入学希望の方一般・社会人の方研究者の方同窓生の方在学生の方教職員の方 日本語 (Japanese) Graduate School of Life Sciences, Tohoku University Access sitemap Link Tohoku University HOMEAbout UsAbout UsMessage from the DeanOrganizationMovieResearchLaboratories Department of Integrative Life Sciences Department of Ecological Developmental Adaptability Life Sciences Department of Molecular and Chemical Life SciencesResearchAwardEducationDegree ProgramsCourseSyllabusScheduleStudent LifeAdmissionAdmission InformationApplicationExamination Schedule and Application GuidelinesInformation Session(2024)Admission and Tuition FeesAdmission PolicyVoices from Graduates and Current StudentsAdmissions Q&AInquiries about Entrance ExaminationsFinancial SupportFor StudentsGraduate School&＃039;s Message Board for Students Information about Completion and Advancement to the Doctoral Course ProceduresCertificatesAbout Issuance of Various CertificatesNotice Regarding the Suspension of Operation of the Automatic Certificate Issuing MachinesLeave of absence/withdrawal from universityCampus Life, Various consultation servicesContactAccessLinkSitemapInformationAdmissionResearchAwardSeminarJobNewsAnnouncementOther MENU HOMEAbout UsAbout UsMessage from the DeanOrganizationMovieResearchLaboratoriesResearchAwardEducationDegree ProgramsCourseSyllabusScheduleStudent LifeAdmissionAdmission InformationApplicationExamination Schedule and Application GuidelinesInformation Session(2024)Admission and Tuition FeesAdmission PolicyVoices from Graduates and Current StudentsAdmissions Q&AInquiries about Entrance ExaminationsFinancial SupportFor StudentsGraduate School&＃039;s Message Board for Students Information about Completion and Advancement to the Doctoral Course ProceduresCertificatesLeave of absence/withdrawal from universityCampus Life, Various consultation servicesContactAccessLinkSitemapInformationAdmissionResearchAwardSeminarJobNewsAnnouncementOther 日本語 (Japanese) CLOSE Graduate School of Life Sciences, Tohoku University. Field Ecological Developmental Adaptability Life Sciences :Biodiversity Dynamics Research HOME Research Researcher JAPANESE Associate Professor MINOKAWA Takuya Campus Asamushi campus Laboratory Marine Biodiversity Tel +81-17-752-3394 E-mail takuya.minokawa.c3＠tohoku.ac.jp Website http://researchmap.jp/takuyaminokawa/ https://sites.google.com/site/minokawalab/ Google scholar https://scholar.google.co.jp/citations?hl=ja&user=udifLuIAAAAJ&view_op=list I snorkeled for the first time in my life as part of a marine laboratory course when I was an undergrad. I will never forget the bountiful variety and striking beauty of the marine organisms I saw off Aomori’s coast. Since then, I have been captivated by sea life and have devoted my research to marine invertebrates. Career 1992 Graduated from the Department of Biology, Faculty of Science, Hirosaki University 1997 Ph.D., The University of Tokyo 1997-2000 Research Associate, Department of Biotechnology, Faculty of Life Science, Tokyo Institute of Technology 2000-2001 Visiting Research Associate, Graduate School of Frontier Sciences, The University of Tokyo 2001-2005 Postdoctoral research Associate, California Institute of Technology 2005 to Present Associate Professor, Research Center for Marine Biology, Graduate School of Life Sciences, Tohoku University Selected Publications Yamazaki A., Kidachi Y., Yamaguchi M., and Minokawa T. (2014) Larval mesenchyme cell specification in the primitive echinoid occurs independently of the double-negative gate Development 141:2669-2679 Yamazaki, A., Y. Kidachi and T. Minokawa (2012) “Micromere” formation and expression of endomesoderm regulatory genes during embryogenesis of the primitive echinoid Prionocidaris baculosa Development, Growth and Differentiation 54: 566-578 Minemura K., M. Yamaguchi and T. Minokawa (2009) Evolutionary modification of T-brain (tbr) expression patterns in sand dollar Gene Expression Patterns. 