2024
D.T. Lam, T Kataoka, H Yamagishi, G Sun, T Udatsu, K Tanaka, R Ishikawa (2024) Origin of domesticated water chestnuts (Trapa bispinosa Roxb.), and genetic variation in wild water chestnuts. Jan24, Accept.Ecology and Evolution.
2023
Ying Wang，Xueyong Li， Ryuji Ishikawa， Xiaojin Luo：Editorial: Mining and utilization of favorable gene resources in rice. Frontier of Plant Science. 14, https://doi.org/10.3389/fpls.2023.1289069,14 Sep, 2023.
Xueyong Li， Xiaojin Luo, Ryuji Ishikawa: Mining and utilization of favorable gene resources in rice. Frontiers org, Media S.A. Switzerland. ISBN 978-2-8325-3608-7, DOI 10.3389/978-2-8325-3608, 13 Sep, 2023.
2022
So Makabe, Htet Aung Htut, Hiroko Takahashi, Sayaka Shida, Masahiro Akimoto, Hathairat Urairong, Ryuji Ishikawa, Tadashi Sato, Yo-Ichiro Sato, Ikuo Nakamura （2022）Triploid Wild Rice (BKK) Strain Found in Bangkok Originated from Hybridizations among Three Parental Oryza Species. American Journal of Plant Sciences, 2022, 13(1): 36-49(査読有)
Katsuyuki Ichitani , Daiki Toyomoto, Masato Uemura , Kentaro Monda , Makoto Ichikawa, Robert Henry， Tadashi Sato, Satoru Taura and Ryuji Ishikawa (2022) New Hybrid Spikelet Sterility Gene Found in Interspecific Cross between Oryza sativa and O. meridionalis. Plants 2022, 11, 378. https://doi.org/10.3390/plants11030378(査読有)
Taddesse L., YL. Tanaka, R. Ishikawa （2021） Genetic diversity of African wild rice at the edge of its distribution．Genet. Resour. Crop Evol. Publishe :07Apr, GRES-D-19-00553R(査読付き)
2020
Lam, DT., K. Ichitani, RJ. Henry, R. Ishikawa (2020) Molecular and morphological divergence of Australian wild rice. Plants 2020, 9(2), 224; https://doi.org/10.3390/plants9020224
(査読有)
石川隆二 :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. 日本古文書学会編集古文書書研究 90 2020年12月:35-42. (査読付き)
Muto, C., K. Tanaka, H. Tabuchi, N. Kurauchi, Y-I. Sato, R. Ishikawa (2020) Genetic diversity of preserved rice seed samples from the Mikawa area, Japan, stored in the Meiji era. Breed. Sci.
70（3）：347−354
(査読有)
Taddesse L., Y. Fukuta, R. Ishikawa (2020) Genetic study of diversity and blast resistance in Ethiopian rice cultivars adapted to different ecosystems. Breeding
Science 2020 Jun; 70(3): 303–312. (査読有)
2019
Toyomoto, D., M. Uemura, S. Taura, T. Sato, R. Henry, Ishikawa, R., and K. Ichitani （2019） Segregation Distortion Observed in the Progeny of Crosses Between Oryza sativa and O. meridionalis Caused by Abortion During Seed Development. Plants 2019, 8, 398; doi:10.3390/plants8100398
(査読有)
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 (2019) Genetic variation in rice (Oryza sativa L.) germplasm from northern Laos. Breed. Sci. doi:10.1270/jsbbs.18086(査読有)
Lam, DT,B C Buu, TL Lang, K Toriyama, I Nakamura and R Ishikawa (2019) Genetic diversity among perennial wild rice Oryza rufipogon Griff., in the Mekong Delta. Ecology and Evolution 2019;1–14. DOI: 10.1002/ece3.4978(査読有)
2018
Dinh Thi Lam and Ryuji Ishikawa （2018）Molecular discrimination of landraces of Citrus species in the Okinawa，Japan. Genet. Resour. Crop Evol. 66：321−333．(Published online: 21 Nov 2018) https://doi.org/10.1007/s10722-018-0710-x()
DOI 10.1007/s10722-018-0710-x(査読有)
Kaewcheenchai R, U Promnart, K Soontrajarn, S Chotechuen，S Chitrakon, H Yuki, S Saito, Y-I Sato and R Ishikawa (2018) Diverse genetic variation in maternal lineages with high heterogeneity among in-situ conserved wild rice (Oryza rufipogon Griff.) developed in Thailand. Breed. Sci. 68 : 614-621.
