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Lee SY, Lee G, Han J, Ha SK, Lee CM, Kang K, Jin M, Suh JP, Jeung JU, Mo Y, Lee HS. GWAS analysis reveals the genetic basis of blast resistance associated with heading date in rice. FRONTIERS IN PLANT SCIENCE 2024; 15:1412614. [PMID: 38835858 PMCID: PMC11148375 DOI: 10.3389/fpls.2024.1412614] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/05/2024] [Accepted: 05/06/2024] [Indexed: 06/06/2024]
Abstract
Rice blast is a destructive fungal disease affecting rice plants at various growth stages, significantly threatening global yield stability. Development of resistant rice cultivars stands as a practical means of disease control. Generally, association mapping with a diversity panel powerfully identifies new alleles controlling trait of interest. On the other hand, utilization of a breeding panel has its advantage that can be directly applied in a breeding program. In this study, we conducted a genome-wide association study (GWAS) for blast resistance using 296 commercial rice cultivars with low population structure but large phenotypic diversity. We attempt to answer the genetic basis behind rice blast resistance among early maturing cultivars by subdividing the population based on its Heading date 1 (Hd1) functionality. Subpopulation-specific GWAS using the mixed linear model (MLM) based on blast nursery screening conducted in three years revealed a total of 26 significant signals, including three nucleotide-binding site leucine-rich repeat (NBS-LRR) genes (Os06g0286500, Os06g0286700, and Os06g0287500) located at Piz locus on chromosome 6, and one at the Pi-ta locus (Os12g0281300) on chromosome 12. Haplotype analysis revealed blast resistance associated with Piz locus was exclusively specific to Type 14 hd1 among japonica rice. Our findings provide valuable insights for breeding blast resistant rice and highlight the applicability of our elite cultivar panel to detect superior alleles associated with important agronomic traits.
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Affiliation(s)
- Seung Young Lee
- Crop Breeding Division, National Institute of Crop Science, Rural Development Administration, Wanju, Republic of Korea
- Department of Crop Science and Biotechnology, Jeonbuk National University, Jeonju, Republic of Korea
| | - Gileung Lee
- Crop Breeding Division, National Institute of Crop Science, Rural Development Administration, Wanju, Republic of Korea
| | - Jiheon Han
- Department of Crop Science and Biotechnology, Jeonbuk National University, Jeonju, Republic of Korea
| | - Su-Kyung Ha
- Crop Breeding Division, National Institute of Crop Science, Rural Development Administration, Wanju, Republic of Korea
| | - Chang-Min Lee
- Crop Breeding Division, National Institute of Crop Science, Rural Development Administration, Wanju, Republic of Korea
| | - Kyeongmin Kang
- Crop Breeding Division, National Institute of Crop Science, Rural Development Administration, Wanju, Republic of Korea
| | - Mina Jin
- Crop Breeding Division, National Institute of Crop Science, Rural Development Administration, Wanju, Republic of Korea
| | - Jung-Pil Suh
- Crop Breeding Division, National Institute of Crop Science, Rural Development Administration, Wanju, Republic of Korea
| | - Ji-Ung Jeung
- Department of Southern Area Crop Science, National Institute of Crop Science, Rural Development Administration, Miryang, Republic of Korea
| | - Youngjun Mo
- Department of Crop Science and Biotechnology, Jeonbuk National University, Jeonju, Republic of Korea
- Institute of Agricultural Science and Technology, Jeonbuk National University, Jeonju, Republic of Korea
| | - Hyun-Sook Lee
- Crop Breeding Division, National Institute of Crop Science, Rural Development Administration, Wanju, Republic of Korea
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Lei Y, Zhang Y, Xu L, Ma W, Zhou Z, Li J, Quan P, Faruquee M, Yang D, Zhang F, Zhou Y, Quan G, Zhao X, Wang W, Liu B, Li Z, Xu J, Zheng T. Pedigree genome data of an early-matured Geng/japonica glutinous rice mega variety Longgeng 57. Sci Data 2024; 11:230. [PMID: 38388638 PMCID: PMC10884013 DOI: 10.1038/s41597-024-03057-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2023] [Accepted: 02/08/2024] [Indexed: 02/24/2024] Open
Abstract
By using PacBio HiFi technology, we produced over 700 Gb of long-read sequencing (LRS) raw data; and by using Illumina paired-end whole-genome shotgun (WGS) sequencing technology, we generated more than 70 Gb of short-read sequencing (SRS) data. With LRS data, we assembled one genome and then generate a set of annotation data for an early-matured Geng/japonica glutinous rice mega variety genome, Longgeng 57 (LG57), which carries multiple elite traits including good grain quality and wide adaptability. Together with the SRS data from three parents of LG57, pedigree genome variations were called for three representative types of genes. These data sets can be used for deep variation mining, aid in the discovery of new insights into genome structure, function, and evolution, and help to provide essential support to biological research in general.
