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Li F, Sayama T, Yokota Y, Hiraga S, Hashiguchi M, Tanaka H, Akashi R, Ishimoto M. Assessing genetic diversity and geographical differentiation in a global collection of wild soybean (Glycine soja Sieb. et Zucc.) and assigning a mini-core collection. DNA Res 2024:dsae009. [PMID: 38490815 DOI: 10.1093/dnares/dsae009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2023] [Indexed: 03/17/2024] Open
Abstract
Wild soybean (Glycine soja), the ancestor of the cultivated soybean (G. max), is a crucial resource for capturing the genetic diversity of soybean species. In this study, we used a set of 78 genome-wide microsatellite markers to analyze the genetic diversity and geographic differentiation patterns in a global collection of 2,050 G. soja accessions and a mini-core collection of G. max stored in two public seed banks. We observed a notable reduction in the genetic diversity of G. max compared to G. soja and identified a close phylogenetic relationship between G. max and a G. soja subpopulation located in central China. Furthermore, we revealed substantial genetic divergence between northern and southern subpopulations, accompanied by diminished genetic diversity in the northern subpopulations. Two clusters were discovered among the accessions from north-eastern China-one genetically close to those from South Korea and southern Japan, and another close to those from Amur Oblast, Russia. Finally, 192 accessions were assigned to a mini-core collection of G. soja, retaining 73.8% of the alleles detected in the entire collection. This mini-core collection is accessible to those who need it, facilitating efficient evaluation and utilization of G. soja genetic resources in soybean breeding initiatives.
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Affiliation(s)
- Feng Li
- Institute of Crop Science, National Agricultural and Food Research Organization (NARO), 2-1-2 Kannondai, Tsukuba, Ibaraki, 305-8602, Japan
| | - Takashi Sayama
- Institute of Crop Science, National Agricultural and Food Research Organization (NARO), 2-1-2 Kannondai, Tsukuba, Ibaraki, 305-8602, Japan
- Western Region Agricultural Research Center, NARO, 1-3-1 Senyu-cho, Zentsuji, Kagawa, 765-8508, Japan
| | - Yuko Yokota
- Institute of Crop Science, National Agricultural and Food Research Organization (NARO), 2-1-2 Kannondai, Tsukuba, Ibaraki, 305-8602, Japan
| | - Susumu Hiraga
- Institute of Crop Science, National Agricultural and Food Research Organization (NARO), 2-1-2 Kannondai, Tsukuba, Ibaraki, 305-8602, Japan
| | - Masatsugu Hashiguchi
- Faculty of Agriculture, University of Miyazaki, Gakuen-kibanadai-nishi-1-1, Miyazaki, 889-2192, Japan
- Faculty of Regional Innovation, University of Miyazaki, Gakuen-kibanadai-nishi-1-1, Miyazaki, 889-2192, Japan
| | - Hidenori Tanaka
- Faculty of Agriculture, University of Miyazaki, Gakuen-kibanadai-nishi-1-1, Miyazaki, 889-2192, Japan
| | - Ryo Akashi
- Faculty of Agriculture, University of Miyazaki, Gakuen-kibanadai-nishi-1-1, Miyazaki, 889-2192, Japan
| | - Masao Ishimoto
- Institute of Crop Science, National Agricultural and Food Research Organization (NARO), 2-1-2 Kannondai, Tsukuba, Ibaraki, 305-8602, Japan
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Komatsu K, Sayama T, Yamashita KI, Takada Y. Mutant Tof11 alleles are highly accumulated in early planting-adaptable Japanese summer type soybeans. Breed Sci 2023; 73:322-331. [PMID: 37840974 PMCID: PMC10570879 DOI: 10.1270/jsbbs.22098] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/19/2022] [Accepted: 04/12/2023] [Indexed: 10/17/2023]
Abstract
To avoid crop failure because of climate change, soybean (Glycine max (L.) Merrill) cultivars adaptable to early planting are required in western Japan. Because current Japanese cultivars may not be adaptable, genetic resources with high early-planting adaptability, and their genetic information must be developed. In the present study, summer type (ST) soybeans developed for early planting were used as plant materials. We examined their phenological characteristics and short reproductive period as an indicator of early planting adaptability and performed genetic studies. Biparental quantitative trait loci (QTL) analysis of a representative ST cultivar revealed a principal QTL for the reproductive period duration on chromosome 11. The results of resequencing analysis suggested that circadian clock-related Tof11 (soybean orthologue of PRR3) is a candidate QTL. Additionally, all 25 early planting-adaptable germplasms evaluated in this study possessed mutant alleles in Tof11, whereas 15 conventional cultivars only had wild-type alleles. These results suggest that mutant alleles in Tof11 are important genetic factors in the high adaptability to early planting of these soybeans, and thus, these alleles were acquired and accumulated in the ST soybean population.
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Affiliation(s)
- Kunihiko Komatsu
- Western Region Agricultural Research Center (Kinki, Chugoku and Shikoku Regions), National Agriculture and Food Research Organization, 1-3-1 Sen-yu, Zentsuji, Kagawa 765-8505, Japan
| | - Takashi Sayama
- Western Region Agricultural Research Center (Kinki, Chugoku and Shikoku Regions), National Agriculture and Food Research Organization, 1-3-1 Sen-yu, Zentsuji, Kagawa 765-8505, Japan
| | - Ken-ichiro Yamashita
- Western Region Agricultural Research Center (Kinki, Chugoku and Shikoku Regions), National Agriculture and Food Research Organization, 1-3-1 Sen-yu, Zentsuji, Kagawa 765-8505, Japan
| | - Yoshitake Takada
- Western Region Agricultural Research Center (Kinki, Chugoku and Shikoku Regions), National Agriculture and Food Research Organization, 1-3-1 Sen-yu, Zentsuji, Kagawa 765-8505, Japan
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3
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Kato S, Yokota Y, Suzuki R, Fujisawa Y, Sayama T, Kaga A, Anai T, Komatsu K, Oki N, Kikuchi A, Ishimoto M. Identification of a cytochrome P450 hydroxylase, CYP81E22, as a causative gene for the high sensitivity of soybean to herbicide bentazon. Theor Appl Genet 2020; 133:2105-2115. [PMID: 32200415 DOI: 10.1007/s00122-020-03580-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/29/2019] [Accepted: 03/12/2020] [Indexed: 06/10/2023]
Abstract
KEY MESSAGE A frame shift invoked by a single-base deletion in the gene encoding a cytochrome P450 hydroxylase, CYP81E22, causes the loss of bentazon detoxification function in soybean. Bentazon is an effective herbicide in soybean cultivation applied at post-emergence stages for control of several broadleaf weeds. However, some soybean cultivars are highly sensitive to bentazon and are killed upon application. In this study, the gene related to the high sensitivity of soybean cultivars to bentazon was mapped to chromosome 16, and its location was narrowed down to a 257-kb region where three cytochrome P450 genes were located. In these genes, a single-base deletion of cytosine was detected in the coding region of Glyma.16G149300, CYP81E22, at + 1465 bp downstream from the translation start codon, leading to a frame shift in the open reading frame and creating a premature stop codon. This stop codon resulted in the loss of more than half of the P450, and consequently, the remaining molecule failed to form a functioning protein. This single-base deletion was common among the highly sensitive cultivars screened from the soybean mini-core collection and other previously reported highly sensitive cultivars. Furthermore, we screened plant lines from the targeting-induced local lesions in genomes library of the soybean cultivar Enrei based on a modelled 3D structure of CYP81E22. The lines with mutations in Glyma.16G149300 were highly sensitive to bentazon, which provides strong evidence that Glyma.16G149300 is the gene responsible for high sensitivity to bentazon.
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Affiliation(s)
- Shin Kato
- Tohoku Agricultural Research Center, National Agriculture and Food Research Organization (NARO), 297 Uenodai, Kariwano, Daisen, Akita, 019-2112, Japan
| | - Yuko Yokota
- Institute of Crop Science, NARO, 2-1-2 Kannondai, Tsukuba, Ibaraki, 305-8518, Japan
| | - Rintaro Suzuki
- Advanced Analysis Center, NARO, 2-1-2 Kannondai, Tsukuba, Ibaraki, 305-8602, Japan
| | - Yukiko Fujisawa
- Institute of Crop Science, NARO, 2-1-2 Kannondai, Tsukuba, Ibaraki, 305-8518, Japan
| | - Takashi Sayama
- Institute of Crop Science, NARO, 2-1-2 Kannondai, Tsukuba, Ibaraki, 305-8518, Japan
- Western Region Agricultural Research Center, NARO, 1-3-1 Senyu-cho, Zentsuji, Kagawa, 765-8508, Japan
| | - Akito Kaga
- Institute of Crop Science, NARO, 2-1-2 Kannondai, Tsukuba, Ibaraki, 305-8518, Japan
| | - Toyoaki Anai
- Faculty of Agriculture, Saga University, Saga, 840-8502, Japan
| | - Kunihiko Komatsu
- Western Region Agricultural Research Center, NARO, 1-3-1 Senyu-cho, Zentsuji, Kagawa, 765-8508, Japan
| | - Nobuhiko Oki
- Kyushu Okinawa Agricultural Research Center, NARO, 2421 Suya, Koshi, Kumamoto, 861-1192, Japan
| | - Akio Kikuchi
- Tohoku Agricultural Research Center, National Agriculture and Food Research Organization (NARO), 297 Uenodai, Kariwano, Daisen, Akita, 019-2112, Japan
| | - Masao Ishimoto
- Institute of Crop Science, NARO, 2-1-2 Kannondai, Tsukuba, Ibaraki, 305-8518, Japan.
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4
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Teshima T, Yamada N, Yokota Y, Sayama T, Inagaki K, Koeduka T, Uefune M, Ishimoto M, Matsui K. Suppressed Methionine γ-Lyase Expression Causes Hyperaccumulation of S-Methylmethionine in Soybean Seeds. Plant Physiol 2020; 183:943-956. [PMID: 32345769 PMCID: PMC7333717 DOI: 10.1104/pp.20.00254] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/02/2020] [Accepted: 04/16/2020] [Indexed: 05/31/2023]
Abstract
Several soybean (Glycine max) germplasms, such as Nishiyamahitashi 98-5 (NH), have an intense seaweed-like flavor after cooking because of their high seed S-methylmethionine (SMM) content. In this study, we compared the amounts of amino acids in the phloem sap, leaves, pods, and seeds between NH and the common soybean cultivar Fukuyutaka. This revealed a comparably higher SMM content alongside a higher free Met content in NH seeds, suggesting that the SMM-hyperaccumulation phenotype of NH soybean was related to Met metabolism in seeds. To investigate the molecular mechanism behind SMM hyperaccumulation, we examined the phenotype-associated gene locus in NH plants. Analyses of the quantitative trait loci in segregated offspring of the cross between NH and the common soybean cultivar Williams 82 indicated that one locus on chromosome 10 explains 71.4% of SMM hyperaccumulation. Subsequent fine-mapping revealed that a transposon insertion into the intron of a gene, Glyma.10g172700, is associated with the SMM-hyperaccumulation phenotype. The Glyma.10g172700-encoded recombinant protein showed Met-γ-lyase (MGL) activity in vitro, and the transposon-insertion mutation in NH efficiently suppressed Glyma.10g172700 expression in developing seeds. Exogenous administration of Met to sections of developing soybean seeds resulted in transient increases in Met levels, followed by continuous increases in SMM concentrations, which was likely caused by Met methyltransferase activity in the seeds. Accordingly, we propose that the SMM-hyperaccumulation phenotype is caused by suppressed MGL expression in developing soybean seeds, resulting in transient accumulation of Met, which is converted into SMM to avoid the harmful effects caused by excess free Met.
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Affiliation(s)
- Takuya Teshima
- Division of Agricultural Sciences, Graduate School of Sciences and Technology for Innovation, Yamaguchi University, Yamaguchi 753-8515, Japan
| | - Naohiro Yamada
- Nagano Vegetable and Ornamental Crops Experiment Station, Shiojiri, Nagano 399-6461, Japan
| | - Yuko Yokota
- Institute of Crop Science, National Agriculture and Food Research Organization, Tsukuba, Ibaraki 305-8518, Japan
| | - Takashi Sayama
- Institute of Crop Science, National Agriculture and Food Research Organization, Tsukuba, Ibaraki 305-8518, Japan
| | - Kenji Inagaki
- Department of Biofunctional Chemistry, Graduate School of Environmental and Life Science, Okayama University, Okayama700-8530, Japan
| | - Takao Koeduka
- Division of Agricultural Sciences, Graduate School of Sciences and Technology for Innovation, Yamaguchi University, Yamaguchi 753-8515, Japan
| | - Masayoshi Uefune
- Department of Agrobiological Resources, Faculty of Agriculture, Meijo University, Nagoya, Aichi 468-8502, Japan
| | - Masao Ishimoto
- Institute of Crop Science, National Agriculture and Food Research Organization, Tsukuba, Ibaraki 305-8518, Japan
| | - Kenji Matsui
- Division of Agricultural Sciences, Graduate School of Sciences and Technology for Innovation, Yamaguchi University, Yamaguchi 753-8515, Japan
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5
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Zhang J, Xu M, Dwiyanti MS, Watanabe S, Yamada T, Hase Y, Kanazawa A, Sayama T, Ishimoto M, Liu B, Abe J. A Soybean Deletion Mutant That Moderates the Repression of Flowering by Cool Temperatures. Front Plant Sci 2020; 11:429. [PMID: 32351532 PMCID: PMC7175460 DOI: 10.3389/fpls.2020.00429] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/06/2020] [Accepted: 03/24/2020] [Indexed: 05/13/2023]
Abstract
Ambient growing temperature and photoperiod are major environmental stimuli that summer annual crops use to adjust their reproductive phenology so as to maximize yield. Variation in flowering time among soybean (Glycine max) cultivars results mainly from allelic diversity at loci that control photoperiod sensitivity and FLOWERING LOCUS T (FT) orthologs. However, variation in the thermal regulation of flowering and its underlying mechanisms are poorly understood. In this study, we identified a novel mutant (ef1) that confers altered thermal regulation of flowering in response to cool ambient temperatures. Mapping analysis with simple sequence repeat (SSR) markers located the mutation in the upper part of chromosome 19, where no QTL for flowering has been previously reported. Fine-mapping and re-sequencing revealed that the mutation was caused by deletion of a 214 kbp genomic region that contains 11 annotated genes, including CONSTANS-LIKE 2b (COL2b), a soybean ortholog of Arabidopsis CONSTANS. Comparison of flowering times under different photo-thermal conditions revealed that early flowering in the mutant lines was most distinct under cool ambient temperatures. The expression of two FT orthologs, FT2a and FT5a, was dramatically downregulated by cool temperature, but the magnitude of the downregulation was lower in the mutant lines. Cool temperatures upregulated COL2b expression or delayed peak expression, particularly at the fourth trifoliate-leaf stage. Intriguingly, they also upregulated E1, a soybean-specific repressor of FT orthologs. Our results suggest that the ef1 mutation is involved in thermal regulation of flowering in response to cool ambient temperature, and the lack of COL2b in the mutant likely alleviates the repression of flowering by cool temperature. The ef1 mutant can be used as a novel gene resource in breeding soybean cultivars adapted to cool climate and in research to improve our understanding of thermal regulation of flowering in soybean.
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Affiliation(s)
- Jingyu Zhang
- Research Faculty of Agriculture, Hokkaido University, Sapporo, Japan
| | - Meilan Xu
- Research Faculty of Agriculture, Hokkaido University, Sapporo, Japan
- Key Laboratory of Soybean Molecular Design Breeding, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Harbin, China
| | | | | | - Tetsuya Yamada
- Research Faculty of Agriculture, Hokkaido University, Sapporo, Japan
| | - Yoshihiro Hase
- Takasaki Advanced Radiation Research Institute, National Institutes for Quantum and Radiological Science and Technology, Takasaki, Japan
| | - Akira Kanazawa
- Research Faculty of Agriculture, Hokkaido University, Sapporo, Japan
| | - Takashi Sayama
- Western Region Agricultural Research Center, National Agriculture and Food Research Organization, Zentuji, Japan
- Institute of Crop Science, National Agriculture and Food Research Organization, Tsukuba, Japan
| | - Masao Ishimoto
- Institute of Crop Science, National Agriculture and Food Research Organization, Tsukuba, Japan
| | - Baohui Liu
- School of Life Sciences, Guangzhou University, Guangzhou, China
| | - Jun Abe
- Research Faculty of Agriculture, Hokkaido University, Sapporo, Japan
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6
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Saruta M, Takada Y, Yamashita KI, Sayama T, Komatsu K. A QTL associated with high seed coat cracking rate of a leading Japanese soybean variety. Breed Sci 2019; 69:665-671. [PMID: 31988631 PMCID: PMC6977449 DOI: 10.1270/jsbbs.19094] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/11/2019] [Accepted: 08/22/2019] [Indexed: 06/01/2023]
Abstract
Seed coat cracking in soybeans [Glycine max (L). Merr.] leads to commercial and agronomic losses. The Japanese elite soybean cultivar 'Fukuyutaka' is often used as a parent for breeding, but its high rate of seed coat cracking is an obstacle to its further use in breeding programs. To establish a DNA marker-assisted selection system for seed coat cracking, genetic factors related to high rates of seed coat cracking were surveyed, and a quantitative trait locus (QTL) with a stable effect on seed coat cracking in both years of a two-year replication experiment was detected on chromosome 20. Comparison of a set of near-isogenic lines (NILs) around this locus verified that the presence of the 'Fukuyutaka' allele significantly increased seed coat cracking in the kernel. The locus is located in a genomic region spanning 3.2 Mb. Marker-assisted selection for the locus will improve the selection efficiency of 'Fukuyutaka'-derived breeding populations.
