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The Natural Diversity of Carica papaya in Panama

Mardonovich, Sandra
http://orcid.org/0000-0003-4753-3720
http://rave.ohiolink.edu/etdc/view?acc_num=miami1461835428

Abstract Details

2016, Master of Science, Miami University, Botany.
The biodiversity of wild crop species can be threatened by genetic introgression of cultivated traits from co-occurring cultivated varieties. The tropical fruit crop, papaya (Carica papaya L.), is a model organism to study questions related to crop-to-wild gene flow because it is cultivated in Central America alongside natural populations. Morphological and genetic diversity was assessed for a collection of naturally occurring papaya individuals from four regions in Panama', which is the southern-most extent of papaya’s range. Significant morphological variation was limited, and fruit characteristics align with typical wild-type traits; fruits are small and round with a thin mesocarp and yellow flesh. Genetic analyses indicated a deficiency in heterozygosity in all regions except the Northeast region. We found moderate levels of population differentiations and regional structuring. This study provides further insight into the natural biodiversity of a tropical crop cultivated in close proximity to its wild counterparts.
Richard Moore (Advisor)
Botany
Gene flow; natural diversity; genetic structure; morphological diversity

Recommended Citations

Citations

  • Mardonovich, S. (2016). The Natural Diversity of Carica papaya in Panama [Master's thesis, Miami University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=miami1461835428

    APA Style (7th edition)

  • Mardonovich, Sandra. The Natural Diversity of Carica papaya in Panama. 2016. Miami University, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=miami1461835428.

    MLA Style (8th edition)

  • Mardonovich, Sandra. "The Natural Diversity of Carica papaya in Panama." Master's thesis, Miami University, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=miami1461835428

    Chicago Manual of Style (17th edition)

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This open access ETD is published by Miami University and OhioLINK.