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Abstract Detail



Genetics Section

Warschefsky, Emily [1], Campbell, Richard [2], von Wettberg, Eric [3].

Insight into the genetic composition of the mango (Mangifera indica L.).

The mango, Mangifera indica L. (Anacardiaceae), is a perennial fruit tree that has been cultivated on the Indian subcontinent for more than four millennia. In the 4th and 5th centuries B.C.E., Indian monks introduced the mango into Southeast Asia, bringing it into secondary contact with more than 35 other Mangifera species. Today, the mango is the most-produced tropical fruit in the world with more than 1,000 cultivars of grown around the globe. In general, these cultivars are categorized as either Indian types or Indochinese types based on a number of fruit characteristics including shape, color, and flavor. Some evidence suggests that these Indian and Indochinese cultivars may represent genetically distinct populations, yet no explanation for this differentiation has been proposed. Here, we propose to examine the population structure and genetic differentiation of Indian and Indochinese mango cultivars and propose interspecific hybridization as a possible mechanism for differentiation between these cultivar types. Double digest restriction site associated DNA (ddRAD) sequencing will be used to identify single nucleotide polymorphisms from 96 samples of mango cultivars and Mangifera species. Analysis will reveal levels of population structure, admixture, and introgression in cultivars and species. These results will offer insight into the genetic composition and evolutionary history of one of the world’s most important fruit crops.


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1 - Florida International University and Fairchild Tropical Botanic Garden, Biological Sciences, 11200 SW 8th St, Miami, FL, 33199
2 - Fairchild Tropical Botanic Garden, 10901 Old Cutler Road, Coral Gables, Florida, 33156, United States
3 - Florida International University & Fairchild Tropical Botanic Garden, 11200 SW 8th St., OE 169, Miami, FL, 33199, United States

Keywords:
domestication
hybridization
restriction site associated DNA
Anacardiaceae.

Presentation Type: Poster:Posters for Sections
Session: P
Location: Eyrie/Boise Centre
Date: Monday, July 28th, 2014
Time: 5:30 PM
Number: PGN005
Abstract ID:869
Candidate for Awards:Genetics Section Poster Award


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