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Affiliation(s)
- Masayasu Saruta
- Western Region Agricultural Research Center Shikoku Research Station, National Agriculture and Food Research Organization,
1-3-1 Sen-yu, Zentsuji, Kagawa 765-8505,
Japan
| | - Yoshitake Takada
- Western Region Agricultural Research Center Shikoku Research Station, National Agriculture and Food Research Organization,
1-3-1 Sen-yu, Zentsuji, Kagawa 765-8505,
Japan
| | - Ken-ichiro Yamashita
- Western Region Agricultural Research Center Shikoku Research Station, National Agriculture and Food Research Organization,
1-3-1 Sen-yu, Zentsuji, Kagawa 765-8505,
Japan
| | - Takashi Sayama
- Western Region Agricultural Research Center Shikoku Research Station, National Agriculture and Food Research Organization,
1-3-1 Sen-yu, Zentsuji, Kagawa 765-8505,
Japan
| | - Kunihiko Komatsu
- Western Region Agricultural Research Center Shikoku Research Station, National Agriculture and Food Research Organization,
1-3-1 Sen-yu, Zentsuji, Kagawa 765-8505,
Japan
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7
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Hirata K, Takagi K, Yamada T, Sayama T, Anai T, Kikuchi A, Ishimoto M. Isolation and characterization of induced mutants in the gene associated with seed cadmium accumulation in soybean. Breed Sci 2019; 69:345-351. [PMID: 31481844 PMCID: PMC6711727 DOI: 10.1270/jsbbs.18091] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/20/2018] [Accepted: 02/11/2019] [Indexed: 06/10/2023]
Abstract
Food contamination by cadmium (Cd) is a serious threat to human health. Thus, it is imperative to prevent Cd accumulation in staple crops like soybean. The development of low Cd accumulating cultivars is an effective solution. To this end, it is essential to identify the gene(s) controlling seed Cd accumulation. Although Glyma.09G055600 (GmHMA3) seems to be associated with Cd accumulation in soybean, it has not been established if it is responsible for seed Cd accumulation. In the present study, the effect of GmHMA3 on seed Cd accumulation in soybean was validated using three independent GmHMA3 mutants isolated from an ethyl methanesulfonate-induced soybean mutant library. Each of mutant had an amino acid substitution in GmHMA3 and segregating progenies were developed by crossing the original cultivar with each of the three mutants. The relationship between these three mutations and seed Cd accumulation was investigated. While two of them significantly increased seed Cd accumulation corresponding to previous reports of a natural missense mutation in GmHMA3, the other slightly decreased seed Cd accumulation. Overall, these results indicate that GmHMA3 is responsible for seed Cd accumulation in soybean.
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Affiliation(s)
- Kaori Hirata
- Tohoku Agricultural Research Center, National Agriculture and Food Research Organization (NARO),
297 Uenodai, Kariwano, Daisen, Akita 019-2112,
Japan
| | - Kyoko Takagi
- Tohoku Agricultural Research Center NARO,
50 Harajukuminami, Arai, Fukushima 960-2156,
Japan
| | - Tetsuya Yamada
- Institute of Crop Science, NARO,
2-1-2 Kannondai, Tsukuba, Ibaraki 305-8518,
Japan
| | - Takashi Sayama
- Western Region Agricultural Research Center, NARO,
1-3-1 Senyu, Zentsuji, Kagawa 765-8508,
Japan
| | - Toyoaki Anai
- Saga University,
1 Honjo-machi, Saga 840-8502,
Japan
| | - Akio Kikuchi
- Tohoku Agricultural Research Center, National Agriculture and Food Research Organization (NARO),
297 Uenodai, Kariwano, Daisen, Akita 019-2112,
Japan
| | - Masao Ishimoto
- Institute of Crop Science, NARO,
2-1-2 Kannondai, Tsukuba, Ibaraki 305-8518,
Japan
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8
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Taguchi-Shiobara F, Fujii K, Sayama T, Hirata K, Kato S, Kikuchi A, Takahashi K, Iwahashi M, Ikeda C, Kosuge K, Okano K, Hayasaka M, Tsubokura Y, Ishimoto M. Mapping versatile QTL for soybean downy mildew resistance. Theor Appl Genet 2019; 132:959-968. [PMID: 30515530 DOI: 10.1007/s00122-018-3251-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2018] [Accepted: 11/26/2018] [Indexed: 06/09/2023]
Abstract
KEY MESSAGE Three versatile QTL for soybean downy mildew resistance in Japan were detected using five RIL populations and confirmed using recombinant fixed pairs or a backcrossed line. Downy mildew reduces soybean seed quality and size. It is a problem in Japan, where 90% of soybean grown is used as food. In the USA, 33 downy mildew races have been reported, but race differentiation in Japan is unclear. To identify quantitative trait loci (QTL) for downy mildew resistance effective in the Kanto and Tohoku regions, we performed QTL analysis using five populations of recombinant inbred lines (RILs) originated from 'Natto-shoryu' × 'Tachinagaha' (NT), 'Natto-shoryu' × 'Suzumaru', 'Satonohohoemi' × 'Fukuibuki' (SF), 'Kinusayaka' × 'COL/Akita/2009/TARC/1,' and 'YR-82' × 'Harosoy' over a 4-year period (2014-2017). We evaluated spontaneously developed symptoms of the RILs and applied 112-233 polymorphic markers to each population. Out of 31 QTL detected, we found five on chromosome 3 in three populations and another five on chromosome 7 in three populations. Other QTL were detected in one population, nine of them in different years. In the NT population, two QTL were detected in a 3.0-Mb region on chromosome 7 and in an 8.1-Mb region on chromosome 18 by evaluating nine recombinant fixed pairs in both Kanto and Tohoku regions. In the SF population, a QTL on chromosome 8 was detected in both regions. This QTL was introduced into the 'Satonohohoemi' background by backcrossing, and its effect was confirmed in both regions. In summary, two QTL on chromosomes 7 and 18 from the NT population and one QTL on chromosome 8 from the SF population were confirmed to be effective in both Tohoku and Kanto regions.
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Affiliation(s)
- Fumio Taguchi-Shiobara
- Soybean and Field Crop Applied Genomics Research Unit, Institute of Crop Science, National Agricultural and Food Research Organization (NARO), 2-1-2 Kannondai, Tsukuba, Ibaraki, 305-8518, Japan.
| | - Kenichiro Fujii
- Soybean and Field Crop Applied Genomics Research Unit, Institute of Crop Science, National Agricultural and Food Research Organization (NARO), 2-1-2 Kannondai, Tsukuba, Ibaraki, 305-8518, Japan
| | - Takashi Sayama
- Soybean and Field Crop Applied Genomics Research Unit, Institute of Crop Science, National Agricultural and Food Research Organization (NARO), 2-1-2 Kannondai, Tsukuba, Ibaraki, 305-8518, Japan
- Shikoku Research Station, Western Region Agricultural Research Center, National Agricultural and Food Research Organization (NARO), 1-3-1 Senyu, Zentsuji, Kagawa, 765-8508, Japan
| | - Kaori Hirata
- Soybean Breeding Group, Tohoku Agricultural Research Center, National Agricultural and Food Research Organization (NARO), 297 Uenodai, Kariwano, Daisen, Akita, 019-2112, Japan
| | - Shin Kato
- Soybean Breeding Group, Tohoku Agricultural Research Center, National Agricultural and Food Research Organization (NARO), 297 Uenodai, Kariwano, Daisen, Akita, 019-2112, Japan
| | - Akio Kikuchi
- Soybean Breeding Group, Tohoku Agricultural Research Center, National Agricultural and Food Research Organization (NARO), 297 Uenodai, Kariwano, Daisen, Akita, 019-2112, Japan
| | - Koji Takahashi
- Soybean Breeding Group, Institute of Crop Science, National Agricultural and Food Research Organization (NARO), 2-1-2 Kannondai, Tsukuba, Ibaraki, 305-8518, Japan
| | - Masao Iwahashi
- Ibaraki Agricultural Center, Plant Biotechnology Institute, 3402 Kamikunii, Mito, Ibaraki, 311-4203, Japan
| | - Chiaki Ikeda
- Ibaraki Agricultural Center, Plant Biotechnology Institute, 3402 Kamikunii, Mito, Ibaraki, 311-4203, Japan
| | - Kazuma Kosuge
- Ibaraki Agricultural Center, Plant Biotechnology Institute, 3402 Kamikunii, Mito, Ibaraki, 311-4203, Japan
- Namegata District Agricultural Management Guidance Center, Rokko Agricultural and Forestry Management Office, 1700-6 Aso, Namegata, Ibaraki, 311-3832, Japan
| | - Katsunori Okano
- Ibaraki Agricultural Center, Plant Biotechnology Institute, 3402 Kamikunii, Mito, Ibaraki, 311-4203, Japan
- Agricultural Management Division, Department of Agriculture, Forestry and Fisheries, Ibaraki Prefectural government, 978-6 Kasahara, Mito, Ibaraki, 310-8555, Japan
| | - Masahiro Hayasaka
- Hokkaido Research Farm, Snow Brand Seed Co., Ltd., 1066-5 Horonai, Naganuma, Yubari, Hokkaido, 069-1464, Japan
| | - Yasutaka Tsubokura
- Chiba Research Farm, Snow Brand Seed Co., Ltd., 634 Naganumahara, Inage, Chiba, Chiba, 263-0001, Japan
| | - Masao Ishimoto
- Division of Basic Research, Institute of Crop Science, National Agricultural and Food Research Organization (NARO), 2-1-2 Kannondai, Tsukuba, Ibaraki, 305-8518, Japan
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9
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Oki N, Sayama T, Ishimoto M, Yokota Y, Kaga A, Takahashi M, Takahashi M. Erratum: Quantitative trait loci associated with short inter-node length in soybean. Breed Sci 2019; 69:189. [PMID: 31086498 PMCID: PMC6507713 DOI: 10.1270/jsbbs.18087e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
[This corrects the article on p. 554 in vol. 68, PMID: 30697116.].
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Affiliation(s)
- Nobuhiko Oki
- National Agriculture and Food Research Organization, Kyushu Okinawa Agricultural Research Center,
2421 Suya, Koushi, Kumamoto 861-1192,
Japan
| | - Takashi Sayama
- National Agriculture and Food Research Organization, Western Region Agricultural Research Center,
6-12-1 Nishifukatsu, Fukuyama, Hiroshima 721-8514,
Japan
| | - Masao Ishimoto
- The Institute of Crop Sciences,
2-1-2 Kannondai, Tsukuba, Ibaraki 305-8518,
Japan
| | - Yuko Yokota
- The Institute of Crop Sciences,
2-1-2 Kannondai, Tsukuba, Ibaraki 305-8518,
Japan
| | - Akito Kaga
- The Institute of Crop Sciences,
2-1-2 Kannondai, Tsukuba, Ibaraki 305-8518,
Japan
| | - Masakazu Takahashi
- National Agriculture and Food Research Organization, Kyushu Okinawa Agricultural Research Center,
2421 Suya, Koushi, Kumamoto 861-1192,
Japan
| | - Motoki Takahashi
- The Institute of Crop Sciences,
2-1-2 Kannondai, Tsukuba, Ibaraki 305-8518,
Japan
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10
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Kato S, Sayama T, Taguchi-Shiobara F, Kikuchi A, Ishimoto M, Cober E. Effect of change from a determinate to a semi-determinate growth habit on the yield and lodging resistance of soybeans in the northeast region of Japan. Breed Sci 2019; 69:151-159. [PMID: 31086493 PMCID: PMC6507727 DOI: 10.1270/jsbbs.18112] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/24/2018] [Accepted: 11/23/2018] [Indexed: 05/20/2023]
Abstract
Although an indeterminate growth habit is attractive to develop high-yield soybean varieties with higher number of pods (Glycine max (L). Merr.), lodging in indeterminate varieties remains a problem in Japan. As the semi-determinate varieties have shorter main stem length than the indeterminate varieties, this trait can be useful to improve varieties with high yield and low lodging risk. We introduced the genes Dt1 and Dt2, which regulate stem growth habit, into three determinate varieties by backcrossing and evaluated the resulting effects on yield and lodging tendency under four different growing environments. The yield and lodging degree of the semi-determinate and indeterminate lines were higher and more severe than those of the determinate lines. Despite the lower overall lodging score, the semi-determinate lines had marginally lower overall yield than that of the indeterminate lines. However, the effect of introduction of semi-determinate traits on yield and lodging degree was different in the three backgrounds, with the yield of semi-determinate lines being the highest and the difference in lodging degree between the semi-determinate and determinate lines being under 1.0 in one background. Therefore, semi-determinate growth habit has potential to develop high yielding varieties with low lodging risk.
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Affiliation(s)
- Shin Kato
- Tohoku Agricultural Research Center, National Agriculture and Food Research Organization (NARO),
297 Uenodai, Kariwano, Daisen, Akita 019-2112,
Japan
- Corresponding author (e-mail: )
| | - Takashi Sayama
- Western Region Agricultural Research Center, NARO,
1-3-1 Senyuu, Zentsuji, Kagawa 765-8508,
Japan
| | | | - Akio Kikuchi
- Tohoku Agricultural Research Center, National Agriculture and Food Research Organization (NARO),
297 Uenodai, Kariwano, Daisen, Akita 019-2112,
Japan
| | - Masao Ishimoto
- Institute of Crop Science, NARO,
2-1-2 Kannondai, Tsukuba, Ibaraki 305-8602,
Japan
| | - Elroy Cober
- Ottawa Research Development Centre, Agriculture and Agri-Food Canada,
960 Carling Ave., Ottawa, Ontario K1A0C6,
Canada
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11
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Oki N, Sayama T, Ishimoto M, Yokota I, Kaga A, Takahashi M, Takahashi M. Quantitative trait loci associated with short inter-node length in soybean. Breed Sci 2018; 68:554-560. [PMID: 30697116 PMCID: PMC6345224 DOI: 10.1270/jsbbs.18087] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/14/2018] [Accepted: 08/17/2018] [Indexed: 05/25/2023]
Abstract
Manipulating the genetic control of plant height is essential in soybean breeding to increase yield through the enlargement of the plant size while preventing lodging. A Japanese soybean germplasm, Y2, has distinctively shorter inter-node lengths than those of recently developed Japanese cultivars and is expected to provide new variation to prevent lodging. A quantitative trait loci (QTL) analysis for plant height-related traits was conducted using F2 individuals derived from a cross between the elite Japanese cultivar Fukuyutaka and Y2. A major QTL for average inter-node length (AIL) and plant height was identified on chromosome 13 and named qSI13-1 (QTL for short inter-node on chromosome 13). The Y2 allele of qSI13-1 was partially dominant for plant height. qSI13-1 exhibited no effect on either days to flowering or number of main stem nodes. The AILs and plant heights of the near-isogenic lines containing the Y2 allele of qSI13-1 in the genetic background of Fukuyutaka were significantly less than those of Fukuyutaka. No significant differences between the near-isogenic lines and Fukuyutaka were observed for seed yield and flowering date, indicating that qSI13-1 will be useful in developing cultivars with short plant heights without having negative effects on yield potential and days to flowering.
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Affiliation(s)
- Nobuhiko Oki
- National Agriculture and Food Research Organization, Kyushu Okinawa Agricultural Research Center,
2421 Suya, Koushi, Kumamoto 861-1192,
Japan
| | - Takashi Sayama
- National Agriculture and Food Research Organization, Western Region Agricultural Research Center,
6-12-1 Nishifukatsu, Fukuyama, Hiroshima 721-8514,
Japan
| | - Masao Ishimoto
- The Institute of Crop Sciences,
2-1-2 Kannondai, Tsukuba, Ibaraki 305-8518,
Japan
| | - Ikuko Yokota
- The Institute of Crop Sciences,
2-1-2 Kannondai, Tsukuba, Ibaraki 305-8518,
Japan
| | - Akito Kaga
- The Institute of Crop Sciences,
2-1-2 Kannondai, Tsukuba, Ibaraki 305-8518,
Japan
| | - Masakazu Takahashi
- National Agriculture and Food Research Organization, Kyushu Okinawa Agricultural Research Center,
2421 Suya, Koushi, Kumamoto 861-1192,
Japan
| | - Motoki Takahashi
- The Institute of Crop Sciences,
2-1-2 Kannondai, Tsukuba, Ibaraki 305-8518,
Japan
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12
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Kato S, Sayama T, Ishimoto M, Yumoto S, Kikuchi A, Nishio T. The effect of stem growth habit on single seed weight and seed uniformity in soybean ( Glycine max (L.) Merrill). Breed Sci 2018; 68:352-359. [PMID: 30100802 PMCID: PMC6081300 DOI: 10.1270/jsbbs.17137] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/15/2017] [Accepted: 03/12/2018] [Indexed: 05/29/2023]
Abstract
The timing of flower formation and length of the seed-filling period of indeterminate growth soybean varieties vary more than those of determinate varieties (Glycine max (L.) Merrill). These variations have been hypothesized to affect single seed weight and its uniformity which determine the processing quality of soybean used in foods. We derived near isogenic lines (NILs) with different growth characteristics from an indeterminate line (donor parent) and three determinate lines with heavy seeds (recurrent parents), and evaluated the effects of growth habit on seed weight and its uniformity. Each NIL population consisting of five indeterminate and five determinate BC4F4 lines tested at two locations in two different years with two replications. Split-plot analysis of variance, with main-plot and sub-plot being cross combination and growth habit, respectively, showed that indeterminate varieties had slightly heavier seeds than determinate varieties and that there was no significant difference in uniformity of single seed weights. The effects of growth habit on seed uniformity was related to genetic background, but differences between the two growth characteristics were less than the differences among genetic background. This indicates that indeterminate growth habit did not much influence seed weight or its uniformity.
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Affiliation(s)
- Shin Kato
- Tohoku Agricultural Research Center, National Agriculture and Food Research Organization (NARO),
297 Uenodai, Kariwano, Daisen, Akita 019-2112,
Japan
| | - Takashi Sayama
- Western Region Agricultural Research Center, NARO,
1-3-1 Senyuu, Zentsuji, Kagawa 765-8508,
Japan
| | - Masao Ishimoto
- Institute of Crop Science, NARO,
2-1-2 Kannondai, Tsukuba, Ibaraki 305-8602,
Japan
| | - Setsuzo Yumoto
- Institute of Crop Science, NARO,
2-1-2 Kannondai, Tsukuba, Ibaraki 305-8602,
Japan
| | - Akio Kikuchi
- Tohoku Agricultural Research Center, National Agriculture and Food Research Organization (NARO),
297 Uenodai, Kariwano, Daisen, Akita 019-2112,
Japan
| | - Takeshi Nishio
- Graduate School of Agricultural Science, Tohoku University,
1-1 Tsutsumidori, Amamiyamachi, Aoba, Sendai, Miyagi 981-8555,
Japan
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13
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Fujii K, Sayama T, Takagi K, Kosuge K, Okano K, Kaga A, Ishimoto M. Identification and dissection of single seed weight QTLs by analysis of seed yield components in soybean. Breed Sci 2018; 68:177-187. [PMID: 29875601 PMCID: PMC5982185 DOI: 10.1270/jsbbs.17098] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/18/2017] [Accepted: 10/23/2017] [Indexed: 05/20/2023]
Abstract
Single seed weight (SSW), or seed size, is a seed yield components (SYC) in soybean, and it is suggested that the genetic factors regulating SSW are involved in the control of other SYCs. The quantitative trait loci (QTLs) for SSW and their effects on the other SYCs were investigated using a recombinant inbred line population derived from typical small- and large-seeded cultivars that were cultivated in two different environments. QTL analysis detected four environmentally stable QTLs for SSW, two of which coincided with the defined loci, qSw17-1 and Ln. The effects of the other loci, qSw12-1 and qSw13-1, were confirmed by analyzing residual heterozygous line progenies derived from the recombinant population. These four QTL regions were also involved in the control of an additional SYC, namely the large-seeded allele at each locus that reduced either the number of pods per plant or the number of ovules per pod. These results suggest the presence of at least two different regulatory mechanisms for SSW. Isolation of genes responsible for these QTLs provides an important tool in the understanding and utilization of SSW diversity for soybean breeding.
