TAKESHI IGAWA

Last Updated :2021/07/01

Affiliations, Positions
Institute for Amphibian Biology, Assistant Professor
E-mail
tigawahiroshima-u.ac.jp
Self-introduction
My interest is identifying evolutionary dynamics in genes and genomes in amphibian species. I started my career from phylogenetics and shifted to population genetics and molecular ecology.

Basic Information

Major Professional Backgrounds

  • 2008/04/01, 2009/03/31, The Graduate University for Advanced Studies
  • 2009/04/01, 2014/03/31, Hiroshima University, Graduate School of Science, Institute for Amphibian Biology, Assistant Professor (Special Appointment)
  • 2014/04/01, 2017/04/30, Hiroshima University, Graduate School for International Development and Cooperation, Assistant Professor
  • 2017/05/01, Amphibian Research Center, Hiroshima University, Assistant Professor

Educational Backgrounds

  • Hiroshima University, Japan, 2005/04, 2008/03
  • Hiroshima University, Japan, 2003/04, 2005/03
  • Shimane University, Japan, 1999/04, 2003/03

Academic Degrees

  • Doctor of Science, Hiroshima University
  • Master of Science, Hiroshima University

Research Fields

  • Biology;Basic biology;Evolutionary biology
  • Biology;Basic biology;Genetics / Chromosome dynamics
  • Biological Sciences;Conservation of biological resources;Conservation of biological resources

Research Keywords

  • Mitochondrial genome, Microsatellite, Genomic Evolution, Molecular Evolution, Evolutionary Biology, Phylogeography, Population Genetics, Landscape Genetics, Conservation Genetics

Affiliated Academic Societies

  • The Herpetological Society of Japan, 2003/04
  • Zoological Society of Japan, 2003/04
  • The Genetics Society of Japan, 2006/04
  • Society for Evolutionary Studies, Japan, 2008/04
  • The Okinawa Herpetological Society, 2011/04
  • NGS Field, 2012/04

Educational Activity

Course in Charge

  1. 2021, Liberal Arts Education Program1, 1Term, Environmental management in higash-hiroshima campus at Hiroshima University
  2. 2021, Liberal Arts Education Program1, 3Term, The life science of amphibians
  3. 2021, Liberal Arts Education Program1, 2Term, Introductory Seminar for First-Year Students
  4. 2021, Undergraduate Education, 2Term, Advanced Biology
  5. 2021, Undergraduate Education, 3Term, Regulation of Animal Morphology
  6. 2021, Undergraduate Education, Second Semester, Special Study for Graduation
  7. 2021, Undergraduate Education, Second Semester, Seminar for Amphibian Biology
  8. 2021, Undergraduate Education, First Semester, Practice for Fundamental Biology I
  9. 2021, Undergraduate Education, Second Semester, Practice for Fundamental Biology II
  10. 2021, Undergraduate Education, Second Semester, Practice for Fundamental Biology IV
  11. 2021, Undergraduate Education, 3Term, Laboratory Work in Biology A
  12. 2021, Graduate Education (Master's Program) , First Semester, Seminar for Biological Science (Lecture)
  13. 2021, Graduate Education (Master's Program) , Second Semester, Seminar for Biological Science (Lecture)
  14. 2021, Graduate Education (Master's Program) , 1Term, Special Lectures in Integrated Sciences for Life
  15. 2021, Graduate Education (Master's Program) , 1Term, Exercises in Basic Biology A
  16. 2021, Graduate Education (Master's Program) , 2Term, Exercises in Basic Biology A
  17. 2021, Graduate Education (Master's Program) , 2Term, Seminar for Advanced Research in Basic Biology A
  18. 2021, Graduate Education (Master's Program) , 3Term, Seminar for Advanced Research in Basic Biology B
  19. 2021, Graduate Education (Master's Program) , 3Term, Exercises in Basic Biology B
  20. 2021, Graduate Education (Master's Program) , 4Term, Exercises in Basic Biology B
  21. 2021, Graduate Education (Master's Program) , 1Term, Exercises in Biomedical Science A
  22. 2021, Graduate Education (Master's Program) , 2Term, Exercises in Biomedical Science A
  23. 2021, Graduate Education (Master's Program) , Academic Year, Research for Academic Degree Dissertation in Basic Biology
  24. 2021, Graduate Education (Master's Program) , 2Term, Seminar for Advanced Research in Basic Biology C
  25. 2021, Graduate Education (Master's Program) , 3Term, Seminar for Advanced Research in Basic Biology D
  26. 2021, Graduate Education (Doctoral Program) , 2Term, Seminar for Advanced Research in Basic Biology E
  27. 2021, Graduate Education (Doctoral Program) , 3Term, Seminar for Advanced Research in Basic Biology F
  28. 2021, Graduate Education (Master's Program) , 3Term, Biomedical Science Seminar A
  29. 2021, Graduate Education (Master's Program) , 3Term, Biomedical Science Seminar B
  30. 2021, Graduate Education (Master's Program) , 1Term, Advanced Technologies for Life Science
  31. 2021, Graduate Education (Master's Program) , 3Term, Exercises in Biomedical Science B
  32. 2021, Graduate Education (Master's Program) , 4Term, Exercises in Biomedical Science B
  33. 2021, Graduate Education (Master's Program) , Academic Year, Research for Academic Degree Dissertation in Biomedial Science
  34. 2021, Graduate Education (Doctoral Program) , 3Term, Biomedical Science Seminar C
  35. 2021, Graduate Education (Doctoral Program) , Academic Year, Research for Academic Degree Dissertation in Integrated Life Sciences
  36. 2021, Graduate Education (Doctoral Program) , 3Term, Biomedical Science Seminar D
  37. 2021, Graduate Education (Doctoral Program) , 3Term, Biomedical Science Seminar E

