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Genetic Structure and Geographical Differentiation of Traditional Rice ( Oryza sativa L.) from Northern Vietnam. PLANTS 2021; 10:plants10102094. [PMID: 34685903 PMCID: PMC8540186 DOI: 10.3390/plants10102094] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/07/2021] [Revised: 10/01/2021] [Accepted: 10/01/2021] [Indexed: 11/24/2022]
Abstract
Northern Vietnam is one of the most important centers of genetic diversity for cultivated rice. Over thousands of years of cultivation, natural and artificial selection has preserved many traditional rice landraces in northern Vietnam due to its geographic situation, climatic conditions, and many ethnic groups. These local landraces serve as a rich source of genetic variation—an important resource for future crop improvement. In this study, we determined the genetic diversity and population structure of 79 rice landraces collected from northern Vietnam and 19 rice accessions collected from different countries. In total, 98 rice accessions could be differentiated into japonica and indica with moderate genetic diversity and a polymorphism information content of 0.382. Moreover, we found that genetic differentiation was related to geographical regions with an overall PhiPT (analog of fixation index FST) value of 0.130. We also detected subspecies-specific markers to classify rice (Oryza sativa L.) into indica and japonica. Additionally, we detected five marker-trait associations and rare alleles that can be applied in future breeding programs. Our results suggest that rice landraces in northern Vietnam have a dynamic genetic system that can create different levels of genetic differentiation among regions, but also maintain a balanced genetic diversity between regions.
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Maung TZ, Chu SH, Park YJ. Functional Haplotypes and Evolutionary Insight into the Granule-Bound Starch Synthase II ( GBSSII) Gene in Korean Rice Accessions (KRICE_CORE). Foods 2021; 10:2359. [PMID: 34681408 PMCID: PMC8535093 DOI: 10.3390/foods10102359] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2021] [Revised: 09/28/2021] [Accepted: 09/30/2021] [Indexed: 12/30/2022] Open
Abstract
Granule-bound starch synthase 2 (GBSSII), a paralogous isoform of GBSSI, carries out amylose biosynthesis in rice. Unlike GBSSI, it mainly functions in transient organs, such as leaves. Despite many reports on the starch gene family, little is known about the genetics and genomics of GBSSII. Haplotype analysis was conducted to unveil genetic variations (SNPs and InDels) of GBSSII (OS07G0412100) and it was also performed to gain evolutionary insight through genetic diversity, population genetic structure, and phylogenetic analyses using the KRICE_CORE set (475 rice accessions). Thirty nonsynonymous SNPs (nsSNPs) were detected across the diverse GBSSII coding regions, representing 38 haplotypes, including 13 cultivated, 21 wild, and 4 mixed (a combination of cultivated and wild) varieties. The cultivated haplotypes (C_1-C_13) contained more nsSNPs across the GBSSII genomic region than the wild varieties. Nucleotide diversity analysis highlighted the higher diversity values of the cultivated varieties (weedy = 0.0102, landrace = 0.0093, and bred = 0.0066) than the wild group (0.0045). The cultivated varieties exhibited no reduction in diversity during domestication. Diversity reduction in the japonica and the wild groups was evidenced by the negative Tajima's D values under purifying selection, suggesting the domestication signatures of GBSSII; however, balancing selection was indicated by positive Tajima's D values in indica. Principal component analysis and population genetics analyses estimated the ambiguous evolutionary relationships among the cultivated and wild rice groups, indicating highly diverse structural features of the rice accessions within the GBSSII genomic region. FST analysis differentiated most of the classified populations in a range of greater FST values. Our findings provide evolutionary insights into GBSSII and, consequently, a molecular breeding program can be implemented for select desired traits using these diverse nonsynonymous (functional) alleles.
