.2019.102815] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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96
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GWAS for Starch-Related Parameters in Japonica Rice ( Oryza sativa L.). PLANTS 2019; 8:plants8080292. [PMID: 31430915 PMCID: PMC6724095 DOI: 10.3390/plants8080292] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/31/2019] [Revised: 07/12/2019] [Accepted: 08/13/2019] [Indexed: 11/28/2022]
Abstract
Rice quality is mainly related to the following two starch components, apparent amylose content (AAC) and resistant starch (RS). The former affects grain cooking properties, while RS acts as a prebiotic. In the present study, a Genome Wide Association Scan (GWAS) was performed using 115 rice japonica accessions, including tropical and temperate genotypes, with the purpose of expanding the knowledge of the genetic bases affecting RS and AAC. High phenotypic variation was recorded for the two traits, which positively correlated. Moreover, both the parameters correlated with seed length (positive correlation) and seed width (negative correlation). A correlational selection according to human preferences has been hypothesized for the two starch traits and grain size. In addition, human selection has been proposed as the causal agent even for the different phenotypes related to starch and grain size showed by the tropical and temperate japonica accessions utilized in this study. The present GWAS led to the identification of 11 associations for RS on seven chromosomes and five associations for AAC on chromosome 6. Candidate genes and co-positional relationships with quantitative trait loci (QTLs) previously identified as affecting RS and AAC were identified for 6 associations. The candidate genes and the new RS- and/or AAC-associated regions detected provide valuable sources for future functional characterizations and for breeding programs aimed at improving rice grain quality.
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97
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Zhang C, Zhu J, Chen S, Fan X, Li Q, Lu Y, Wang M, Yu H, Yi C, Tang S, Gu M, Liu Q. Wx lv, the Ancestral Allele of Rice Waxy Gene. MOLECULAR PLANT 2019; 12:1157-1166. [PMID: 31181338 DOI: 10.1016/j.molp.2019.05.011] [Citation(s) in RCA: 98] [Impact Index Per Article: 19.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/15/2019] [Revised: 04/30/2019] [Accepted: 05/28/2019] [Indexed: 05/07/2023]
Abstract
In rice grains, the Waxy (Wx) gene is responsible for the synthesis of amylose, the most important determinant for eating and cooking quality. The effects of several Wx alleles on amylose content and the taste of cooked rice have been elucidated. However, the relationship between artificial selection and the evolution of various Wx alleles as well as their distribution remain unclear. Here we report the identification of an ancestral allele, Wxlv, which dramatically affects the mouthfeel of rice grains by modulating the size of amylose molecules. We demonstrated that Wxlv originated directly from wild rice, and the three major Wx alleles in cultivated rice (Wxb, Wxa, and Wxin) differentiated after the substitution of one base pair at the functional sites. These data indicate that the Wxlv allele played an important role in artificial selection and domestication. The findings also shed light on the evolution of various Wx alleles, which have greatly contributed to improving the eating and cooking quality of rice.
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Affiliation(s)
- Changquan Zhang
- Key Laboratory of Plant Functional Genomics of the Ministry of Education/Jiangsu Key Laboratory of Crop Genomics and Molecular Breeding, College of Agriculture, Yangzhou University, Yangzhou 225009, China; Co-Innovation Center for Modern Production Technology of Grain Crops of Jiangsu Province/Key Laboratory of Crop Genetics and Physiology of Jiangsu Province, Yangzhou University, Yangzhou 225009, China
| | - Jihui Zhu
- Key Laboratory of Plant Functional Genomics of the Ministry of Education/Jiangsu Key Laboratory of Crop Genomics and Molecular Breeding, College of Agriculture, Yangzhou University, Yangzhou 225009, China
| | - Shengjie Chen
- Key Laboratory of Plant Functional Genomics of the Ministry of Education/Jiangsu Key Laboratory of Crop Genomics and Molecular Breeding, College of Agriculture, Yangzhou University, Yangzhou 225009, China
| | - Xiaolei Fan
- Key Laboratory of Plant Functional Genomics of the Ministry of Education/Jiangsu Key Laboratory of Crop Genomics and Molecular Breeding, College of Agriculture, Yangzhou University, Yangzhou 225009, China
| | - Qianfeng Li
- Key Laboratory of Plant Functional Genomics of the Ministry of Education/Jiangsu Key Laboratory of Crop Genomics and Molecular Breeding, College of Agriculture, Yangzhou University, Yangzhou 225009, China; Co-Innovation Center for Modern Production Technology of Grain Crops of Jiangsu Province/Key Laboratory of Crop Genetics and Physiology of Jiangsu Province, Yangzhou University, Yangzhou 225009, China