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Affiliation(s)
- Yuanbao Lei
- Jiamusi Rice Research Institute of Heilongjiang Academy of Agricultural Sciences, Jiamusi, 154026, China
- Institute of Crop Sciences/State Key Laboratory of Crop Gene Resources and Breeding/National Key Facility for Crop Gene Resources and Genetic Improvement, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
- Rice Research Institute, Guangxi Academy of Agricultural Sciences, Nanning, 530007, China
| | - Yunjiang Zhang
- Jiamusi Rice Research Institute of Heilongjiang Academy of Agricultural Sciences, Jiamusi, 154026, China
| | - Linyun Xu
- Institute of Crop Sciences/State Key Laboratory of Crop Gene Resources and Breeding/National Key Facility for Crop Gene Resources and Genetic Improvement, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Wendong Ma
- Jiamusi Rice Research Institute of Heilongjiang Academy of Agricultural Sciences, Jiamusi, 154026, China
| | - Ziqi Zhou
- Institute of Crop Sciences/State Key Laboratory of Crop Gene Resources and Breeding/National Key Facility for Crop Gene Resources and Genetic Improvement, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Jie Li
- Heilongjiang Lianjiangkou Seed Co., Ltd, Jiamusi, 154024, China
| | - Pengyu Quan
- Heilongjiang Lianjiangkou Seed Co., Ltd, Jiamusi, 154024, China
| | - Muhiuddin Faruquee
- International Rice Research Institute, Bangladesh Office, Dhaka, 1213, Bangladesh
| | - Dechen Yang
- Institute of Crop Sciences/State Key Laboratory of Crop Gene Resources and Breeding/National Key Facility for Crop Gene Resources and Genetic Improvement, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
- National Nanfan Research Institute, Chinese Academy of Agricultural Sciences, Sanya, 572024, China
| | - Fan Zhang
- Institute of Crop Sciences/State Key Laboratory of Crop Gene Resources and Breeding/National Key Facility for Crop Gene Resources and Genetic Improvement, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Yongli Zhou
- Institute of Crop Sciences/State Key Laboratory of Crop Gene Resources and Breeding/National Key Facility for Crop Gene Resources and Genetic Improvement, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Guangjun Quan
- Heilongjiang Lianjiangkou Seed Co., Ltd, Jiamusi, 154024, China
| | - Xiuqin Zhao
- Institute of Crop Sciences/State Key Laboratory of Crop Gene Resources and Breeding/National Key Facility for Crop Gene Resources and Genetic Improvement, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Wensheng Wang
- Institute of Crop Sciences/State Key Laboratory of Crop Gene Resources and Breeding/National Key Facility for Crop Gene Resources and Genetic Improvement, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
- National Nanfan Research Institute, Chinese Academy of Agricultural Sciences, Sanya, 572024, China
| | - Bailong Liu
- Rice Research Institute, Guangxi Academy of Agricultural Sciences, Nanning, 530007, China
| | - Zhikang Li
- Institute of Crop Sciences/State Key Laboratory of Crop Gene Resources and Breeding/National Key Facility for Crop Gene Resources and Genetic Improvement, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Jianlong Xu
- Institute of Crop Sciences/State Key Laboratory of Crop Gene Resources and Breeding/National Key Facility for Crop Gene Resources and Genetic Improvement, Chinese Academy of Agricultural Sciences, Beijing, 100081, China.
- National Nanfan Research Institute, Chinese Academy of Agricultural Sciences, Sanya, 572024, China.
- Hainan Yazhou Bay Seed Lab, Sanya, 572024, China.
| | - Tianqing Zheng
- Institute of Crop Sciences/State Key Laboratory of Crop Gene Resources and Breeding/National Key Facility for Crop Gene Resources and Genetic Improvement, Chinese Academy of Agricultural Sciences, Beijing, 100081, China.
- National Nanfan Research Institute, Chinese Academy of Agricultural Sciences, Sanya, 572024, China.