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Affiliation(s)
- Thant Zin Maung
- Department of Plant Resources, College of Industrial Science, Kongju National University, Yesan 32439, Korea;
| | - Sang-Ho Chu
- Center of Crop Breeding on Omics and Artificial Intelligence, Kongju National University, Yesan 32439, Korea;
| | - Yong-Jin Park
- Department of Plant Resources, College of Industrial Science, Kongju National University, Yesan 32439, Korea;
- Center of Crop Breeding on Omics and Artificial Intelligence, Kongju National University, Yesan 32439, Korea;
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KHARSHIING GAYLE, CHRUNGOO NIKHILK. Wx alleles in rice: relationship with apparent amylose content of starch and a possible role in rice domestication. J Genet 2021. [DOI: 10.1007/s12041-021-01311-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Prathepha P. Unearthed New Indel in the Waxy Gene in Glutinous Rice Landraces from Thailand. Pak J Biol Sci 2021; 24:748-755. [PMID: 34486293 DOI: 10.3923/pjbs.2021.748.755] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
<b>Background and Objective:</b> Glutinous rice landraces have played important role in northeastern and northern region of Thailand and the Lao People's Democratic Republic (PDR) by ethnic groups in this area, both as staple food and ritual in rice culture since ancient times. At a present number of these rice, cultivars have decreased and disappeared from villages without considerations and/or explore DNA variation. This study compared target DNA sequences of <i>waxy</i> genes of a collection of glutinous rice landraces both upland and lowland rice. <b>Materials and Methods:</b> A collection of 50 glutinous rice landraces was explored DNA variation in the <i>Waxy</i> gene by re-sequencing DNA of the two segments (i.e., promoter, exon1 and intron1) of a gene. <b>Results:</b> New InDel of two deletion G at position 11 (GG-) and C at position 15 (CC-) were observed in DNA sequences of the promoter region and 5'untranslalted region of both upland and lowland rice accessions. Further, the (CT)<sub>17</sub> and (CT)<sub>18</sub> were two alleles in these glutinous rice landraces from northern and northeastern Thailand. All glutinous rice landraces exhibited a characteristic of low amylose content or glutinous rice: T Single Nucleotide Polymorphisms (SNP) (AGTTATA) in the first intron splice site. <b>Conclusion:</b> New InDel in DNA sequences of the promoter region of the <i>waxy</i> gene in glutinous rice landraces was first reported. This implies that it may reflect the status of genetic background in glutinous rice landraces in Thailand.
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Zhang C, Yang Y, Chen S, Liu X, Zhu J, Zhou L, Lu Y, Li Q, Fan X, Tang S, Gu M, Liu Q. A rare Waxy allele coordinately improves rice eating and cooking quality and grain transparency. JOURNAL OF INTEGRATIVE PLANT BIOLOGY 2021; 63:889-901. [PMID: 32886440 PMCID: PMC8246539 DOI: 10.1111/jipb.13010] [Citation(s) in RCA: 44] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/28/2020] [Accepted: 09/02/2020] [Indexed: 05/18/2023]
Abstract
In rice (Oryza sativa), amylose content (AC) is the major factor that determines eating and cooking quality (ECQ). The diversity in AC is largely attributed to natural allelic variation at the Waxy (Wx) locus. Here we identified a rare Wx allele, Wxmw , which combines a favorable AC, improved ECQ and grain transparency. Based on a phylogenetic analysis of Wx genomic sequences from 370 rice accessions, we speculated that Wxmw may have derived from recombination between two important natural Wx alleles, Wxin and Wxb . We validated the effects of Wxmw on rice grain quality using both transgenic lines and near-isogenic lines (NILs). When introgressed into the japonica Nipponbare (NIP) background, Wxmw resulted in a moderate AC that was intermediate between that of NILs carrying the Wxb allele and NILs with the Wxmp allele. Notably, mature grains of NILs fixed for Wxmw had an improved transparent endosperm relative to soft rice. Further, we introduced Wxmw into a high-yielding japonica cultivar via molecular marker-assisted selection: the introgressed lines exhibited clear improvements in ECQ and endosperm transparency. Our results suggest that Wxmw is a promising allele to improve grain quality, especially ECQ and grain transparency of high-yielding japonica cultivars, in rice breeding programs.
