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Abstract Detail



Phylogenomics

Moore, Abigail J. [1], de Vos, Jurriaan M. [2], Edwards, Erika J. [3].

Evolution of adaptations to drought, with an emphasis on photosynthetic physiology in Anacampseros (Anacampserotaceae, Caryophyllales) using targeted sequence capture.

The Anacampserotaceae include five somewhat widespread, weakly shrubby species in the New World, one species in Australia, and a radiation of approximately 30 species in arid areas of southern Africa. Most of the species are leaf succulents, with one clade within the southern African plants having reduced leaves and stem succulence. While the New World species are drought-deciduous, the African species retain their leaves, and are able to use the water stored in the leaves to produce their inflorescences during the dry summers.
We are using targeted sequence capture to reconstruct the phylogeny of the Anacampserotaceae, with both genes that are commonly sequenced for phylogenetic purposes (nuclear ribosomal DNA, chloroplast DNA, phytochrome C) and genes that are related to photosynthesis. We measured succulence using saturated leaf water content and determined carbon isotope values from both greenhouse-grown leaves developed under plentiful water conditions and field-grown leaves that were collected during the summer drought.


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1 - Brown University, Department Of Ecology And Evolutionary Biology, 80 Waterman Street, Box G-W, Providence, RI, 02912, USA
2 - Brown University, EEB Department, Edwards Lab, 80 Waterman St., Box GW, Providence, RI, 02912, USA
3 - Brown University, Box G-W, 80 Waterman St, Providence, RI, 02912, USA

Keywords:
Portulacineae
CAM
Anacampserotaceae
Sequence capture.

Presentation Type: Oral Paper:Papers for Topics
Session: 32
Location: Salon 11/The Shaw Conference Centre
Date: Tuesday, July 28th, 2015
Time: 11:15 AM
Number: 32013
Abstract ID:865
Candidate for Awards:None


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