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Is one-line hybrid rice coming?

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Journal of Integrative Plant Biology 2019年第8期61卷 908-910页

作者： Xingming Hu Fanmiao Wang makoto matsuoka Bioscience and Biotechnology Center Nagoya UniversityNagoya 464-8601Japan State Key Laboratory of Rice Biology China National Rice Research InstituteHangzhou 310006China

Asian cultivated rice is one of the most important cereal crops and feeds half of the world’s population,especially in eastern and southeastern Asian countries(Virmani 2012).It is estimated that about 20%or more increase in rice production would be likely needed in the next 20 years due to the growing population and environmental changes(Virmani 2012).

关键词： cereal crops rice southeastern

Future Strategy of Breeding:Learn by Two Important Genes of Miracle Rice

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Molecular Plant 2020年第6期13卷 823-824页

作者： Kyosuke Kawai Miyako Ueguchi-Tanaka makoto matsuoka Bioscience and Biotechnology Center Nagoya University464-8601 NagoyaJapan

In the"Analects of Confucius",there is a classic sentence that"too much is as bad as too little".The work by Wang et al.(2020)published in this issue reminds us that crop breeders should bear this sentence in mind whe... 详细信息

关键词： breed Learn she

Starch metabolism and grain chalkiness under high temperature stress

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National Science Review 2016年第3期3卷 280-282页

作者： Pei-Ching Lo Li Hu Hidemi Kitano makoto matsuoka Graduate School of Bioagricultural Sciences Nagoya University Bioscience and Biotechnology Center Nagoya University

Rice is one of the most important staple crops,demand for which is increasing with population growth all over the world,especially in Asia.Because of recent global warming,significant reduction in yield and quality of rice has now become a serious problem.One of the most common damages incurred by high temperature(HT) stress is grain chalkiness.Chalky grains show loosely packed

关键词： QTLs GBSSI Starch metabolism and grain chalkiness under high temperature stress high

Integrated genome-wide differentiation and association analyses identify causal genes underlying breeding-selected grain quality traits in japonica rice

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Molecular Plant 2023年第9期16卷 1460-1477页

作者： Hideki Yoshida Satoshi Okada Fanmiao Wang Shohei Shiota Masaki Mori Mayuko Kawamura Xue Zhao Yiqiao Wang Naho Nishigaki Asako Kobayashi Kotaro Miura Shinya Yoshida Masaru Ikegami Akitoshi Ito Lin-Tzu Huang Yue-le Caroline Hsing Yoshiyuki Yamagata Yoichi Morinaka Masanori Yamasaki Toshihisa Kotake Eiji Yamamoto Jian Sun Ko Hirano makoto matsuoka Institute of Fermentation Sciences Fukushima UniversityFukushima 960-1248Japan Bioscience and Biotechnology Center Nagoya UniversityNagoyaAichi 464-8601Japan Food Resources Education and Research Center Graduate School of Agricultural ScienceKobe UniversityUzuranoKasaiHyogo 675-2103Japan Research Center of Genetic Resources NARO2-1-1 KannondaiTsukubaIbaraki 305-8602Japan Rice Research Institute Shenyang Agricultural UniversityShenyangChina Division of Life Science Graduate School of Science and EngineeringSaitama University255 Shimo-okuboSakura-kuSaitamaJapan Fukui Agricultural Experiment Station Fukui 918-8215Japan Department of Bioscience and Biotechnology Fukui Prefectural UniversityFukui 910-1195Japan Hyogo Prefectural Research Center for Agriculture Forestry and FisheriesKasaiHyogo 679-0198Japan Research Insttute for Food and Agriculture Ryukoku UniversityOotsuShiga 520-2194Japan Food Research Centre Aichi Centre for Industry and Science Technology2-1-1 Shimpukuji-choNagoyaAichi 451-0083Japan institute of Plant and Microbial Biology Academia SinicaTaipeiTaiwanChina Department of Agronomy National Taiwan UniversityTaipeiTaiwanChina lant Breeding Laboratory Facultyf gricultureKyushu University744MoookaNishikuFukukaJapan Graduate School of Agiculture Meji University1-1-1 Higashi-MitaTama-kuKawasakiKanagawa 214571Japa Crop Science Laboratory Faculty of AgricultureNigata UniversityIkarashiNishi-kuNigata 950-2181Japan

