Keiichi Okazaki

Keiichi Okazaki publication distribution in Plant Science and Agronomy in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Plant Science and Agronomy in 2026. The highlighted bar marks where Keiichi Okazaki sits on this spectrum.

Keiichi Okazaki D-index placement in Plant Science and Agronomy in 2026

The chart shows the D-index (discipline H-index) distribution of Plant Science and Agronomy scientists ranked by Research.com in 2026. The highlighted bar marks where Keiichi Okazaki sits on this spectrum.

Best Publications

• Mapping and characterization of FLC homologs and QTL analysis of flowering time in Brassica oleracea

  K. Okazaki;K. Sakamoto;R. Kikuchi;A. Saito

  242
  Citations

• Sequences of S -glycoproteins, products of the Brassica campestris self-incompatibility locus

  Seiji Takayama;Akira Isogai;Chise Tsukamoto;Yukari Ueda

  192
  Citations

• A molecular phylogeny of Lilium in the internal transcribed spacer region of nuclear ribosomal DNA.

  Tomotaro Nishikawa;Keiichi Okazaki;Tae Uchino;Katsuro Arakawa

  146
  Citations

• Identification of QTLs that control clubroot resistance in Brassica oleracea and comparative analysis of clubroot resistance genes between B. rapa and B. oleracea

  T. Nagaoka;M. A. U. Doullah;S. Matsumoto;S. Kawasaki

  115
  Citations

• Phylogenetic Analysis of Section Sinomartagon in Genus Lilium Using Sequences of the Internal Transcribed Spacer Region in Nuclear Ribosomal DNA

  Tomotaro Nishikawa;Keiichi Okazaki;Katsuro Arakawa;Tsukasa Nagamine

  96
  Citations

• Characterization of Brassica S-haplotypes lacking S-locus glycoprotein.

  Tohru Suzuki;Makoto Kusaba;Masanori Matsushita;Keiichi Okazaki

  84
  Citations

• Induction of 2n pollen in tulips by arresting the meiotic process with nitrous oxide gas

  Keiichi Okazaki;Kaori Kurimoto;Ichirou Miyajima;Akira Enami

  78
  Citations

• S-Locus-Specific Glycoproteins Associated with Self-Incompatibility in Brassica campestris

  Akira Isogai;Seiji Takayama;Chise Tsukamoto;Yukari Ueda

  68
  Citations

• Identification of candidate genes for fusarium yellows resistance in Chinese cabbage by differential expression analysis

  Motoki Shimizu;Ryo Fujimoto;Hua Ying;Zi-jing Pu

  66
  Citations

• Characterization of S tester lines in Brassica oleracea: Polymorphism of restriction fragment length of SLG homologues and isoelectric points of S-locus glycoproteins

  K. Okazaki;M. Kusaba;D. J. Ockendon;T. Nishio

  66
  Citations

• Breeding of lilies and tulips-Interspecific hybridization and genetic background.

  Agnieszka Marasek-Ciolakowska;Tomotaro Nishikawa;Daniel J. Shea;Keiichi Okazaki

  64
  Citations

• The origin of Darwin hybrid tulips analyzed by flow cytometry, karyotype analyses and genomic in situ hybridization

  Agnieszka Marasek;Hitoshi Mizuochi;Keiichi Okazaki

  64
  Citations

• Production of 2n pollen of Asiatic hybrid lilies by nitrous oxide treatment

  Masako Akutsu;Satomi Kitamura;Ryo Toda;Ichiro Miyajima

  63
  Citations

• Genome Triplication Leads to Transcriptional Divergence of FLOWERING LOCUS C Genes During Vernalization in the Genus Brassica.

  Ayasha Akter;Etsuko Itabashi;Tomohiro Kakizaki;Keiichi Okazaki

  56
  Citations

• Sequence and structural diversity of the S locus genes from different lines with the same self-recognition specificities in Brassica oleracea.

  Makoto Kusaba;Masanori Matsushita;Keiichi Okazaki;Yoko Satta

  56
  Citations

• Interspecific hybrids between Lilium nobilissimum and L. regale produced via ovules-with-placental-tissue culture

  Yumi Obata;Yoshiji Niimi;Masaru Nakano;Keiichi Okazaki

  54
  Citations

• Molecular and cellular characteristics of hybrid vigour in a commercial hybrid of Chinese cabbage

  Natsumi Saeki;Takahiro Kawanabe;Hua Ying;Motoki Shimizu

  53
  Citations

• Genetic mapping of a fusarium wilt resistance gene in Brassica oleracea

  Zi-jing Pu;Zi-jing Pu;Motoki Shimizu;Yan-ju Zhang;Yan-ju Zhang;Tomohiko Nagaoka

  50
  Citations

• Long noncoding RNAs in Brassica rapa L. following vernalization.

  Daniel J. Shea;Namiko Nishida;Satoko Takada;Etsuko Itabashi

  50
  Citations

• Genetic distance of inbred lines of Chinese cabbage and its relationship to heterosis

  Kazutaka Kawamura;Takahiro Kawanabe;Motoki Shimizu;Atsushi J. Nagano;Atsushi J. Nagano;Atsushi J. Nagano

  44
  Citations

• Map-based cloning of a candidate gene conferring Fusarium yellows resistance in Brassica oleracea

  Motoki Shimizu;Zi Jing Pu;Takahiro Kawanabe;Hiroyasu Kitashiba

  44
  Citations

• Mechanism of action of nitrous oxide gas applied as a polyploidizing agent during meiosis in lilies

  Satomi Kitamura;Masako Akutsu;Keiichi Okazaki

  39
  Citations

• Development of an effective screening method for partial resistance to Alternaria brassicicola (dark leaf spot) in Brassica rapa

  M. A. U. Doullah;M. B. Meah;K. Okazaki

  38
  Citations

• Changes in the Proteome of Xylem Sap in Brassica oleracea in Response to Fusarium oxysporum Stress

  Zijing Pu;Yoko Ino;Yayoi Kimura;Asumi Tago

  35
  Citations

• Production of high yield short duration Brassica napus by interspecific hybridization between B. oleracea and B. rapa

  Md. Masud Karim;Md. Masud Karim;Asfakun Siddika;Nazmoon Naher Tonu;Nazmoon Naher Tonu;Delwar M. Hossain

  34
  Citations

• Molecular cloning of Tulipa fosteriana rDNA and subsequent FISH analysis yields cytogenetic organization of 5S rDNA and 45S rDNA in T. gesneriana and T. fosteriana

  Hitoshi Mizuochi;Agnieszka Marasek;Keiichi Okazaki

  34
  Citations

• Interspecific hybrids between Lilium 'Oriental' hybrid and L. 'Asiatic' hybrid produced by embryo culture with revised media

  Keiichi Okazaki;Yoshito Asano;Katsuji Oosawa

  29
  Citations