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Affiliation(s)
- Kenichiro Fujii
- Institute of Crop Science, National Agriculture and Food Research Organization (NARO),
2-1-2 Kannondai, Tsukuba, Ibaraki 305-8518,
Japan
- National Institute of Agrobiological Sciences,
2-1-2 Kannondai, Tsukuba, Ibaraki 305-8602,
Japan
| | - Takashi Sayama
- Institute of Crop Science, National Agriculture and Food Research Organization (NARO),
2-1-2 Kannondai, Tsukuba, Ibaraki 305-8518,
Japan
- National Institute of Agrobiological Sciences,
2-1-2 Kannondai, Tsukuba, Ibaraki 305-8602,
Japan
| | - Kyoko Takagi
- National Institute of Agrobiological Sciences,
2-1-2 Kannondai, Tsukuba, Ibaraki 305-8602,
Japan
| | - Kazumasa Kosuge
- Plant Biotechnology Institute, Ibaraki Agriculture Center,
3165-1 Ago, Kasama, Ibaraki 319-0206,
Japan
| | - Katsunori Okano
- Plant Biotechnology Institute, Ibaraki Agriculture Center,
3165-1 Ago, Kasama, Ibaraki 319-0206,
Japan
| | - Akito Kaga
- Institute of Crop Science, National Agriculture and Food Research Organization (NARO),
2-1-2 Kannondai, Tsukuba, Ibaraki 305-8518,
Japan
- National Institute of Agrobiological Sciences,
2-1-2 Kannondai, Tsukuba, Ibaraki 305-8602,
Japan
| | - Masao Ishimoto
- Institute of Crop Science, National Agriculture and Food Research Organization (NARO),
2-1-2 Kannondai, Tsukuba, Ibaraki 305-8518,
Japan
- National Institute of Agrobiological Sciences,
2-1-2 Kannondai, Tsukuba, Ibaraki 305-8602,
Japan
- Corresponding author (e-mail: )
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14
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Sayama T, Tanabata T, Saruta M, Yamada T, Anai T, Kaga A, Ishimoto M. Confirmation of the pleiotropic control of leaflet shape and number of seeds per pod by the Ln gene in induced soybean mutants. Breed Sci 2017; 67:363-369. [PMID: 29085246 PMCID: PMC5654458 DOI: 10.1270/jsbbs.16201] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/26/2016] [Accepted: 05/15/2017] [Indexed: 05/10/2023]
Abstract
Most soybean cultivars possess broad leaflets; however, a recessive allele on the Ln locus is known to cause the alteration of broad to narrow leaflets. The recessive allele ln has also been considered to increase the number of seeds per pod (NSP) and has the potential to improve yield. Recently, Gm-JAG1 (Glyma20g25000), a gene controlling Ln, has been shown to complement leaf shape and silique length in Arabidopsis mutants. However, whether Gm-JAG1 is responsible for those traits in soybean is not yet known. In this study, we investigated the pleiotropic effect of soybean Ln gene on leaflet shape and NSP by using two independent soybean Gm-jag1 mutants and four ln near isogenic lines (NILs). The leaflet shape was evaluated using a leaf image analysis software, SmartLeaf, which was customized from SmartGrain. The leaflets of both the Gm-jag1 mutants were longer and narrower than those of the wild-type plants. Interestingly, the image analysis results clarified that the perimeter of the mutant leaflets did not change, although their leaflet area decreased. Furthermore, one mutant line with narrow leaflets showed significantly higher NSP than that in the wild (or Ln) genotype, indicating that soybean Ln gene pleiotropically controls leaflet shape and NSP.
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Affiliation(s)
- Takashi Sayama
- Institute of Crop Science, National Agriculture and Food Research Organization (NARO),
2-1-2 Kannondai, Tsukuba, Ibaraki 305-8518,
Japan
- Western Region Agricultural Research Center, NARO,
1-3-1 Senyu, Zentsuji, Kagawa 765-8508,
Japan
| | - Takanari Tanabata
- Kazusa DNA Research Institute,
2-6-7 Kazusa-kamatari, Kisarazu, Chiba 292-0818,
Japan
| | - Masayasu Saruta
- Western Region Agricultural Research Center, NARO,
1-3-1 Senyu, Zentsuji, Kagawa 765-8508,
Japan
- Present address: Agriculture, Forestry and Fisheries Research Council, Ministry of Agriculture, Forestry and Fisheries,
1-2-1 Kasumigaseki, Chiyoda, Tokyo 100-8950,
Japan
| | - Testsuya Yamada
- Institute of Crop Science, National Agriculture and Food Research Organization (NARO),
2-1-2 Kannondai, Tsukuba, Ibaraki 305-8518,
Japan
| | - Toyoaki Anai
- Laboratory of Plant Genetics and Breeding, Faculty of Agriculture, Saga University,
Honjyo-machi 1, Saga 840-8502,
Japan
| | - Akito Kaga
- Institute of Crop Science, National Agriculture and Food Research Organization (NARO),
2-1-2 Kannondai, Tsukuba, Ibaraki 305-8518,
Japan
| | - Masao Ishimoto
- Institute of Crop Science, National Agriculture and Food Research Organization (NARO),
2-1-2 Kannondai, Tsukuba, Ibaraki 305-8518,
Japan
- Corresponding author (e-mail: )
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15
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Yano R, Takagi K, Takada Y, Mukaiyama K, Tsukamoto C, Sayama T, Kaga A, Anai T, Sawai S, Ohyama K, Saito K, Ishimoto M. Metabolic switching of astringent and beneficial triterpenoid saponins in soybean is achieved by a loss-of-function mutation in cytochrome P450 72A69. Plant J 2017; 89:527-539. [PMID: 27775214 DOI: 10.1111/tpj.13403] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/08/2016] [Revised: 10/12/2016] [Accepted: 10/17/2016] [Indexed: 05/24/2023]
Abstract
Triterpenoid saponins are major components of secondary metabolites in soybean seeds and are divided into two groups: group A saponins, and 2,3-dihydro-2,5-dihydroxy-6-methyl-4H-pyran-4-one (DDMP) saponins. The aglycone moiety of group A saponins consists of soyasapogenol A (SA), which is an oxidized β-amyrin product, and the aglycone moiety of the DDMP saponins consists of soyasapogenol B (SB). Group A saponins produce a bitter and astringent aftertaste in soy products, whereas DDMP saponins have known health benefits for humans. We completed map-based cloning and characterization of the gene Sg-5, which is responsible for SA biosynthesis. The naturally occurring sg-5 mutant lacks group A saponins and has a loss-of-function mutation (L164*) in Glyma15g39090, which encodes the cytochrome P450 enzyme, CYP72A69. An enzyme assay indicated the hydroxylase activity of recombinant CYP72A69 against SB, which also suggested the production of SA. Additionally, induced Glyma15g39090 mutants (R44* or S348P) lacked group A saponins similar to the sg-5 mutant, indicating that Glyma15g39090 corresponds to Sg-5. Endogenous levels of DDMP saponins were higher in the sg-5 mutant than in the wild-type lines due to the loss of the enzyme activity that converts SB to SA. Interestingly, the genomes of palaeopolyploid soybean and the closely related common bean carry multiple Sg-5 paralogs in a genomic region syntenic to the soybean Sg-5 region. However, SA did not accumulate in common bean samples, suggesting that Sg-5 activity evolved after gene duplication event(s). Our results demonstrate that metabolic switching of undesirable saponins with beneficial saponins can be achieved in soybean by disabling Sg-5.
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Affiliation(s)
- Ryoichi Yano
- National Institute of Agrobiological Sciences (NIAS), 2-1-2 Kannondai, Tsukuba, Ibaraki, 305-8602, Japan
- Faculty of Life and Environmental Sciences, University of Tsukuba, Tsukuba, Ibaraki, 305-8572, Japan
| | - Kyoko Takagi
- National Institute of Agrobiological Sciences (NIAS), 2-1-2 Kannondai, Tsukuba, Ibaraki, 305-8602, Japan
| | - Yoshitake Takada
- Western Region Agricultural Research Center, NARO, 1-3-1 Senyu, Zentsuji, Kagawa, 765-8508, Japan
| | - Kyosuke Mukaiyama
- Faculty of Agriculture, Iwate University, 3-18-8 Ueda, Morioka, Iwate, 020-8550, Japan
| | - Chigen Tsukamoto
- Faculty of Agriculture, Iwate University, 3-18-8 Ueda, Morioka, Iwate, 020-8550, Japan
| | - Takashi Sayama
- National Institute of Agrobiological Sciences (NIAS), 2-1-2 Kannondai, Tsukuba, Ibaraki, 305-8602, Japan
- Institute of Crop Science, NARO, 2-1-2 Kannondai, Tsukuba, Ibaraki, 305-8518, Japan
| | - Akito Kaga
- National Institute of Agrobiological Sciences (NIAS), 2-1-2 Kannondai, Tsukuba, Ibaraki, 305-8602, Japan
- Genetic Resources Center, NARO, 2-1-2 Kannondai, Tsukuba, Ibaraki, 305-8602, Japan
| | - Toyoaki Anai
- Laboratory of Plant Genetics and Breeding, Faculty of Agriculture, Saga University, Honjyo-machi 1, Saga, 840-8502, Japan
| | - Satoru Sawai
- RIKEN Center for Sustainable Resource Science (CSRS), 1-7-22 Suehiro-cho, Tsurumi-ku, Yokohama, Kanagawa, 230-0045, Japan
| | - Kiyoshi Ohyama
- RIKEN Center for Sustainable Resource Science (CSRS), 1-7-22 Suehiro-cho, Tsurumi-ku, Yokohama, Kanagawa, 230-0045, Japan
- Department of Chemistry and Materials Science, Tokyo Institute of Technology, Oh-okayama 2-12-1, Meguro-ku, Tokyo, 152-8551, Japan
| | - Kazuki Saito
- RIKEN Center for Sustainable Resource Science (CSRS), 1-7-22 Suehiro-cho, Tsurumi-ku, Yokohama, Kanagawa, 230-0045, Japan
- Graduate School of Pharmaceutical Sciences, Chiba University, Inohana 1-8-1, Chuo-ku, Chiba, 260-8675, Japan
| | - Masao Ishimoto
- National Institute of Agrobiological Sciences (NIAS), 2-1-2 Kannondai, Tsukuba, Ibaraki, 305-8602, Japan
- Institute of Crop Science, NARO, 2-1-2 Kannondai, Tsukuba, Ibaraki, 305-8518, Japan
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16
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Takeshima R, Hayashi T, Zhu J, Zhao C, Xu M, Yamaguchi N, Sayama T, Ishimoto M, Kong L, Shi X, Liu B, Tian Z, Yamada T, Kong F, Abe J. A soybean quantitative trait locus that promotes flowering under long days is identified as FT5a, a FLOWERING LOCUS T ortholog. J Exp Bot 2016; 67:5247-58. [PMID: 27422993 PMCID: PMC5014162 DOI: 10.1093/jxb/erw283] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
FLOWERING LOCUS T (FT) is an important floral integrator whose functions are conserved across plant species. In soybean, two orthologs, FT2a and FT5a, play a major role in initiating flowering. Their expression in response to different photoperiods is controlled by allelic combinations at the maturity loci E1 to E4, generating variation in flowering time among cultivars. We determined the molecular basis of a quantitative trait locus (QTL) for flowering time in linkage group J (Chromosome 16). Fine-mapping delimited the QTL to a genomic region of 107kb that harbors FT5a We detected 15 DNA polymorphisms between parents with the early-flowering (ef) and late-flowering (lf) alleles in the promoter region, an intron, and the 3' untranslated region of FT5a, although the FT5a coding regions were identical. Transcript abundance of FT5a was higher in near-isogenic lines for ef than in those for lf, suggesting that different transcriptional activities or mRNA stability caused the flowering time difference. Single-nucleotide polymorphism (SNP) calling from re-sequencing data for 439 cultivated and wild soybean accessions indicated that ef is a rare haplotype that is distinct from common haplotypes including lf The ef allele at FT5a may play an adaptive role at latitudes where early flowering is desirable.
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Affiliation(s)
- Ryoma Takeshima
- Research Faculty of Agriculture, Hokkaido University, Sapporo, Hokkaido 060-8589, Japan
| | - Takafumi Hayashi
- Research Faculty of Agriculture, Hokkaido University, Sapporo, Hokkaido 060-8589, Japan
| | - Jianghui Zhu
- Research Faculty of Agriculture, Hokkaido University, Sapporo, Hokkaido 060-8589, Japan
| | - Chen Zhao
- Research Faculty of Agriculture, Hokkaido University, Sapporo, Hokkaido 060-8589, Japan
| | - Meilan Xu
- The Key Laboratory of Soybean Molecular Design Breeding, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Harbin 150081, China
| | - Naoya Yamaguchi
- Hokkaido Research Organization Tokachi Agricultural Experiment Station, Memuro, Hokkaido 082-0081, Japan
| | - Takashi Sayama
- National Institute of Agrobiological Sciences, Kannondai, Ibaraki 305-8602, Japan
| | - Masao Ishimoto
- National Institute of Agrobiological Sciences, Kannondai, Ibaraki 305-8602, Japan
| | - Lingping Kong
- The Key Laboratory of Soybean Molecular Design Breeding, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Harbin 150081, China
| | - Xinyi Shi
- The Key Laboratory of Soybean Molecular Design Breeding, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Harbin 150081, China
| | - Baohui Liu
- The Key Laboratory of Soybean Molecular Design Breeding, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Harbin 150081, China
| | - Zhixi Tian
- State Key Laboratory of Plant Cell and Chromosome Engineering, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 1001014, China
| | - Tetsuya Yamada
- Research Faculty of Agriculture, Hokkaido University, Sapporo, Hokkaido 060-8589, Japan
| | - Fanjiang Kong
- The Key Laboratory of Soybean Molecular Design Breeding, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Harbin 150081, China
| | - Jun Abe
- Research Faculty of Agriculture, Hokkaido University, Sapporo, Hokkaido 060-8589, Japan
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17
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Yasuda C, Arakawa S, Shimogawa T, Kanazawa Y, Sayama T, Haga S, Morioka T. Clinical Significance of the Champagne Bottle Neck Sign in the Extracranial Carotid Arteries of Patients with Moyamoya Disease. AJNR Am J Neuroradiol 2016; 37:1898-1902. [PMID: 27231227 DOI: 10.3174/ajnr.a4815] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2015] [Accepted: 03/18/2016] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE The champagne bottle neck sign represents a rapid reduction in the extracranial ICA diameters and is a characteristic feature of Moyamoya disease. However, the clinical significance of the champagne bottle neck sign is unclear. We investigated the relationship between the champagne bottle neck sign and the clinical and hemodynamic stages of Moyamoya disease. MATERIALS AND METHODS We analyzed 14 patients with Moyamoya disease before revascularization (5 men, 9 women; age, 43.2 ± 19.3 years). The ratio of the extracranial ICA and common carotid artery diameters was determined using carotid ultrasonography or cerebral angiography; a ratio of < 0.5 was considered champagne bottle neck sign-positive. The clinical disease stage was determined using the Suzuki angiographic grading system. CBF and cerebral vasoreactivity also were measured. RESULTS The ICA/common carotid artery ratio (expressed as median [interquartile range]) decreased as the clinical stage advanced (stages I-II, 0.71 [0.60-0.77]; stages III-IV, 0.49 [0.45-0.57]; stages V-VI, 0.38 [0.34-0.47]; P < .001). Lower ICA/common carotid artery ratio tended to occur in symptomatic versus asymptomatic arteries (0.47 [0.40-0.53] versus 0.57 [0.40-0.66], respectively; P = .06). Although the ICA/common carotid artery ratio was not related to cerebral perfusion, it decreased as cerebral vasoreactivity decreased (P < .01). All champagne bottle neck sign-positive arteries were classified as Suzuki stage ≥III, 73% were symptomatic, and 89% exhibited reduced cerebral vasoreactivity. In contrast, all champagne bottle neck sign-negative arteries were Suzuki stage ≤III, 67% were asymptomatic, and all showed preserved cerebral vasoreactivity. CONCLUSIONS The champagne bottle neck sign was related to advanced clinical stage, clinical symptoms, and impaired cerebral vasoreactivity. Thus, detection of the champagne bottle neck sign might be useful in determining the clinical and hemodynamic stages of Moyamoya disease.
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Affiliation(s)
- C Yasuda
- From the Departments of Cerebrovascular Disease (C.Y., S.A., Y.K.)
| | - S Arakawa
- From the Departments of Cerebrovascular Disease (C.Y., S.A., Y.K.)
| | - T Shimogawa
- Neurosurgery (T.Shimogawa, T.Sayama, S.H., T.M.), Japan Labour Health and Welfare Organization, Kyushu Rosai Hospital, Kitakyushu, Japan
| | - Y Kanazawa
- From the Departments of Cerebrovascular Disease (C.Y., S.A., Y.K.)
| | - T Sayama
- Neurosurgery (T.Shimogawa, T.Sayama, S.H., T.M.), Japan Labour Health and Welfare Organization, Kyushu Rosai Hospital, Kitakyushu, Japan
| | - S Haga
- Neurosurgery (T.Shimogawa, T.Sayama, S.H., T.M.), Japan Labour Health and Welfare Organization, Kyushu Rosai Hospital, Kitakyushu, Japan
| | - T Morioka
- Neurosurgery (T.Shimogawa, T.Sayama, S.H., T.M.), Japan Labour Health and Welfare Organization, Kyushu Rosai Hospital, Kitakyushu, Japan
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18
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Kato S, Takada Y, Shimamura S, Hirata K, Sayama T, Taguchi-Shiobara F, Ishimoto M, Kikuchi A, Nishio T. Transfer of the Rsv3 locus from 'Harosoy' for resistance to soybean mosaic virus strains C and D in Japan. Breed Sci 2016; 66:319-27. [PMID: 27162503 PMCID: PMC4785009 DOI: 10.1270/jsbbs.66.319] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/10/2015] [Accepted: 11/05/2015] [Indexed: 05/10/2023]
Abstract
Resistance to soybean mosaic virus (SMV) is imperative for soybean (Glycine max (L.) Merr.) production in the Tohoku region. Molecular markers for SMV resistance were previously reported for U.S. SMV strains, but they cannot be applied because of the differences in strain classification between Japan and the U.S. A U.S. variety 'Harosoy' has been used mainly as a donor of resistance to SMV strains C and D in a Japanese breeding program, resulting in resistant varieties such as 'Fukuibuki.' Because 'Harosoy' harbors the Rsv3 gene conferring resistance to the virulent SMV strain groups, G5 through G7, it appears that the Rsv3 gene confers resistance to strains C and D. In this study, we introduced resistance to the two strains from 'Fukuibuki' into a leading variety 'Ohsuzu' by recurrent backcrossing with marker-assisted selection. All lines selected with markers near Rsv3 showed resistance to the strains, suggesting that the Rsv3 locus is responsible for the resistance. Three years of trials showed that one of the breeding lines, 'Tohoku 169,' was equivalent to 'Ohsuzu' with respect to agricultural characteristics such as seed size, maturity date, and seed yield, except for the SMV resistance.