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3
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Sun K, Zong W, Xiao D, Wu Z, Guo X, Li F, Song Y, Li S, Wei G, Hao Y, Xu B, Li W, Lin Z, Xie W, Liu YG, Guo J. Effects of the core heading date genes Hd1, Ghd7, DTH8, and PRR37 on yield-related traits in rice. TAG. THEORETICAL AND APPLIED GENETICS. THEORETISCHE UND ANGEWANDTE GENETIK 2023; 136:227. [PMID: 37851149 DOI: 10.1007/s00122-023-04476-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/22/2023] [Accepted: 10/04/2023] [Indexed: 10/19/2023]
Abstract
KEY MESSAGE We clarify the influence of the genotypes of the heading date genes Hd1, Ghd7, DTH8, and PRR37 and their combinations on yield-related traits and the functional differences between different haplotypes. Heading date is a key agronomic trait in rice (Oryza sativa L.) that determines yield and adaptability to different latitudes. Heading date 1 (Hd1), Grain number, plant height, and heading date 7 (Ghd7), Days to heading on chromosome 8 (DTH8), and PSEUDO-RESPONSE REGULATOR 37 (PRR37) are core rice genes controlling photoperiod sensitivity, and these genes have many haplotypes in rice cultivars. However, the effects of different haplotypes at these genes on yield-related traits in diverse rice materials remain poorly characterized. In this study, we knocked out Hd1, Ghd7, DTH8, or PRR37, alone or together, in indica and japonica varieties and systematically investigated the agronomic traits of each knockout line. Ghd7 and PRR37 increased the number of spikelets and improved yield, and this effect was enhanced with the Ghd7 DTH8 or Ghd7 PRR37 combination, but Hd1 negatively affected yield. We also identified a new weak functional Ghd7 allele containing a mutation that interferes with splicing. Furthermore, we determined that the promotion or inhibition of heading date by different PRR37 haplotypes is related to PRR37 expression levels, day length, and the genetic background. For rice breeding, a combination of functional alleles of Ghd7 and DTH8 or Ghd7 and PRR37 in the hd1 background can be used to increase yield. Our study clarifies the effects of heading date genes on yield-related traits and the functional differences among their different haplotypes, providing valuable information to identify and exploit elite haplotypes for heading date genes to breed high-yielding rice varieties.
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Affiliation(s)
- Kangli Sun
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Guangdong Laboratory for Lingnan Modern Agriculture, College of Life Sciences, South China Agricultural University, Guangzhou, 510642, China
| | - Wubei Zong
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Guangdong Laboratory for Lingnan Modern Agriculture, College of Life Sciences, South China Agricultural University, Guangzhou, 510642, China
| | - Dongdong Xiao
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Guangdong Laboratory for Lingnan Modern Agriculture, College of Life Sciences, South China Agricultural University, Guangzhou, 510642, China
| | - Zeqiang Wu
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Guangdong Laboratory for Lingnan Modern Agriculture, College of Life Sciences, South China Agricultural University, Guangzhou, 510642, China
| | - Xiaotong Guo
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Guangdong Laboratory for Lingnan Modern Agriculture, College of Life Sciences, South China Agricultural University, Guangzhou, 510642, China
| | - Fuquan Li
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Guangdong Laboratory for Lingnan Modern Agriculture, College of Life Sciences, South China Agricultural University, Guangzhou, 510642, China
| | - Yingang Song
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Guangdong Laboratory for Lingnan Modern Agriculture, College of Life Sciences, South China Agricultural University, Guangzhou, 510642, China
| | - Shengting Li
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Guangdong Laboratory for Lingnan Modern Agriculture, College of Life Sciences, South China Agricultural University, Guangzhou, 510642, China
| | - Guangliang Wei
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Guangdong Laboratory for Lingnan Modern Agriculture, College of Life Sciences, South China Agricultural University, Guangzhou, 510642, China
| | - Yu Hao
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Guangdong Laboratory for Lingnan Modern Agriculture, College of Life Sciences, South China Agricultural University, Guangzhou, 510642, China
| | - Bingqun Xu
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Guangdong Laboratory for Lingnan Modern Agriculture, College of Life Sciences, South China Agricultural University, Guangzhou, 510642, China
| | - Weitao Li
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Guangdong Laboratory for Lingnan Modern Agriculture, College of Life Sciences, South China Agricultural University, Guangzhou, 510642, China
| | - Zhiwei Lin
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Guangdong Laboratory for Lingnan Modern Agriculture, College of Life Sciences, South China Agricultural University, Guangzhou, 510642, China
| | - Wenhao Xie
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Guangdong Laboratory for Lingnan Modern Agriculture, College of Life Sciences, South China Agricultural University, Guangzhou, 510642, China
| | - Yao-Guang Liu
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Guangdong Laboratory for Lingnan Modern Agriculture, College of Life Sciences, South China Agricultural University, Guangzhou, 510642, China
| | - Jingxin Guo
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Guangdong Laboratory for Lingnan Modern Agriculture, College of Life Sciences, South China Agricultural University, Guangzhou, 510642, China.
