Papers - ISHIKAWA Ryuji
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Genetic diversity on farm in Japanese paper mulberry
Dinh Thi Lam, Katsunori Tanaka, Akihiko Takashima, Ayako Shibutani, Ryuji Ishikawa
Ecology and Evolution 15 ( e70828 ) 2025.1
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Origin of domesticated water chestnuts (Trapa bispinosa Roxb.) and genetic variation in wild water chestnuts.
Lam DT, Kataoka T, Yamagishi H, Sun G, Udatsu T, Tanaka K, Ishikawa R
Ecology and evolution 14 ( 2 ) e10925 2024.2
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Editorial: Mining and utilization of favorable gene resources in rice.
Wang Y, Li X, Ishikawa R, Luo X
Frontiers in plant science 14 1289069 2023
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Comparison of rice yield potential in Ethiopia and in northern Japan: an experimental and modeling study
Journal of Agricultural Meteorology 81 ( 1 ) 2025.1
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Polyphyletic domestication and inter-lineage hybridization magnified genetic diversity of cultivated melon, Cucumis melo L.
Katsunori Tanaka, Gentaro Shigita, Tran Phuong Dung, Phan Thi Phuong Nhi, Mami Takahashi, Yuki Monden, Hidetaka Nishida, Ryuji Ishikawa, Kenji Kato
2025.1
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地域遺伝資源による次世代の作物育種-シークヮーサーにみる育種科学の貢献のありかた
石川隆二
日本の科学者 59 ( 9 ) 2024.9
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The attraction of genus <i>Oryza</i>
Ishikawa Ryo, Yamagata Yoshiyuki, Koide Yohei, Ishii Takashige, Ishikawa Ryuji, Akimoto Masahiro, Tsuda Katsutoshi, Fujita Daisuke
Breeding Research 25 ( 1 ) 50 - 54 2023.6
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Melon diversity on the Silk Road by molecular phylogenetic analysis in Kazakhstan melons.
Tanaka K, Sugiyama M, Shigita G, Murakami R, Duong TT, Aierken Y, Artemyeva AM, Mamypbelov Z, Ishikawa R, Nishida H, Kato K
Breeding science 73 ( 2 ) 219 - 229 2023.4
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New Hybrid Spikelet Sterility Gene Found in Interspecific Cross between Oryza sativa and O. meridionalis.
Ichitani K, Toyomoto D, Uemura M, Monda K, Ichikawa M, Henry R, Sato T, Taura S, Ishikawa R
Plants (Basel, Switzerland) 11 ( 3 ) 2022.1
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Triploid Wild Rice (BKK) Strain Found in Bangkok Originated from Hybridizations among Three Parental Oryza Species.
So Makabe, Htet Aung Htut, Hiroko Takahashi, Sayaka Shida, Masahiro Akimoto, Hathairat Urairong, Ryuji Ishikawa, Tadashi Sato, Yo-Ichiro Sato, Ikuo Nakamura （2022）
American Journal of Plant Sciences 13 ( 1 ) 36 - 49 2022.1
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New Hybrid Spikelet Sterility Gene Found in Interspecific Cross between Oryza sativa and O. meridionalis.
Katsuyuki Ichitani , Daiki Toyomoto, Masato Uemura , Kentaro Monda , Makoto Ichikawa, Robert Henry， Tadashi Sato, Satoru Taura and Ryuji Ishikawa
Plants 11 ( (3) ) 1 - 15 2021.12
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Classification of archaic rice grains excavated at the Mojiaoshan site within the Liangzhu site complex reveals an Indica and Japonica chloroplast complex
Tanaka, K., C. Zhao, N. Wang, S. Kubota, M. Kanehara, N. Kamijo, R. Ishikawa, H. Tasaki, M. Kanehara, B. Liu, M. Chen, S. Nakamura, T. Udatsu, C. Wang
Food Prod. Process. Nutr. 2 ( 15 ) 1 - 12 2020.12
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Can genetic diversity in paper mulberry tell us origins of historical papers?