(査読有)
2017
Brozynska，M., D. Copetti, A. Furtado, R. A. Wing, D. Crayn, G. Fox, R. Ishikawa, R. J. Henry (2017) Sequencing of Australian wild rice genomes reveals ancestral relationships with domesticated rice Plant Biot. Jour 15: 765-774. （査読有）
2016
Muto, C., R. Ishikawa, K.M. Olsen, K. Kawano, C. Bounphanousay, T. Matoh, Y-I. Sato (2016) The origin and diversification of wx allele of glutinous indica rice landraces through the traditional slash and burn system in northern Laos. Breed. Sci. 66:580-590.（査読有）DOI 10.1270/jsbbs.16032
Ishikawa, R., N. Badenoch, K. Miyagi, K. Medoruma, T. Osada, M. Oonishi. (2016) Multi-lineages of of Shiikuwasha (Citrus depressa Hayata) evaluated by using whole chloroplast genome sequences and its bio-diversity in Okinawa, Japan. Breed. Sci. 66:490-498. （査読有）
Hao, Y., M. Akimoto, R. Kaewcheenchai, M. Sotowa, T. Ishii, and R. Ishikawa (2015) Inconsistent diversities between nuclear and plastid genomes of AA genome species in the genus Oryza. Genes & Genetic Systems 2016 Mar 23;90(5):269-81. doi: 10.1266/ggs.14-00063. Epub 2015 Dec 18. (査読有)
Tanaka, K., N Kamijo, H Tabuchi, K Hanamori, R Matsuda, J Suginomori, Y-I Sato, T Udatsu, R Ishikawa (2015) Morphological and molecular genetics of ancient remains and modern rice confirm diversity in ancient Japan. Genetic Resources and Crop Evolution. Genetic Resources and Crop Evolution March 2016, Volume 63, Issue 3, pp 447-464 First online: 11 July 2015 (査読有)10.1007/s10722-015-0262-2
Castillo, C., K. Tanaka, Y-I Sato, R. Ishikawa, B. Bellina, C. Higham, N, Chang, R. Mohanty, M. Kajale, D. Fuller (2015) Archaeogenetic study of prehistoric rice remains from Thailand and India: evidence of early japonica in South and Southeast Asia. Archae. Anthrop. Sci. DOI10.1007/s12520-015-0236-5 Date: 10 May 2015(査読有)
2014
Marta Brozynska & Ernnie Syafika Omar &Agnelo Furtado & Darren Crayn & Bryan Simon & Ryuji Ishikawa & Robert James Henry
(査読有)
Brozynska M., E. Syafika, OA. Furtado, D. Crayn, B. Simon, R. Ishikawa, RJ. Henry (2014) Chloroplast Genome of Novel Rice Germplasm Identified in Northern Australia. Tropical Plant Biol. (2014) 7:111–120. (査読有)
10.1007/s12042-014-9142-8
Ootsuka,K., I Takahashi, K. Tanaka, T. Itani, H. Tabuchi, T. Yoshihashi, A. Tonouchi, R. Ishikawa (2014) Genetic polymorphisms in Japanese fragrant landraces and novel fragrant allele domesticated in northern Japan. Breeding Science 64:115-124. (査読有り)
2013
Sotowa, M., K. Ootsuka, Y. Kobayashi, Y. Hao, K. Tanaka, K. Ichitani, JM. Flowers, M D .Purugganan, I. Nakamura, Y-I. Sato, T. Sato, D. Crayn, B. Simon, D. LE. Waters, R. J. Henry and R. Ishikawa (2013) Molecular relationships between Australian annual wild rice, Oryza meridionalis, and two related perennial forms. Rice 2013, 6:26 doi:10.1186/1939-8433-6-26
