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The Roles of Natural Selection, History and Chance in Escherichia coli

Smith, Chelsea Elizabeth
http://rave.ohiolink.edu/etdc/view?acc_num=akron1478272123989472

Abstract Details

2016, Master of Science, University of Akron, Biology.
Long term evolution experiments have long proven that there are both genetic and environmental factors that are important in changing the way evolution progresses. Factors such as deep phylogenetic history, recent shallow histories, adaptation to novel environments and random chance events can all directly affect the fate of a population. However, understanding the interplay between such factors remains relatively unexplored. In this study we set out to examine the roles of natural selection, history and chance and their influence on determining evolutionary rate. We find that despite all populations showing an increased gain in fitness, the trajectory of an evolving population is constrained by an interaction of effects. The results of this study aligns with Sewall Wright’s idea that adaptive evolution is contingent on the interactions of other evolutionary forces. Studies like this can therefore allow us to further investigate these sophisticated interactions that change the way evolution progresses.
Francisco Moore (Advisor)
Robert J. Duff (Committee Member)
John Senko (Committee Member)
39 p.
Evolution and Development
Long term experimental evolution; bacteria; Escherichia coli; Richard Lenski; evolution; natural selection

Recommended Citations

Citations

  • Smith, C. E. (2016). The Roles of Natural Selection, History and Chance in Escherichia coli [Master's thesis, University of Akron]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=akron1478272123989472

    APA Style (7th edition)

  • Smith, Chelsea. The Roles of Natural Selection, History and Chance in Escherichia coli. 2016. University of Akron, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=akron1478272123989472.

    MLA Style (8th edition)

  • Smith, Chelsea. "The Roles of Natural Selection, History and Chance in Escherichia coli." Master's thesis, University of Akron, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=akron1478272123989472

    Chicago Manual of Style (17th edition)

akron1478272123989472
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© 2016, all rights reserved.
This open access ETD is published by University of Akron and OhioLINK.