Ryuji Ishikawa
90 35 - 42 2020.12
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Genetic study of diversity and blast resistance in Ethiopian rice cultivars adapted to different ecosystems.
Taddesse L., Y. Fukuta, R. Ishikawa
Breeding Science 70 ( 3 ) 303 - 312 2020.6
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Genetic diversity of preserved rice seed samples from the Mikawa area, Japan, stored in the Meiji era.
Muto, C., K. Tanaka, H. Tabuchi, N. Kurauchi, Y-I. Sato, R. Ishikawa
Breeding Science 70 ( 3 ) 347 - 354 2020.6
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Genetic diversity of preserved rice seed samples from the Mikawa area, Japan, stored in the Meiji era.
Muto C, Tanaka K, Tabuchi H, Kurauchi N, Sato YI, Ishikawa R
Breeding science 70 ( 3 ) 347 - 354 2020.6
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Genetic study of diversity and blast resistance in Ethiopian rice cultivars adapted to different ecosystems.
Taddesse L, Fukuta Y, Ishikawa R
Breeding science 70 ( 3 ) 303 - 312 2020.6
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Molecular and Morphological Divergence of Australian Wild Rice.
Lam DT, Ichitani K, Henry RJ, Ishikawa R
Plants (Basel, Switzerland) 9 ( 2 ) 2020.2
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カジノキの遺伝的多様性は古文書の由来を説き明かせるか
石川 隆二
古文書研究 90 35 - 42 2020
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Segregation Distortion Observed in the Progeny of Crosses Between Oryza sativa and O. meridionalis Caused by Abortion During Seed Development.
Toyomoto D, Uemura M, Taura S, Sato T, Henry R, Ishikawa R, Ichitani K
Plants (Basel, Switzerland) 8 ( 10 ) 2019.10
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Genetic variation in rice (Oryza sativa L.) germplasm from northern Laos.
Muto, C, K. Ebana, K. Kawano, V. Bounphanousay, C. Bounphanousay, K. Kanyavong, P. Inthapanya, C. Boualaphanh, T. Sato, R. Ishikawa, Y-I Sato, S. Yanagihara and Y. Fukuta
Breed. Sci. 70 1 - 7 2019.7
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Genetic diversity among perennial wild rice Oryza rufipogon Griff., in the Mekong Delta
1 - 14 2019.2
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Molecular discrimination of landraces of Citrus species in the Okinawa，Japan
Dinh Thi Lam and Ryuji Ishikawa
Genet. Resour. Crop Ev. 66 ( 2 ) 321 - 333 2019.2
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カジノキの遺伝的多様性は古文書の由来を説き明かせるか
石川 隆二
国際シンポジウム「料紙研究×自然科学：古文書研究の新展開」要旨集 － 24 - 28 2019
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Diverse genetic variation in maternal lineages with high heterogeneity among in-situ conserved wild rice (Oryza rufipogon Griff.) developed in Thailand
Reunreudee Kaewcheenchai, Udompan Promnart, Kasem Soontrajarn, Somsong Chotechuen，Songkran Chitrakon, Honami Yuki, Seiya Saito, Yo-Ichiro Sato and Ryuji Ishikawa
Breed. Sci. 68 ( 5 ) 614 - 621 2018.12
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Sequencing of Australian wild rice genomes reveals ancestral relationships with domesticated rice
Brozynska，M., D. Copetti, A. Furtado, R. A. Wing, D. Crayn, G. Fox, R. Ishikawa, R. J. Henry
Plant Biot. Jour 15 2017.1
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The origin and diversification of wx allele of glutinous indica rice landraces through the traditional slash and burn system in northern Laos
Muto, C., R. Ishikawa, K.M. Olsen, K. Kawano, C. Bounphanousay, T. Matoh, Y-I. Sato
Japan. Breed. Sci. 2016.9
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Multi-lineages of of Shiikuwasha (Citrus depressa Hayata) evaluated by using whole chloroplast genome sequences and its bio-diversity in Okinawa, Japan.
