A novel automated questionnaire-based pedigree chart creation software


  • f-tree is a software application that automatically creates a medical pedigree chart for a family by simply using the family's information, which is provided in the questionnaires.
  • No specialized knowledge of clinical genetics is required to use f-tree.
  • f-tree is fully compliant with international recommendations for standardized human pedigree nomenclature.
  • f-tree is the foremost tool, at present, capable of creating pedigree charts for genetic counseling.
  • The application of f-tree is not limited to only heredity clinics, but ranges from secondary education to genome cohort studies that handle large volumes of data.

    Adobe AIR must be installed to run f-tree

    Click the icon below to download from the Adobe website.

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    Users are requested to accept the f-tree terms of use when the software is to be used for conference presentations, paper writing, or commercial purposes.

    I agree to the following regarding the use of the family tree preparation software (f-tree) (hereinafter referred to as “the Software”) that is provided by Iwate Tohoku Medical Megabank Organization, Iwate Medical University (hereinafter referred to as “the Organization”).

    ・The Software shall, in principle, be provided free of charge.

    ・It shall be verified that the computer used complies with usage conditions and validation required by the Software.

    ・The user shall bear responsibility for installing and using the Software. The Organization confirms that it will bear no liability for any and all problems the user experiences in installing or using the Software. The Organization also confirms that it will bear no liability for any dispute between the user and a third party (including but not limited to a dispute concerning copyright or other intellectual property right).

    ・If the Software is used to prepare a presentation for an academic organization, a published article, a book, or an entry in a company pamphlet, the user shall include the URL used to distribute the Software and an acknowledgement of its use.

    ・All rights such as copyright to the Software and copies of the Software shall belong to the Organization.

    ・The Software shall not be used for any other purpose and shall not be provided to a third party.

    ・The Software shall not be entirely or partly revised, modified, reverse engineered, reverse compiled, or reverse assembled.

    ・No part whatever of the Software may be copied, corrected, loaned, sold, distributed, or transferred. Additionally, copying without authorization is prohibited.

    ・The Software shall not be used for any commercial activity (rental, pseudo-rental, or sales to a third party).

    ・It shall be confirmed that when the user is provided with the Software, this neither explicitly nor implicitly grants the user a guarantee of any kind.

    ・It shall be confirmed that the Software may be improved or modified without notice.


    Please contact the following email address every time when researching,making a conference presentation, and presenting a paper with the software.

    Also, please quote the following literature when using the software for an academic paper.
    Tokutomi T, Fukushima A, Yamamoto K, Bansho Y, Hachiya T, Shimizu A. BMC Med Genet. 2017;18:71.

    How did you find out f-tree?

    Purpose of use






    Update information

    March 19, 2015
    Jun 26, 2015
    January 5, 2017
    May 17, 2017
    GC v1.0.0
    October 18, 2017
    GC v1.0.1
    November 10, 2017
    GC v1.1.0
    December 2, 2017
    GC v1.1.1
    January 29, 2018
    April 12, 2018
    Jun 11, 2018
    September 02, 2019
    September 03, 2019
    December 10, 2019



    ABOUT f-tree

    f-tree has been mutually developed by Clinical Genetics Department of Iwate Medical University and Holonic Systems Ltd.
    f-tree is a registered trademark (5777066) with patent pending (2017-068503) in Japan.
    It will work on the Adobe AIR. We tested it on the MAC OS X / Windows 7 / 8.1 / 10.
    A video,explaining the usage of f-tree Ver. 1.1.5, is available on TOGO TV.
    Produced by Dr. H. Ono and Dr. H. Bono of Database Center.



    We exhibited f-tree at ICHG2016  13th International Congress of Human Genetics.
    The Book "Let's study the Clinical Genetics with f-tree; the Automated Pedigree Chart Creating Software." is now on sale by publishers CHUGAI-IGAKUSHA.
    Let's study the Clinical Genetics with f-tree; the Automated Pedigree Chart Creating Software.






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