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Acquired sexual preferences in medaka

Research Project

Project/Area Number 15H06652
Research Category

Grant-in-Aid for Research Activity Start-up

Allocation TypeSingle-year Grants
Research Field Experimental psychology
Research InstitutionJapan Women's University

Principal Investigator

Kamijo Makiko  日本女子大学, 理学部, 研究員 (80758722)

Project Period (FY) 2015-08-28 – 2017-03-31
Project Status Completed (Fiscal Year 2016)
Budget Amount *help
¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
Fiscal Year 2016: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2015: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Keywords性的嗜好性 / 学習 / メダカ / 配偶行動
Outline of Final Research Achievements

Mate-choice experiments of male Medaka were conducted between two skin-color variants , color interfere (ci) and Actb-SLα:GFP (soma), which are different in the skin color regulated by a single gene. These strains were reared with various tank mates from hatch until sexual maturation. Matured males were allowed to mate with novel two females of different strains for 30 minutes, and the number of courtship behaviors to each female was counted to assess his preference. Preference test with pair of two strains female was repeated for four successive days. When these strains had been reared separately, the males strongly preferred females of the same strain. However, if the strains had been reared in a mixed condition or each fish was reared individually, the males increased interests in females of the other strain. These results indicate that sexual preferences of males are established being affected by fish they grow up with.

Report

(3 results)
  • 2016 Annual Research Report   Final Research Report ( PDF )
  • 2015 Annual Research Report
  • Research Products

    (5 results)

All 2017 2016

All Journal Article (1 results) (of which Peer Reviewed: 1 results,  Open Access: 1 results,  Acknowledgement Compliant: 1 results) Presentation (4 results) (of which Int'l Joint Research: 3 results)

  • [Journal Article] Establishment and maintenance of sexual preferences that cause a reproductive isolation between medaka strains in close association.2017

    • Author(s)
      Mayuka Ikawa, Emi Ohya, Hiroka Shimada, Makiko Kamijo, Shoji Fukamachi.
    • Journal Title

      Biology Open

      Volume: 6 Issue: 2 Pages: 244-251

    • DOI

      10.1242/bio.022285

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Presentation] Acquired sexual preferences depending on skin colors of surrounding fish in medaka2016

    • Author(s)
      Makiko Kamijo, Mayuka Ikawa, Emi Ohya, Hiroka Shimada, Shoji Fukamachi.
    • Organizer
      75th Annual meeting of The Japanese Society for Animal Psychology
    • Place of Presentation
      北海道大学,札幌
    • Year and Date
      2016-11-23
    • Related Report
      2016 Annual Research Report
  • [Presentation] Effects of genetic and environmental factors on male sexual preferences in medaka2016

    • Author(s)
      Makiko Kamijo, Shoji Fukamachi.
    • Organizer
      The 31st International Congress of Psychology
    • Place of Presentation
      acifico Yokohama, Yokohama, Japan
    • Year and Date
      2016-07-24
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Effects of genetic and environmental factors on male sexual preferences in medaka2016

    • Author(s)
      Kamijo, M. & Fukamachi, S.
    • Organizer
      The 31st International Congress of Psychology
    • Place of Presentation
      Pacifico Yokohama, Yokohama, Japan.
    • Year and Date
      2016-07-24
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Effects of social association on sexual preference in small fresh-water fish, Oryzias latipes2016

    • Author(s)
      Makiko Kamijo, Mayuka Ikawa, Emi Ohya, Hiroka Shimada, Shoji Fukamachi.
    • Organizer
      18th Meeting of the International Society for Comparative Psychology
    • Place of Presentation
      University of Sydney, Australia
    • Year and Date
      2016-07-14
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research

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Published: 2015-08-26   Modified: 2018-03-22  

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