| | - Yan Lu
- Key Laboratory of Plant Functional Genomics of the Ministry of Education/Jiangsu Key Laboratory of Crop Genomics and Molecular Breeding, College of Agriculture, Yangzhou University, Yangzhou 225009, China
| | - Min Wang
- Key Laboratory of Plant Functional Genomics of the Ministry of Education/Jiangsu Key Laboratory of Crop Genomics and Molecular Breeding, College of Agriculture, Yangzhou University, Yangzhou 225009, China
| | - Hengxiu Yu
- Key Laboratory of Plant Functional Genomics of the Ministry of Education/Jiangsu Key Laboratory of Crop Genomics and Molecular Breeding, College of Agriculture, Yangzhou University, Yangzhou 225009, China; Co-Innovation Center for Modern Production Technology of Grain Crops of Jiangsu Province/Key Laboratory of Crop Genetics and Physiology of Jiangsu Province, Yangzhou University, Yangzhou 225009, China
| | - Chuandeng Yi
- Key Laboratory of Plant Functional Genomics of the Ministry of Education/Jiangsu Key Laboratory of Crop Genomics and Molecular Breeding, College of Agriculture, Yangzhou University, Yangzhou 225009, China; Co-Innovation Center for Modern Production Technology of Grain Crops of Jiangsu Province/Key Laboratory of Crop Genetics and Physiology of Jiangsu Province, Yangzhou University, Yangzhou 225009, China
| | - Shuzhu Tang
- Key Laboratory of Plant Functional Genomics of the Ministry of Education/Jiangsu Key Laboratory of Crop Genomics and Molecular Breeding, College of Agriculture, Yangzhou University, Yangzhou 225009, China; Co-Innovation Center for Modern Production Technology of Grain Crops of Jiangsu Province/Key Laboratory of Crop Genetics and Physiology of Jiangsu Province, Yangzhou University, Yangzhou 225009, China
| | - Minghong Gu
- Key Laboratory of Plant Functional Genomics of the Ministry of Education/Jiangsu Key Laboratory of Crop Genomics and Molecular Breeding, College of Agriculture, Yangzhou University, Yangzhou 225009, China
| | - Qiaoquan Liu
- Key Laboratory of Plant Functional Genomics of the Ministry of Education/Jiangsu Key Laboratory of Crop Genomics and Molecular Breeding, College of Agriculture, Yangzhou University, Yangzhou 225009, China; Co-Innovation Center for Modern Production Technology of Grain Crops of Jiangsu Province/Key Laboratory of Crop Genetics and Physiology of Jiangsu Province, Yangzhou University, Yangzhou 225009, China.
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98
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Anacleto R, Badoni S, Parween S, Butardo VM, Misra G, Cuevas RP, Kuhlmann M, Trinidad TP, Mallillin AC, Acuin C, Bird AR, Morell MK, Sreenivasulu N. Integrating a genome-wide association study with a large-scale transcriptome analysis to predict genetic regions influencing the glycaemic index and texture in rice. PLANT BIOTECHNOLOGY JOURNAL 2019; 17:1261-1275. [PMID: 30549178 PMCID: PMC6575982 DOI: 10.1111/pbi.13051] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/19/2018] [Revised: 11/15/2018] [Accepted: 11/25/2018] [Indexed: 05/19/2023]
Abstract
Reliably generating rice varieties with low glycaemic index (GI) is an important nutritional intervention given the high rates of Type II diabetes incidences in Asia where rice is staple diet. We integrated a genome-wide association study (GWAS) with a transcriptome-wide association study (TWAS) to determine the genetic basis of the GI in rice. GWAS utilized 305 re-sequenced diverse indica panel comprising ~2.4 million single nucleotide polymorphisms (SNPs) enriched in genic regions. A novel association signal was detected at a synonymous SNP in exon 2 of LOC_Os05g03600 for intermediate-to-high GI phenotypic variation. Another major hotspot region was predicted for contributing intermediate-to-high GI variation, involves 26 genes on chromosome 6 (GI6.1). These set of genes included GBSSI, two hydrolase genes, genes involved in signalling and chromatin modification. The TWAS and methylome sequencing data revealed cis-acting functionally relevant genetic variants with differential methylation patterns in the hot spot GI6.1 region, narrowing the target to 13 genes. Conversely, the promoter region of GBSSI and its alternative splicing allele (G allele of Wxa ) explained the intermediate-to-high GI variation. A SNP (C˃T) at exon-10 was also highlighted in the preceding analyses to influence final viscosity (FV), which is independent of amylose content/GI. The low GI line with GC haplotype confirmed soft texture, while other two low GI lines with GT haplotype were characterized as hard and cohesive. The low GI lines were further confirmed through clinical in vivo studies. Gene regulatory network analysis highlighted the role of the non-starch polysaccharide pathway in lowering GI.