Research Activities

Academic Papers

  1. Spontaneous neoplasia in the western clawed frog Xenopus tropicalis, microPublication Biology, 20200831
  2. Heterogeneity of synonymous substitution rates in the Xenopus frog genome, PLoS One, 15(8), 20200807
  3. Complete mitochondrial genome of Hynobius dunni (Amphibia, Caudata, Hynobiidae) and its phylogenetic position, Mitochondrial DNA Part B-Resources, 5(3), 2241-2242, 20200702
  4. Comparison of the detection of 3 endangered frog species by eDNA and acoustic surveys across 3 seasons, Freshwater Science, 39(1), 18-27, 20200301
  5. ★, Detecting inter- and intra-island genetic diversity: population structure of the endangered crocodile newt, Echinotriton andersoni, in the Ryukyus, Conservation Genetics, 21(1), 13-26, 202002
  6. Expression Changes of MHC and Other Immune Genes in Frog Skin during Ontogeny., Animals, 10(1), 20200106
  7. Hot spring frogs (Buergeria japonica) prefer cooler water to hot water, Ecology and Evolution, 10(17), 9466-9473, 2020
  8. An application of PCR-RFLP species identification assay for environmental DNA detection, PeerJ, 7, 20191003
  9. Quantitative trait loci mapping for the shear force value in breast muscle of F-2 chickens, Poultry Science, 98(3), 1096-1101, 201903
  10. Mapping of Quantitative Trait Loci for Growth and Carcass-Related Traits in Chickens Using a Restriction-Site Associated DNA Sequencing Method., The Journal of Poultry Science, 56, 166-176, 201907
  11. Transgenic, Inbred and Mutant Animals, Training Opportunities, and Web-Based Support., Frontiers in Physiology, 10, 387, 201904
  12. Selective constraint acting on TLR2 and TLR4 genes of Japanese Rana frogs, PEERJ, 6, 20180525
  13. Transcriptome analyses of immune tissues from three Japanese frogs (genus Rana) reveals their utility in characterizing major histocompatibility complex class II, BMC Genomics, 18, 20171228
  14. ★, Fine-scale demographic processes resulting from multiple overseas colonization events of the Japanese stream tree frog, Buergeria japonica., Journal of Biogeography, 44, 1586-1597, 201707
  15. Evolutionary history of the extant amphioxus lineage with shallow-branching diversification, Scientific Reports, 7, 1157, 201704
  16. Development and Characterization of 23 Microsatellite Markers for the Montane Brown Frog (Rana ornativentris), Current Herpetology, 36, 63-68, 201702
  17. Characterisation of major histocompatibility complex class I genes in Japanese Ranidae frogs, Immunogenetics, 68(10), 797-806, 201611
  18. Inter- and intra-specific genetic divergence of Asian tiger frogs (genus Hoplobatrachus), with special reference to the population structure of H. tigerinus in Bangladesh, Genes & Genetic Systems, 91, 217-228, 201608
  19. Salinity and thermal tolerance of Japanese stream tree frog (Buergeria japonica) tadpoles from island populations., Herpetological Journal, 26, 207-211, 20160701
  20. Population structure and evolution after speciation of the Hokkaido salamander (Hynobius retardatus), PLoS One, 11(6), e0156815, 20160603
  21. The first see-through frog created by breeding: description, inheritance patterns, and dermal chromatophore structure., Scientific Reports, 6, 24431, 20160415
  22. Living in a Japanese onsen: field observations and physiological measurements of hot spring amphibian tadpoles, Buergeria japonica, AMPHIBIA-REPTILIA, 37(3), 311-314, 2016
  23. Robust molecular phylogeny and palaeodistribution modelling resolve a complex evolutionary history: glacial cycling drove recurrent mtDNA introgression among Pelophylax frogs in East Asia, JOURNAL OF BIOGEOGRAPHY, 42(11), 2159-2171, 201511
  24. Genetic population structure and demographic history of an endangered frog, Babina holsti, Conservation Genetics, 16(4), 987-1000, 201508
  25. Development and characterization of 12 microsatellite markers for the Hokkaido salamander (Hynobius retardatus), Current Herpetology, 34, 177-181, 201508
  26. ★, Inbreeding ratio and genetic relationships among strains of the Western clawed frog, Xenopus tropicalis, PLoS One, 10(7), e0133963, 201507
  27. Radiocesium accumulation in the anuran frog, Rana tagoi tagoi, in forest ecosystems after the Fukushima Nuclear Power Plant accident, ENVIRONMENTAL POLLUTION, 199, 89-94, 201504