Sotowa, M, (14名略)，R. Ishikawa (2013) Molecular relationships between Australian annual wild rice, Oryza meridionalis, and two related perennial forms. Rice 6:26 doi:10.1186/1939-8433-6-26 (査読有)
Ashikawa, I. and R. Ishikawa (2013) A population genetics-based approach reveals candidate gene regions important inthe determination of resistance specificity for the Pik family of rice blast resistance genes. J Gen Plant Pathol J Gen Plant Pathol 79:178-181.(査読有)
Ashikawa, I. and R. Ishikawa (2013) A population genetics-based approach reveals candidate gene regions important inthe determination of resistance specificity for the Pik family of rice blast resistance genes. J Gen Plant Pathol J Gen Plant Pathol 79:178-181.(査読有)
Wang, YP, C. Bounphanousay, K. Kanyavong, I. Nakamura, Y-I. Sato, T. Sato, H-S. Zhang, L-H Tang , R. Ishikawa (2012) Population structural analysis of an in-situ conservation site for wild rice in Laos Genes Genet. Syst. 87:311-322. (査読有)
2012
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. (2012) DDM1 (decrease in DNA methylation) genes in rice (Oryza sativa). Mol Genet Genomics. 287(10):785-92. (査読有)
2011 7Dec
Waters, D. L. E., CJ. Nock, R. Ishikawa, N. Rice, and RJ. Henry (2012) Chloroplast genome sequence confirms distinctness of Australian and Asian wild rice. Ecology and Evolution 2:211-217. (査読有)
2011
川崎通夫・川村陽一・岩澤紀生・石川隆二(2011) 青森県育成・奨励水稲品種における胴割れ米の発現と構造に関する形態学的研究. 日本作物学会東北支部会報54: 29-32.
2010
Tanaka, K., T. Honda, R. Ishikawa. Rice archaeological remain and possibility of DNA archaeology. Arch. Anth.Sci. 2:69-78, 2010 (査読有)
商業誌 石川隆二．イネの原産地と日本への伝播．食品と容器51:470-477, 2010
Ashikawa, I., J. Wu, T. Matsumoto, and R. Ishikawa. (2009)Haplotype diversity and molecular evolution at the rice Pikm locus for blast Resistance Journal of General Plant Pathology (2009) 76:137-42(査読有)
2009
Akasaka，M., J. Ushiki, H. Iwata, R. Ishikawa and T. Ishii. Genetic relationships and diversity of weedy rice (Oryza sativa L.) and cultivated rice varieties in Okayama Prefecture, Japan. Breeding Science 59:401-409, 2009(査読有)
Imai, K., M. Murai, Ｙ. Hao , Y. Chiba, A. Chiba and R. Ishikawa. 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 Hereditas146:1-9, 2009(査読有)
Henry, RJ. ,N. Rice, D. L. E. Waters, S. Kasem, R. Ishikawa, Y. Hao, S. Dillon, D. Crayn, R. Wing and D. Vaughan．
(2010) Australian Oryza: Utility and Conservation. Rice 3:235-241. (査読有)
10.1007/s12284-009-9034-y
Kawasaki, A.,K. Imai, J. Ushiki, T. Ishii, and R. Ishikawa Molecular constitution of weedy rice (Oryza sativa L.) found in Okayama prefecture, Japan. Breeding Science Vol.59:229-236(2009) (査読有)
2008
今井克則・千葉悠貴・田村優佳・竹谷敦子・村井正之・佐藤洋一郎・石川隆二(2008)イネ在来系統‘赤毛’から生じた新規変異体の遺伝解析．育種学研究10:135-143．査読有
石川隆二 自然科学からみたイネの起源．ユーラシア農耕史（佐藤洋一郎監修，鞍田崇編）， PP165-207，臨川書店
2006
Sakamoto S., Ishikawa, R., Nakamura, I., Sato, Y-I. and Shimamoto, S. (2006) Species identification of 6000-years-old beans from Sannai-Maruyama site, Aomori, Japan. Journal of fossil Research 39:1-6.
