American Institute of Mathematical Sciences

Advanced
2007, 4(4): 661-673. doi: 10.3934/mbe.2007.4.661

Modelling periodic oscillations during somitogenesis

Peng Feng 1, and  Menaka Navaratna 1,

1. 

Department of Physical Sciences and Mathematics, Florida Gulf Coast University, 10501 FGCU Blvd. S., Fort Myers, FL 33965, United States, United States

Received  July 2007 Revised  July 2007 Published  August 2007

We consider a model of genetic network that has been previously presented by J. Lewis. This model takes the form of delay differential equations with two delays. We give conditions for the local stability of the non-trivial steady state. We investigate the condition underwhich stability is lost and oscillations occur. In particular, we show that when the ratio of the time delays passes a threshold, sustained oscillations occur through a Hopf bifurcation. Through numerical simulations, we further investigate the ways in which various parameters influence the period and the amplitude of the oscillations. In conclusion, we discuss the implications of our results.
Keywords: somitogenesis, pattern formation., delay differential equations.
Mathematics Subject Classification: Primary: 34C23, 34C25; Secondary: 92B2.
Citation: Peng Feng, Menaka Navaratna. Modelling periodic oscillations during somitogenesis. Mathematical Biosciences & Engineering, 2007, 4 (4) : 661-673. doi: 10.3934/mbe.2007.4.661
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