Improving grain quality is a primary objective in contemporary rice breeding.Japanese modern rice breeding has developed two different types of rice,eating and sake-brewing rice,with different grain characteristics,indicating the selection of variant gene alleles during the breeding process.Given the critical importance of promptly and efficiently identifying genes selected in past breeding for future molecular breeding,we conducted genome scans for divergence,genome-wide association studies,and map-based cloning.Consequently,we successfully identified two genes,OsMnS and OsWOX9D,both contributing to rice grain traits.OsMnS encodes a mannan synthase that increases the white core frequency in the endosperm,a desirable trait for sake brewing but decreases the grain appearance quality.OsWOX9D encodes a grass-specific homeobox-containing transcription factor,which enhances grain width for better sake brewing.Furthermore,haplotype analysis revealed that their defective alleles were selected in East Asia,but not Europe,during modern improvement.In addition,our analyses indicate that a reduction in grain mannan content during African rice domestication may also be caused a defective OsMnS allele due to breeding selection.This study not only reveals the delicate balance between grain appearance quality and nutrition in rice but also provides a new strategy for isolating causal genes underlying complex traits,based on the concept of“breeding-assisted genomics”in plants.

关键词： rice grain quality sake brewing mannan genomic analysis

OsIDD2, a zinc finger and INDETERMINATE DOMAIN protein, regulates secondary cell wall formation

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Journal of Integrative Plant Biology 2018年第2期60卷 130-143页

作者： Peng Huang Hideki Yoshida Kenji Yano Shunsuke Kinoshita Kyosuke Kawai Eriko Koketsu Masako Hattori Sayaka Takehara Ji Huang Ko Hirano Reynante Lacsamana Ordonio makoto matsuoka Miyako Ueguchi-Tanaka Bioscience and Biotechnology Center Nagoya University Nagoya 464-8601 Japan State Key Laboratory of Crop Genetics and Germplasm Enhancement Nanjing Agricultural University Nanjing 210095 China Graduate School of Agricultural and Life Sciences The University of Tokyo Tokyo 113-8657 Japan Plant Breeding and Biotechnology Division Philippine Rice Research Institute Maligaya Science City of Munoz 3119 The Philippines

Previously, we found 123 transcription factors（TFs） as candidate regulators of secondary cell wall（SCW）formation in rice by using phylogenetic and co-expression network analyses. Among them, we examined in this work the role of OsIDD_2, a zinc finger and indeterminate domain（IDD） family TF. Its overexpressors showed dwarfism, fragile leaves, and decreased lignin content, which are typical phenotypes of plants defective in SCW formation, whereas its knockout plants showed slightly increased lignin content.The RNA-seq and quantitative reverse transcription polymerase chain reaction analyses confirmed that some lignin biosynthetic genes were downregulated in the OsIDD_2-overexpressing plants, and revealed the same case for other genes involved in cellulose synthesis and sucrose metabolism. The transient expression assay using rice protoplasts revealed that OsIDD_2 negatively regulates the transcription of genes involved in lignin biosynthesis, cinnamyl alcohol dehydrogenase 2 and 3（CAD_2 and 3）, and sucrose metabolism, sucrose synthase 5（SUS_5）, whereas an Alpha Screen assay, which can detect the interaction between TFs and their target DNA sequences, directly confirmed the interaction between OsIDD_2 and the target sequences located in the promoter regions of CAD_2 and CAD_3. Based on these observations, we conclude that OsIDD_2 is negatively involved in SCW formation and other biological events by downregulating its target genes.

关键词： IDD Figure OsIDD2 a zinc finger and INDETERMINATE DOMAIN protein SCW

Toward a Molecular Understanding of Plant Hormone Actions

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Molecular Plant 2016年第1期9卷 1-3页

作者： Chuanyou Li Jiayang Li Kang Chong Klaus Harter Youngsook Lee Jeffrey Leung Enrico Martinoia makoto matsuoka Remko Offringa Lijia Qu Julian Schroeder Yunde Zhao Department of Physiology Center for Plant Molecular Biology (ZMBP) University of T&uuml bingen Auf der Morgenstelle 32 72076 T&uuml bingen Germany Unit&eacute Propre de Recherche 2355 Centre National de la Recherche Scientifique Institut des Sciences du V&eacute gé tal Saclay Plant Sciences Avenuede la Terrasse B&acirc timent 23 91198 Gif-sur-Yvette Cedex France Cell and Developmental Biology Section Division of Biological Sciences University of California San Diego 9500 Gilman Drive La Jolla CA 92093-0116 USA

Plants rely on a diverse set of small-molecule hormones to regu- late every aspect of their biological processes including develop- ment, growth, and adaptation. Since the discovery of the first plant hormone, auxin, ... 详细信息

关键词： @@

Isolation of a Novel Lodging Resistance QTL Gene Involved in Strigolactone Signaling and Its Pyramiding with a QTL Gene Involved in Another Mechanism

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Molecular Plant 2015年第2期8卷 303-314页

作者： Kenji Yano Taiichiro Ookawa Koichiro Aya Yusuke Ochiai Tadashi Hirasawa Takeshi Ebitani Takeshi Takarada Masahiro Yano Toshio Yamamoto Shuichi Fukuoka Jianzhong Wu Tsuyu Ando Reynante Lacsamana Ordonio Ko Hirano makoto matsuoka Bioscience and Biotechnology Center Nagoya University Nagoya Aichi 464-8601 Japan Graduate School of Agriculture Tokyo University of Agriculture and Technology Fuchu Tokyo 183-8509 Japan Agricultural Research Institute Toyama Agricultural Forestry & Fisheries Research Center Toyama 939-8153 Japan National Institute of Agrobiological Sciences Tsukuba Ibaraki 305-8602 Japan These authors contributed equally to this article.

