Artificial ecosystem selection
AUTOR(ES)
Swenson, William
FONTE
The National Academy of Sciences
RESUMO
Artificial selection has been practiced for centuries to shape the properties of individual organisms, providing Darwin with a powerful argument for his theory of natural selection. We show that the properties of whole ecosystems can also be shaped by artificial selection procedures. Ecosystems initiated in the laboratory vary phenotypically and a proportion of the variation is heritable, despite the fact that the ecosystems initially are composed of thousands of species and millions of individuals. Artificial ecosystem selection can be used for practical purposes, illustrates an important role for complex interactions in evolution, and challenges a widespread belief that selection is most effective at lower levels of the biological hierarchy.
ACESSO AO ARTIGO
http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=16830Documentos Relacionados
- A Mathematical Theory of Natural and Artificial Selection Part X. Some Theorems on Artificial Selection
- Natural Selection Opposing Artificial Selection: A Two-Locus Deterministic Simulation
- Genetic Changes with Generations of Artificial Selection
- Designing Artificial Selection Experiments for Specific Objectives
- Integrative selection of human chromosome-specific yeast artificial chromosomes.