Akira Hikosaka

Last Updated :2025/01/07

Affiliations, Positions
Graduate School of Integrated Sciences for Life, Associate Professor
E-mail
akirahshiroshima-u.ac.jp
Self-introduction
I am studying the evolution of metazoans using Acoela.

Basic Information

Academic Degrees

  • Doctor of Science, Kyoto University
  • Master of Science, Kyoto University

Educational Activity

  • [Bachelor Degree Program] School of Integrated Arts and Sciences : Department of Integrated Arts and Sciences : Integrated Arts and Sciences
  • [Master's Program] Graduate School of Integrated Sciences for Life : Division of Integrated Sciences for Life : Program of Life and Environmental Sciences
  • [Doctoral Program] Graduate School of Integrated Sciences for Life : Division of Integrated Sciences for Life : Program of Life and Environmental Sciences

Research Fields

  • Biology;Basic biology;Evolutionary biology
  • Biology;Biological Science;Developmental biology
  • Biology;Basic biology;Genetics / Chromosome dynamics

Research Keywords

  • Zoology
  • Evolution
  • Acoela
  • Acoelomorpha
  • Development
  • Symbiosis
  • Molecular evolution
  • Genome evolution
  • Transposable element
  • Amphibian

Affiliated Academic Societies

  • The Zoological Society of Japan, 1990
  • Society of Evolutionary Studies, Japan, 2003

Educational Activity

Course in Charge

  1. 2024, Graduate Education (Master's Program) , Second Semester, Exercises in Life and Environmental Sciences B
  2. 2024, Graduate Education (Master's Program) , 1Term, Introduction to Integrated Arts and Sciences
  3. 2024, Graduate Education (Master's Program) , 3Term, Evolutional and environmental life science
  4. 2024, Graduate Education (Doctoral Program) , 4Term, Exercises in Integrated Life Sciences
  5. 2024, Graduate Education (Doctoral Program) , Academic Year, Research for Academic Degree Dissertation in Integrated Life Sciences
  6. 2024, Liberal Arts Education Program1, 4Term, From molecules to life
  7. 2024, Liberal Arts Education Program1, 3Term, From molecules to life
  8. 2024, Liberal Arts Education Program1, 2Term, Experimental Methods and Laboratory Work in Science A
  9. 2024, Liberal Arts Education Program1, 3Term, Experimental Methods and Laboratory Work in Biology I
  10. 2024, Liberal Arts Education Program1, 4Term, Experimental Methods and Laboratory Work in Biology II
  11. 2024, Undergraduate Education, 3Term, Seminar in English for Life Sciences
  12. 2024, Undergraduate Education, 2Term, Introduction to Life Sciences
  13. 2024, Undergraduate Education, 1Term, Fundamental Cell Biology
  14. 2024, Undergraduate Education, 2Term, Molecular Developmental Biology
  15. 2024, Undergraduate Education, 2Term, Laboratory Work in Life Sciences D
  16. 2024, Undergraduate Education, 2Term, Practical Methods in Life Sciences D
  17. 2024, Undergraduate Education, Intensive, Lecture and Laboratory courseIn Marine Biology
  18. 2024, Undergraduate Education, First Semester, Fundamental Laboratory Work in Biology
  19. 2024, Undergraduate Education, First Semester, Fundamental Methodology in Biology
  20. 2024, Undergraduate Education, 1Term, Fundamentals of Life Science
  21. 2024, Graduate Education (Master's Program) , Academic Year, Research for Academic Degree Dissertation in Life and Environmental Sciences
  22. 2024, Graduate Education (Master's Program) , First Semester, Exercises in Life and Environmental Sciences A

