Abstract Detail

Population Genetics/Genomics

Audi, Lauren [1], Nyree, Zerega [2].

Tracing breadfruit introductions intothe Caribbean using next generation sequencing.

The world population relies on less than one percent of potential food crops for 90% of our global diet. Breadfruit, Artocarpus altilis, is a long-lived tropical tree native to Oceania and recognized internationally as an emerging crop with potential for expanded use in the tropics. Breadfruit has a long history of domestication, giving rise to over 2,000 named varieties. However, breadfruit diversity outside of Oceania is less well understood. The Caribbean is the second largest producer of breadfruit products. In 1793, Captain Bligh introduced breadfruit from Tahiti to the Caribbean via the island of St. Vincent. It is thought that he introduced five varieties, however the nation now recognizes over 25. Next generation sequencing techniques make it possible to differentiate between closely related varieties. Using sequencing by hybridization methods we sequenced 150 different breadfruit varieties from 12 regions across the globe, with a focus on St. Vincent and Tahiti. Analysis of these data, as well as morphological data, will give insight into global breadfruit diversity and inform which varieties were originally introduced to the Caribbean and identify varieties important for conservation. Data will inform the creation of a SNP panel to assist in future germplasm identification. Additionally, ongoing work with local farmers in St. Vincent to setup breadfruit flour production will be discussed.

1 - American Museum of Natural History, Genomics, Genomics, Central Park West and 79th Street, Manhattan, New York, 10024, United States
2 - Northwestern University , Plant Biology and Conservation , 633 Clark St, Evanston , IL, 60022, United States

Targeted sequencing
economic botany.

Presentation Type: Oral Paper
Session: POPGEN3, Population Genetics/Genomics III
Location: Virtual/Virtual
Date: Friday, July 31st, 2020
Time: 11:15 AM
Number: POPGEN3006
Abstract ID:803
Candidate for Awards:Margaret Menzel Award

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