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Affiliation(s)
- Shin Kato
- NARO Tohoku Agricultural Research Center,
297 Uenodai, Kariwano, Daisen, Akita 019-2112,
Japan
- Corresponding author (e-mail: )
| | - Yoshitake Takada
- NARO Western Region Agricultural Research Center,
1-3-1 Senyuu, Zentsuji, Kagawa 765-8508,
Japan
| | - Satoshi Shimamura
- NARO Tohoku Agricultural Research Center,
297 Uenodai, Kariwano, Daisen, Akita 019-2112,
Japan
| | - Kaori Hirata
- NARO Tohoku Agricultural Research Center,
297 Uenodai, Kariwano, Daisen, Akita 019-2112,
Japan
| | - Takashi Sayama
- National Institute of Agrobiological Sciences,
2-1-2 Kannondai, Tsukuba, Ibaraki 305-8602,
Japan
| | - Fumio Taguchi-Shiobara
- National Institute of Agrobiological Sciences,
2-1-2 Kannondai, Tsukuba, Ibaraki 305-8602,
Japan
| | - Masao Ishimoto
- National Institute of Agrobiological Sciences,
2-1-2 Kannondai, Tsukuba, Ibaraki 305-8602,
Japan
| | - Akio Kikuchi
- NARO Tohoku Agricultural Research Center,
297 Uenodai, Kariwano, Daisen, Akita 019-2112,
Japan
| | - Takeshi Nishio
- Graduate School of Agricultural Science, Tohoku University,
1-1 Tsutsumidori, Amamiyamachi, Aoba, Sendai, Miyagi 981-8555,
Japan
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19
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Tsuda M, Kaga A, Anai T, Shimizu T, Sayama T, Takagi K, Machita K, Watanabe S, Nishimura M, Yamada N, Mori S, Sasaki H, Kanamori H, Katayose Y, Ishimoto M. Construction of a high-density mutant library in soybean and development of a mutant retrieval method using amplicon sequencing. BMC Genomics 2015; 16:1014. [PMID: 26610706 PMCID: PMC4662035 DOI: 10.1186/s12864-015-2079-y] [Citation(s) in RCA: 67] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2015] [Accepted: 10/13/2015] [Indexed: 12/17/2022] Open
Abstract
BACKGROUND Functions of most genes predicted in the soybean genome have not been clarified. A mutant library with a high mutation density would be helpful for functional studies and for identification of novel alleles useful for breeding. Development of cost-effective and high-throughput protocols using next generation sequencing (NGS) technologies is expected to simplify the retrieval of mutants with mutations in genes of interest. RESULTS To increase the mutation density, seeds of the Japanese elite soybean cultivar Enrei were treated with the chemical mutagen ethyl methanesulfonate (EMS); M2 seeds produced by M1 plants were treated with EMS once again. The resultant library, which consisted of DNA and seeds from 1536 plants, revealed large morphological and physiological variations. Based on whole-genome re-sequencing analysis of 12 mutant lines, the average number of base changes was 12,796 per line. On average, 691 and 35 per line were missense and nonsense mutations, respectively. Two screening strategies for high resolution melting (HRM) analysis and indexed amplicon sequencing were designed to retrieve the mutants; the mutations were confirmed by Sanger sequencing as the final step. In comparison with HRM screening of several genes, indexed amplicon sequencing allows one to scan a longer sequence range and skip screening steps and to know the sequence information of mutation because it uses systematic DNA pooling and the index of NGS reads, which simplifies the discovery of mutants with amino acid substitutions. CONCLUSIONS A soybean mutant library with a high mutation density was developed. A high mutation density (1 mutation/74 kb) was achieved by repeating the EMS treatment. The mutation density of our library is sufficiently high to obtain a plant in which a gene is nonsense mutated. Thus, our mutant library and the indexed amplicon sequencing will be useful for functional studies of soybean genes and have a potential to yield useful mutant alleles for soybean breeding.
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Affiliation(s)
- Mai Tsuda
- Agronomics Research Center, National Institute of Agrobiological Sciences, 2-1-2 Kannondai, Tsukuba, Ibaraki, 305-8602, Japan.
- Present address: Gene Research Center, Faculty of Life and Environmental Sciences, University of Tsukuba, 1-1-1, Ten-nodai, Tsukuba, Ibaraki, 305-8574, Japan.
| | - Akito Kaga
- Agronomics Research Center, National Institute of Agrobiological Sciences, 2-1-2 Kannondai, Tsukuba, Ibaraki, 305-8602, Japan.
| | - Toyoaki Anai
- Faculty of Agriculture, Saga University, 1 Honjo-machi, Saga, 840-8502, Japan.
| | - Takehiko Shimizu
- Agronomics Research Center, National Institute of Agrobiological Sciences, 2-1-2 Kannondai, Tsukuba, Ibaraki, 305-8602, Japan.
| | - Takashi Sayama
- Agronomics Research Center, National Institute of Agrobiological Sciences, 2-1-2 Kannondai, Tsukuba, Ibaraki, 305-8602, Japan.
| | - Kyoko Takagi
- Agronomics Research Center, National Institute of Agrobiological Sciences, 2-1-2 Kannondai, Tsukuba, Ibaraki, 305-8602, Japan.
- Present Address: Soil Science and Plant Nutrition Division, National Agriculture and Food Research Organization Agricultural Research Center, 3-1-1, Kannondai, Tsukuba, Ibaraki, 305-8666, Japan.
| | - Kayo Machita
- Agronomics Research Center, National Institute of Agrobiological Sciences, 2-1-2 Kannondai, Tsukuba, Ibaraki, 305-8602, Japan.
| | - Satoshi Watanabe
- Agronomics Research Center, National Institute of Agrobiological Sciences, 2-1-2 Kannondai, Tsukuba, Ibaraki, 305-8602, Japan.
- Faculty of Agriculture, Saga University, 1 Honjo-machi, Saga, 840-8502, Japan.
| | - Minoru Nishimura
- Agronomics Research Center, National Institute of Agrobiological Sciences, 2-1-2 Kannondai, Tsukuba, Ibaraki, 305-8602, Japan.
- Present Address: Faculty of Agriculture, Niigata University, 8050, Ikarashi 2-no-cho, Nishi-ku, Niigata, 950-2181, Japan.
| | - Naohiro Yamada
- Nagano Vegetable and Ornamental Crops Experiment Station, 1066-1, Soga, Shiojiri, Nagano, 399-6461, Japan.
| | - Satomi Mori
- Agronomics Research Center, National Institute of Agrobiological Sciences, 2-1-2 Kannondai, Tsukuba, Ibaraki, 305-8602, Japan.
| | - Harumi Sasaki
- Agronomics Research Center, National Institute of Agrobiological Sciences, 2-1-2 Kannondai, Tsukuba, Ibaraki, 305-8602, Japan.
| | - Hiroyuki Kanamori
- Agronomics Research Center, National Institute of Agrobiological Sciences, 2-1-2 Kannondai, Tsukuba, Ibaraki, 305-8602, Japan.
| | - Yuichi Katayose
- Agronomics Research Center, National Institute of Agrobiological Sciences, 2-1-2 Kannondai, Tsukuba, Ibaraki, 305-8602, Japan.
| | - Masao Ishimoto
- Agronomics Research Center, National Institute of Agrobiological Sciences, 2-1-2 Kannondai, Tsukuba, Ibaraki, 305-8602, Japan.
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20
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Kato S, Fujii K, Yumoto S, Ishimoto M, Shiraiwa T, Sayama T, Kikuchi A, Nishio T. Seed yield and its components of indeterminate and determinate lines in recombinant inbred lines of soybean. Breed Sci 2015; 65:154-60. [PMID: 26069445 PMCID: PMC4430510 DOI: 10.1270/jsbbs.65.154] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/04/2014] [Accepted: 12/10/2014] [Indexed: 05/18/2023]
Abstract
The present study was conducted to evaluate the benefits of indeterminate growth habit in breeding to improve yield potential of Japanese soybean varieties, which exclusively have determinate growth habit. Two populations of recombinant inbred lines (RILs) derived from crosses between determinate Japanese cultivars and indeterminate US cultivars were grown in Akita and Kyoto, and seed weight per plant (SW) and its components were compared between indeterminate and determinate RILs. The difference of SW between the two growth habits in RILs varied depending on maturation time. The SW of early indeterminate lines was significantly higher than that of early determinate ones in Akita, but not in Kyoto. Among yield components, the number of seeds per pod was constantly larger in indeterminate lines than that in determinate ones irrespective of maturation time. The number of seeds per plant and the number of pods per plant of the indeterminate lines were greater than those of the determinate lines in early maturation in Akita. These results suggest that the indeterminate growth habit is an advantageous characteristic in breeding for high yield of early maturing soybean varieties in the Tohoku region.
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Affiliation(s)
- Shin Kato
- National Agriculture and Food Research Organization (NARO) Tohoku Agricultural Research Center,
Uenodai, Kariwano, Daisen, Akita 019-2112,
Japan
| | - Kenichiro Fujii
- National Institute of Agrobiological Sciences (NIAS),
2-1-2 Kannondai, Tsukuba, Ibaraki 305-8602,
Japan
| | - Setsuzo Yumoto
- NARO Institute of Crop Science,
2-1-18 Kannondai, Tsukuba, Ibaraki 305-8518,
Japan
| | - Masao Ishimoto
- National Institute of Agrobiological Sciences (NIAS),
2-1-2 Kannondai, Tsukuba, Ibaraki 305-8602,
Japan
| | - Tatsuhiko Shiraiwa
- Graduate School of Agriculture, Kyoto University,
Oiwake, Kitashirakawa, Sakyo, Kyoto 606-8502,
Japan
| | - Takashi Sayama
- National Institute of Agrobiological Sciences (NIAS),
2-1-2 Kannondai, Tsukuba, Ibaraki 305-8602,
Japan
| | - Akio Kikuchi
- National Agriculture and Food Research Organization (NARO) Tohoku Agricultural Research Center,
Uenodai, Kariwano, Daisen, Akita 019-2112,
Japan
| | - Takeshi Nishio
- Graduate School of Agricultural Science, Tohoku University,
1-1 Tsutsumidori-Amamiyamachi, Aoba, Sendai, Miyagi 981-8555,
Japan
- Corresponding author (e-mail: )
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21
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Funatsuki H, Suzuki M, Hirose A, Inaba H, Yamada T, Hajika M, Komatsu K, Katayama T, Sayama T, Ishimoto M, Fujino K. Molecular basis of a shattering resistance boosting global dissemination of soybean. Proc Natl Acad Sci U S A 2014; 111:17797-802. [PMID: 25468966 PMCID: PMC4273335 DOI: 10.1073/pnas.1417282111] [Citation(s) in RCA: 102] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Pod dehiscence (shattering) is essential for the propagation of wild plant species bearing seeds in pods but is a major cause of yield loss in legume and crucifer crops. Although natural genetic variation in pod dehiscence has been, and will be, useful for plant breeding, little is known about the molecular genetic basis of shattering resistance in crops. Therefore, we performed map-based cloning to unveil a major quantitative trait locus (QTL) controlling pod dehiscence in soybean. Fine mapping and complementation testing revealed that the QTL encodes a dirigent-like protein, designated as Pdh1. The gene for the shattering-resistant genotype, pdh1, was defective, having a premature stop codon. The functional gene, Pdh1, was highly expressed in the lignin-rich inner sclerenchyma of pod walls, especially at the stage of initiation in lignin deposition. Comparisons of near-isogenic lines indicated that Pdh1 promotes pod dehiscence by increasing the torsion of dried pod walls, which serves as a driving force for pod dehiscence under low humidity. A survey of soybean germplasm revealed that pdh1 was frequently detected in landraces from semiarid regions and has been extensively used for breeding in North America, the world's leading soybean producer. These findings point to a new mechanism for pod dehiscence involving the dirigent protein family and suggest that pdh1 has played a crucial role in the global expansion of soybean cultivation. Furthermore, the orthologs of pdh1, or genes with the same role, will possibly be useful for crop improvement.
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Affiliation(s)
- Hideyuki Funatsuki
- Crop Cold Tolerance Research Team, NARO (National Agricultural Research Organization) Hokkaido Agricultural Research Center, Hitsujigaoka 1, Toyohira-ku, Sapporo 062-8555, Japan; Department of Planning and General Administration, NARO Western Region Agricultural Research Center, 6-12-1, Nishifukatsu-cho, Fukuyama 721-8514, Japan;
| | - Masaya Suzuki
- Graduate School of Agriculture, Hokkaido University, Kita 9, Nishi 9, Kita-ku, Sapporo 060-8589, Japan
| | - Aya Hirose
- Crop Cold Tolerance Research Team, NARO (National Agricultural Research Organization) Hokkaido Agricultural Research Center, Hitsujigaoka 1, Toyohira-ku, Sapporo 062-8555, Japan
| | - Hiroki Inaba
- Graduate School of Agriculture, Hokkaido University, Kita 9, Nishi 9, Kita-ku, Sapporo 060-8589, Japan
| | - Tetsuya Yamada
- Field Crop Research Division, NARO Institute of Crop Science, 2-1-18, Kannondai, Tsukuba 305-8518, Japan
| | - Makita Hajika
- Field Crop Research Division, NARO Institute of Crop Science, 2-1-18, Kannondai, Tsukuba 305-8518, Japan
| | - Kunihiko Komatsu
- Crop Cold Tolerance Research Team, NARO (National Agricultural Research Organization) Hokkaido Agricultural Research Center, Hitsujigaoka 1, Toyohira-ku, Sapporo 062-8555, Japan
| | - Takeshi Katayama
- Faculty of Agriculture, Kagawa University, 2393 Ikenobe, Miki-cho, Kagawa 761-0795, Japan; and
| | - Takashi Sayama
- Crop Cold Tolerance Research Team, NARO (National Agricultural Research Organization) Hokkaido Agricultural Research Center, Hitsujigaoka 1, Toyohira-ku, Sapporo 062-8555, Japan; Agrogenomics Research Center, National Institute of Agrobiological Sciences, 2-1-2, Kannondai, Tsukuba 305-0856, Japan
| | - Masao Ishimoto
- Crop Cold Tolerance Research Team, NARO (National Agricultural Research Organization) Hokkaido Agricultural Research Center, Hitsujigaoka 1, Toyohira-ku, Sapporo 062-8555, Japan; Agrogenomics Research Center, National Institute of Agrobiological Sciences, 2-1-2, Kannondai, Tsukuba 305-0856, Japan
| | - Kaien Fujino
- Graduate School of Agriculture, Hokkaido University, Kita 9, Nishi 9, Kita-ku, Sapporo 060-8589, Japan;
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22
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Yamaguchi N, Sayama T, Yamazaki H, Miyoshi T, Ishimoto M, Funatsuki H. Quantitative trait loci associated with lodging tolerance in soybean cultivar 'Toyoharuka'. Breed Sci 2014; 64:300-8. [PMID: 25914584 PMCID: PMC4267304 DOI: 10.1270/jsbbs.64.300] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/26/2014] [Accepted: 08/20/2014] [Indexed: 05/10/2023]
Abstract
Lodging tolerance (LT) is an important trait for high yield and combine-harvesting efficiency in soybean [Glycine max (L.) Merr.]. Many previous studies have investigated quantitative trait loci (QTLs) for lodging score (LS) in soybean. Most of the investigated QTLs were located in the proximal region of maturity or growth habit loci. The aim of this study was to identify genetic factors for LT not associated with maturity or growth habit. QTL analysis was performed using a recombinant inbred line (RIL) population derived from a cross between 'Toyoharuka' (TH), a lodging-tolerant cultivar, and 'Toyomusume' (TM). The genotypes of TH and TM were estimated as both e1e2E3E4 and dt1. The average LS over 4 years was used for QTL analysis, identifying a major and stable QTL, qLS19-1, on chromosome 19. The LS of the near-isogenic line (NIL) with the TH allele at Sat_099, the nearest marker to qLS19-1, was significantly lower than the NIL with the TM allele at that position. The TH allele at Sat_099 rarely had a negative influence on seed yield or other agronomic traits in both NILs and the TM-backcrossed lines. Our results suggest that marker-assisted selection for qLS19-1 is effective for improving LT in breeding programs.