Ishikawa, R., N. Badenoch, K. Miyagi, K. Medoruma, T. Osada, M. Oonishi.
Breed. Sci 66 ( 4 ) 9 2016.7
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Inconsistent diversities between nuclear and plastid genomes of AA genome species in the genus Oryza.
Hao Y, M Akimoto, R Kaewcheenchai, M Sotowa, T Ishii, R Ishikawa
Genes Genet Syst. 2016.3
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Morphological and molecular genetics of ancient remains and modern rice confirm diversity in ancient Japan. Genetic Resources and Crop Evolution.
Katsunori Tanaka, Nobuhiko Kamijo, Hiroaki Tabuchi, Kuniko Hanamori, Ryuji Matsuda, Junko Suginomori, Yo-Ichiro Sato, Tetsuro Udatsu, Ryuji Ishikawa
Genetic Resources and Crop Evolution 63 ( 3 ) 447 - 464 2015.7
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Archaeogenetic study of prehistoric rice remains from Thailand and India: evidence of early japonica in South and Southeast Asia.
Castillo, C., K. Tanaka, Y-I Sato, R. Ishikawa, B. Bellina, C. Higham, N, Chang, R. Mohanty, M. Kajale, D. Fuller
Archae. Anthrop. Sci. 2015.5
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Chloroplast Genome of Novel Rice Germplasm Identified in Northern Australia.
Marta Brozynska, Ernnie Syafika Omar, Agnelo Furtado, Darren Crayn, Bryan Simon, Ryuji Ishikawa, Robert James Henry
Tropical plant biology 7 ( 3-4 ) 111 - 120 2014.12
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Genetic polymorphisms in Japanese fragrant landraces and novel fragrant allele domesticated in northern Japan.
Ootsuka,K., I Takahashi, K. Tanaka, T. Itani, H. Tabuchi, T. Yoshihashi, A. Tonouchi, R. Ishikawa
Breeding Science 64 ( 2 ) 115 - 124 2014.6
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Molecular relationships between Australian annual wild rice, Oryza meridionalis, and two related perennial forms.
Masahiro Sotowa, Kenta Ootsuka, Yuu Kobayashi, Yin Hao, Katsunori Tanaka, Katsuyuki Ichitani, Jonathan M Flowers, Michael D Purugganan, Ikuo Nakamura, Yo-Ichiro. Sato, Tadashi Sato, Darren Crayn, Bryan Simon, Daniel LE Waters, Robert J Henry and Ryuji Ishikawa
Rice 2013.8
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A population genetics-based approach reveals candidate gene regions important inthe determination of resistance specificity for the Pik family of rice blast resistance genes.
Ikuo Ashikawa, Ryuji Ishikawa
J Gen Plant Pathol 79 ( 3 ) 178 - 181 2013.3
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DDM1 (decrease in DNA methylation) genes in rice (Oryza sativa)
Higo H, Tahir M, Takashima K, Miura A, Watanabe K, Tagiri A, Ugaki M, Ishikawa R, Eiguchi M, Kurata N, Sasaki T, Richards E, Takano M, Kishimoto N,Kakutani T, Habu Y.
Mol Genet Genomics 287 ( 10 ) 785 - 792 2012.4
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Population structural analysis of an in-situ conservation site for wild rice in Laos
Wang, YP, C. Bounphanousay, K. Kanyavong, I. Nakamura, Y-I. Sato, T. Sato, H-S. Zhang, L-H Tang , R. Ishikawa
Genes Genet. Syst. 87 311 - 322 2012.3
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Chloroplast genome sequence confirms distinctness of Australian and Asian wild rice.