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Jadamba C, Vea RL, Ryu JH, Paek NC, Jang S, Chin JH, Yoo SC. GWAS analysis to elucidate genetic composition underlying a photoperiod-insensitive rice population, North Korea. Front Genet 2022; 13:1036747. [PMID: 36568369 PMCID: PMC9768348 DOI: 10.3389/fgene.2022.1036747] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2022] [Accepted: 10/13/2022] [Indexed: 12/12/2022] Open
Abstract
Heading date (Hd) is one of the main factors determining rice production and regional adaptation. To identify the genetic factors involved in the wide regional adaptability of rice, we conducted a genome-wide association study (GWAS) with 190 North Korean rice accessions selected for non-precocious flowering in the Philippines, a low-latitude region. Using both linear mixed models (LMM) and fixed and random model circulating probability unification (FarmCPU), we identified five significant loci for Hd in trials in 2018 and 2019. Among the five lead single nucleotide polymorphisms (SNPs), three were located adjacent to the known Hd genes, Heading date 3a (Hd3a), Heading date 5 (Hd5), and GF14-c. In contrast, three SNPs were located in novel loci with minor effects on heading. Further GWAS analysis for photoperiod insensitivity (PS) revealed no significant genes associated with PS, supporting that this North Korean (NK) population is largely photoperiod-insensitive. Haplotyping analysis showed that more than 80% of the NK varieties harbored nonfunctional alleles of major Hd genes investigated, of which a nonfunctional allele of Heading date 1 (Hd1) was observed in 66% of the varieties. Geographical distribution analysis of Hd allele combination types showed that nonfunctional alleles of floral repressor Hd genes enabled rice cultivation in high-latitude regions. In contrast, Hd1 alleles largely contributed to the wide regional adaptation of rice varieties. In conclusion, an allelic combination of Hd genes is critical for rice cultivation across wide areas.
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Affiliation(s)
- Chuluuntsetseg Jadamba
- Crop Molecular Breeding Laboratory, Department of Plant Life and Environmental Science, Hankyong National University, Anseong, South Korea
| | - Richie L. Vea
- Bureau of Plant Industry, National Seed Quality Control Services, San Mateo, Isabela Philippines
| | - Jung-Hoon Ryu
- Crop Molecular Breeding Laboratory, Department of Plant Life and Environmental Science, Hankyong National University, Anseong, South Korea
| | - Nam-Chon Paek
- Department of Plant Science, Plant Genomics and Breeding Institute, Research Institute of Agriculture and Life Sciences, Seoul National University, Seoul, South Korea
| | - Su Jang
- Department of Plant Science, Plant Genomics and Breeding Institute, Research Institute of Agriculture and Life Sciences, Seoul National University, Seoul, South Korea
| | - Joong Hyoun Chin
- Department of Integrative Biological Sciences and Industry, Sejong University, Seoul, South Korea,*Correspondence: Joong Hyoun Chin, ; Soo-Cheul Yoo,
| | - Soo-Cheul Yoo
- Crop Molecular Breeding Laboratory, Department of Plant Life and Environmental Science, Hankyong National University, Anseong, South Korea,Carbon-Neutral Resources Research Center, Hankyong National University, Seoul, South Korea,*Correspondence: Joong Hyoun Chin, ; Soo-Cheul Yoo,
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5
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Genome-Wide Association Analysis for Hybrid Breeding in Wheat. Int J Mol Sci 2022; 23:ijms232315321. [PMID: 36499647 PMCID: PMC9740285 DOI: 10.3390/ijms232315321] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2022] [Revised: 11/24/2022] [Accepted: 11/27/2022] [Indexed: 12/12/2022] Open
Abstract
Disclosure of markers that are significantly associated with plant traits can help develop new varieties with desirable properties. This study determined the genome-wide associations based on DArTseq markers for six agronomic traits assessed in eight environments for wheat. Moreover, the association study for heterosis and analysis of the effects of markers grouped by linkage disequilibrium were performed based on mean values over all experiments. All results were validated using data from post-registration trials. GWAS revealed 1273 single nucleotide polymorphisms with biologically significant effects. Most polymorphisms were predicted to be modifiers of protein translation, with only two having a more pronounced effect. Markers significantly associated with the considered set of features were clustered within chromosomes based on linkage disequilibrium in 327 LD blocks. A GWAS for heterosis revealed 1261 markers with significant effects.