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Affiliation(s)
- Naoya Yamaguchi
- Hokkaido Research Organization Tokachi Agricultural Experiment Station,
2, Minami 9 sen, Shinsei, Memuro, Kasai, Hokkaido 082-0081,
Japan
- Corresponding author (e-mail: )
| | - Takashi Sayama
- National Institute of Agrobiological Sciences,
2-1-2, Kannondai, Tsukuba, Ibaraki 305-8602,
Japan
| | - Hiroyuki Yamazaki
- Hokkaido Research Organization Tokachi Agricultural Experiment Station,
2, Minami 9 sen, Shinsei, Memuro, Kasai, Hokkaido 082-0081,
Japan
- Present address: Hokkaido Research Organization Agricultural Research Department, Higashi 6 sen Kita 15 Gou, Naganuma, Yubari, Hokkaido 069-1395, Japan
| | - Tomoaki Miyoshi
- Hokkaido Research Organization Tokachi Agricultural Experiment Station,
2, Minami 9 sen, Shinsei, Memuro, Kasai, Hokkaido 082-0081,
Japan
| | - Masao Ishimoto
- National Institute of Agrobiological Sciences,
2-1-2, Kannondai, Tsukuba, Ibaraki 305-8602,
Japan
| | - Hideyuki Funatsuki
- NARO Western Region Agricultural Research Center,
6-12-1 Nishifukatsu, Fukuyama, Hiroshima 721-8514,
Japan
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23
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Yamada T, Shimada S, Hajika M, Hirata K, Takahashi K, Nagaya T, Hamaguchi H, Maekawa T, Sayama T, Hayashi T, Ishimoto M, Tanaka J. Major QTLs associated with green stem disorder insensitivity of soybean (Glycine max (L.) Merr.). Breed Sci 2014; 64:331-338. [PMID: 25914587 PMCID: PMC4267307 DOI: 10.1270/jsbbs.64.331] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/29/2013] [Accepted: 08/29/2014] [Indexed: 06/04/2023]
Abstract
Green stem disorder (GSD) is one of the most serious syndromes affecting soybean (Glycine max) cultivation in Japan. In GSD, stems remain green even when pods mature. When soybean plants develop GSD, seed surfaces are soiled by tissue fluid and seed quality is deteriorated during machine harvesting. We performed quantitative trait locus (QTL) analyses for GSD insensitivity using recombinant inbred lines (RILs; n = 154) derived from a cross between an insensitive line ('Touhoku 129') and a sensitive leading cultivar ('Tachinagaha') during a 6-year evaluation. Three effective QTLs were detected. The influences of these QTLs were in the following order: qGSD1 (LG_H) > qGSD2 (LG_F) > qGSD3 (LG_L). At these three QTLs, 'Touhoku 129' genotypes exhibited more GSD insensitivity than 'Tachinagaha' genotypes. The lower incidence of GSD for 'Touhoku129' was attributable primarily to these three QTLs because RILs harboring a 'Touhoku 129' genotype at the three QTLs exhibited a GSD incidence similar to that of 'Touhoku 129.' Although a limitation of this study is that only one mapping population was evaluated, this QTL information and the flanking markers of these QTLs would be effective tools for resolving GSD in soybean breeding programs.
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Affiliation(s)
- Tetsuya Yamada
- NARO Institute of Crop Science (NICS),
2-1-18 Kannondai, Tsukuba, Ibaraki 305-8518,
Japan
| | - Shinji Shimada
- NARO Agricultural Research Center (NARO/ARC),
3-1-1 Kannondai, Tsukuba, Ibaraki 305-8517,
Japan
| | - Makita Hajika
- NARO Institute of Crop Science (NICS),
2-1-18 Kannondai, Tsukuba, Ibaraki 305-8518,
Japan
| | - Kaori Hirata
- NARO Institute of Crop Science (NICS),
2-1-18 Kannondai, Tsukuba, Ibaraki 305-8518,
Japan
- NARO Tohoku Agricultural Research Center (NARO/TARC),
297 Uenodai, Kariwano, Daisen, Akita 019-2112,
Japan
| | - Koji Takahashi
- NARO Institute of Crop Science (NICS),
2-1-18 Kannondai, Tsukuba, Ibaraki 305-8518,
Japan
| | - Taiko Nagaya
- NARO Institute of Crop Science (NICS),
2-1-18 Kannondai, Tsukuba, Ibaraki 305-8518,
Japan
| | - Hideo Hamaguchi
- NARO Agricultural Research Center (NARO/ARC),
3-1-1 Kannondai, Tsukuba, Ibaraki 305-8517,
Japan
| | - Tomiya Maekawa
- NARO Agricultural Research Center (NARO/ARC),
3-1-1 Kannondai, Tsukuba, Ibaraki 305-8517,
Japan
| | - Takashi Sayama
- National Institute of Agrobiological Science (NIAS),
2-1-2 Kannondai, Tsukuba, Ibaraki 305-8602,
Japan
| | - Takeshi Hayashi
- NARO Agricultural Research Center (NARO/ARC),
3-1-1 Kannondai, Tsukuba, Ibaraki 305-8517,
Japan
- Graduate School of Life and Environmental Science, University of Tsukuba,
2-1-18 Kannondai, Tsukuba, Ibaraki 305-8518,
Japan
| | - Masao Ishimoto
- National Institute of Agrobiological Science (NIAS),
2-1-2 Kannondai, Tsukuba, Ibaraki 305-8602,
Japan
| | - Junichi Tanaka
- NARO Institute of Crop Science (NICS),
2-1-18 Kannondai, Tsukuba, Ibaraki 305-8518,
Japan
- Graduate School of Life and Environmental Science, University of Tsukuba,
2-1-18 Kannondai, Tsukuba, Ibaraki 305-8518,
Japan
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24
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Hirata K, Masuda R, Tsubokura Y, Yasui T, Yamada T, Takahashi K, Nagaya T, Sayama T, Ishimoto M, Hajika M. Identification of quantitative trait loci associated with boiled seed hardness in soybean. Breed Sci 2014; 64:362-70. [PMID: 25914591 PMCID: PMC4267311 DOI: 10.1270/jsbbs.64.362] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/09/2014] [Accepted: 09/21/2014] [Indexed: 05/06/2023]
Abstract
Boiled seed hardness is an important factor in the processing of soybean food products such as nimame and natto. Little information is available on the genetic basis for boiled seed hardness, despite the wide variation in this trait. DNA markers linked to the gene controlling this trait should be useful in soybean breeding programs because of the difficulty of its evaluation. In this report, quantitative trait locus (QTL) analysis was performed to reveal the genetic factors associated with boiled seed hardness using a recombinant inbred line population developed from a cross between two Japanese cultivars, 'Natto-shoryu' and 'Hyoukei-kuro 3', which differ largely in boiled seed hardness, which in 'Natto-shoryu' is about twice that of 'Hyoukei-kuro 3'. Two significantly stable QTLs, qHbs3-1 and qHbs6-1, were identified on chromosomes 3 and 6, for which the 'Hyoukei-kuro 3' alleles contribute to decrease boiled seed hardness for both QTLs. qHbs3-1 also showed significant effects in progeny of a residual heterozygous line and in a different segregating population. Given its substantial effect on boiled seed hardness, SSR markers closely linked to qHbs3-1, such as BARCSOYSSR_03_0165 and BARCSOYSSR_03_0185, could be useful for marker-assisted selection in soybean breeding.
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Affiliation(s)
- Kaori Hirata
- NARO Tohoku Agricultural Research Center,
297 Uenodai, Kariwano, Daisen, Akita 019-2112,
Japan
- NARO Institute of Crop Science (NICS),
2-1-18 Kannondai, Tsukuba, Ibaraki 305-8518,
Japan
- Corresponding author (e-mail: )
| | - Ryoichi Masuda
- NARO Institute of Crop Science (NICS),
2-1-18 Kannondai, Tsukuba, Ibaraki 305-8518,
Japan
| | - Yasutaka Tsubokura
- Snow Brand Seed Company, Limited,
634 Naganumahara, Inage, Chiba 263-0001,
Japan
| | - Takeshi Yasui
- NARO Institute of Crop Science (NICS),
2-1-18 Kannondai, Tsukuba, Ibaraki 305-8518,
Japan
| | - Tetsuya Yamada
- NARO Institute of Crop Science (NICS),
2-1-18 Kannondai, Tsukuba, Ibaraki 305-8518,
Japan
| | - Koji Takahashi
- NARO Institute of Crop Science (NICS),
2-1-18 Kannondai, Tsukuba, Ibaraki 305-8518,
Japan
| | - Taiko Nagaya
- NARO Institute of Crop Science (NICS),
2-1-18 Kannondai, Tsukuba, Ibaraki 305-8518,
Japan
| | - Takashi Sayama
- National Institute of Agrobiological Sciences,
2-1-2 Kannondai, Tsukuba, Ibaraki 305-8602,
Japan
| | - Masao Ishimoto
- National Institute of Agrobiological Sciences,
2-1-2 Kannondai, Tsukuba, Ibaraki 305-8602,
Japan
| | - Makita Hajika
- NARO Institute of Crop Science (NICS),
2-1-18 Kannondai, Tsukuba, Ibaraki 305-8518,
Japan
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25
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Hayashi M, Shiro S, Kanamori H, Mori-Hosokawa S, Sasaki-Yamagata H, Sayama T, Nishioka M, Takahashi M, Ishimoto M, Katayose Y, Kaga A, Harada K, Kouchi H, Saeki Y, Umehara Y. A thaumatin-like protein, Rj4, controls nodule symbiotic specificity in soybean. Plant Cell Physiol 2014; 55:1679-89. [PMID: 25059584 DOI: 10.1093/pcp/pcu099] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/16/2023]
Abstract
Soybeans exhibit a nitrogen-fixing symbiosis with soil bacteria of the genera Bradyrhizobium and Ensifer/Sinorhizobium in a unique organ, the root nodule. It is well known that nodulation of soybean is controlled by several host genes referred to as Rj (rj) genes. Among these genes, a dominant allele, Rj4, restricts nodulation with specific bacterial strains such as B. elkanii USDA61 and B. japonicum Is-34. These incompatible strains fail to invade the host epidermal cells as revealed by observations using DsRed-labeled bacteria. Here, we describe the molecular identification of the Rj4 gene by using map-based cloning with several mapping populations. The Rj4 gene encoded a thaumatin-like protein (TLP) that belongs to pathogenesis-related (PR) protein family 5. In rj4/rj4 genotype soybeans and wild soybeans, we found six missense mutations and two consecutive amino acid deletions in the rj4 gene as compared with the Rj4 allele. We also found, using hairy root transformation, that the rj4/rj4 genotype soybeans were fully complemented by the expression of the Rj4 gene. Whereas the expression of many TLPs and other PR proteins is induced by biotic/abiotic stress, Rj4 gene expression appears to be constitutive in roots including root nodules.
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Affiliation(s)
- Masaki Hayashi
- National Institute of Agrobiological Sciences, 2-1-2 Kannondai, Tsukuba, Ibaraki, 305-8602 Japan
| | - Sokichi Shiro
- Faculty of Agriculture, University of Miyazaki, 1-1 Gakuen Kibanadai-Nishi, Miyazaki, Miyazaki, 889-2192 Japan Department of Agriculture and Forest Sciences, Faculty of Life and Environmental Science, Shimane University, 1060 Nishikawatsu-cho, Matsue, Shimane, 690-8504 Japan
| | - Hiroyuki Kanamori
- National Institute of Agrobiological Sciences, 2-1-2 Kannondai, Tsukuba, Ibaraki, 305-8602 Japan
| | - Satomi Mori-Hosokawa
- National Institute of Agrobiological Sciences, 2-1-2 Kannondai, Tsukuba, Ibaraki, 305-8602 Japan
| | - Harumi Sasaki-Yamagata
- National Institute of Agrobiological Sciences, 2-1-2 Kannondai, Tsukuba, Ibaraki, 305-8602 Japan
| | - Takashi Sayama
- National Institute of Agrobiological Sciences, 2-1-2 Kannondai, Tsukuba, Ibaraki, 305-8602 Japan
| | - Miki Nishioka
- National Institute of Agrobiological Sciences, 2-1-2 Kannondai, Tsukuba, Ibaraki, 305-8602 Japan
| | - Masakazu Takahashi
- National Agriculture and Food Research Organization, Kyushu Okinawa Agricultural Research Center, 2421 Suya, Koshi, Kumamoto, 861-1192 Japan
| | - Masao Ishimoto
- National Institute of Agrobiological Sciences, 2-1-2 Kannondai, Tsukuba, Ibaraki, 305-8602 Japan
| | - Yuichi Katayose
- National Institute of Agrobiological Sciences, 2-1-2 Kannondai, Tsukuba, Ibaraki, 305-8602 Japan
| | - Akito Kaga
- National Institute of Agrobiological Sciences, 2-1-2 Kannondai, Tsukuba, Ibaraki, 305-8602 Japan
| | - Kyuya Harada
- National Institute of Agrobiological Sciences, 2-1-2 Kannondai, Tsukuba, Ibaraki, 305-8602 Japan
| | - Hiroshi Kouchi
- National Institute of Agrobiological Sciences, 2-1-2 Kannondai, Tsukuba, Ibaraki, 305-8602 Japan Department of Life Science, International Christian University, 3-10-2, Osawa, Mitaka, Tokyo, 181-8585 Japan
| | - Yuichi Saeki
- Faculty of Agriculture, University of Miyazaki, 1-1 Gakuen Kibanadai-Nishi, Miyazaki, Miyazaki, 889-2192 Japan
| | - Yosuke Umehara
- National Institute of Agrobiological Sciences, 2-1-2 Kannondai, Tsukuba, Ibaraki, 305-8602 Japan
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26
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Kato S, Sayama T, Fujii K, Yumoto S, Kono Y, Hwang TY, Kikuchi A, Takada Y, Tanaka Y, Shiraiwa T, Ishimoto M. A major and stable QTL associated with seed weight in soybean across multiple environments and genetic backgrounds. Theor Appl Genet 2014; 127:1365-74. [PMID: 24718925 DOI: 10.1007/s00122-014-2304-0] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/19/2013] [Accepted: 03/24/2014] [Indexed: 05/05/2023]
Abstract
KEY MESSAGE We detected a QTL for single seed weight in soybean that was stable across multiple environments and genetic backgrounds with the use of two recombinant inbred line populations. Single seed weight (SSW) in soybean is a key determinant of both seed yield and the quality of soy food products, and it exhibits wide variation. SSW is under genetic control, but the molecular mechanisms of such control remain unclear. We have now investigated quantitative trait loci (QTLs) for SSW in soybean and have identified such a QTL that is stable across multiple environments and genetic backgrounds. Two populations of 225 and 250 recombinant inbred lines were developed from crosses between Japanese and US cultivars of soybean that differ in SSW by a factor of ~2, and these populations were grown in at least three different environments. A whole-genome panel comprising 304 simple sequence repeat (SSR) loci was applied to mapping in each population. We identified 15 significant QTLs for SSW dispersed among 11 chromosomes in the two populations. One QTL located between Sat_284 and Sat_292 on chromosome 17 was detected (3.6 < LOD < 14.1) in both populations grown in all environments. This QTL, tentatively designated qSw17-1, accounted for 9.4-20.9 % of phenotypic variation in SSW, with a dominant allele being associated with increased SSW. Given its substantial effect on SSW, qSw17-1 is an attractive target for positional cloning, and SSR markers closely associated with this locus may prove useful for marker-assisted selection for SSW control in soybean.
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Affiliation(s)
- Shin Kato
- National Agriculture and Food Research Organization (NARO) Tohoku Region Agricultural Research Center, 297 Uenodai, Kariwano, Daisen, Akita, 019-2112, Japan
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27
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Takada Y, Sasama H, Sayama T, Kikuchi A, Kato S, Ishimoto M, Tsukamoto C. Genetic and chemical analysis of a key biosynthetic step for soyasapogenol A, an aglycone of group A saponins that influence soymilk flavor. Theor Appl Genet 2013; 126:721-31. [PMID: 23229125 DOI: 10.1007/s00122-012-2013-5] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/06/2012] [Accepted: 10/24/2012] [Indexed: 06/01/2023]
Abstract
Although certain saponins in soybean seeds have been reported to have health benefits, group A acetyl saponins cause undesirable bitter and astringent tastes in soy products. Therefore, reduction or elimination of group A saponins is an important target for soybean breeders. A wide survey of cultivated and wild soybean germplasm identified a mutant line that lacked group A saponins. The absence of soyasapogenol A, a group A saponin aglycone, is controlled by a single recessive allele, sg-5 that mapped genetically near the SSR marker, Satt117, on soybean chromosome 15 (linkage group E). The locus is epistatic to Sg-1, which controls the terminal sugar variation on the C-22 sugar chain of soyasapogenol A, and allelic differences at this locus lead to changes in the amount of DDMP saponins and their derivatives group B and E products. These findings provide a new insight into the biosynthetic pathway of soybean saponins, and identify a genetic approach that can be applied to improve the quality of foods produced from soybean.
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Affiliation(s)
- Yoshitake Takada
- National Agricultural Research Organization (NARO) Western Region Agricultural Research Center, 1-3-1 Senyu, Zentsuji, Kagawa, 765-8508, Japan
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28
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Sayama T, Ono E, Takagi K, Takada Y, Horikawa M, Nakamoto Y, Hirose A, Sasama H, Ohashi M, Hasegawa H, Terakawa T, Kikuchi A, Kato S, Tatsuzaki N, Tsukamoto C, Ishimoto M. The Sg-1 glycosyltransferase locus regulates structural diversity of triterpenoid saponins of soybean. Plant Cell 2012; 24:2123-38. [PMID: 22611180 PMCID: PMC3442591 DOI: 10.1105/tpc.111.095174] [Citation(s) in RCA: 70] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/24/2011] [Revised: 04/20/2012] [Accepted: 04/30/2012] [Indexed: 05/18/2023]
Abstract
Triterpene saponins are a diverse group of biologically functional products in plants. Saponins usually are glycosylated, which gives rise to a wide diversity of structures and functions. In the group A saponins of soybean (Glycine max), differences in the terminal sugar species located on the C-22 sugar chain of an aglycone core, soyasapogenol A, were observed to be under genetic control. Further genetic analyses and mapping revealed that the structural diversity of glycosylation was determined by multiple alleles of a single locus, Sg-1, and led to identification of a UDP-sugar-dependent glycosyltransferase gene (Glyma07g38460). Although their sequences are highly similar and both glycosylate the nonacetylated saponin A0-αg, the Sg-1(a) allele encodes the xylosyltransferase UGT73F4, whereas Sg-1(b) encodes the glucosyltransferase UGT73F2. Homology models and site-directed mutagenesis analyses showed that Ser-138 in Sg-1(a) and Gly-138 in Sg-1(b) proteins are crucial residues for their respective sugar donor specificities. Transgenic complementation tests followed by recombinant enzyme assays in vitro demonstrated that sg-1(0) is a loss-of-function allele of Sg-1. Considering that the terminal sugar species in the group A saponins are responsible for the strong bitterness and astringent aftertastes of soybean seeds, our findings herein provide useful tools to improve commercial properties of soybean products.
