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Effects Of Initial Small Population Size On The Genetic Diversity Of An American Chestnut Castanea Dentata [Marsh.] Borkh; Fagaceae) Stand

Pierson, Sarah Ann Morgan
http://rave.ohiolink.edu/etdc/view?acc_num=ucin1130910669

Abstract Details

2005, MS, University of Cincinnati, Arts and Sciences : Biological Sciences.
Reintroduction of chestnut-blight-resistant Castanea dentata may be facilitated by understanding genetic variation, and how its transmission is affected by a genetic bottleneck. Genetic diversity for groups of chestnuts from an isolated Wisconsin population (one group of nine founders and three groups of descendants) and two natural transects were compared. Two minisatellite DNA probes revealed 84 markers among nine founders (ca. 24 loci surveyed) that were analyzed for transmission. The descendants were more heterozygous (estimated heterozygosity = H = 0.5554) and less similar (S = 0.5329) compared to the founders (H = 0.5179; S = 0.5636; p<0.0504). Infected individuals were more heterozygous and less similar than uninfected individuals from Wisconsin (H = 0.5728 versus 0.5319; S = 0.5245 versus 0.5708, respectively; both differ at p<0.01). When compared to natural transects ( H = 0.5224, S = 0.6101), the founders showed no significant differences in heterozygosity or similarity but the descendants showed increased heterozygosity and decreased similarity (p<0.03). These results bode well for reintroduction since pronounced effects of drift and inbreeding were not detected in the West Salem population.
Dr. Steven Rogstad (Advisor)
92 p.
minisatellite DNA; DNA fingerprinting; population bottleneck; Castanea dentata; American chestnut

Recommended Citations

Citations

  • Pierson, S. A. M. (2005). Effects Of Initial Small Population Size On The Genetic Diversity Of An American Chestnut Castanea Dentata [Marsh.] Borkh; Fagaceae) Stand [Master's thesis, University of Cincinnati]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1130910669

    APA Style (7th edition)

  • Pierson, Sarah. Effects Of Initial Small Population Size On The Genetic Diversity Of An American Chestnut Castanea Dentata [Marsh.] Borkh; Fagaceae) Stand. 2005. University of Cincinnati, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=ucin1130910669.

    MLA Style (8th edition)

  • Pierson, Sarah. "Effects Of Initial Small Population Size On The Genetic Diversity Of An American Chestnut Castanea Dentata [Marsh.] Borkh; Fagaceae) Stand." Master's thesis, University of Cincinnati, 2005. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1130910669

    Chicago Manual of Style (17th edition)

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© 2005, all rights reserved.
This open access ETD is published by University of Cincinnati and OhioLINK.