日本化石学会誌 39:1-6(2006) (査読有)
Ishikawa, R. S. Yamanaka Y. Fukuta S. Chitrakon C. Bounphanousay K. Kanyavong L-H. Tang I. Nakamura T. Sato and Y-I. Sato : Genetic erosion from modern varieties into traditional upland rice cultivars (Oryza sativa L.) in northern Thailand．Genet. Resour. Crop Evol. (2006)53:245-252. (査読有)
Ushiki, J, T. Ishii and R. Ishikawa (2005) Morpho-physiological charaqcters and geographical distribution of japonica and indica weedy rice (Oryza sativa) in Okayama prefecture, Japan. Breeding Research 7: 179-187. (査読有)
Miyake, K., T. Ito, M. Senda, R. Ishikawa, T. Harada, M. Niizeki and S.Akada : R2R3-MYB transcription factors from Lotus corniculatus var. japonicus differentially regulated in roots and shoots in response to nitrogen starvation. Lotus Newslett. 34 :54-59, 2004. (査読有)
Yamada, M., Z. Lu, J.Shimazu, R. Ishikawa, M. Senda,S. Akada, T. Harada and M. Niizeki : Analysis of somaclonal variation by using landmarkers of genomic DNA clones in Rice. Rice Genet.Newslett. 21:6-8,2004.
Saito, M., M.Senda, R. Ishikawa, S. Akada, T. Harada and M. Niizeki: Characteristics of progeny plants originating from asymmetric somatic cell hybridization of birdsfoot trefoil(Lotus cornicuratus L.) and rice(Oryza sativa L.). Breed. Sci. 55:379-382, 2005.
島津樹一・千田峰生・石川隆二・赤田辰治・原田竹雄・新関 稔：イネ培養細胞における体細胞分裂期相同組換えの解析. 弘大農生報 7：9-13, 2005.
赤間義明・千田峰生・石川隆二・赤田辰治・原田竹雄・新関 稔：イネの培養細胞における相同組換えに関わる遺伝子の同定と機能の解明. 弘大農生報 7：14-20, 2005.（
Kasai, A., M. Watarai, S. Yumoto, S. Akada, R. Ishikawa, T. Harada, M. Niizeki and M. Senda (2004) Influence of PTGS on chalcone synthase gene family in yellow soybean seed coat. Breeding Science 52:355-360.
Ishikawa R., Toki N., Imai K., Sato Y.-I., Yamagishi H., Shimamoto Y, Ueno K., Morishima H. and Sato T. 2005. Origin of weedy rice grown in Bhutan and the force of genetic diversity. Genet. Resour. Crop Evol.52:395-403.
大越昌子・胡 景杰・石川隆二・藤村達人：マイクロサテライトマーカーを用いた日本の在来イネの分類． 育種学研究 6:125-133,2004.
(M. Okoshi, J. Hu , R. Ishikawa and T. Fujimura (2004) Polymorpic analysis of landraces of Japanese rice using microsatellite markers. Breeding Research 6 : 125-133.)
2003
Kinosahita, T. and R. Ishikawa (2003) Genetical studies of isoenzymes in rice plantsII-Description of individual isozyme markers and several isozyme genes related to starch synthesis in rice- Recent Res. Devel. Genet 3:163-203.
2002
Ishikawa R., I. Nakamura, T. Nishihara, M. Kikuchi·, M. Senda, S. Akada,T. Harada, M. Niizeki (2002) Origin of cytoplasm substituted rice cultivars found in Japan. Theor. Appl. Genet. 105(4):608-613.
Ishikawa R., Y-I. Sato, T. Tang, I. Nakamura (2002) Different maternal origins of Japanese lowland and upland rice populations. Theor. Appl. Genet. 104:976-980.
Wakasa, Y, R. Ishikawa, M. Niizeki, T. Harada, S. Jin, M. Senda and S. Akada (2003) Majin:A miniature DNA element associated with the genomes of Pome Fruit Trees Hort Science 38:17-20.
Kinosahita, T. and R. Ishikawa (2002) Genetical studies of isoenzymes in rice plants I –General Viewpoint- Recent Res. Devel. Genet 2:43-95.
Ishikawa R., S. Yamanaka, K. Kanyavong, Y. Fukuta, Y-I. Sato, L. Tang and T. Sato (2002) Genetic resources of primitive upland rice in Laos Economic Botany 56 : 192-197.
Senda M., A. Jumonji, S. Yumoto, R. Ishikawa, T. Harada, M. Niizeki, S. Akada (2002) Analysis of the duplicated CHS1 gene related to the suppression of the seed coat pigmentation in yellow soybeans Theor. Appl. Genet.104:1086-1091.
Yamanaka S., Y. Fukuta, R. Ishikawa, I. Nakamura, T. Sato, Y-I. Sato (2002) Phylogenetic origin of waxy rice cultivars in Laos based on recent observations for “Glutinous Rice Zone” and dCAPS marker of Waxy gene. Tropics 11:109-120.