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Affiliation(s)
- Takashi Sayama
- National Institute of Agrobiological Sciences, Tsukuba, Ibaraki 305-8602, Japan
| | - Eiichiro Ono
- Institute for Plant Science, Suntory Business Expert Ltd., Shimamoto, Mishima, Osaka 618-8503, Japan
| | - Kyoko Takagi
- National Institute of Agrobiological Sciences, Tsukuba, Ibaraki 305-8602, Japan
| | - Yoshitake Takada
- National Agricultural Research Center for Western Region, Zentsuji, Kagawa 765-8508, Japan
| | - Manabu Horikawa
- Bioorganic Research Institute, Suntory Foundation for Life Sciences, Shimamoto, Mishima, Osaka 618-8503, Japan
| | - Yumi Nakamoto
- National Agricultural Research Center for Hokkaido Region, Toyohira, Sapporo, Hokkaido 062-8555, Japan
| | - Aya Hirose
- National Agricultural Research Center for Hokkaido Region, Toyohira, Sapporo, Hokkaido 062-8555, Japan
| | - Hiroko Sasama
- National Institute of Agrobiological Sciences, Tsukuba, Ibaraki 305-8602, Japan
| | - Mihoko Ohashi
- National Agricultural Research Center for Hokkaido Region, Toyohira, Sapporo, Hokkaido 062-8555, Japan
| | | | | | - Akio Kikuchi
- National Agricultural Research Center for Tohoku Region, Kariwano, Daisen, Akita 019-2112, Japan
| | - Shin Kato
- National Agricultural Research Center for Tohoku Region, Kariwano, Daisen, Akita 019-2112, Japan
| | - Nana Tatsuzaki
- Graduate School of Agriculture, Iwate University, Morioka, Iwate 020-8550, Japan
| | - Chigen Tsukamoto
- Graduate School of Agriculture, Iwate University, Morioka, Iwate 020-8550, Japan
| | - Masao Ishimoto
- National Institute of Agrobiological Sciences, Tsukuba, Ibaraki 305-8602, Japan
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29
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Hirota T, Sayama T, Yamasaki M, Sasama H, Sugimoto T, Ishimoto M, Yoshida S. Diversity and population structure of black soybean landraces originating from Tanba and neighboring regions. Breed Sci 2012; 61:593-601. [PMID: 23136497 PMCID: PMC3406802 DOI: 10.1270/jsbbs.61.593] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/20/2011] [Accepted: 10/14/2011] [Indexed: 05/23/2023]
Abstract
Black soybean landraces that had been cultivated in Tanba region and the neighboring regions and conserved black soybean landraces, including those from other regions in Japan, were used in this study. The polymorphisms of 78 SSR markers in nuclear DNA and 6 SSRs in chloroplast DNA were analyzed in the black soybean landrace populations. The result of phylogenic analysis revealed that the black soybeans can be classified into six clades. The landraces originating from Tanba region were classed into first and second clades, and two chloroplast genotypes were found in the population of black soybeans from the Tanba region. Genotype A chloroplast was predominantly identified in major populations of the Tanba, while genotype B was widely distributed in the black soybean population. Population structure analysis in the Japanese black soybean accessions inferred there are six groups. The black soybean landrace from the Tanba region was classified into three groups, mainly corresponding to the distance-based phylogenic results. The two groups were probably derived from different ancestors with Type A and B chloroplast genomes, respectively, whereas the other group showed both types of chloroplast genome. The admixture situations suggested that the landraces in the main group have been widely cultivated in Tanba region, while the landraces that belong to other groups were cultivated in localized area. Several phenotypes were compared among genotype groups, dividing into two sub-groups: founder sub-group and admixed sub-group. Phenotypic differences were observed between founder landraces in group 1 and group 3. On the other hand, landraces in admixture landraces in group 1 and group 2 segregated for several traits, while founder landraces in group 1 were stabled for each trait. These observations suggest that gene flow events have occurred between different founder landraces.
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Affiliation(s)
- Tomoko Hirota
- Hokubu Agricultural Institute, Hyogo Prefectural Research Center of Agriculture, Forestry and Fisheries, Asago, Hyogo 669-5254, Japan
| | - Takashi Sayama
- National Institute of Agrobiological Sciences, 2-1-2 Kannondai, Tsukuba, Ibaraki 305-8602, Japan
| | - Masanori Yamasaki
- Food Resources Education and Research Center, Kobe University, Kasai, Hyogo 675-2103, Japan
| | - Hiroko Sasama
- National Institute of Agrobiological Sciences, 2-1-2 Kannondai, Tsukuba, Ibaraki 305-8602, Japan
| | - Takuma Sugimoto
- Hyogo Prefectural Research Center of Agriculture, Forestry and Fisheries, Kasai, Hyogo 679-0198, Japan
| | - Masao Ishimoto
- National Institute of Agrobiological Sciences, 2-1-2 Kannondai, Tsukuba, Ibaraki 305-8602, Japan
| | - Shinya Yoshida
- Hyogo Prefectural Research Center of Agriculture, Forestry and Fisheries, Kasai, Hyogo 679-0198, Japan
- Graduate school of agriculture, Kobe University, Rokkoudai, Nada, Kobe, Hyogo 675-8501, Japan
- Corresponding author (e-mail: )
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30
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Saruta M, Takada Y, Kikuchi A, Yamada T, Komatsu K, Sayama T, Ishimoto M, Okabe A. Screening and genetic analysis of resistance to peanut stunt virus in soybean: identification of the putative Rpsv1 resistance gene. Breed Sci 2012; 61:625-30. [PMID: 23136501 PMCID: PMC3406795 DOI: 10.1270/jsbbs.61.625] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/28/2011] [Accepted: 04/11/2011] [Indexed: 05/25/2023]
Abstract
The peanut stunt virus (PSV) causes yield losses in soybean and reduced seed quality due to seed mottling. The objectives of this study were to determine the phenotypic reactions of soybean germplasms to inoculation with two PSV isolates (PSV-K, PSV-T), the inheritance of PSV resistance in soybean cultivars, and the locus of the PSV resistance gene. We investigated the PSV resistance of 132 soybean cultivars to both PSV isolates; of these, 73 cultivars exhibited resistance to both PSV isolates. Three resistant cultivars (Harosoy, Tsurunotamago 1 and Hyuga) were crossed with the susceptible cultivar Enrei. The crosses were evaluated in the F(1), F(2) and F(2:3) generations for their reactions to inoculation with the two PSV isolates. In an allelism test, we crossed Harosoy and Tsurunotamago 1 with the resistant cultivar Hyuga. The results revealed that PSV resistance in these cultivars is controlled by a single dominant gene at the same locus. We have proposed Rpsv1, as the name of the resistance gene in Hyuga. We also constructed a linkage map using recombinant inbred lines between Hyuga × Enrei using 176 SSR markers. We mapped Rpsv1 near the Satt435 locus on soybean chromosome 7.
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Affiliation(s)
- Masayasu Saruta
- NARO Western Region Agricultural Research Center, 1-3-1 Senyuu, Zentsuuji, Kagawa 765-8508, Japan
| | - Yoshitake Takada
- NARO Western Region Agricultural Research Center, 1-3-1 Senyuu, Zentsuuji, Kagawa 765-8508, Japan
| | - Akio Kikuchi
- NARO Tohoku Agricultural Research Center, 297 Uenodai, Kariwano, Daisen, Akita 019-2112, Japan
| | - Tetsusya Yamada
- NARO Institute of Crop Science, 2-1-18 Kannondai, Tsukuba, Ibaraki 305-8518, Japan
| | - Kunihiko Komatsu
- NARO Hokkaido Agricultural Research Center, 1 Hitsujigaoka, Toyohira, Sapporo, Hokkaido 062-8555, Japan
| | - Takashi Sayama
- NARO Hokkaido Agricultural Research Center, 1 Hitsujigaoka, Toyohira, Sapporo, Hokkaido 062-8555, Japan
| | - Masao Ishimoto
- NARO Hokkaido Agricultural Research Center, 1 Hitsujigaoka, Toyohira, Sapporo, Hokkaido 062-8555, Japan
| | - Akinori Okabe
- NARO Western Region Agricultural Research Center, 1-3-1 Senyuu, Zentsuuji, Kagawa 765-8508, Japan
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31
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Ohnishi S, Miyake N, Takeuchi T, Kousaka F, Hiura S, Kanehira O, Saito M, Sayama T, Higashi A, Ishimoto M, Tanaka Y, Fujita S. Fine mapping of foxglove aphid (Aulacorthum solani) resistance gene Raso1 in soybean and its effect on tolerance to Soybean dwarf virus transmitted by foxglove aphid. Breed Sci 2012; 61:618-24. [PMID: 23136500 PMCID: PMC3406790 DOI: 10.1270/jsbbs.61.618] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/28/2011] [Accepted: 09/26/2011] [Indexed: 05/04/2023]
Abstract
Soybean dwarf virus (SbDV) causes serious dwarfing, yellowing and sterility in soybean (Glycine max). The soybean cv. Adams is tolerant to SbDV infection in the field and exhibits antibiosis to foxglove aphid (Aulacorthum solani), which transmits SbDV. This antibiosis (termed "aphid resistance") is required for tolerance to SbDV in the field in segregated progenies of Adams. A major quantitative trait locus, Raso1, is reported for foxglove aphid resistance. Our objectives were to fine map Raso1 and to reveal whether Raso1 alone is sufficient to confer both aphid resistance and SbDV tolerance. We introduced Raso1 into cv. Toyomusume by backcrossing and investigated the degree of aphid antibiosis to foxglove aphid and the degree of tolerance to SbDV in the field. All Raso1-introduced backcross lines showed aphid resistance. Interestingly, only one Raso1-introduced backcross line (TM-1386) showed tolerance to SbDV in the field. The results demonstrated Raso1 alone is sufficient to confer aphid resistance but insufficient for SbDV tolerance. Tolerance to SbDV was indicated to require additional gene(s) to Raso1. Additionally, Raso1 was mapped to a 63-kb interval on chromosome 3 of the Williams 82 sequence assembly (Glyma1). This interval includes a nucleotide-binding site-leucine-rich repeat encoding gene and two other genes in the Williams 82 soybean genome sequence.
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Affiliation(s)
- Shizen Ohnishi
- Hokkaido Research Organization Central Agricultural Experiment Station, Naganuma, Yubari, Hokkaido 069-1395, Japan
| | - Noriyuki Miyake
- Hokkaido Research Organization Central Agricultural Experiment Station, Naganuma, Yubari, Hokkaido 069-1395, Japan
| | - Toru Takeuchi
- Hokkaido Research Organization Central Agricultural Experiment Station, Naganuma, Yubari, Hokkaido 069-1395, Japan
| | - Fumiko Kousaka
- Hokkaido Research Organization Central Agricultural Experiment Station, Naganuma, Yubari, Hokkaido 069-1395, Japan
| | - Satoshi Hiura
- Hokkaido Research Organization Central Agricultural Experiment Station, Naganuma, Yubari, Hokkaido 069-1395, Japan
| | - Osamu Kanehira
- Hokkaido Research Organization Central Agricultural Experiment Station, Naganuma, Yubari, Hokkaido 069-1395, Japan
| | - Miki Saito
- Hokkaido Research Organization Central Agricultural Experiment Station, Naganuma, Yubari, Hokkaido 069-1395, Japan
| | - Takashi Sayama
- National Institute of Agrobiological Sciences, 2-1-2 Kannondai, Tsukuba, Ibaraki 305-8602, Japan
- National Agricultural Research Center for Hokkaido Region, Hitsujigaoka, Toyohira, Sapporo, Hokkaido 062-8555, Japan
| | - Ayako Higashi
- National Agricultural Research Center for Hokkaido Region, Hitsujigaoka, Toyohira, Sapporo, Hokkaido 062-8555, Japan
| | - Masao Ishimoto
- National Institute of Agrobiological Sciences, 2-1-2 Kannondai, Tsukuba, Ibaraki 305-8602, Japan
- National Agricultural Research Center for Hokkaido Region, Hitsujigaoka, Toyohira, Sapporo, Hokkaido 062-8555, Japan
| | - Yoshinori Tanaka
- Hokkaido Research Organization Central Agricultural Experiment Station, Naganuma, Yubari, Hokkaido 069-1395, Japan
| | - Shohei Fujita
- Hokkaido Research Organization Central Agricultural Experiment Station, Naganuma, Yubari, Hokkaido 069-1395, Japan
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32
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Yamada T, Hajika M, Yamada N, Hirata K, Okabe A, Oki N, Takahashi K, Seki K, Okano K, Fujita Y, Kaga A, Shimizu T, Sayama T, Ishimoto M. Effects on flowering and seed yield of dominant alleles at maturity loci E2 and E3 in a Japanese cultivar, Enrei. Breed Sci 2012; 61:653-60. [PMID: 23136505 PMCID: PMC3406789 DOI: 10.1270/jsbbs.61.653] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2011] [Accepted: 12/06/2011] [Indexed: 05/21/2023]
Abstract
'Enrei' is the second leading variety of soybean (Glycine max (L.) Merr.) in Japan. Its cultivation area is mainly restricted to the Hokuriku region. In order to expand the adaptability of 'Enrei', we developed two near-isogenic lines (NILs) of 'Enrei' for the dominant alleles controlling late flowering at the maturity loci, E2 and E3, by backcrossing with marker-assisted selection. The resultant NILs and the original variety were evaluated for flowering, maturity, seed productivity and other agronomic traits in five different locations. Expectedly, NILs with E2 or E3 alleles flowered later than the original variety in most locations. These NILs produced comparatively larger plants in all locations. Seed yields were improved by E2 and E3 in the southern location or in late-sowing conditions, whereas the NIL for E2 exhibited almost the same or lower productivity in the northern locations due to higher degrees of lodging. Seed quality-related traits, such as 100-seed weight and protein content, were not significantly different between the original variety and its NILs. These results suggest that the modification of genotypes at maturity loci provides new varieties that are adaptive to environments of different latitudes while retaining almost the same seed quality as that of the original.
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Affiliation(s)
- Tetsuya Yamada
- National Agriculture and Food Research Organization Institute of Crop Science (NICS), 2-1-18 Kannondai, Tsukuba, Ibaraki 305-8518, Japan
- Corresponding author (e-mail: )
| | - Makita Hajika
- National Agriculture and Food Research Organization Institute of Crop Science (NICS), 2-1-18 Kannondai, Tsukuba, Ibaraki 305-8518, Japan
| | - Naohiro Yamada
- National Agriculture and Food Research Organization Institute of Crop Science (NICS), 2-1-18 Kannondai, Tsukuba, Ibaraki 305-8518, Japan
| | - Kaori Hirata
- National Agriculture and Food Research Organization Institute of Crop Science (NICS), 2-1-18 Kannondai, Tsukuba, Ibaraki 305-8518, Japan
| | - Akinori Okabe
- National Agriculture and Food Research Organization Western Region Agricultural Research Center (NARO/WARC), 1-3-1 Senyuu, Zentsuji, Kagawa 765-8508, Japan
| | - Nobuhiko Oki
- National Agriculture and Food Research Organization Kyushu Okinawa Agricultural Research Center (NARO/KARC), 2421 Suya, Koshi, Kumamoto 861-1192, Japan
| | - Koji Takahashi
- Nagano Prefecture Vegetable and Ornamental Crops Experimental Station, 1066-1 Souga, Shiojiri, Nagano 399-6461, Japan
| | - Kousuke Seki
- Nagano Prefecture Vegetable and Ornamental Crops Experimental Station, 1066-1 Souga, Shiojiri, Nagano 399-6461, Japan
| | - Katsunori Okano
- Plant Biotechnology Institute, Ibaraki Agricultural Center, 3402 Kamikunii, Mito, Ibaraki 311-4203, Japan
| | - Yoichi Fujita
- Niigata Agricultural Research Institute, 857 Nagakuramachi, Nagaoka, Niigata 940-0826, Japan
| | - Akito Kaga
- National Institute of Agricultural Science, 2-1-2 Kannondai, Tsukuba, Ibaraki 305-8602, Japan
| | - Takehiko Shimizu
- Institute of Society for Techno-Innovation of Agriculture, Forestry and Fisheries (STAFF), 446-1 Ippaizuka, Kamiyokoba, Tsukuba, Ibaraki 305-0854, Japan
| | - Takashi Sayama
- National Institute of Agricultural Science, 2-1-2 Kannondai, Tsukuba, Ibaraki 305-8602, Japan
| | - Masao Ishimoto
- National Institute of Agricultural Science, 2-1-2 Kannondai, Tsukuba, Ibaraki 305-8602, Japan
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33
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Komatsu K, Hwang TY, Takahashi M, Sayama T, Funatsuki H, Oki N, Ishimoto M. Identification of QTL controlling post-flowering period in soybean. Breed Sci 2012; 61:646-52. [PMID: 23136504 PMCID: PMC3406778 DOI: 10.1270/jsbbs.61.646] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/08/2011] [Accepted: 10/25/2011] [Indexed: 05/25/2023]
Abstract
The length of the reproductive period affects the grain yield of soybean (Glycine max [L.] Merr), and genetic control of the period might contribute to yield improvement. To detect genetic factor(s) controlling the reproductive period, a population of recombinant inbred lines (RILs) was developed from a cross between Japanese landrace 'Ippon-Sangoh' and, Japanese cultivar 'Fukuyutaka' which differ in their duration from flowering to maturation (DFM) relative to the difference in the duration from sowing to flowering (DSF). In the RIL population, the DFM correlated poorly (r = -0.16 to 0.34) with the DSF in all field trials over 3 years. Two stable QTLs for the DFM on chromosomes (Chr-) 10 and 11 as well as two stable QTLs for the DSF on Chr-10 and -16 were identified. The QTL on Chr-11 for the reproductive period (designated as qDfm1; quantitative trait locus for duration from flowering to maturation 1) affected all three trials, and the difference in the DFM between the Fukuyutaka and Ippon-Sangoh was mainly accounted for qDfm1, in which the Fukuyutaka allele promoted a longer period. qDfm1 affected predominantly the reproductive period, and thus it might be possible to alter the period with little influence on the vegetative period.