Waters, D. L. E., CJ. Nock, R. Ishikawa, N. Rice, and RJ. Henry
Ecology and Evolution 2 211 - 217 2012.1
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Morphological Study on the Appearance and Structure of Cracked Rice Grains in both the Breeding and the Recommended Rice Cultivars in Aomori Prefecture
KAWASAKI Michio, KAWAMURA Yoichi, IWASAWA Norio, ISHIKAWA Ryuji
Tohoku Journal of Crop Science 54 ( 0 ) 29 - 32 2012
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morphological study on the appearance and structure of cracked rice grains in both the breeding and the recommended ruce cyltivars in aomori prefecture
Tohoku Journal of Crop science 54 29 - 32 2011.3
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Rice archaeological remain and possibility of DNA archaeology
Katsunori Tanaka, Takeshi Honda, and Ryuji Ishikawa
ARCHAEOLOGICAL AND ANTHROPOLOGICAL SCIENCES 2 ( 2 ) 69 - 78 2010.6
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Australian Oryza: Utility and Conservation.
Henry, RJ. ,N. Rice, D. L. E. Waters, S. Kasem, R. Ishikawa, Y. Hao, S. Dillon, D. Crayn, R. Wing and D. Vaughan．
Rice 3 ( 4 ) 235 - 241 2010.4
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Haplotype diversity and molecular evolution at the rice Pikm locus for blast Resistance
Ashikawa, I., J. Wu, T. Matsumoto, and R. Ishikawa
Journal of General Plant Pathology 76 37 - 42 2010.2
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Australian Oryza: Utility and Conservation.
Henry, RJ. ,N. Rice, D. L. E. Waters, S. Kasem, R. Ishikawa, Y. Hao, S. Dillon, D. Crayn, R. Wing and D. Vaughan．
Rice 3 2009.12
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Molecular constitution of weedy rice (Oryza sativa L.) found in Okayama prefecture, Japan. joint worked
Breeding Science 59 ( 3 ) 229 - 236 2009.9
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Analysis of Genetic Diversity through Breeding of Japanese Rice Cultivars
TABUCHI Hiroaki, ISHIKAWA Ryuji, SATO Yo-Ichiro, ASHIKAWA Ikuo
78 348 - 349 2009.3
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前川遺跡亜から出土する植物炭化物におけるDNAならびにプラント・オパール解析
田中克典・宇田津徹朗・石川隆二
青森県埋蔵文化財調査報告書第４７５集 前川遺跡 第２分冊 2 97 - 100 2009.3
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Mapping of rice Ur1 (Undulated rachis-1) gene with effect on increasing spikelet number per panicle and sink size, and development of selection markers for the breeding by the use of Ur1
Imai, K., M. MURAI, Y. Hao , Y. CHIBA, A. CHIBA and R. ISHIKAWA
Hereditas 146 1 - 9 2009.2
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Analysis of Genetic Diversity through Breeding of Japanese Rice Cultivars
Tabuchi Hiroaki, Ishikawa Ryuji, Sato Yo-Ichiro, Ashikawa Ikuo
Abstracts of Meeting of the CSSJ 227 ( 0 ) 348 - 348 2009
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Contribution of plant breeding toward future environmental issue in the Earth—“Rice breeding in Southeast Asian countries under global environmental change; Current and future subject” in 114<sup>th</sup> autumn symposium—
Ishikawa Ryuji, Sato Yo-ichiro
Breeding Research 11 ( 2 ) 59 - 60 2009
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Australian Oryza : Utility and Conservation
石川 隆二
Rice Online first 2009
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Genetic analysis of spontaneous mutants derived from local variety 'Akage'
Breeding Research Breeding Science ( 10 ) 135 - 143 2008.12
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Genetic analysis of spontaneous mutants derived from local variety 'Akage'
Imai Katsunori, Chiba Yuki, Tamura Yuka, Takeya Atsuko, Murai Masayuki, Sato Yo-Ichiro, Ishikawa Ryuji
Breeding Research 10 ( 4 ) 135 - 143 2008
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Species identification of 6000-years-old beans from Sannai-Maruyama site, Aomori, Japan
SAKAMOTO S., ISHIKAWA, R., NAKAMURA, I., SATO, Y-I. AND SHIMAMOTO, S.
