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Abstract Detail

Evolutionary Developmental Biology (Evo-Devo)

Maheepala, Dinusha [1], Rajewski, Alex [1], Henry, Ashley [2], Elkins, Kevan [3], Litt, Amy [1].

Transcriptomes analysis of independently derived fleshy fruit in Solanaceae.

Many animal species, including humans, depend on fleshy fruits for nutrition. Fleshy fruits have evolved numerous times during the evolution of angiosperms. However, we do not know the molecular mechanisms responsible for these evolutionary events. In Solanaceae (nightshades), there was a shift to fleshy fruit in the sub-family Solanoideae from the plesiomorphic dry capsule. In addition, there were independent origins of fleshy berry in Cestrum and Brunfelsia. The availability of multiple sequenced genomes, as well as well-developed molecular tools for Solanaceae, provides an excellent opportunity to study the molecular basis of fleshy fruit evolution. As part of a larger project aimed at elucidating the genetic architecture that distinguishes fleshy fruit from dry fruit, we compared the transcriptomes of tomato (Solanum lycopersicum), the closest wild relative (Solanum pimpinellifolium), and the independently derived berry of Cestrum diurnum. Relatively few studies have looked at fleshy fruit development prior to ripening but studies have shown that key features such as shape, size, and pericarp thickness are determined at those early stages. Therefore, we performed transcriptome profiling at early and late stages of fruit developmental. The transcriptome of Solanum pimpinellifolium allows us to identify elements of the genetic networks that may have undergone changes during domestication, and Cestrum enables us to identify genetic networks common to fleshy fruit development in Solanaceae. Our analyses will illustrate fleshy fruit molecular dynamics on both developmental and evolutionary timescales.

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1 - University of California, Riverside, Botany and Plant Sciences
2 - Truman State University
3 - University of California, Riverside


Presentation Type: Poster
Session: P, Evolutionary Developmental Biology (Evo-Devo)
Location: Exhibit Hall/Omni Hotel
Date: Monday, June 26th, 2017
Time: 5:30 PM This poster will be presented at 5:30 pm. The Poster Session runs from 5:30 pm to 7:00 pm. Posters with odd poster numbers are presented at 5:30 pm, and posters with even poster numbers are presented at 6:15 pm.
Number: PEV001
Abstract ID:394
Candidate for Awards:Katherine Esau Award,Developmental and Structural Section best poster

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