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Affiliation(s)
- Kunihiko Komatsu
- National Agricultural Research Center for Hokkaido Region, 1 Hitsujigaoka, Toyohira, Sapporo, Hokkaido 062-8555, Japan
| | - Tae-Young Hwang
- National Agricultural Research Center for Hokkaido Region, 1 Hitsujigaoka, Toyohira, Sapporo, Hokkaido 062-8555, Japan
| | - Masakazu Takahashi
- National Agricultural Research Center for Kyushu-Okinawa Region, 2421 Suya, Koshi, Kumamoto 861-0092, Japan
| | - Takashi Sayama
- National Agricultural Research Center for Hokkaido Region, 1 Hitsujigaoka, Toyohira, Sapporo, Hokkaido 062-8555, Japan
- National Institute of Agrobiological Sciences, 2-1-2 Kannondai, Tsukuba, Ibaraki 305-8602, Japan
| | - Hideyuki Funatsuki
- National Agricultural Research Center for Hokkaido Region, 1 Hitsujigaoka, Toyohira, Sapporo, Hokkaido 062-8555, Japan
| | - Nobuhiko Oki
- National Agricultural Research Center for Kyushu-Okinawa Region, 2421 Suya, Koshi, Kumamoto 861-0092, Japan
| | - Masao Ishimoto
- National Agricultural Research Center for Hokkaido Region, 1 Hitsujigaoka, Toyohira, Sapporo, Hokkaido 062-8555, Japan
- National Institute of Agrobiological Sciences, 2-1-2 Kannondai, Tsukuba, Ibaraki 305-8602, Japan
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Oki N, Komatsu K, Sayama T, Ishimoto M, Takahashi M, Takahashi M. Genetic analysis of antixenosis resistance to the common cutworm (Spodoptera litura Fabricius) and its relationship with pubescence characteristics in soybean (Glycine max (L.) Merr.). Breed Sci 2012; 61:608-17. [PMID: 23136499 PMCID: PMC3406796 DOI: 10.1270/jsbbs.61.608] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/15/2011] [Accepted: 11/01/2011] [Indexed: 05/25/2023]
Abstract
The common cutworm (CCW, Spodoptera litura Fabricius) is one of the most serious pests of soybean (Glycine max (L.) Merr.). Previously, two quantitative trait loci (QTLs) for antibiosis resistance to CCW, CCW-1 and CCW-2, were detected in the resistant cultivar Himeshirazu. In this study, we conducted an anti-xenosis bioassay using a recombinant inbred population derived from a cross between a susceptible cultivar Fukuyutaka and Himeshirazu to perform QTL analysis. Two QTLs for antixenosis resistance, qRslx1 and qRslx2, were identified on Chrs 7 and 12, and the resistant alleles of qRslx1 and qRslx2 were derived from Himeshirazu and Fukuyutaka, respectively. The position of qRslx1 is similar to that of CCW-1. We also analyzed pubescence characteristics because they have been reported to be associated with soybean insect resistance. Two QTLs for pubescence length (on Chrs 7 and 12) and two QTLs for pubescence density (on Chrs 1 and 12) were identified. The pubescence QTLs on Chrs 7 and 12 were located near qRslx1 and qRslx2, respectively. These results suggest that the antixenosis resistance could be controlled genetically by the identified QTLs and that the pubescence characteristics might contribute to the soybean antixenosis resistance to CCW.
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Affiliation(s)
- Nobuhiko Oki
- National Agriculture and Food Research Organization, Kyushu Okinawa Agricultural Research Center, 2421 Suya, Koushi, Kumamoto 861-1192, Japan
| | - Kunihiko Komatsu
- National Agriculture and Food Research Organization, Hokkaido Agricultural Research Center, 1 Hitsujigaoka, Toyohira, Sapporo, Hokkaido 062-8555, Japan
| | - Takashi Sayama
- National Institute of Agrobiological Sciences, 2-1-2 Kannondai, Tsukuba, Ibaraki 305-8602, Japan
| | - Masao Ishimoto
- National Institute of Agrobiological Sciences, 2-1-2 Kannondai, Tsukuba, Ibaraki 305-8602, Japan
| | - Masakazu Takahashi
- National Agriculture and Food Research Organization, Kyushu Okinawa Agricultural Research Center, 2421 Suya, Koushi, Kumamoto 861-1192, Japan
| | - Motoki Takahashi
- National Agriculture and Food Research Organization, Kyushu Okinawa Agricultural Research Center, 2421 Suya, Koushi, Kumamoto 861-1192, Japan
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Takada Y, Tayama I, Sayama T, Sasama H, Saruta M, Kikuchi A, Ishimoto M, Tsukamoto C. Genetic analysis of variations in the sugar chain composition at the C-3 position of soybean seed saponins. Breed Sci 2012; 61:639-45. [PMID: 23136503 PMCID: PMC3406783 DOI: 10.1270/jsbbs.61.639] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/29/2011] [Accepted: 11/14/2011] [Indexed: 05/09/2023]
Abstract
Saponins are sterols or triterpene glycosides that are widely distributed in plants. The biosynthesis of soybean saponins is thought to involve many kinds of glycosyltransferases, which is reflected in their structural diversity. Here, we performed linkage analyses of the Sg-3 and Sg-4 loci, which may control the sugar chain composition at the C-3 sugar moieties of the soybean saponin aglycones soyasapogenols A and B. The Sg-3 locus, which controls the production of group A saponin Af, was mapped to chromosome (Chr-) 10. The Sg-4 locus, which controls the production of DDMP saponin βa, was mapped to Chr-1. To elucidate the preference of sugar chain formation at the C-3 and C-22 positions, we analyzed the F(2) population derived from a cross between a mutant variety, Kinusayaka (sg-1(0)), for the sugar chain structure at C-22 position, and Mikuriya-ao (sg-3), with respect to the segregation of the composition of the group A saponins, and found that the formation of these sugar chains was independently regulated. Furthermore, a novel saponin, predicted to be A0-γg, 3-O-[β-d-galactopyranosyl (1→2)-β-d-glucuronopyranosyl]-22-O-α-l-arabinopyranosyl-soyasapogenol A, appeared in the hypocotyl of F(2) individuals with genotype sg-1(0)/sg-1(0)sg-3/sg-3.
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Affiliation(s)
- Yoshitake Takada
- NARO Western Region Agricultural Research Center, 1-3-1 Senyuu, Zentsuuji, Kagawa 765-8508, Japan
- Corresponding author (e-mail: )
| | - Ippei Tayama
- Graduate School of Agriculture, Iwate University, 3-18-8 Ueda, Morioka, Iwate 020-8550, Japan
| | - Takashi Sayama
- National Institute of Agrobiological Sciences, 2-1-2 Kannondai, Tsukuba, Ibaraki 305-8602, Japan
| | - Hiroko Sasama
- Graduate School of Agriculture, Iwate University, 3-18-8 Ueda, Morioka, Iwate 020-8550, Japan
- National Institute of Agrobiological Sciences, 2-1-2 Kannondai, Tsukuba, Ibaraki 305-8602, Japan
| | - Masayasu Saruta
- NARO Western Region Agricultural Research Center, 1-3-1 Senyuu, Zentsuuji, Kagawa 765-8508, Japan
| | - Akio Kikuchi
- ARO Tohoku Agricultural Research Center, 297 Uenodai, Kariwano, Daisen, Akita 019-2112, Japan
| | - Masao Ishimoto
- National Institute of Agrobiological Sciences, 2-1-2 Kannondai, Tsukuba, Ibaraki 305-8602, Japan
| | - Chigen Tsukamoto
- Graduate School of Agriculture, Iwate University, 3-18-8 Ueda, Morioka, Iwate 020-8550, Japan
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Sayama T, Hwang TY, Komatsu K, Takada Y, Takahashi M, Kato S, Sasama H, Higashi A, Nakamoto Y, Funatsuki H, Ishimoto M. Development and application of a whole-genome simple sequence repeat panel for high-throughput genotyping in soybean. DNA Res 2011; 18:107-15. [PMID: 21454301 PMCID: PMC3077039 DOI: 10.1093/dnares/dsr003] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2010] [Accepted: 02/16/2011] [Indexed: 01/12/2023] Open
Abstract
Among commonly applied molecular markers, simple sequence repeats (SSRs, or microsatellites) possess advantages such as a high level of polymorphism and codominant pattern of inheritance at individual loci. To facilitate systematic and rapid genetic mapping in soybean, we designed a genotyping panel comprised 304 SSR markers selected for allelic diversity and chromosomal location so as to provide wide coverage. Most primer pairs for the markers in the panel were redesigned to yield amplicons of 80-600 bp in multiplex polymerase chain reaction (PCR) and fluorescence-based sequencer analysis, and they were labelled with one of four different fluorescent dyes. Multiplex PCR with sets of six to eight primer pairs per reaction generated allelic data for 283 of the 304 SSR loci in three different mapping populations, with the loci mapping to the same positions as previously determined. Four SSRs on each chromosome were analysed for allelic diversity in 87 diverse soybean germplasms with four-plex PCR. These 80 loci showed an average allele number and polymorphic information content value of 14.8 and 0.78, respectively. The high level of polymorphism, ease of analysis, and high accuracy of the SSR genotyping panel should render it widely applicable to soybean genetics and breeding.
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Affiliation(s)
- Takashi Sayama
- National Institute of Agrobiological Sciences, 2-1-2 Kannondai, Tsukuba, Ibaraki 305-8602, Japan
- National Agricultural Research Center for Hokkaido Region, 1 Hitsujigaoka, Toyohira, Sapporo, Hokkaido 062-8555, Japan
| | - Tae-Young Hwang
- National Agricultural Research Center for Hokkaido Region, 1 Hitsujigaoka, Toyohira, Sapporo, Hokkaido 062-8555, Japan
| | - Kunihiko Komatsu
- National Agricultural Research Center for Hokkaido Region, 1 Hitsujigaoka, Toyohira, Sapporo, Hokkaido 062-8555, Japan
| | - Yoshitake Takada
- National Agricultural Research Center for Western Region, 1-3-1 Senyuu, Zentsuuji, Kagawa 765-8508, Japan
| | - Masakazu Takahashi
- National Agricultural Research Center for Kyushu Okinawa Region, 2421 Suya, Koshi, Kumamoto 861-1192, Japan
| | - Shin Kato
- National Agricultural Research Center for Tohoku Region, 297 Uenodai, Kariwano, Daisen, Akita 019-2112, Japan
| | - Hiroko Sasama
- National Institute of Agrobiological Sciences, 2-1-2 Kannondai, Tsukuba, Ibaraki 305-8602, Japan
- National Agricultural Research Center for Hokkaido Region, 1 Hitsujigaoka, Toyohira, Sapporo, Hokkaido 062-8555, Japan
| | - Ayako Higashi
- National Agricultural Research Center for Hokkaido Region, 1 Hitsujigaoka, Toyohira, Sapporo, Hokkaido 062-8555, Japan
| | - Yumi Nakamoto
- National Agricultural Research Center for Hokkaido Region, 1 Hitsujigaoka, Toyohira, Sapporo, Hokkaido 062-8555, Japan
| | - Hideyuki Funatsuki
- National Agricultural Research Center for Hokkaido Region, 1 Hitsujigaoka, Toyohira, Sapporo, Hokkaido 062-8555, Japan
| | - Masao Ishimoto
- National Institute of Agrobiological Sciences, 2-1-2 Kannondai, Tsukuba, Ibaraki 305-8602, Japan
- National Agricultural Research Center for Hokkaido Region, 1 Hitsujigaoka, Toyohira, Sapporo, Hokkaido 062-8555, Japan
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Hwang TY, Sayama T, Takahashi M, Takada Y, Nakamoto Y, Funatsuki H, Hisano H, Sasamoto S, Sato S, Tabata S, Kono I, Hoshi M, Hanawa M, Yano C, Xia Z, Harada K, Kitamura K, Ishimoto M. High-density integrated linkage map based on SSR markers in soybean. DNA Res 2009; 16:213-25. [PMID: 19531560 PMCID: PMC2725787 DOI: 10.1093/dnares/dsp010] [Citation(s) in RCA: 75] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2009] [Accepted: 05/25/2009] [Indexed: 11/17/2022] Open
Abstract
A well-saturated molecular linkage map is a prerequisite for modern plant breeding. Several genetic maps have been developed for soybean with various types of molecular markers. Simple sequence repeats (SSRs) are single-locus markers with high allelic variation and are widely applicable to different genotypes. We have now mapped 1810 SSR or sequence-tagged site markers in one or more of three recombinant inbred populations of soybean (the US cultivar 'Jack' x the Japanese cultivar 'Fukuyutaka', the Chinese cultivar 'Peking' x the Japanese cultivar 'Akita', and the Japanese cultivar 'Misuzudaizu' x the Chinese breeding line 'Moshidou Gong 503') and have aligned these markers with the 20 consensus linkage groups (LGs). The total length of the integrated linkage map was 2442.9 cM, and the average number of molecular markers was 90.5 (range of 70-114) for the 20 LGs. We examined allelic diversity for 1238 of the SSR markers among 23 soybean cultivars or lines and a wild accession. The number of alleles per locus ranged from 2 to 7, with an average of 2.8. Our high-density linkage map should facilitate ongoing and future genomic research such as analysis of quantitative trait loci and positional cloning in addition to marker-assisted selection in soybean breeding.
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Affiliation(s)
- Tae-Young Hwang
- National Agricultural Research Center for Hokkaido Region, 1 Hitsujigaoka, Toyohira, Sapporo, Hokkaido 062-8555, Japan
- Graduate School of Agriculture, Hokkaido University, Kita 9 Nishi 9, Kita, Sapporo, Hokkaido 060-8589, Japan
| | - Takashi Sayama
- National Agricultural Research Center for Hokkaido Region, 1 Hitsujigaoka, Toyohira, Sapporo, Hokkaido 062-8555, Japan
| | - Masakazu Takahashi
- National Agricultural Research Center for Kyushu Okinawa Region, 2421 Suya, Koshi, Kumamoto 861-1192, Japan
| | - Yoshitake Takada
- National Agricultural Research Center for Tohoku Region, 297 Uenodai, Kariwano, Daisen, Akita 019-2112, Japan
| | - Yumi Nakamoto
- National Agricultural Research Center for Hokkaido Region, 1 Hitsujigaoka, Toyohira, Sapporo, Hokkaido 062-8555, Japan
| | - Hideyuki Funatsuki
- National Agricultural Research Center for Hokkaido Region, 1 Hitsujigaoka, Toyohira, Sapporo, Hokkaido 062-8555, Japan
| | - Hiroshi Hisano
- Kazusa DNA Research Institute, 2-6-7 Kazusa-kamatari, Kisarazu, Chiba 292-0818, Japan
| | - Shigemi Sasamoto
- Kazusa DNA Research Institute, 2-6-7 Kazusa-kamatari, Kisarazu, Chiba 292-0818, Japan
| | - Shusei Sato
- Kazusa DNA Research Institute, 2-6-7 Kazusa-kamatari, Kisarazu, Chiba 292-0818, Japan
| | - Satoshi Tabata
- Kazusa DNA Research Institute, 2-6-7 Kazusa-kamatari, Kisarazu, Chiba 292-0818, Japan
| | - Izumi Kono
- Institute of Society for Techno-Innovation of Agriculture, Forestry, and Fisheries, 446-1 Kamiyokoba, Tsukuba, Ibaraki 305-0854, Japan
| | - Masako Hoshi
- Faculty of Horticulture, Chiba University, 648 Matsudo, Chiba 271-8510, Japan
| | - Masayoshi Hanawa
- Faculty of Horticulture, Chiba University, 648 Matsudo, Chiba 271-8510, Japan
| | - Chizuru Yano
- Faculty of Horticulture, Chiba University, 648 Matsudo, Chiba 271-8510, Japan
| | - Zhengjun Xia
- National Institute of Agrobiological Sciences, 2-1-2 Kannondai, Tsukuba, Ibaraki 305-8602, Japan
| | - Kyuya Harada
- National Institute of Agrobiological Sciences, 2-1-2 Kannondai, Tsukuba, Ibaraki 305-8602, Japan
| | - Keisuke Kitamura
- Graduate School of Agriculture, Hokkaido University, Kita 9 Nishi 9, Kita, Sapporo, Hokkaido 060-8589, Japan
| | - Masao Ishimoto
- National Agricultural Research Center for Hokkaido Region, 1 Hitsujigaoka, Toyohira, Sapporo, Hokkaido 062-8555, Japan
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Sayama T, Nakazaki T, Ishikawa G, Yagasaki K, Yamada N, Hirota N, Hirata K, Yoshikawa T, Saito H, Teraishi M, Okumoto Y, Tsukiyama T, Tanisaka T. QTL analysis of seed-flooding tolerance in soybean (Glycine max [L.] Merr.). Plant Sci 2009; 176:514-21. [PMID: 26493141 DOI: 10.1016/j.plantsci.2009.01.007] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/08/2008] [Revised: 12/29/2008] [Accepted: 01/12/2009] [Indexed: 05/27/2023]
Abstract
In soybean (Glycine max [L.] Merr.), varieties with seed-flooding tolerance at the geminating stage are desirable for breeding in countries with much rainfall at sowing time. Our study revealed great intervarietal variation in seed-flooding tolerance as evaluated by germination rate (GR) and normal seedling rate (NS). Pigmented seed coat and small seed weight tended to give a positive effect on seed-flooding tolerance. Subsequently, QTL analysis of GR and NS were performed and a total of four QTLs were detected. Among them, Sft1 on the linkage group H (LG_H) exhibited a large effect on GR after a 24-h treatment; however, Sft2 near the I locus on LG_A2 involved in seed coat pigmentation exhibited the largest effect on seed-flooding tolerance. Sft1, Sft3 and Sft4 were independent of seed coat color and seed weight. Based on the results, we discussed the physiological effects of genetic factors responsible for seed-flooding tolerance in soybean.
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Affiliation(s)
- Takashi Sayama
- Graduate School of Agriculture, Kyoto University, Kitashirakawa-oiwake-cho, Sakyo-ku, Kyoto 606-8502, Japan
| | - Tetsuya Nakazaki
- Graduate School of Agriculture, Kyoto University, Kitashirakawa-oiwake-cho, Sakyo-ku, Kyoto 606-8502, Japan
| | - Goro Ishikawa
- Graduate School of Agriculture, Kyoto University, Kitashirakawa-oiwake-cho, Sakyo-ku, Kyoto 606-8502, Japan
| | - Kazuhiro Yagasaki
- Nagano Chushin Agricultural Experiment Station, Shiojiri, Nagano 399-6461, Japan
| | - Naohiro Yamada
- Nagano Chushin Agricultural Experiment Station, Shiojiri, Nagano 399-6461, Japan
| | - Naoko Hirota
- Graduate School of Agriculture, Kyoto University, Kitashirakawa-oiwake-cho, Sakyo-ku, Kyoto 606-8502, Japan
| | - Kaori Hirata
- Graduate School of Agriculture, Kyoto University, Kitashirakawa-oiwake-cho, Sakyo-ku, Kyoto 606-8502, Japan
| | - Takanori Yoshikawa
- Graduate School of Agriculture, Kyoto University, Kitashirakawa-oiwake-cho, Sakyo-ku, Kyoto 606-8502, Japan
| | - Hiroki Saito
- Graduate School of Agriculture, Kyoto University, Kitashirakawa-oiwake-cho, Sakyo-ku, Kyoto 606-8502, Japan
| | - Masayoshi Teraishi
- Graduate School of Agriculture, Kyoto University, Kitashirakawa-oiwake-cho, Sakyo-ku, Kyoto 606-8502, Japan
| | - Yutaka Okumoto
- Graduate School of Agriculture, Kyoto University, Kitashirakawa-oiwake-cho, Sakyo-ku, Kyoto 606-8502, Japan
| | - Takuji Tsukiyama
- Graduate School of Agriculture, Kyoto University, Kitashirakawa-oiwake-cho, Sakyo-ku, Kyoto 606-8502, Japan
| | - Takatoshi Tanisaka
- Graduate School of Agriculture, Kyoto University, Kitashirakawa-oiwake-cho, Sakyo-ku, Kyoto 606-8502, Japan.