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Izawa T. Reloading DNA History in Rice Domestication. PLANT & CELL PHYSIOLOGY 2022; 63:1529-1539. [PMID: 35656860 PMCID: PMC9680854 DOI: 10.1093/pcp/pcac073] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/02/2022] [Revised: 04/14/2022] [Accepted: 06/02/2022] [Indexed: 06/15/2023]
Abstract
Although crop domestication is a prehistoric event, DNA (or genome) sequences of modern cultivars and the accession lines of wild relatives contain information regarding the history of crop domestication and the breeding process. Accordingly, with plentiful genomic data, many new findings have been obtained concerning the crop domestication process, for which various (some controversial) interpretations exist. Since approximately 20 years ago, dozens of quantitative trait genes (QTGs) related to the domestication process have been cloned from several crops including rice, a global staple food. However, the determination of how and when these QTGs were involved in rice domestication requires a precise understanding of the DNA code. In addition to the identification of domestication-related QTGs, large-scale rice genome analysis based on short-read Illumina data (but with shallow depth) including more than 1,000 rice cultivars and hundreds of wild rice (or Oryza rufipogon) lines, along with extensive genome analysis including more than 3,000 cultivars with sufficient Illumina data, has been reported. From these data, the genome-wide changes during rice domestication have been explained. However, these genome-wide changes were not interpreted based on QTG changes for domestication-related traits during rice domestication. In addition, a substantial gap remains between the archeological hypothesis based on ancient relics and findings from DNA variations among current cultivars. Thus, this review reconsiders the present status of rice domestication research from a biologist's perspective.
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Effect of Heading Date on the Starch Structure and Grain Yield of Rice Lines with Low Gelatinization Temperature. Int J Mol Sci 2022; 23:ijms231810783. [PMID: 36142691 PMCID: PMC9502985 DOI: 10.3390/ijms231810783] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2022] [Revised: 09/12/2022] [Accepted: 09/13/2022] [Indexed: 11/24/2022] Open
Abstract
Early flowering trait is essential for rice cultivars grown at high latitude since delayed flowering leads to seed development at low temperature, which decreases yield. However, early flowering at high temperature promotes the formation of chalky seeds with low apparent amylose content and high starch gelatinization temperature, thus affecting grain quality. Deletion of starch synthase IIa (SSIIa) shows inverse effects of high temperature, and the ss2a mutant shows higher apparent amylose content and lower gelatinization temperature. Heading date 1 (Hd1) is the major regulator of flowering time, and a nonfunctional hd1 allele is required for early flowering. To understand the relationship among heading date, starch properties, and yield, we generated and characterized near-isogenic rice lines with ss2a Hd1, ss2a Hd1 hd1, and ss2a hd1 genotypes. The ss2a Hd1 line showed the highest plant biomass; however, its grain yield varied by year. The ss2a Hd1 hd1 showed higher total grain weight than ss2a hd1. The ss2a hd1 line produced the lowest number of premature seeds and showed higher gelatinization temperature and lower apparent amylose content than ss2a Hd1. These results highlight Hd1 as the candidate gene for developing high-yielding rice cultivars with the desired starch structure.
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Lee SJ, Kang K, Lim JH, Paek NC. Natural alleles of CIRCADIAN CLOCK ASSOCIATED1 contribute to rice cultivation by fine-tuning flowering time. PLANT PHYSIOLOGY 2022; 190:640-656. [PMID: 35723564 PMCID: PMC9434239 DOI: 10.1093/plphys/kiac296] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2022] [Accepted: 05/26/2022] [Indexed: 05/11/2023]
Abstract
The timing of flowering is a crucial factor for successful grain production at a wide range of latitudes. Domestication of rice (Oryza sativa) included selection for natural alleles of flowering-time genes that allow rice plants to adapt to broad geographic areas. Here, we describe the role of natural alleles of CIRCADIAN CLOCK ASSOCIATED1 (OsCCA1) in cultivated rice based on analysis of single-nucleotide polymorphisms deposited in the International Rice Genebank Collection Information System database. Rice varieties harboring japonica-type OsCCA1 alleles (OsCCA1a haplotype) flowered earlier than those harboring indica-type OsCCA1 alleles (OsCCA1d haplotype). In the japonica cultivar "Dongjin", a T-DNA insertion in OsCCA1a resulted in late flowering under long-day and short-day conditions, indicating that OsCCA1 is a floral inducer. Reverse transcription quantitative PCR analysis showed that the loss of OsCCA1a function induces the expression of the floral repressors PSEUDO-RESPONSE REGULATOR 37 (OsPRR37) and Days to Heading 8 (DTH8), followed by repression of the Early heading date 1 (Ehd1)-Heading date 3a (Hd3a)-RICE FLOWERING LOCUS T 1 (RFT1) pathway. Binding affinity assays indicated that OsCCA1 binds to the promoter regions of OsPRR37 and DTH8. Naturally occurring OsCCA1 alleles are evolutionarily conserved in cultivated rice (O. sativa). Oryza rufipogon-I (Or-I) and Or-III type accessions, representing the ancestors of O. sativa indica and japonica, harbored indica- and japonica-type OsCCA1 alleles, respectively. Taken together, our results demonstrate that OsCCA1 is a likely domestication locus that has contributed to the geographic adaptation and expansion of cultivated rice.