Lodging has been a major roadblock to attaining increased crop productivity. In an attempt to understand the mechanism for culm strength in rice, we isolated an effective quantitative trait locus （QTL）, STRONG CULM3 （SCM3）, the causal gene of which is identical to rice TEOSINTE BRANCHED1 （OsTB1）, a gene previously reported to positively control strigolactone （SL） signaling. A near-isogenic line （NIL） carrying SCM3 showed enhanced culm strength and increased spikelet number despite the expected decrease in tiller number, indicating that SL also has a positive role in enhancing culm strength and spikelet number. We produced a pyramiding line carrying SCM3 and SCM2, another QTL encoding AP01 involved in panicle development. The NIL-SCM2＋SCM3 showed a much stronger culm than NIL-SCM2 and NIL-SCM3 and an increased spikelet number caused by the additive effect of these QTLs. We discuss the importance of utilizing suitable alleles of these STRONG CULM QTLs without inducing detrimental traits for breeding.

关键词： culm OsTB1 strigolactone lodging resistance quantitative trait loci

SMALL ORGAN SIZE 1 and SMALL ORGAN SIZE 2/DWARF AND LOW-TILLERING Form aComplex to Integrate Auxin and Brassinosteroid Signaling in Rice

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Molecular Plant 2017年第4期10卷 590-604页

作者： Ko Hirano Hideki Yoshida Koichiro Aya Mayuko Kawamura makoto Hayashi Tokunori Hobo Karma Sato-lzawa Hidemi Kitano Miyako Ueguchi-Tanaka makoto matsuoka Bioscience and Biotechnology Center Nagoya University Nagoya 464-8601 Japan

Although auxin and brassinosteroid （BR） synergistically control various plant responses, the molecular mechanism underlying the auxin-BR crosstalk is not wen understood. We previously identified SMOS1, an auxin-regulated APETALA2-type transcription factor, as the causal gene of the small organ size 1 （smosl） mutant that is characterized by a decreased final size of various organs in rice. In this study, we identified another smos mutant, smos2, which shows the phenotype indistinguishable from smosl. SMOS2 was identical to the previously reported DWARF AND LOWoTILLERING （DLT）, which encodes a GRAS protein involved in BR signaling. SMOS1 and SMOS2/DLT physically interact to cooperatively enhance transcriptional transactivation activity in yeast and in rice nuclei. Consistently, the expression of OsPHI-1, a direct target of SMOS1, is upregulated only when SMOS1 and SMOS2/DLT proteins are both present in rice ceils. Taken together, our results suggest that SMOS1 and SMOS2/DLT form a keystone complex on auxin-BR signaling crosstalk in rice.

关键词： auxin brassinosteroid crosstalk rice transcription factor

Novel biomarkers for early detection of gastric cancer

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World Journal of Gastroenterology 2023年第17期29卷 2515-2533页

作者： Tasuku matsuoka Masakazu Yashiro Molecular Oncology and Therapeutics Osaka Metropolitan University Graduate School of MedicineOsaka 5458585Japan

Gastric cancer(GC)remains a leading cause of cancer-related death worldwide.Less than half of GC cases are diagnosed at an advanced stage due to its lack of early symptoms.GC is a heterogeneous disease associated with a number of genetic and somatic mutations.Early detection and effective monitoring of tumor progression are essential for reducing GC disease burden and mortality.The current widespread use of semi-invasive endoscopic methods and radiologic approaches has increased the number of treatable cancers:However,these approaches are invasive,costly,and time-consuming.Thus,novel molecular noninvasive tests that detect GC alterations seem to be more sensitive and specific compared to the current methods.Recent technological advances have enabled the detection of blood-based biomarkers that could be used as diagnostic indicators and for monitoring postsurgical minimal residual disease.These biomarkers include circulating DNA,RNA,extracellular vesicles,and proteins,and their clinical applications are currently being investigated.The identification of ideal diagnostic markers for GC that have high sensitivity and specificity would improve survival rates and contribute to the advancement of precision medicine.This review provides an overview of current topics regarding the novel,recently developed diagnostic markers for GC.

关键词： Gastric cancer Diagnostic biomarkers Early detection Liquid biopsy