Research Activities

Academic Papers

  1. ★, Symbiotic algae of acoel species in the Seto Inland Sea and symbiont selectivity in the hosts., Zoological Science, 41(4), 202408
  2. ★, Geographical Distribution and Genetic Diversity of Praesagittifera naikaiensis (Acoelomorpha) in the Seto Inland Sea, Japan, ZOOLOGICAL SCIENCE, 37(4), 314-322, 202008
    Link to Paper Search Results by DOI
  3. A draft nuclear-genome assembly of the acoel flatworm Praesagittifera naikaiensis, GigaScience, 8, 1-8, 20190409
  4. ★, Multiple massive domestication and recent amplification of Kolobok superfamily transposons in the clawed frog Xenopus, ZOOLOGICAL LETTERS, 4, 20180616
    Link to Paper Search Results by DOI
  5. ★, Genome evolution in the allotetraploid frog Xenopus laevis, NATURE, 538(7625), 336-+, 20161020
    Link to Paper Search Results by DOI
  6. ★, Distribution of the T2-MITE family transposons in the Xenopus (Silurana) tropicalis genome, Cytogenetic and Genome Research, 145(3-4), 230-242, 20150603
    Link to Paper Search Results by DOI
  7. ★, Mechanisms of Maternal Inheritance of Dinoflagellate Symbionts in the Acoelomorph Worm Waminoa litus, ZOOLOGICAL SCIENCE, 29(9), 559-567, 20120901
  8. Recent transposition activity of Xenopus T2 family miniature inverted-repeat transposable elements (MITEs), Molecular Genetics and Genomics, 285(3), 219-224, 20110301
  9. ★, A systematic search and classification of T2 family miniature inverted-repeat transposable elements (MITEs) in Xenopus tropicalis suggests the existence of recently active MITE subfamilies., Molecular Genetics and Genomics, 283(1), 49-62, 20100101
  10. Artificial rearing and oviposition of Waminoa sp. (Acoela, Acoelomorpha):　Toward the development of a model system to study animal–algal symbiosis., Bulletin of the Graduate School of Integrated Arts and Sciences, Hiroshima University, I, 5, 39-45, 20101201
  11. Unique Form and Osmoregulatory Function of a Neurohypophysial Hormone in a Urochordate, Endocrinology, 149(10), 5254-5261, 20081001
  12. Identification and expression-profiling of Xenopus tropicalis miRNAs including plant miRNA-like RNAs at metamorphosis, FEBS LETTERS, 581(16), 3013-3018, 20070601
  13. PCR detection of excision suggests mobility of the medaka fish Toll transposable element in the frog Xenopus laevisi, GENETICS RESEARCH, 89(4), 201-206, 20070801
  14. ★, Evolution of the Xenopus piggyBac transposon family TxpB: Domesticated and untamed strategies of transposon subfamilies, MOLECULAR BIOLOGY AND EVOLUTION, 24(12), 2648-2656, 20071201
  15. Evolution of the Xenopus T2-family transposons, ZOOLOGICAL SCIENCE, 23(12), 1158-1158, 2006
  16. Evolution of a Xenopus transposon family, XpB, ZOOLOGICAL SCIENCE, 22(12), 1435-1435, 2005
  17. Expression pattern of miRNAs in Xenopus tropicalis metamorphosis, ZOOLOGICAL SCIENCE, 22(12), 1506-1506, 2005
  18. Lineage-specific tandem repeats riding on a transposable element of MITE in Xenopus evolution: A new mechanism for creating simple sequence repeats., Journal of Molecular Evolution, 59(6), 738-746, 20040401
  19. Expression of let-7 RNA in Xenopus laevis metamorphosis, ZOOLOGICAL SCIENCE, 21(12), 1340-1340, 2004
  20. Tissue-specific regulation of type III iodothyronine 5-deiodinase gene expression mediates the effects of prolactin and growth hormone in Xenopus metamorphosis, Development Growth ＆ Differentiation, 44(4), 327-335, 20020401
  21. Extensive Amplification and Transposition of a Novel Repetitive Element, Xstir, Together with Its Terminal Inverted Repeat in the Evolution of Xenopus, Journal of Molecular Evolution, 51(6), 554-564, 20000401
  22. Role of type III iodothyronine 5-deiodinase gene expression in temporal regulation of Xenopus metamorphosis, Development Growth ＆ Differentiation, 41(3), 365-373, 19990401
  23. Coexpression and promoter function in two muscle action gene complexes of different structural organization in the Ascidian Halocynthia roretzi., Developmental Biology, 169(2), 461-472, 19950401
  24. ★, Short Upstream Sequence Associated with the Muscle-Specific Expression of an Actin Gene in Ascidian Embryos., Developmental Biology, 166(2), 763-769, 19940401
  25. Introduction and Expression of Recombinant Genes in Ascidian Embryos., Development Growth ＆ Differentiation, 34(6), 627-634, 19920401

Invited Lecture, Oral Presentation, Poster Presentation

  1. Molecular domestication of transposons in Xenopus., Akira Hikosaka, Seigo Konishi, Sarina Uno, Akira Kawahara, Frontiers in Amphibian Biology: Endangered Species Conservation and Genome Editing, 2014/03, Without Invitation, English
  2. Vertebrate PIF transposons and related MITEs, Akira Hikosaka, "JUMPY" Project Meeting, 2003/05/08, With Invitation, English, Cambridge University, UK

Awards

  1. 2013/09, Zoological Science Award, 日本動物学会, Mechanisms of maternal inheritance of dinoflagellate symbionts in the Acoelomorph worm Waminoa litus.

External Funds

Acceptance Results of Competitive Funds

  1. 2021, 2023

Social Activities

History as Peer Reviews of Academic Papers

  1. 2021, Zoological Science, Others, 2