Tuesday, November 24 2020
15:00 - 16:00

IMSc Webinar

Adaptation in changing environments

Kavita Jain

JNCASR, Bengaluru

[Google Meet Link]: meet.google.com/hje-tmok-xxf

[Download title and abstract of the talk]: www.imsc.res.in/~asamal/seminar/KavitaJain_Nov24_2020.pdf

Natural environments are seldom static and therefore it is important to ask how a population adapts in a changing environment. I will consider a stochastically evolving population in which the mutant is beneficial during a part of the seasonal cycle and deleterious in another. The chance that the mutant spreads in the population depends on the instant it arose in the population and described by a time-inhomogeneous backward Fokker-Planck equation. I will discuss our analytical results for the first-passage probability and first-passage time, and their relevance to the evolution of genetic dominance.

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