  28. Development and Validation of PCR-RFLP Assay to Identify Three Japanese Brown Frogs of The True Frog Genus Rana, Current Hepetology, 34, 89-94, 201502
  29. Microsatellite Marker Development by Multiplex Ion Torrent PGM Sequencing: a Case Study of the Endangered Odorrana narina Complex of Frogs, JOURNAL OF HEREDITY, 106(1), 131-137, 2015
  30. Extraordinary Diversity in the Origins of Sex Chromosomes in Anurans Inferred from Comparative Gene Mapping, CYTOGENETIC AND GENOME RESEARCH, 145(3-4), 218-229, 2015
  31. Genetic Divergence and Geographic Distribution of Frogs in Genus Fejervarya from Indonesia Inferred from Mitochondrial 16S rRNA Gene Analysis, Treubia, 41, 1-16, 201412
  32. Development and characterization of 14 microsatellite markers for Buergeria japonica (Amphibia, Anura, Rhacophoridae), GENES & GENETIC SYSTEMS, 89(1), 35-39, 201402
  33. Genetic divergences of South and Southeast Asian frogs: a case study of several taxa based on 16S ribosomal RNA gene data with notes on the generic name Fejervarya, TURKISH JOURNAL OF ZOOLOGY, 38(4), 389-411, 2014
  34. Development and characterization of 27 new microsatellite markers for the Indian bullfrog Hoplobatrachus tigerinus and its congeneric species, GENES & GENETIC SYSTEMS, 89(3), 137-141, 2014
  35. Development and characterization of new microsatellite loci in the Otton frog (Babina subaspera) and cross-amplification in a congeneric species, Holst's frog (B-holsti), CONSERVATION GENETICS RESOURCES, 5(4), 1071-1073, 201312
  36. Stable Aquaculture of the Japanese Lancelet Branchiostoma japonicum for 7 Years, JOURNAL OF EXPERIMENTAL ZOOLOGY PART B-MOLECULAR AND DEVELOPMENTAL EVOLUTION, 320(8), 538-547, 201312
  37. An Attempt at Captive Breeding of the Endangered Newt Echinotriton andersoni, from the Central Ryukyus in Japan, Animals, 3, 680-692, 201307
  38. ★, Population structure and landscape genetics of two endangered frog species of genus Odorrana: different scenarios on two islands, HEREDITY, 110(1), 46-56, 201301
  39. Isolation and characterization of ten microsatellite loci of endangered Anderson's crocodile newt, Echinotriton andersoni, CONSERVATION GENETICS RESOURCES, 4(3), 595-598, 201209
  40. Cryptic Anuran Biodiversity in Bangladesh Revealed by Mitochondrial 16S rRNA Gene Sequences, ZOOLOGICAL SCIENCE, 29(3), 162-172, 201203
  41. Genomic structure and evolution of multigene families: "flowers" on the human genome, International journal of evolutionary biology, 2012(917678), 1-11, 201201
  42. Artificial Production and Natural Breeding of the Endangered Frog Species Odorrana ishikawae, with Special Reference to Fauna Conservation in the Laboratory, ZOOLOGICAL SCIENCE, 28(11), 834-839, 201111
  43. Isolation and characterization of twelve microsatellite loci of endangered Ishikawa's frog (Odorrana ishikawae), CONSERVATION GENETICS RESOURCES, 3(3), 421-424, 201107
  44. ★, Divergence, demography and gene loss along the human lineage., Philosophical transactions of the Royal Society of London. Series B, 365(1552), 2451-2457, 201008
  45. Genetic Divergence and Evolutionary Relationship in Fejervarya cancrivora from Indonesia and Other Asian Countries Inferred from Allozyme and MtDNA Sequence Analyses, ZOOLOGICAL SCIENCE, 27(3), 222-233, 201003
  46. Genetic divergence and evolutionary relationships in six species of genera Hoplobatrachus and Euphlyctis (Amphibia : Anura) from Bangladesh and other Asian countries revealed by mitochondrial gene sequences, MOLECULAR PHYLOGENETICS AND EVOLUTION, 48(2), 515-527, 200808
  47. Complete mitochondrial genomes of three neobatrachian anurans: A case study of divergence time estimation using different data and calibration settings, GENE, 407(1-2), 116-129, 20080115
  48. Evolutionary relationships and reproductive isolating mechanisms in the rice frog (Fejervarya limnocharis) species complex from Sri Lanka, Thailand, Taiwan and Japan, inferred from mtDNA gene sequences, allozymes, and crossing experiments, ZOOLOGICAL SCIENCE, 24(6), 547-562, 200706
  49. Molecular phylogenetic relationship of toads distributed in the Far East and Europe inferred from the nucleotide sequences of mitochondrial DNA genes, MOLECULAR PHYLOGENETICS AND EVOLUTION, 38(1), 250-260, 200601

