Empirical fitness landscapes and the predictability of evolution

Autor: J. Arjan G. M. de Visser, Joachim Krug
Jazyk: angličtina
Rok vydání: 2014
Předmět:
Zdroj: Nature Reviews Genetics, 15, 480-490
Nature Reviews Genetics 15 (2014)
ISSN: 1471-0056
Popis: A central topic in biology concerns how genotypes determine phenotypes and functions of organisms that affect their evolutionary fitness. This Review discusses recent advances in the development of empirical fitness landscapes and their contribution to theoretical analyses of the predictability of evolution. The genotype–fitness map (that is, the fitness landscape) is a key determinant of evolution, yet it has mostly been used as a superficial metaphor because we know little about its structure. This is now changing, as real fitness landscapes are being analysed by constructing genotypes with all possible combinations of small sets of mutations observed in phylogenies or in evolution experiments. In turn, these first glimpses of empirical fitness landscapes inspire theoretical analyses of the predictability of evolution. Here, we review these recent empirical and theoretical developments, identify methodological issues and organizing principles, and discuss possibilities to develop more realistic fitness landscape models.
Databáze: OpenAIRE