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  • APCTP SEMIANR : Sex-ratio bias induced by mutation
  • 작성자 관리자 등록일 2020-08-03 조회수 497
  • APCTP SEMIANR : Sex-ratio bias induced by mutation

    VENUE Online via ZOOM

    DATE & TIME 8.7 (Fri.), 2020 / 15:00 (KST)

    ZOOM LINK https://zoom.us/j/97048986031

    ABSTRACT

      A question in evolutionary biology is why the number of males is approximately equal to that of females in many species, and Fisher's theory of equal investment answers that it is the evolutionarily stable state. The Fisherian mechanism can be given a concrete form by a genetic model based on the following assumptions: (1) Males and females mate at random. (2) An allele acts on the father to determine the expected progeny sex ratio. (3) The offspring inherits the allele from either side of the parents with equal probability. The model is known to achieve the 1:1 sex ratio due to the invasion of mutant alleles with different progeny sex ratios. In this study, however, we argue that mutation plays a more subtle role in that fluctuations caused by mutation renormalize the sex ratio and thereby keep it away from 1:1 in general. This finding shows how the sex ratio is affected by mutation in a systematic way, whereby the effective mutation rate can be estimated from an observed sex ratio.

     

    * This seminar will be given in Korean.

     

    SPEAKER

    Name

    Affiliation

           Seung Ki Baek   Pukyong National University

     

    HOST

    Name

    Affiliation

             Hyejin Park                   APCTP

     

     

    CONTACT INFORMATION
    1) Host: Dr. Hyejin Park (hyejin.park@apctp.org)
    2) Office: Research Support Team (ra@apctp.org)

    SPONSOR
    APCTP

     

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