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Hayashi K, Seyama H, Yamada N, Murao K, Iihara K, Takahashi JC, Nakajima N, Sayama T, Morimoto M, Mori H, Yamamoto M, Hishikawa T, Nonaka Y, Ayabe J, Kikuchi T, Hyuga M, Ookawa M, Kudo T, Miyamoto S. The Stenting to Internal Carotid Artery Stenosis (ICS) in Petrous Portion. The Evaluation of Plaque Figures in Magnetic Resonance Image. Interv Neuroradiol 2006; 12:193-6. [PMID: 20569630 DOI: 10.1177/15910199060120s134] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2005] [Accepted: 12/15/2005] [Indexed: 11/16/2022] Open
Abstract
SUMMARY In the safety stenting, it is important to get to know the characteristics of a plaque. In petrous carotid artery stenosis, it is difficult to know the characteristics of the plaque.We paid our attention to the MPRAGE (Magnetization Prepared Rapid Acquisition with Gradient Echo) method on high resolving power MRI. By the MPRAGE method, low intensity was observed in these lesions of all cases. This result suggested that the plaque in petrous portion was a fibrous plaque. This method is useful to get to know the characteristics of a plaque in petrous portion before endovascular treatment.
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Affiliation(s)
- K Hayashi
- Department of Neurosurgery, National Cardiovascular Center, Osaka, Japan
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Suzuki S, Ito O, Sayama T, Yamaguchi S, Goto K, Sasaki T. Intraarterial injection of colforsin daropate hydrochloride for the treatment of vasospasm after aneurysmal subarachnoid hemorrhage: preliminary report of two cases. Neuroradiology 2005; 48:50-3. [PMID: 16261335 DOI: 10.1007/s00234-005-0014-7] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2005] [Accepted: 05/24/2005] [Indexed: 10/25/2022]
Abstract
We describe two patients with symptomatic vasospasms after aneurysmal subarachnoid hemorrhage who were successfully treated with intraarterial injection of colforsin daropate hydrochloride (HCl). Colforsin daropate HCl is capable of directly stimulating adenylate cyclase, which in turn causes vasorelaxation via elevated intracellular concentrations of cyclic adenosine monophosphate. We suggest that colforsin daropate HCl might be a useful therapeutic tool in treating cerebral vasospasm.
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Affiliation(s)
- S Suzuki
- Department of Neurological Surgery, Shin-Koga Hospital, Kurume, 830-8577, Japan.
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Yassari R, Sayama T, Jahromi BS, Aihara Y, Stoodley M, Macdonald RL. Angiographic, hemodynamic and histological characterization of an arteriovenous fistula in rats. Acta Neurochir (Wien) 2004; 146:495-504. [PMID: 15118887 DOI: 10.1007/s00701-004-0248-x] [Citation(s) in RCA: 37] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
BACKGROUND Our understanding of the pathogenesis of arteriovenous malformations (AVMs) and arteriovenous fistulas (AVFs) has been limited by the lack of adequate animal models. In this study we evaluate the time course of angiographic, hemodynamic and histopathological changes in an arteriovenous fistula in rats as a potential model. METHODS An arteriovenous fistula was created by a side-to-end anastomosis of the common carotid artery (CCA) to the external jugular vein (EJV). The animals underwent angiography of the fistula and were sacrificed 1, 7, 21, 42 or 90 days later. Flow and pressure measurements were performed in the CCA and ipsi- and contralateral EJV and detailed histological examination of whole mount sections of the fistula and cranium were done on fixed sections. Immunohistochemistry for CD31, smooth muscle alpha-actin and Ki-67 were performed. FINDINGS Hemodynamic changes occur immediately after fistula formation creating a stable high flow, low resistant state. This induces a gradual increase in the inner diameter of the EJV and transverse sinus followed by a decrease in size of the transverse sinus. This decrease is associated with increased expression of alpha-actin in the wall of the sinus. The fistula becomes angiographically and histologically stable after 21 days. CONCLUSION This model describes the time course of hemodynamic and histopathological changes after occur after AVF formation. Stabilization after 21 days makes it an attractive model for mechanistic and therapeutic studies of AVFs.
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Affiliation(s)
- R Yassari
- Section of Neurosurgery, Department of Surgery and Pritzker School of Medicine, University of Chicago Medical Center, Chicago, Illinois 60637, USA
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Huynh-Le P, Matsushima T, Miyazono M, Sayama T, Muratani H, Tashima T, Sasaki T. Three-dimensional CT angiography for the surgical management of the vertebral artery-posterior inferior cerebellar artery aneurysms. Acta Neurochir (Wien) 2004; 146:329-35; discussion 335. [PMID: 15057526 DOI: 10.1007/s00701-003-0157-4] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
BACKGROUND Surgery of vertebral artery-posterior inferior cerebellar artery (VA-PICA) aneurysms is not easy because there is a close anatomical relationship between aneurysms and the surrounding neurovascular structures, and bony structures in the lateral foramen magnum. The preoperative evaluation for a circumstantial comprehension of anatomical relationships is very important for the surgical treatment of the VA-PICA aneurysms. Our experience in using three-dimensional CT angiography (3D-CTA) for the surgical management of VA-PICA aneurysms is herein reported. METHODS AND FINDINGS We successfully performed neck clipping in 5 cases of VA-PICA aneurysm using 3D-CTA. On 3D reconstructed images, we could see the characteristics of the aneurysms such as their relationships to the jugular tubercle and hypoglossal canal, the projecting direction of the dome, and the configuration of the neck in each case. 3D-CTA also provided a clear surgical view as well as the relationships of the aneurysms to the VA and origin of the PICA. Based on such information, we selected the most appropriate surgical approach among the transcondylar fossa approach, the transcondylar approach, or the far lateral approach with a C1 laminectomy. CONCLUSIONS Since 3D-CTA demonstrates the surgical anatomy of VA-PICA aneurysms in detail, it is very useful for helping surgeons to select the optimal approach.
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Affiliation(s)
- P Huynh-Le
- Department of Neurosurgery, Neurological Institute, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
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Sayama T, Inamura T, Morioka T, Inoha S, Nakamizo A, Ikezaki K, Matsushima T, Sasaki M, Fukui M. Positron-emission tomography in stroke associated with antiphospholipid syndrome. Radiography (Lond) 2001. [DOI: 10.1053/radi.2001.0329] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Murata A, Tambo M, Yoshimatsu T, Ota M, Kinjo M, Noda H, Watanabe K, Kato M, Miyata A, Miura I, Okegawa T, Yoneda T, Yoshii M, Sayama T, Nutahara K, Higashihara E. [Comparisons of factors affecting voiding disorders between patients with benign prostate hyperplasia and volunteers]. Nihon Hinyokika Gakkai Zasshi 2001; 92:451-6. [PMID: 11398319 DOI: 10.5980/jpnjurol1989.92.451] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/16/2023]
Abstract
PURPOSE The prostate size and motivation to visit clinics were investigated in patients with prostate hyperplasia. OBJECTS AND METHODS One hundred ninety-five patients who had urinary symptoms and visited our outpatient clinic between September 1994 and October 1999 and 268 age-matched volunteers in Mitaka City who underwent a medical examination of the prostate in June 1997 were compared. International Prostate Symptom Score (IPSS), Quality Of Life Score (QOL score), residual urine volume, prostate volume and urinary flow rate were measured. RESULTS The prostate volume of the volunteers was 20-25 cm3 irrespective of the age. The prostate size of the outpatients was larger than that of the volunteers for every age group. IPSS and QOL score were significantly higher in the outpatients than in the volunteers. Diurnal urinary frequency and sense of residual urine contributed to the discrimination index of the two groups more significantly than the other scores. There was a significant correlation between prostate volume and residual urine volume. The score of weak urinary steam was inversely and significantly correlated with peak urinary flow rate. CONCLUSIONS There was no age-related enlargement of the prostate gland. The prostate gland was significantly larger in the patients than in the volunteers even in those in their fifties. Urinary frequency and sense of residual urine are important factors for men to seek and receive medical care.
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Affiliation(s)
- A Murata
- Department of Urology, Kyorin University, School of Medicine
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Saito J, Nakai Y, Saijo Y, Nukiwa T, Koinumaru S, Matsuura Y, Aso N, Yamane Y, Tsukamoto T, Sayama T, Nakabayashi T. A phase II trial of oral UFT plus cisplatin (CDDP) in patients with non-small cell lung cancer (NSCLC). Lung Cancer 2001; 31:285-93. [PMID: 11165409 DOI: 10.1016/s0169-5002(00)00183-5] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Based on the results of our previous pilot study, we conducted a multi-institutional phase II study of combination chemotherapy consisting of oral UFT (Taiho Pharmaceutical Co. Ltd, Tokyo) plus cisplatin (CDDP) in patients with advanced non-small cell lung cancer (NSCLC). UFT capsule containing 100 mg tegafur and 224 mg uracil was orally administered in two divided doses on days 1 through 21 making the total tegafur dose 400 mg/m(2)/day (maximum 600 mg/body). CDDP was administered by drip infusion at a dose of 20 mg/m(2) on a 5-day schedule from day 8 to 12. Treatment was repeated every 4 weeks as long as the criteria for initiation of therapy were still met. Between April 1995 and March 1997, 51 patients were entered into the study. The mean age of all 50 eligible patients was 64 years(range: 40-78). There were 21 patients with clinical stage IIIB disease and 29 patients with IV disease. Thirty-two patients had adenocarcinoma, 14 had epidermoid carcinoma, and four had large cell carcinoma. Of the 47 assessable patients, 18 achieved a partial response with an overall response rate of 38.3% (95% confidence interval: 24.4-52.2%). The median response duration was 113 days. The median survival time of the eligible patients was 12.8 months, and the 1-year survival rate was 54%. Among the 51 patients enrolled, grade 3 or 4 leukopenia developed in one patient (2%), neutropenia in six patients (11. 8%), thrombocytopenia in six patients (11. 8%), and anemia in three patients (5. 9%). Non-hematological grade 3 or 4 toxicities included anorexia in 10 patients (19.6%), nausea in ten (19.6%), vomiting in two (3.9%), and diarrhea in two (3. 9%). Grade 3 abnormal laboratory data included bilirubinemia in four (7. 8%), GPT elevation in one (2.0%), and hematuria in one (2.0%). In conclusion, combination of CDDP plus oral UFT is efficacious, with low toxicity, in the treatment of advanced NSCLC. In particular, the low hematological toxicity may warrant application of this regimen to the treatment of elderly patients and in trials of concurrent chemoradiotherapy in patients with locally advanced NSCLC.
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Affiliation(s)
- J Saito
- Department of Internal Medicine, Sendai Kohsei Hospital, Hirosemachi 4-15, Aoba-ku, Sendai 980-0873, Japan
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Kato M, Tammbo M, Yoshimatsu T, Ohta M, Kinjyo M, Noda H, Watanabe K, Miyata A, Murata A, Miura I, Yoneda T, Yoshii M, Okegawa T, Kojima M, Sayama T, Nutahara K, Higashihara E. [The significance of early detection for prostate cancer in mass screening]. Nihon Hinyokika Gakkai Zasshi 2001; 92:23-9. [PMID: 11235139 DOI: 10.5980/jpnjurol1989.92.23] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/16/2023]
Abstract
PURPOSE In Mitaka city, mass screening for prostate cancer was conducted for 3 years from 1995 to 1997. Clinical stages were compared between patients found by screening and those diagnosed at our clinic during the same time. The significance of serum-free prostate specific antigen (PSA) in mass screening for prostate cancer was examined. MATERIAL AND METHODS A prospective clinical trial was conducted on men aged 50 years or older. The primary examination consisted of taking the international prostate symptom score, quality of life score, PSA (Tandem-R) and digital rectal examination (DRE). If PSA was greater than 4.0 ng./ml and/or if DRE suggested cancer, transrectal ultrasound-guided sextant prostate biopsies were indicated. RESULTS Of the men screened, 23.2% (320/1375) had serum PSA greater than 4.0 ng./ml. and/or suspicious findings on DRE. Biopsy was performed in 199 of 320 (62.1%). Cancer was detected in 21 (1.5%, 21/1375). Prostate cancer was found in one case among 154 males (0.65%, 1/154) who were screened twice or more. The cancer stage found by screening was significantly earlier than that diagnosed at the outpatient clinic (Wilcoxon's rank-sum test: p = 0.0047). Receiver operating characteristics analysis showed that the optimal free PSA-to-PSA ratio was 12%. Positive predictive value increased from 18% to 50% when free PSA-to-PSA ratio was combined with PSA. CONCLUSION 1. Cancer detection rate was 1.5% in the mass screening in Mitaka City. 2. Cancer stage found by screening was significantly earlier than that diagnosed at the outpatient clinic. 3. Free PSA determination might eliminate unnecessary biopsies in men with PSA above 4.0 ng./ml with minimal loss of cancer detection.
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Affiliation(s)
- M Kato
- Department of Urology, Kyorin University School of Medicine
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Fukui K, Inamura T, Nakamizo A, Inoha S, Kawamura T, Sayama T, Matsushima T, Fukui M. [Relationship between cardiac natriuretic peptide (ANP/BNP) and fluid intake in patients with subarachnoid hemorrhage]. No To Shinkei 2000; 52:1019-23. [PMID: 11215265] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/19/2023]
Abstract
Several authors described elevated natriuretic peptides, atrial natriuretic peptide(ANP) and brain natriuretic peptide (BNP), in patients with subarachnoid hemorrhage(SAH), which were account for inappropriate antidiuretic hormone(SIADH) or cerebral salt wasting syndrome(CSW). Although the secretion of natriuretic peptide depends on the total blood volume, central venous pressure, and cardiac output volume, the volume of fluid intake in patients with SAH had not been taken in consideration in previous report. We here examined the relationship between fluid intake and the natriuretic peptides in two cases without cardiac failure. ANP elevated 2 or 3 days after SAH and remained in normal range for 2 weeks. BNP elevated when the volume of fluid intake was increased, and BNP did not elevate during the periods with lower fluid intake. Several authors proposed the possibility of iatrogenic factor in natriuresis after SAH and these results supported this opinion.
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Affiliation(s)
- K Fukui
- Department of Neurosurgery, Graduate School of Medical Science, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan
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Sayama T, Inamura T, Matsushima T, Inoha S, Inoue T, Fukui M. High incidence of hyponatremia in patients with ruptured anterior communicating artery aneurysms. Neurol Res 2000; 22:151-5. [PMID: 10763501 DOI: 10.1080/01616412.2000.11741052] [Citation(s) in RCA: 45] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
We studied the incidence and timing of hyponatremia (Na < 135 mEq l-1) after subarachnoid hemorrhage (SAH) with special reference to ruptured anterior communicating artery (A-com) aneurysms. Hunt and Kosnik (HK) grading, symptomatic vasospasm in A-com aneurysm, and hydrocephalus were analyzed for connections to hyponatremia in 55 patients with ruptured A-com aneurysms, 65 with ruptured internal cerebral artery (ICA) aneurysms, and 49 with ruptured middle cerebral artery (MCA) aneurysms. Hyponatremia occurred in 28 (51%) of 55 patients with A-com aneurysms and in nine (18%) of 49 patients with MCA aneurysms. Severe hyponatremia (Na < 130 mEq l-1) occurred in 16 patients (29%) in the A-com group, four patients (6%) in the ICA group, and three patients (6%) in the MCA group. The A-com aneurysm group had a significantly higher incidence of mild hyponatremia (p < 0.01) and severe hyponatremia (p < 0.001) than other groups. Among A-com cases, hyponatremia occurred significantly more often in HK grade III and IV cases (p < 0.05), in cases with vasospasm (p < 0.001), and in cases with hydrocephalus (p < 0.01). Respective days of onset for symptomatic vasospasm and for hyponatremia were day 7.6 +/- 4.4 and day 10.6 +/- 5.8 following SAH, representing a 3-day delay for hyponatremia (p < 0.05). In most patients hyponatremia resolved within 28 days following SAH. Hyponatremia occurred more often with A-com aneurysms, possibly because of vasospasm around the A-com or hydrocephalus causing hypothalamic dysfunction. Since hypervolemic therapy can cause hyponatremia, particularly careful observation is required during such therapy in patients with A-com aneurysm.
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Affiliation(s)
- T Sayama
- Department of Neurosurgery, Faculty of Medicine, Kyushu University, Fukuoka, Japan
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Abstract
We report a case of cerebral air embolism resulting from accidental air infection during cerebral angiography. A 60-year-old man was accidentally injected with air via the left subclavian artery. Angiography demonstrated air within the basilar artery. The patient showed signs of posterior circulation ischaemia (confusion, blindness, gaze palsy and hemiparesis). However, MRI, including diffusion-weighted imaging, showed no abnormality 4 h later. The patient was treated with hyperbaric oxygen within 5 h of the embolism. All symptoms and signs resolved completely within a week.
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Affiliation(s)
- T Sayama
- Department of Neurosurgery, Kyushu University Hospital, Fukuoka, Japan
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Muraishi M, Sayama T, Matsukado K, Inamura T, Ikezaki K, Morioka T, Fukui M. Effect of intracarotid bradykinin infusion on cerebral blood flow in dogs. Neurol Res 1999; 21:791-5. [PMID: 10596391 DOI: 10.1080/01616412.1999.11741016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
We examined whether intracarotid infusion of bradykinin altered circulation in the normal canine brain. Twenty-four anesthetized dogs were divided into four groups receiving different doses of bradykinin (1, 2.5, 5, and 10 micrograms kg-1 min-1). Regional cerebral blood flow (rCBF) was measured continuously using laser Doppler flowmetry through a burr hole in the frontal bone. Systemic blood pressure (SBP) and heart rate (HR) were monitored simultaneously. Higher doses of bradykinin significantly but temporarily decreased rCBF and SBP immediately after the start of infusion; these parameters rapidly recovered and then were stable through the rest of the infusion. During this period, percent change in rCBF and SBP was small, and differences between groups were not significant. On the other hand, HR increased during infusion and remained high. SBP, rCBF, and HR returned to pre-infusion levels after bradykinin was stopped. The results suggest that intracarotid infusion of bradykinin for treatment of brain tumors would be safe in terms of circulation to the uninvolved brain.
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Affiliation(s)
- M Muraishi
- Department of Neurosurgery, Faculty of Medicine, Kyushu University, Fukuoka, Japan
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