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The Luria-Delbr{\"u}ck experiment is a cornerstone of evolutionary theory, demonstrating the randomness of mutations before selection. The distribution of the number of mutants in this experiment has been the subject of intense…

生物物理 · 物理学 2015-07-20 Bahram Houchmandzadeh

The classical Luria-Delbr\"uck model for fluctuation analysis is extended to the case where cells can either divide or die at the end of their generation time. This leads to a family of probability distributions generalizing the…

种群与进化 · 定量生物学 2013-05-30 Bernard Ycart

The estimation of mutation probabilities and relative fitnesses in fluctuation analysis is based on the unrealistic hypothesis that the single-cell times to division are exponentially distributed. Using the classical Luria-Delbr\"{u}ck…

定量方法 · 定量生物学 2014-03-05 Bernard Ycart

We present an explicit solution to a classic model of cell-population growth introduced by Luria and Delbrueck 70 years ago to study the emergence of mutations in bacterial populations. In this model a wild-type population is assumed to…

概率论 · 数学 2015-06-23 Peter Keller , Tibor Antal

The Luria-Delbr\"uck distribution is a classical model of mutations in cell kinetics. It is obtained as a limit when the probability of mutation tends to zero and the number of divisions to infinity. It can be interpreted as a compound…

应用统计 · 统计学 2013-09-11 Agnès Hamon , Bernard Ycart

The growth of a population is often modeled as branching process where each individual at the end of its life is replaced by a certain number of offspring. An example of these branching models is the Bellman-Harris process, where the…

One of the most popular models for quantitatively understanding the emergence of drug resistance both in bacterial colonies and in malignant tumors was introduced long ago by Luria and Delbr\"uck. Here, individual resistant mutants emerge…

种群与进化 · 定量生物学 2014-04-10 David A. Kessler , Herbert Levine

Microbial populations adapt to their environment by acquiring advantageous mutations, but in the early twentieth century, questions about how these organisms acquire mutations arose. The experiment of Salvador Luria and Max Delbr\"uck that…

种群与进化 · 定量生物学 2021-06-24 Stephen Montgomery-Smith , Hesam Oveys

First, we revisit the stochastic Luria-Delbr\"uck model: a classic two-type branching process which describes cell proliferation and mutation. We prove limit theorems and exact results for the mutation times, clone sizes, and number of…

概率论 · 数学 2018-09-05 David Cheek , Tibor Antal

Originally developed to elucidate the mechanisms of natural selection in bacteria, the Luria-Delbr\"uck model assumed that cells are intrinsically capable of dividing an unlimited number of times. This assumption however, is not true for…

种群与进化 · 定量生物学 2015-11-17 Ignacio A Rodriguez-Brenes , Dominik Wodarz , Natalia L. Komarova

This paper calculates probability distributions modeling the Luria-Delbr\"uck experiment. We show that by thinking purely in terms of generating functions, and using a 'backwards in time' paradigm, that formulas describing various…

种群与进化 · 定量生物学 2016-08-16 Stephen Montgomery-Smith , Anh Le , George Smith , Sidney Billstein , Hesam Oveys , Dylan Pisechko , Austin Yates

We re-examined data from the classic Luria-Delbruck fluctuation experiment, which is often credited with establishing a Darwinian basis for evolution. We argue that, for the Lamarckian model of evolution to be ruled out by the experiment,…

种群与进化 · 定量生物学 2017-09-13 Caroline Holmes , Mahan Ghafari , Abbas Anzar , Varun Saravanan , Ilya Nemenman

The Luria-Delbr\"uck mutation model has a long history and has been mathematically formulated in several different ways. Here we tackle the problem in the case of a continuous distribution using some mathematical tools from nonlinear…

数学物理 · 物理学 2011-12-14 Eugene Kashdan , Lorenzo Pareschi

The Luria-Delbr\"uck model is a classic model of population dynamics with random mutations, that has been used historically to prove that random mutations drive evolution. In typical scenarios, the relevant mutation rate is exceedingly…

生物物理 · 物理学 2024-02-22 Deng Pan , Jie Lin , Ariel Amir

Fluctuations of cell state, e.g., abundances of some proteins, have attracted much attention both theoretically and experimentally. The distribution of such state over cells, however, is not only a result of intracellular stochastic…

生物物理 · 物理学 2007-05-23 Katsuhiko Sato , Kunihiko Kaneko

We consider a general class of Markovian models describing the growth in a randomly fluctuating environment of a clonal biological population having several phenotypes related by stochastic switching. Phenotypes differ e.g. by the level of…

种群与进化 · 定量生物学 2022-01-25 J. Unterberger

New automated and high-throughput methods allow the manipulation and selection of numerous bacterial populations. In this manuscript we are interested in the neutral diversity patterns that emerge from such a setup in which many bacterial…

种群与进化 · 定量生物学 2024-03-13 Guilhem Doulcier , Amaury Lambert

We compute the growth fluctuations in equilibrium of a wide class of deposition models. These models also serve as general frame to several nearest-neighbor particle jump processes, e.g. the simple exclusion or the zero range process, where…

概率论 · 数学 2007-09-12 Marton Balazs

We extend our study of a simple model of biological coevolution to its statistical properties. Staring with a complete description in terms of a master equation, we provide its relation to the deterministic evolution equations used in…

种群与进化 · 定量生物学 2007-05-23 R. K. P. Zia , Per Arne Rikvold

We introduce a Mellin transform of functions which live on all of $\bR$ and discuss its applications to the limiting theory of Bellman-Harris processes, and specifically Luria-Delbr\"uck processes. More precisely, we calculate the life-time…

概率论 · 数学 2008-04-16 Wolfgang P. Angerer
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