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Affiliation(s)
| | - Saurabh Badoni
- International Rice Research InstituteLos BañosPhilippines
| | - Sabiha Parween
- International Rice Research InstituteLos BañosPhilippines
| | - Vito M. Butardo
- International Rice Research InstituteLos BañosPhilippines
- Department of Chemistry and BiotechnologyFaculty of Science, Engineering and TechnologySwinburne University of TechnologyHawthornVic.Australia
| | - Gopal Misra
- International Rice Research InstituteLos BañosPhilippines
| | | | - Markus Kuhlmann
- The Leibniz Institute of Plant Genetics and Crop Plant Research (IPK)GaterslebenGermany
| | | | | | - Cecilia Acuin
- International Rice Research InstituteLos BañosPhilippines
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99
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Lin L, Pan T, Liu Q, Wei C. Cooking, morphological, mechanical and digestion properties of cooked rice with suppression of starch branching enzymes. Int J Biol Macromol 2019; 137:187-196. [PMID: 31255622 DOI: 10.1016/j.ijbiomac.2019.06.210] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2019] [Revised: 06/23/2019] [Accepted: 06/26/2019] [Indexed: 10/26/2022]
Abstract
Kernel components and some physicochemical properties of cooked rice were investigated and compared between a popular japonica rice Wu-xiang 9915 (WX) and its transgenic line (WX-SBEI/IIb-) with suppression of starch branching enzyme I/IIb. The starch content, especially amylopectin content, was significantly lower in WX-SBEI/IIb- than in WX. Brown rice flour had markedly higher gelatinization temperature in WX-SBEI/IIb- than in WX. The cooked kernels of WX-SBEI/IIb- had significantly lower volume swelling, leached material amount and wet weight than those of WX during cooking. Starch granules in WX kernel could be gelatinized completely and gradually from the exterior to the interior of endosperm, leading to breakage of cooked kernels. However, aggregate, elongated and small starch granules in the exterior of WX-SBEI/IIb- endosperm could not be gelatinized completely and remained their morphologies during cooking, leading to a high resistance of kernels to cooking. Brown rice flour of WX-SBEI/IIb- had significantly lower pasting viscosities, storage modulus and loss modulus but higher loss angle tangent than that of WX. The cooked kernels of WX-SBEI/IIb- had considerably higher hardness, springiness and cohesiveness but lower adhesiveness than those of WX. The starch in cooked kernels was more resistant to digestion in WX-SBEI/IIb- than in WX.
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Affiliation(s)
- Lingshang Lin
- Key Laboratory of Crop Genetics and Physiology of Jiangsu Province, Yangzhou University, Yangzhou 225009, China; Key Laboratory of Plant Functional Genomics of the Ministry of Education, Yangzhou University, Yangzhou 225009, China; Co-Innovation Center for Modern Production Technology of Grain Crops of Jiangsu Province/Joint International Research Laboratory of Agriculture & Agri-Product Safety of the Ministry of Education, Yangzhou University, Yangzhou 225009, China
| | - Ting Pan
- Key Laboratory of Crop Genetics and Physiology of Jiangsu Province, Yangzhou University, Yangzhou 225009, China; Key Laboratory of Plant Functional Genomics of the Ministry of Education, Yangzhou University, Yangzhou 225009, China; Co-Innovation Center for Modern Production Technology of Grain Crops of Jiangsu Province/Joint International Research Laboratory of Agriculture & Agri-Product Safety of the Ministry of Education, Yangzhou University, Yangzhou 225009, China
| | - Qiaoquan Liu
- Key Laboratory of Crop Genetics and Physiology of Jiangsu Province, Yangzhou University, Yangzhou 225009, China; Key Laboratory of Plant Functional Genomics of the Ministry of Education, Yangzhou University, Yangzhou 225009, China; Co-Innovation Center for Modern Production Technology of Grain Crops of Jiangsu Province/Joint International Research Laboratory of Agriculture & Agri-Product Safety of the Ministry of Education, Yangzhou University, Yangzhou 225009, China.
