Reproduction time statistics and segregation patterns in growing populations

Details Reproduction time statistics and segregation patterns in growing populations Reproduction time statistics and segregation patterns in growing populations

2011-11-13

arxiv.org/abs/1111.2992v2

Biology

Quantitative Biology

Populations and Evolution

Scientific paper

10.1103/PhysRevE.85.021923

Pattern formation in microbial colonies of competing strains under purely space-limited population growth has recently attracted considerable research interest. We show that the reproduction time statistics of individuals has a significant impact on the sectoring patterns. Generalizing the standard Eden growth model, we introduce a simple one-parameter family of reproduction time distributions indexed by the variation coefficient {\delta} \in [0, 1], which includes deterministic ({\delta} = 0) and memoryless exponential distribution ({\delta} = 1) as extreme cases. We present convincing numerical evidence and heuristic arguments that the generalized model is still in the KPZ universality class, and the changes in patterns are due to changing prefactors in the scaling relations, which we are able to predict quantitatively. At the example of Saccharomyces cerevisiae, we show that our approach using the variation coefficient also works for more realistic reproduction time distributions.

Affiliated with

Also associated with

No associations

Rating

Reproduction time statistics and segregation patterns in growing populations does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Reproduction time statistics and segregation patterns in growing populations, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Reproduction time statistics and segregation patterns in growing populations will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-340491