Genetic drift and selection in many-allele range expansions
نویسندگان
چکیده
منابع مشابه
Genetic drift and selection in many-allele range expansions
We experimentally and numerically investigate the evolutionary dynamics of four competing strains of E. coli with differing expansion velocities in radially expanding colonies. We compare experimental measurements of the average fraction, correlation functions between strains, and the relative rates of genetic domain wall annihilations and coalescences to simulations modeling the population as ...
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An allele is one of two or more alternative forms of a gene that arise by mutation and are found at the same place on a chromosome. Because each person’s genome contains two copies of each chromosome (one from his father and one from his mother), each individual has two alleles for each gene. These alleles may be the same or they may be different from one another (Figure 1). In this study, we u...
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As researchers collect spatiotemporal population and genetic data in tandem, models that connect demography and dispersal to genetics are increasingly relevant. The dominant spatiotemporal model of invasion genetics is the stepping-stone model which represents a gradual range expansion in which individuals jump to uncolonized locations one step at a time. However, many range expansions occur qu...
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ژورنال
عنوان ژورنال: PLOS Computational Biology
سال: 2017
ISSN: 1553-7358
DOI: 10.1371/journal.pcbi.1005866