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Differential expression of recent gene duplicates in developmental tissues of Arabidopsis thaliana

Owens, Sarah Marie
http://rave.ohiolink.edu/etdc/view?acc_num=miami1250185890

Abstract Details

2009, Master of Science, Miami University, Botany.
Gene duplication can lead to increased morphological complexity by giving rise to new genes and gene functions. The classic Ohno model predicts new gene duplicates will be functionally redundant. However, this model does not address functional divergence due to differential expression. To test this possibility, the developmental expression patterns of 18 pairs of unlinked recent duplicates in Arabidopsis thaliana were characterized. These duplicates have a Ks less than 5%, are less than 2 my old, and are specific to the A. thaliana lineage. The coding regions of these duplicates are generally complete, although they share only an average 616 bp of upstream regulatory sequence. We found that the majority of duplicate loci have non-redundant expression patterns, suggesting functional divergence occurs soon after duplication for unlinked duplicates. Furthermore, comparison of expression data from this study to online databases suggests these databases cannot reliably differentiate expression patterns among recent duplicate genes.
Richard Moore, Dr. (Advisor)
Qingshun Li, Dr. (Committee Member)
Martin Stevens, Dr. (Committee Member)
55 p.
Botany; Genetics; Molecular Biology
Gene duplication; recent gene duplicates; differential expression; gene expression; unlinked duplicates; expression divergence

Recommended Citations

Citations

  • Owens, S. M. (2009). Differential expression of recent gene duplicates in developmental tissues of Arabidopsis thaliana [Master's thesis, Miami University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=miami1250185890

    APA Style (7th edition)

  • Owens, Sarah. Differential expression of recent gene duplicates in developmental tissues of Arabidopsis thaliana. 2009. Miami University, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=miami1250185890.

    MLA Style (8th edition)

  • Owens, Sarah. "Differential expression of recent gene duplicates in developmental tissues of Arabidopsis thaliana." Master's thesis, Miami University, 2009. http://rave.ohiolink.edu/etdc/view?acc_num=miami1250185890

    Chicago Manual of Style (17th edition)

miami1250185890
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© 2009, all rights reserved.
This open access ETD is published by Miami University and OhioLINK.