Distribution of Fitness in Populations of Dengue Viruses |
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| Authors: | Md Abu Choudhury William B Lott John Aaskov |
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| Institution: | 1. Institute of Health and Biomedical Innovation, Queensland University of Technology, Brisbane, Queensland, Australia.; 2. School of Chemistry, Physics, and Mechanical Engineering, Science and Engineering Faculty, Queensland University of Technology, Brisbane, Queensland, Australia.; University of California Davis, United States of America, |
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| Abstract: | Genetically diverse RNA viruses like dengue viruses (DENVs) segregate into multiple, genetically distinct, lineages that temporally arise and disappear on a regular basis. Lineage turnover may occur through multiple processes such as, stochastic or due to variations in fitness. To determine the variation of fitness, we measured the distribution of fitness within DENV populations and correlated it with lineage extinction and replacement. The fitness of most members within a population proved lower than the aggregate fitness of populations from which they were drawn, but lineage replacement events were not associated with changes in the distribution of fitness. These data provide insights into variations in fitness of DENV populations, extending our understanding of the complexity between members of individual populations. |
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