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Affiliation(s)
- Changquan Zhang
- Key Laboratory of Crop Genomics and Molecular Breeding of Jiangsu Province, State Key Laboratory of Hybrid RiceYangzhou UniversityYangzhou225009China
- Key Laboratory of Plant Functional Genomics of the Ministry of Education/Jiangsu Key Laboratory of Crop Genetics and Physiology/Co‐Innovation Center for Modern Production Technology of Grain Crops of Jiangsu ProvinceYangzhou UniversityYangzhou225009China
| | - Yong Yang
- Key Laboratory of Crop Genomics and Molecular Breeding of Jiangsu Province, State Key Laboratory of Hybrid RiceYangzhou UniversityYangzhou225009China
| | - Shengjie Chen
- Key Laboratory of Plant Functional Genomics of the Ministry of Education/Jiangsu Key Laboratory of Crop Genetics and Physiology/Co‐Innovation Center for Modern Production Technology of Grain Crops of Jiangsu ProvinceYangzhou UniversityYangzhou225009China
| | - Xueju Liu
- Key Laboratory of Plant Functional Genomics of the Ministry of Education/Jiangsu Key Laboratory of Crop Genetics and Physiology/Co‐Innovation Center for Modern Production Technology of Grain Crops of Jiangsu ProvinceYangzhou UniversityYangzhou225009China
| | - Jihui Zhu
- Key Laboratory of Crop Genomics and Molecular Breeding of Jiangsu Province, State Key Laboratory of Hybrid RiceYangzhou UniversityYangzhou225009China
- Key Laboratory of Plant Functional Genomics of the Ministry of Education/Jiangsu Key Laboratory of Crop Genetics and Physiology/Co‐Innovation Center for Modern Production Technology of Grain Crops of Jiangsu ProvinceYangzhou UniversityYangzhou225009China
| | - Lihui Zhou
- Key Laboratory of Plant Functional Genomics of the Ministry of Education/Jiangsu Key Laboratory of Crop Genetics and Physiology/Co‐Innovation Center for Modern Production Technology of Grain Crops of Jiangsu ProvinceYangzhou UniversityYangzhou225009China
| | - Yan Lu
- Key Laboratory of Plant Functional Genomics of the Ministry of Education/Jiangsu Key Laboratory of Crop Genetics and Physiology/Co‐Innovation Center for Modern Production Technology of Grain Crops of Jiangsu ProvinceYangzhou UniversityYangzhou225009China
| | - Qianfeng Li
- Key Laboratory of Crop Genomics and Molecular Breeding of Jiangsu Province, State Key Laboratory of Hybrid RiceYangzhou UniversityYangzhou225009China
- Key Laboratory of Plant Functional Genomics of the Ministry of Education/Jiangsu Key Laboratory of Crop Genetics and Physiology/Co‐Innovation Center for Modern Production Technology of Grain Crops of Jiangsu ProvinceYangzhou UniversityYangzhou225009China
| | - Xiaolei Fan
- Key Laboratory of Crop Genomics and Molecular Breeding of Jiangsu Province, State Key Laboratory of Hybrid RiceYangzhou UniversityYangzhou225009China
- Key Laboratory of Plant Functional Genomics of the Ministry of Education/Jiangsu Key Laboratory of Crop Genetics and Physiology/Co‐Innovation Center for Modern Production Technology of Grain Crops of Jiangsu ProvinceYangzhou UniversityYangzhou225009China
| | - Shuzhu Tang
- Key Laboratory of Crop Genomics and Molecular Breeding of Jiangsu Province, State Key Laboratory of Hybrid RiceYangzhou UniversityYangzhou225009China
- Key Laboratory of Plant Functional Genomics of the Ministry of Education/Jiangsu Key Laboratory of Crop Genetics and Physiology/Co‐Innovation Center for Modern Production Technology of Grain Crops of Jiangsu ProvinceYangzhou UniversityYangzhou225009China
| | - Minghong Gu
- Key Laboratory of Crop Genomics and Molecular Breeding of Jiangsu Province, State Key Laboratory of Hybrid RiceYangzhou UniversityYangzhou225009China
- Key Laboratory of Plant Functional Genomics of the Ministry of Education/Jiangsu Key Laboratory of Crop Genetics and Physiology/Co‐Innovation Center for Modern Production Technology of Grain Crops of Jiangsu ProvinceYangzhou UniversityYangzhou225009China