Shimazu,J.,C., Matsukura, M. Senda, R. Ishikawa, S. Akada, T. Harada,T. Tabara and M. Niizeki (2001) Characterization of a DMC1 homologue, RiLIM15, in meiotic panicles, mitotic cultured cells and mature leaves of rice(Oryza sativa L.). Theor. Appl. Genet. 102: 1159-1163.
Shimizu, T., R. Fujibe, M. Senda, R. Ishikawa, T. Harada, M. Niizeki and S. Akada (2000) Molecular cloning and characterization of a subfamily of UV-B responsive MYB genes from soybean. Breed. Sci. 50:81-90.
Sunako, T., R. Ishikawa, M. Senda, S. Akada, M. Niizeki and T. Harada (2000) MdACS-5A (Accession No. AB034992) and 5B (Accession No. AB034993), Two Wound-Responsive Genes Encoding 1-Aminocyclopropane-1-Carboxylate Synthase in Apple. (PGR00-030) Plant Physiol. 122: 620.
Sunako, T., W. Sakuraba, M. Senda, S. Akada, R. Ishikawa, M. Niizeki and T. Harada (1999) An allele of the ripening-specific 1-aminocyclopropane-1-carboxylic acid synthase gene (ACS1) in apple fruit with a long strage life. Plant Physiology 119:1297-1303.
Shimizu, T., S. Akada, M. Senda, R. Ishikawa, T. Harada, M. Niizeki, and S.K. Dube (1999) Enhanced expression and differential inducibility of soybean chalcone synthase genes by supplement UV-B in dark-grown seedlings. Plant Mol Biol 39:785-795.
Watanabe, H. Masukura, M. Senda, R. Ishikawa, S. Akada,T. Harada and M. Niizeki (1999) Somaclonal variation used to produce mother plants in rice breeding programs. Bull Fac. Agric. Life Sci. Hirosaki Univ. 2:1-6.
Kaimori, N., M. Senda, R. Ishikawa, S. Akada, T. Harada and M. Niizeki (1998) Asymmetric somatic cell hybrids between alfalfa and birdsfoot trefoil. Breeding Sci. 48:29-34.
Ishikawa, R., Harata, Y., Tuchimine, Y. , Senda, M., Akada, S. , Harada, T. and M. Niizeki (1997) Complex constitutive nature of Japanese upland rice, Oryza sativa L. Euphytica 98:197-203.
Chiba , T., T. Harada, S. Goto , R. Ishikawa and M. Niizeki (1996) Transcription of tRNA genes from a large-scale plastid DNA deletion clearly reveals the action of nuclear-encoded RNA polymerase in the plastid. J. Plant Physiol. 148:652 656.
Wang,T-B. , M. Niizeki, T. Harada, R. Ishikawa and K. Saito (1996) Variations of Nor chromosomes hidden behind RFLP were exposed by fluorescence in situ hybridization in maize-Triticum somatic hybrid cell lines. Bull. Fac. Agric. Hirosaki Univ. 59: 27-35.
Harada, T., T. Sunako., W. Sakuraba, S. Goto, M. Senda, S. Akada, R. Ishikawa and M. Niizeki (1997) Genomic nucleotide sequence of a ripening related 1-aminocyclopropane-1-carboxylate syntase gene (MdACS-1) in apple. Plant Physiol. 113:1465.
Nakajo, S., M. Niizeki, R. Ishikawa, T. Harada and K.Saito (1995) Organelle DNA analysis of somatic cell hybrids between gramineous and leguminus species. Bull. Fac. Agric. Hirosaki Univ. 58:22-33.
齋藤健一・新関 稔・原田竹雄・石川隆二・佐藤 耕・石山正行 (1994)リンゴの交雑育種に関する研究．第14報 Malus 属における自家結実性の遺伝変異と環境変異．弘大農報 57：9-24.
ISHIKAWA, R.:Genetical studies of isozyme in rice. (1994) Bull. Fac. Agr. Hirosaki Univ. 57: 105-180.
OGASAWARA, H., S. UEDA, T. HARADA, R. ISHIKAWA, M. NIIZEKI and K. SAITO (1994) Introduction of a herbicide resistant gene into an apple root-stock with Agrobacterium tumefaciens. Bull. Fac. Agric. Hirosaki Univ. 57：1-8.