Journal of fossil Research 39 1 - 6 2006.7
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Genetic erosion from modern varieties into traditional upland rice cultivars (Oryza sativa L.) in northern Thailand
ISHIKAWA, R. S. YAMANAKA Y. FUKUTA S. CHITRAKON C. BOUNPHANOUSAY K. KANYAVONG L-H. TANG I. NAKAMURA T. SATO AND Y-I. SATO
Genet. Resour. Crop Evol. 53 245 - 252 2006.3
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Inventory study and parentage analysis in a beech (Fagus crenata Blume) forest on Mt. Takakuramori
AKADA Shinji, SENDA Mineo, ISHIKAWA Ryuji, HARADA Takeo, NIIZEKI Minoru, MAKITA Hajime
( 3 ) 32 - 36 2006
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Origin of weedy rice grown in Bhutan and the force of genetic diversity
ISHIKAWA R., TOKI N., IMAI K., SATO Y.-I., YAMAGISHI H., SHIMAMOTO Y, UENO K., MORISHIMA H. AND SATO T
Genet. Resour. Crop Evol. 52 ( 395 ) 403 2005.9
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Morpho-physiological Characters and Geographical Distribution of japonica and indica Weedy Rice (Oryza sativa) in Okayama Prefecture, Japan
Ushiki Jun, Ishii Toshio, Ishikawa Ryuji
Breeding Research 7 ( 4 ) 179 - 187 2005
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Development of DNA markers distinguishing individuals of beech (Fagus crenata Blume) in Shirakami Mountains
AKADA Shinji, SENDA Mineo, ISHIKAWA Ryuji, HARADA Takeo, NIIZEKI Minoru, MAKITA Hajime
1 42 - 47 2004
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Polymorphic Analysis of Landraces of Japanese Rice using Microsatellite Markers
Okoshi Masako, Hu Jingjie, Ishikawa Ryuji, Fujimura Tatsuhito
Breeding Research 6 ( 3 ) 125 - 133 2004
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Genetical studies of isoenzymes in rice plantsII-Description of individual isozyme markers and several isozyme genes related to starch synthesis in rice-
KINOSAHITA, T. AND R. ISHIKAWA
Recent Res. Devel. Genet 3 163 - 203 2003.1
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Genetic resources of primitive upland rice in Laos
56 ( 2 ) 192 - 197 2002.8
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Origin of cytoplasm substituted rice cultivars found in Japan
ISHIKAWA R., I. NAKAMURA, T. NISHIHARA, M. KIKUCHI·, M. SENDA, S. AKADA,T. HARADA, M. NIIZEKI
Theor. Appl. Genet. 1905 608 - 613 2002.4
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「モチイネ栽培圏」の現状とWaxy座のdCAPS解析によるラオスのモチイネの起源
YAMANAKA Shinsuke, FUKUTA Yoshimichi, ISHIKAWA Ryuji, NAKAMURA Ikuo, SATO Tadashi, SATO Yo-Ichiro
Tropics 11 ( 2 ) 109 - 120 2002.3
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Different maternal origins of Japanese and upland rice populations
ISHIKAWA R., Y-I. SATO, T. TANG, I. NAKAMURA
Theor. Appl. Genet. 104 976 - 980 2002.3
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Genetical studies of isoenzymes in rice plants I –General Viewpoint-
KINOSAHITA, T. AND R. ISHIKAWA
Recent Res. Devel. Genet 2 43 - 95 2002.1
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Phylogenetic origin of waxy rice cultivars in Laos based on recent observations for “Glutinous Rice Zone” and dCAPS marker of Waxy gene
YAMANAKA S., Y. FUKUTA, R. ISHIKAWA, I. NAKAMURA, T. SATO, Y-I. SATO
Tropics 11 109 - 120 2002.1
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Phylogenetic Origin of Waxy Rice Cultivars in Laos Based on Recent Observations for "Glutinous Rice Zone" and dCAPS Marker of Waxy Gene
YAMANAKA Shinsuke, FUKUTA Yoshimichi, ISHKAWA Ryuji, NAKAMURA Ikuo, SATO Tadashi, SATO Yo-Ichiro
Tropics 11 ( 2 ) 109 - 120 2002
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ダイズにおける紫外線応答性MYB遺伝子サブファミリーのクローニングとその解析
清水 武史, 藤部 理恵子, 千田 峰生, 石川 隆二, 原田 竹雄, 新関 稔, 赤田 辰治
育種学研究 2 ( 2 ) 109 - 110 2000.6
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Breeding of mother plant of rice by using somaclonal variation.