| | - Qiaoquan Liu
- Key Laboratory of Crop Genomics and Molecular Breeding of Jiangsu Province, State Key Laboratory of Hybrid RiceYangzhou UniversityYangzhou225009China
- Key Laboratory of Plant Functional Genomics of the Ministry of Education/Jiangsu Key Laboratory of Crop Genetics and Physiology/Co‐Innovation Center for Modern Production Technology of Grain Crops of Jiangsu ProvinceYangzhou UniversityYangzhou225009China
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Muto C, Tanaka K, Tabuchi H, Kurauchi N, Sato YI, Ishikawa R. Genetic diversity of preserved rice seed samples from the Mikawa area, Japan, stored in the Meiji era. BREEDING SCIENCE 2020; 70:347-354. [PMID: 32714057 PMCID: PMC7372032 DOI: 10.1270/jsbbs.19143] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/16/2019] [Accepted: 02/03/2020] [Indexed: 05/23/2023]
Abstract
Preserved rice (Oryza sativa L.) seeds stored for nearly a century as an emergency food stocks from the Mikawa area were investigated for their genetic diversity. Morphologically, the seeds appeared to be typical Japonica. One chloroplast INDEL petN-trnC, two nuclear INDELs Acp1 and Cat1, and three SNP markers in Starch synthase IIa were amplified to characterize the molecular profile. The efficiency of amplification varied among the markers. Most of preserved seeds were classified as Japonica, but some were identified as Indica. The heterozygous genotypes detected suggested a high frequency of outcrossing at that time. On the other hand, 21 SSR markers showed quite a high degree of amplification efficiency. Principal coordinate analysis and STRUCTURE analysis based on the SSR polymorphisms proved that the preserved seeds contained alleles that were not detected among current landraces and breeding varieties, and there were the expected three subpopulations among 96 preserved seeds. These results indicated that these preserved seeds from Mikawa area in Meiji era had high genetic diversity and consisted of some subpopulations including Indica landraces with typical Japonica seed shape. These lines were considered to have been lost from current genetic resources.
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Affiliation(s)
- Chiaki Muto
- Genetic Resources Center, National Agriculture and Food Research Organization (NARO), 2-1-2 Kannondai, Tsukuba, Ibaraki 305-8602, Japan
| | - Katsunori Tanaka
- Faculty of Agriculture and Life Science, Hirosaki University, 3 Bunkyo-cho, Hirosaki, Aomori 036-8561, Japan
| | - Hiroaki Tabuchi
- Miyakonojo Research Station, Kyushu Okinawa Agricultural Research Center, National Agriculture and Food Research Organization (NARO), Yokoichi-cho 6651-2, Miyakonojo, Miyazaki 885-0091, Japan
| | - Nobuyuki Kurauchi
- Department of International Development Studies, College of Bioresource Sciences, Nihon University, Fujisawa, Kanagawa 252-0880, Japan
| | - Yo-Ichiro Sato
- Research Institute for Humanity and Nature (RIHN), 457-4 Motoyama, Kamigamo, Kita-ku, Kyoto 603-8047, Japan
| | - Ryuji Ishikawa
- Faculty of Agriculture and Life Science, Hirosaki University, 3 Bunkyo-cho, Hirosaki, Aomori 036-8561, Japan
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Taddesse L, Fukuta Y, Ishikawa R. Genetic study of diversity and blast resistance in Ethiopian rice cultivars adapted to different ecosystems. BREEDING SCIENCE 2020; 70:303-312. [PMID: 32714052 PMCID: PMC7372019 DOI: 10.1270/jsbbs.18198] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/20/2018] [Accepted: 12/19/2019] [Indexed: 06/11/2023]
Abstract