NAKAJO, S., M. NIIZEKI, T. HARADA, R. ISHIKAWA and K. SAITO (1994) Somatic cell hybridization in rice (Oryza sativa L.) and birdsfoot trefoil (Lotus corniculatus L.). Breeding Science 44：79-81.
齋藤健一・新関 稔・原田竹雄・石川隆二 (1993)リンゴの交雑育種に関する基礎的研究．第13報 自家結実性品種育成母本としての Malus Hupehensis の特性について．弘大農報 56：1-13.
HARADA, T., K. MATSUKAWA, T. SATO, R. ISHIKAWA, M. NIIZEKI and K. SAITO (1993) DNA-RAPDs detect genetic variation and paternity in Malus. Euphytica 65: 87-91.
SAITO, K., M. NIIZEKI, T. HARADA and R. ISHIKAWA (1993) Fundamental studies on breeding of apples Malus hupehensis, as a mother stock for the breeding of self-fruitful varietiesXIII. Bull. Fac. Agr. Hirosaki Univ. 56: 1-13.
WANG, T.B., M. NIIZEKI, T. HARADA, R. ISHIKAWA, Y. Q. QIAN and K. SAITO (1993) Establishment of somatic hybrid cell lines between Zea mays L. (Maize) and Triticum sect. Trititrigia Mackey (trititrigia). Theor.Appl.Genet. 86：371-376.
HARADA, T., R. ISHIKAWA, M. NIIZEKI and K. SAITO (1992) Pollen derived rice calli that have deletions in plastid DNA do not require protein synthesis in plastids for growth. Mol. Gen. Genet. 233: 145-150.
ISHIKAWA, R., T. HARADA, M. NIIZEKI and K. SAITO (1992) Reconstruction of linkage map with isozyme, morphological and physiological markers in rice Chromosome 12. Japan. J. Breed. 42: 235-244.
ISHIKAWA, R., K. MAEDA, T. HARADA, M. NIIZEKI and K. SAITO (1992) Genotypic variation for 17 isozyme genes among Japanese upland varieties in rice. Japan. J. Breed. 42: 737-746.
KIHARA, M., KN, CAI, R. ISHIKAWA, T. HARADA, M. NIIZEKI and K. SAITO (1992) Asymmetric somatic hybrid calli between Leguminous species of Lotus corniculatus and Glycine max regenerated plants from the calli. Japan. J. Breed. 42: 55-64.
NIIZEKI, M., S. NAKAJO, R. ISHIKAWA, T. HARADA and K. SAITO (1992) Behavior of mitochondrial and chloroplast DNA in somatic hybrid calli between rice and alfalfa. Japan. J. Breed. 42: 803-809.
NIIZEKI, M., S. NAKAJO, R. ISHIKAWA, T. HARADA and K. SAITO (1992) Molecular state in somatic hybrids among gramineous and leguminous species. Proc. Of Asia-Pacific conference on Agricultural Biotechnology, Bejing, China, pp427-430.
ISHIKAWA, R., K. MAEDA, T. HARADA, M. NIIZEKI and K. SAITO (1991) Classification of Japanese rice varieties into Indica and japonica types by using isozyme genotypes. Japan. J. Breed. 41: 605-622.
ISHIKAWA, R., H. MORISHIMA, T. KINOSHITA, T. HARADA, M. NIIZEKI and K. SAITO (1991) Linkage analysis of nine isozyme genes on the conventional linkage map in rice. Japan. J. Breed. 41: 265-272.
NIIZEKI, M., R. ISHIKAWA and K. SAITO (1990) Variation in a single protoplast- and seed- derived population of Lotuscorniculatus L. Theor. Appl. Genet. 80: 732 736.
SATO, Y. I., R. ISHIKAWA and H. MORISHIMA (1990) Non-random association of genes and characters found in indicaxjaponica a hybrids of rice. Heredity 65: 75-79.
ISHIKAWA, R., H. MORISHIMA, K. MORI and T. KINOSHITA (1989) Chromosomal analysis of isozyme loci and the allelic expression at cellular level in rice – Genetical studies on rice plants. XCVII-. Journ. Fac. Agr. Hokkaido Univ. 64: 85-98.