NAKANO M., NIIZEKI M., SENDA M., ISHIKAWA R., AKADA S., HARADA T.
2 ( 1 ) 153 2000.4
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ソマクローナル変異を利用した稲育種のための母体の育成
Watanabe Hiroyuki, Matsukura Chiaki, Senda Mineo, Ishikawa Ryuji, Akada Sinji, Harada Takeo, Niizeki Minoru
Bulletin of the Faculty of Agriculture and Life Science,Hirosaki University ( 2 ) 1 - 6 2000.3
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Complex constitutive nature of Japanese upland rice, Oryza sativa L
ISHIKAWA, R., HARATA, Y., TUCHIMINE, Y. , SENDA, M., AKADA, S. , HARADA, T. AND M. NIIZEKI
Euphytica 98 197 - 203 1997.1
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Maize meetingにおけるトウモロコシ遺伝学の現状とこれから
石川 隆二
46 ( 3 ) 309 1996.9
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カルフォルニア大学バークレー校のFreeling研究室におけるトウモロコシの遺伝研究
石川 隆二
44 ( 3 ) 347 1994.9
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Somatic Cell Hybridization in Rice (Oryza sativa L.) and Birdsfoot Trefoil (Lotus corniculatus L.)
Nakajo Shinsuke, Niizeki Minoru, Harada Takeo, Ishikawa Ryuji, Saito Ken-ichi
Breeding science 44 ( 1 ) p79 - 81 1994.3
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Genotypic variation for 17 isozyme genes among Japanese upland varieties in rice
ISHIKAWA R., MAEDA Kazuharu, HARADA Takeo, NIIZEKI Minoru, SAITO Ken-ichi
Breeding science 42 ( 4 ) p737 - 746 1992.12
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Reconstruction of Linkage Map with Isozyme, Morphological and Physiological Markers in Rice Chromosome 12
ISHIKAWA Ryuji, HARADA Takeo, NIIZEKI Minoru, SAITO Ken-ichi
Breeding science 42 ( 2 ) p235 - 244 1992.6
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Asymmetric Somatic Hybrid Calli between Leguminous Species of Lotus corniculatus and Glycine max and Regenerated Plants from the Calli
KIHARA Makoto, Kui-Nan CAI, ISHIKAWA Ryuji, HARADA Takeo, NIIZEKI Minoru, SAITO Ken-ichi
Breeding science 42 ( 1 ) p55 - 64 1992.3
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Classification of Japanese rice varieties into indica and japonica types by using isozyme genotypes
ISHIKAWA R., MAEDA Kazuharu, HARADA Takeo, NIIZEKI Minoru, SAITO Kenichi
Breeding science 41 ( 4 ) p605 - 622 1991.12
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Linkage Analysis of Nine Isozyme Genes on the Conventional Linkage Map in Rice
ISHIKAWA Ryuji, MORISHIMA Hiroko, KINOHSITA Toshiro, HARADA Takeo, NIIZEKI Minoru, SAITO Kenichi
Breeding science 41 ( 2 ) p265 - 272 1991.6