Invited Lecture, Oral Presentation, Poster Presentation

  1. Genetic divergence and phylogenetic relationships in the frogs from south to east Asia, Hasan, M, MM. Islam, MR. Khan, MS. Alam, TH. Djong, T. Igawa, N. Kurniawan, M. Kuramoto, M. Sumida, 2010/05/16, Without Invitation, Japanese
  2. Species diversity and phylogenetic relationships among frogs from Bangladesh revealed by nucleotide sequences of mitochondrial 16S rRNA gene, Hasan, M, MM. Islam, MR. Khan, MS. Alam, T. Igawa, M. Kuramoto, M. Sumida, 2010/09/21, Without Invitation, Japanese

External Funds

Acceptance Results of Competitive Funds

  1. KAKENHI, 2014, 2016
  2. 光る透明ガエルの作出:非モデル両生類への遺伝子導入法の確立とNGSによる発現解析, 2013, 2015
  3. KAKENHI, 2012, 2015
  4. KAKENHI, 2011, 2013
  5. Sasakawa Scientific Research Grant Award, Molecular Evolutionary Study on Sex-linked gene GOT-1 in Japanese Bell Ring Frog, Buergeria buergeri, 2011, 2012
  6. KAKENHI(Grant-in-Aid for Scientific Research (C)), 2018, 2020

Social Activities

Organizing Academic Conferences, etc.

  1. Frontiers in Amphibian Biology: Endangered Species Conservation and Genome Editing, general affairs, 2014/, 2014/

History as Peer Reviews of Academic Papers

  1. 2009, Zoological Science, Others, Reviewer, 1
  2. 2014, Ecological Research, Others, Reviewer, 1
  3. 2014, Plos One, Others, Reviewer, 1
  4. 2014, Molecular Phylogenetics and Evolution, Others, Reviewer, 1
  5. 2015, Frontiers in Zoology, Others, Reviewer, 1
  6. 2015, Marine Genomics, Others, Reviewer, 1
  7. 2015, PeerJ, Others, Reviewer, 1
  8. 2015, Plos One, Others, Reviewer, 1
  9. 2015, Zoological Science, Others, Reviewer, 1
  10. 2016, PeerJ, Others, Reviewer, 1
  11. 2016, Ethology Ecology and Evolution, Others, Reviewer, 1
  12. 2016, Genes & Genetic Systems, Others, Reviewer, 1
  13. 2017, Current Herpetology, Others, Reviewer
  14. 2017, Zoological Science, Others, Reviewer, 1
  15. 2017, Biological Journal of the Linnean Society, Others, Reviewer, 1
  16. 2017, Asian Herpetological Research, Others, Reviewer, 1
  17. 2018, Animal Biology, Others, Reviewer, 1
  18. 2018, Zoological Science, Others, Reviewer, 6
  19. 2018, Journal of Genetics, Others, Reviewer, 1
  20. 2018, Scientific Reports, Others, Reviewer, 2
  21. 2018, Molecular Biology Reports, Others, Reviewer, 2
  22. 2018, Herpetological Conservation and Biology, Others, Reviewer, 1