| | - Cunxu Wei
- Key Laboratory of Crop Genetics and Physiology of Jiangsu Province, Yangzhou University, Yangzhou 225009, China; Key Laboratory of Plant Functional Genomics of the Ministry of Education, Yangzhou University, Yangzhou 225009, China; Co-Innovation Center for Modern Production Technology of Grain Crops of Jiangsu Province/Joint International Research Laboratory of Agriculture & Agri-Product Safety of the Ministry of Education, Yangzhou University, Yangzhou 225009, China.
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Pan T, Lin L, Zhang L, Zhang C, Liu Q, Wei C. Changes in kernel properties,
in situ
gelatinization, and physicochemical properties of waxy rice with inhibition of starch branching enzyme during cooking. Int J Food Sci Technol 2019. [DOI: 10.1111/ijfs.14193] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Ting Pan
- Key Laboratory of Crop Genetics and Physiology of Jiangsu Province/Key Laboratory of Plant Functional Genomics of the Ministry of Education Yangzhou University Yangzhou 225009 China
- Co‐Innovation Center for Modern Production Technology of Grain Crops of Jiangsu Province/Joint International Research Laboratory of Agriculture & Agri‐Product Safety of the Ministry of Education Yangzhou University Yangzhou 225009 China
| | - Lingshang Lin
- Key Laboratory of Crop Genetics and Physiology of Jiangsu Province/Key Laboratory of Plant Functional Genomics of the Ministry of Education Yangzhou University Yangzhou 225009 China
- Co‐Innovation Center for Modern Production Technology of Grain Crops of Jiangsu Province/Joint International Research Laboratory of Agriculture & Agri‐Product Safety of the Ministry of Education Yangzhou University Yangzhou 225009 China
| | - Long Zhang
- Key Laboratory of Crop Genetics and Physiology of Jiangsu Province/Key Laboratory of Plant Functional Genomics of the Ministry of Education Yangzhou University Yangzhou 225009 China
- Co‐Innovation Center for Modern Production Technology of Grain Crops of Jiangsu Province/Joint International Research Laboratory of Agriculture & Agri‐Product Safety of the Ministry of Education Yangzhou University Yangzhou 225009 China
| | - Changquan Zhang
- Key Laboratory of Crop Genetics and Physiology of Jiangsu Province/Key Laboratory of Plant Functional Genomics of the Ministry of Education Yangzhou University Yangzhou 225009 China
- Co‐Innovation Center for Modern Production Technology of Grain Crops of Jiangsu Province/Joint International Research Laboratory of Agriculture & Agri‐Product Safety of the Ministry of Education Yangzhou University Yangzhou 225009 China
| | - Qiaoquan Liu
- Key Laboratory of Crop Genetics and Physiology of Jiangsu Province/Key Laboratory of Plant Functional Genomics of the Ministry of Education Yangzhou University Yangzhou 225009 China
- Co‐Innovation Center for Modern Production Technology of Grain Crops of Jiangsu Province/Joint International Research Laboratory of Agriculture & Agri‐Product Safety of the Ministry of Education Yangzhou University Yangzhou 225009 China
| | - Cunxu Wei
- Key Laboratory of Crop Genetics and Physiology of Jiangsu Province/Key Laboratory of Plant Functional Genomics of the Ministry of Education Yangzhou University Yangzhou 225009 China
- Co‐Innovation Center for Modern Production Technology of Grain Crops of Jiangsu Province/Joint International Research Laboratory of Agriculture & Agri‐Product Safety of the Ministry of Education Yangzhou University Yangzhou 225009 China
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