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Affiliation(s)
| | | | - Jung-Hyun Lim
- Department of Agriculture, Forestry and Bioresources, Plant Genomics and Breeding Institute, Research Institute of Agriculture and Life Sciences, Seoul National University, Seoul 08826, South Korea
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Awal Khan MA, Zhang S, Emon RM, Chen F, Song W, Wu T, Yuan S, Wu C, Hou W, Sun S, Fu Y, Jiang B, Han T. CONSTANS Polymorphism Modulates Flowering Time and Maturity in Soybean. FRONTIERS IN PLANT SCIENCE 2022; 13:817544. [PMID: 35371153 PMCID: PMC8969907 DOI: 10.3389/fpls.2022.817544] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/18/2021] [Accepted: 02/15/2022] [Indexed: 06/01/2023]
Abstract
CONSTANS (CO) plays a critical role in the photoperiodic flowering pathway. However, the function of soybean CO orthologs and the molecular mechanisms in regulating flowering remain largely unknown. This study characterized the natural variations in CO family genes and their association with flowering time and maturity in soybeans. A total of 21 soybean CO family genes (GmCOLs) were cloned and sequenced in 128 varieties covering 14 known maturity groups (MG 0000-MG X from earliest to latest maturity). Regarding the whole genomic region involving these genes, GmCOL1, GmCOL3, GmCOL8, GmCOL9, GmCOL10, and GmCOL13 were conserved, and the remaining 15 genes showed genetic variation that was brought about by mutation, namely, all single-nucleotide polymorphisms (SNPs) and insertions-deletions (InDels). In addition, a few genes showed some strong linkage disequilibrium. Point mutations were found in 15 GmCOL genes, which can lead to changes in the potential protein structure. Early flowering and maturation were related to eight genes (GmCOL1/3/4/8/13/15/16/19). For flowering and maturation, 11 genes (GmCOL2/5/6/14/20/22/23/24/25/26/28) expressed divergent physiognomy. Haplotype analysis indicated that the haplotypes of GmCOL5-Hap2, GmCOL13-Hap2/3, and GmCOL28-Hap2 were associated with flowering dates and soybean maturity. This study helps address the role of GmCOL family genes in adapting to diverse environments, particularly when it is necessary to regulate soybean flowering dates and maturity.
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Affiliation(s)
- Mohammad Abdul Awal Khan
- MARA Key Laboratory of Soybean Biology (Beijing), Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Shouwei Zhang
- MARA Key Laboratory of Soybean Biology (Beijing), Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Reza Mohammad Emon
- MARA Key Laboratory of Soybean Biology (Beijing), Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, China
- Plant Breeding Division, Bangladesh Institute of Nuclear Agriculture, Mymensingh, Bangladesh
| | - Fulu Chen
- MARA Key Laboratory of Soybean Biology (Beijing), Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Wenwen Song
- MARA Key Laboratory of Soybean Biology (Beijing), Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Tingting Wu
- MARA Key Laboratory of Soybean Biology (Beijing), Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Shan Yuan
- MARA Key Laboratory of Soybean Biology (Beijing), Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Cunxiang Wu
- MARA Key Laboratory of Soybean Biology (Beijing), Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Wensheng Hou
- MARA Key Laboratory of Soybean Biology (Beijing), Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Shi Sun
- MARA Key Laboratory of Soybean Biology (Beijing), Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Yongfu Fu
- MARA Key Laboratory of Soybean Biology (Beijing), Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Bingjun Jiang
- MARA Key Laboratory of Soybean Biology (Beijing), Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Tianfu Han
- MARA Key Laboratory of Soybean Biology (Beijing), Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, China
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Mo Y, Lee CM, Park HM, Ha SK, Kim MJ, Kwak J, Lee HS, Lee JH, Jeung JU. Hd1 Allele Types and Their Associations with Major Agronomic Traits in Korean Rice Cultivars. PLANTS (BASEL, SWITZERLAND) 2021; 10:plants10112408. [PMID: 34834770 PMCID: PMC8619422 DOI: 10.3390/plants10112408] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/14/2021] [Revised: 11/03/2021] [Accepted: 11/05/2021] [Indexed: 06/13/2023]
Abstract
Optimizing flowering time in crop plants is critical for maximizing yield and quality under target environments. While there is a wide range of heading date variation in Korean rice cultivars, the underlying gene mechanisms are unclear. Here, we sequenced the protein coding regions of Hd1, the major rice heading date gene, from 293 Korean rice cultivars and investigated the associations between Hd1 allele types and major agronomic traits under four different environments. There were four functional Hd1 and five nonfunctional hd1 alleles distributed among the 293 Korean rice cultivars. The effects of the Hd1 allele types were highly significant for days to heading in all four environments, explaining 51.4-65.8% of the phenotypic variation. On average, cultivars carrying nonfunctional hd1 headed 13.7 days earlier than those carrying functional Hd1. While the Hd1 allele types exhibited highly significant effects on culm length and protein content under all four environments, the differences between cultivars carrying Hd1 and hd1 were minimal. The effects of the Hd1 allele types on amylose content were significant in only one of the four environments. Our results provide useful information for fine-tuning rice heading dates by utilizing different Hd1 alleles in rice breeding programs.