9 468-474. Iijima, M., Y. Ishizuka, Y. Nakajima, S. Amemiya, and T. Minokawa (2009) Evolutionary modification of specification for the endomesoderm in the direct developing echinoid Peronella japonica: loss of the endomesoderm-inducing signal originating from micromeres Development, Genes and Evolution. 219:235-247. Nakata, H. and T. Minokawa (2009) Expression patterns of wnt8 orthologs in two sand dollar species with different developmental modes Gene Expression Patterns. 9 152-157. Activities in Academic Societies The Zoological Society of Japan, Japanese Society of Developmental Biologists Teaching Marine Biology, Evolutionary Developmental Biology Recent Activities Photo 1: Cidaroida 16-cell stage embryo. The arrows point to the smaller blastomeres formed in the vegetal pole, and the arrowhead indicates the animal pole. I am interested in the evolution and diversity of the developmental mechanism. For the past several years, our group has conducted research focused on the differences between primitive and derivative-type sea urchins, in particular the evolution of micromere formation and functions. Derivative-type sea urchins form four micromeres of the same size in the vegetal pole at the 16-cell stage. On the other hand, little was known about the micromere formation of primitive sea urchins (Cidaroida). We studied Cidaroida embryonic development in detail and found that in this organism, the four same-size micromeres do not form (Photo 1), and the endomesoderm specification mechanism occurring at vegetal hemisphere is vastly different from that of derivative-type sea urchins. Using comparative methodologies, we have been studying the evolutionary changes of the sea urchin developmental mechanism. (Photo 1) Message to Students Photo 2: Various sea urchins living in the vicinity of Asamushi: Glyptocidaris crenularis (top left), Strongylocentrotus nudus (top right), Hemicentrotus pulcherrimus (bottom left), Scaphechinus mirabilis (middle bottom), and Strongylocentrotus intermedius (bottom right). There are variations in the developmental mechanisms of different kinds of sea urchins. These differences are the result of over 200 million years of diversification and evolution. The sea urchins are therefore favorable research subjects in evolutionary development biology. We are conducting research on the evolution of the developmental mechanism using various sea urchins living in the vicinity of Asamushi (Photo 2). ResearchLaboratories Department of Integrative Life Sciences Department of Ecological Developmental Adaptability Life Sciences Department of Molecular and Chemical Life SciencesResearchAward GO TOP Graduate School of Life SciencesTohoku University 2-1-1 Katahira, Aoba-Ku, Sendai 980-8577 Academic Affairs Section Tel : +81-22-217-5706 / Fax: +81-22-217-5704   General Affairs Section Tel : +81-22-217-5702 / Fax: +81-22-217-5704   Contact ・Privacy Policy HOMEAbout UsAbout UsMessage from the DeanOrganizationMovieResearchLaboratories Department of Integrative Life Sciences Department of Ecological Developmental Adaptability Life Sciences Department of Molecular and Chemical Life SciencesResearchAwardEducationDegree ProgramsCourseSyllabusScheduleStudent LifeAdmissionAdmission InformationApplicationExamination Schedule and Application GuidelinesInformation Session(2024)Admission and Tuition FeesAdmission PolicyVoices from Graduates and Current StudentsAdmissions Q&AInquiries about Entrance ExaminationsFinancial SupportFor StudentsGraduate School&＃039;s Message Board for Students Information about Completion and Advancement to the Doctoral Course ProceduresCertificatesAbout Issuance of Various CertificatesNotice Regarding the Suspension of Operation of the Automatic Certificate Issuing MachinesLeave of absence/withdrawal from universityCampus Life, Various consultation servicesContactAccessLinkSitemapInformationAdmissionResearchAwardSeminarJobNewsAnnouncementOther © 2004-2023 Graduate School of Life Sciences, Tohoku University no cache