Rice (Oryza sativa L.) has been considered one of the most important crops in Ethiopia. Landraces and improved accessions in Ethiopia were characterized on the basis of polymorphism data for SSR markers, and classified into two groups: I and II. Cluster I was further divided into two sub-clusters, Ia and Ib. Cluster Ia corresponded to Japonica-like type, Cluster Ib to Japonica type, and Cluster II to Indica type with some Indica-like type. Many landraces and improved varieties belonged to Cluster Ia. Superior landraces were included in Cluster Ib. Further categorization based on blast resistance demonstrated three groups: Clusters A, B1, and B2. Cluster A comprised accessions with relatively high resistance, whereas Clusters B1 and B2 included susceptible accessions. Most of the improved varieties were found in Cluster A. Superior landraces, X-Jigna classified into Ib or DNA type tended to be susceptible in Cluster B2 for blast resistance. These results demonstrated that traditional landraces preferred by farmers should be improved for disease resistance using blast-resistant varieties. In order to avoid hybrid sterility occurring in cross-hybridizing breeding between Indica and Japonica types, desirable parental accessions can be chosen within the same DNA cluster. The clustering information among accessions may be useful in breeding schemes for selection of counterparts in cross-breeding programs.
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Affiliation(s)
- Lakew Taddesse
- Fogera National Rice Research and Training Centre, Ethiopian Institute of Agricultural Research, 1937, Bahir Dar, Ethiopia
- United Graduate School of Agricultural Sciences, Iwate University, Morioka, Iwate 020-8550, Japan
| | - Yoshimichi Fukuta
- Tropical Agriculture Research Front (TARF), Japan International Research Center for Agricultural Sciences (JIRCAS), Ishigaki, Okinawa 907-0002, Japan
| | - Ryuji Ishikawa
- Faculty of Agriculture and Life Science, Hirosaki University, Hirosaki, Aomori 036-8561, Japan
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Segregation Distortion Observed in the Progeny of Crosses Between Oryza sativa and O. meridionalis Caused by Abortion During Seed Development. PLANTS 2019; 8:plants8100398. [PMID: 31597300 PMCID: PMC6843657 DOI: 10.3390/plants8100398] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/31/2019] [Revised: 09/28/2019] [Accepted: 10/03/2019] [Indexed: 12/14/2022]
Abstract
Wild rice relatives having the same AA genome as domesticated rice (Oryza sativa) comprise the primary gene pool for rice genetic improvement. Among them, O. meridionalis and O. rufipogon are found in the northern part of Australia. Three Australian wild rice strains, Jpn1 (O. rufipogon), Jpn2, and W1297 (O. meridionalis), and one cultivated rice cultivar Taichung 65 (T65) were used in this study. A recurrent backcrossing strategy was adopted to produce chromosomal segment substitution lines (CSSLs) carrying chromosomal segments from wild relatives and used for trait evaluation and genetic analysis. The segregation of the DNA marker RM136 locus on chromosome 6 was found to be highly distorted, and a recessive lethal gene causing abortion at the seed developmental stage was shown to be located between two DNA markers, KGC6_10.09 and KGC6_22.19 on chromosome 6 of W1297. We name this gene as SEED DEVELOPMENT 1 (gene symbol: SDV1). O. sativa is thought to share the functional dominant allele Sdv1-s (s for sativa), and O. meridionalis is thought to share the recessive abortive allele sdv1-m (m for meridionalis). Though carrying the sdv1-m allele, the O. meridionalis accessions can self-fertilize and bear seeds. We speculate that the SDV1 gene may have been duplicated before the divergence between O. meridionalis and the other AA genome Oryza species, and that O. meridionalis has lost the function of the SDV1 gene and has kept the function of another putative gene named SDV2.
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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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