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Affiliation(s)
- Youngjun Mo
- National Institute of Crop Science, Rural Development Administration, Wanju 55365, Korea; (Y.M.); (C.-M.L.); (H.-M.P.); (S.-K.H.); (M.-J.K.); (J.K.); (H.-S.L.); (J.-H.L.)
- Department of Crop Science and Biotechnology, Jeonbuk National University, Jeonju 54896, Korea
| | - Chang-Min Lee
- National Institute of Crop Science, Rural Development Administration, Wanju 55365, Korea; (Y.M.); (C.-M.L.); (H.-M.P.); (S.-K.H.); (M.-J.K.); (J.K.); (H.-S.L.); (J.-H.L.)
- Department of Crop Science and Biotechnology, Jeonbuk National University, Jeonju 54896, Korea
| | - Hyang-Mi Park
- National Institute of Crop Science, Rural Development Administration, Wanju 55365, Korea; (Y.M.); (C.-M.L.); (H.-M.P.); (S.-K.H.); (M.-J.K.); (J.K.); (H.-S.L.); (J.-H.L.)
| | - Su-Kyung Ha
- National Institute of Crop Science, Rural Development Administration, Wanju 55365, Korea; (Y.M.); (C.-M.L.); (H.-M.P.); (S.-K.H.); (M.-J.K.); (J.K.); (H.-S.L.); (J.-H.L.)
| | - Mi-Jung Kim
- National Institute of Crop Science, Rural Development Administration, Wanju 55365, Korea; (Y.M.); (C.-M.L.); (H.-M.P.); (S.-K.H.); (M.-J.K.); (J.K.); (H.-S.L.); (J.-H.L.)
| | - Jieun Kwak
- National Institute of Crop Science, Rural Development Administration, Wanju 55365, Korea; (Y.M.); (C.-M.L.); (H.-M.P.); (S.-K.H.); (M.-J.K.); (J.K.); (H.-S.L.); (J.-H.L.)
| | - Hyun-Sook Lee
- National Institute of Crop Science, Rural Development Administration, Wanju 55365, Korea; (Y.M.); (C.-M.L.); (H.-M.P.); (S.-K.H.); (M.-J.K.); (J.K.); (H.-S.L.); (J.-H.L.)
| | - Jeong-Heui Lee
- National Institute of Crop Science, Rural Development Administration, Wanju 55365, Korea; (Y.M.); (C.-M.L.); (H.-M.P.); (S.-K.H.); (M.-J.K.); (J.K.); (H.-S.L.); (J.-H.L.)
| | - Ji-Ung Jeung
- National Institute of Crop Science, Rural Development Administration, Wanju 55365, Korea; (Y.M.); (C.-M.L.); (H.-M.P.); (S.-K.H.); (M.-J.K.); (J.K.); (H.-S.L.); (J.-H.L.)
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Ji H, Shin Y, Lee C, Oh H, Yoon IS, Baek J, Cha YS, Lee GS, Kim SL, Kim KH. Genomic Variation in Korean japonica Rice Varieties. Genes (Basel) 2021; 12:genes12111749. [PMID: 34828355 PMCID: PMC8623644 DOI: 10.3390/genes12111749] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2021] [Revised: 10/24/2021] [Accepted: 10/28/2021] [Indexed: 11/27/2022] Open
Abstract
Next-generation sequencing technologies have enabled the discovery of numerous sequence variations among closely related crop varieties. We analyzed genome resequencing data from 24 Korean temperate japonica rice varieties and discovered 954,233 sequence variations, including 791,121 single nucleotide polymorphisms (SNPs) and 163,112 insertions/deletions (InDels). On average, there was one variant per 391 base-pairs (bp), a variant density of 2.6 per 1 kbp. Of the InDels, 10,860 were longer than 20 bp, which enabled conversion to markers resolvable on an agarose gel. The effect of each variant on gene function was predicted using the SnpEff program. The variants were categorized into four groups according to their impact: high, moderate, low, and modifier. These groups contained 3524 (0.4%), 27,656 (2.9%), 24,875 (2.6%), and 898,178 (94.1%) variants, respectively. To test the accuracy of these data, eight InDels from a pre-harvest sprouting resistance QTL (qPHS11) target region, four highly polymorphic InDels, and four functional sequence variations in known agronomically important genes were selected and successfully developed into markers. These results will be useful to develop markers for marker-assisted selection, to select candidate genes in map-based cloning, and to produce efficient high-throughput genome-wide genotyping systems for Korean temperate japonica rice varieties.
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12
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Transcriptome analysis of flowering regulation by sowing date in Japonica Rice (Oryza sativa L.). Sci Rep 2021; 11:15026. [PMID: 34294838 PMCID: PMC8298600 DOI: 10.1038/s41598-021-94552-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2021] [Accepted: 07/12/2021] [Indexed: 11/08/2022] Open
Abstract
Hybrid japonica cultivars, such as the Yongyou series, have shown high yield potential in the field in both the early and late growing seasons. Moreover, understanding the responses of rice flowering dates to temperature and light is critical for improving yield performance. However, few studies have analyzed flowering genes in high-yielding japonica cultivars. Based on the five sowing date experiments from 2019 to 2020, select the sensitive cultivar Yongyou 538 and the insensitive cultivar Ninggeng 4 and take their flag leaves and panicles for transcriptome analysis. The results showed that compared with sowing date 1 (6/16), after the sowing date was postponed (sowing date 5, 7/9), 4480 and 890 differentially expressed genes (DEGs) were detected in the leaves and panicles in Ninggeng 4, 9275 and 2475 DEGs were detected in the leaves and panicles in Yongyou 538, respectively. KEGG pathway analysis showed that both Ninggeng 4 and Yongyou 538 regulated rice flowering through the plant circadian rhythm and plant hormone signal transduction pathways. Gene expression analysis showed that Os01g0566050 (OsELF3-2), Os01g0182600 (OsGI), Os11g0547000 (OsFKF1), Os06g0275000 (Hd1), and Os09g0513500 (FT-1) were expressed higher and Os02g0771100 (COP1-1) was expressed lower in Yongyou 538 compared with Ninggeng 4 as the climate conditions changed, which may be the key genes that regulate the flowering process with the change of temperature and light resources in sensitive cultivar Yongyou 538 in the late season.
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Ortiz R. Göte Turesson's research legacy to Hereditas: from the ecotype concept in plants to the analysis of landraces' diversity in crops. Hereditas 2020; 157:44. [PMID: 33160399 PMCID: PMC7648933 DOI: 10.1186/s41065-020-00159-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Accepted: 10/28/2020] [Indexed: 11/10/2022] Open
Abstract
Hereditas began with articles on plants since its first issue in May 1920 (six out of eight) and continued with more original articles (43% of the total of this journal) on plants (of which 72% of those in plants were on crops) until today. In December 1922, the 140-page article The Genotypical Response of the Plant Species to the Habitat by evolutionary botanist Göte Turesson (Institute of Genetics, Lund University, Åkarp, Sweden) became available. This publication shows that plant phenology has a genetic basis and may ensue from local adaptation. As a result of this research involving various plant species, Turesson elaborated further in this article his term ecotype "as an ecological sub-unit to cover the product arising as a result of the genotypical response of an ecospecies to a particular habitat." Although plant articles included in Hereditas involved from its beginning, trait inheritance, mutants, linkage analysis, cytology or cytogenetics, and more recently gene mapping and analysis of quantitative trait loci with the aid of DNA markers, among others, since the mid-1980s several publications refer to the population biology of plant landraces, which are locally grown cultivars that evolved over time by adapting to their natural and cultural environment (i.e., agriculture), and that may become isolated from other populations of the same crop. This article provides a briefing about research on plant science in the journal with emphasis on crops, summarizes the legacy to genetics of Göte Turesson, and highlights some landrace diversity research results and their potential for plant breeding.
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Affiliation(s)
- Rodomiro Ortiz
- Department of Plant Breeding, Swedish University of Agricultural Sciences, Sundsvagen 10 Box 101, SE 23053, Alnarp, Sweden.
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