Abstract Detail



Phylogenomics

Daundasekara, Kasuni [1], Garza, Elyssa [1], Pepper, Alan [2].

Genome sequencing based phylogenetic analyses of Streptanthus, Caulanthus, and related genera (Brassicacae) .

Brassicaceae is a family of flowering plants, which contains large number of taxa that are endemic to harsh soils such as serpentine. The lack of high-confidence phylogenetic resolution among some genera of this family such as Streptanthus and Caulanthus, has been a major drawback to study the evolutionary adaptations of these groups. We are using low-coverage genome sequencing (1X-4X) to resolve the phylogenetic relationships of approximately 30 species within the genera Streptanthus, Caulanthus and Guillenia. Sequenced reads were separated into mitochondrial, chloroplast, and ribosomal repeat (rRNA) regions for separate assembly and analysis. The nonrecombinant, uniparental and conserved nature of the chloroplast and mitochondrion make them useful for high-confidence “backbone” evolutionary studies. The final objective of this study is to build a highly resolved phylogeny for the targeted species using the organelle and nuclear (ribosomal repeat) sequences.


1 - Texas A&M University, Department of Biology, 400 Bizzell St,, College Station, TX, 77843, United States
2 - Texas A&M University, Department Of Biology, Texas A&M University, TAMU 3258, 214 Bsbe, College Station, TX, 77843, United States

Keywords:
Brassicaceae
serpentine
low-coverage genome sequencing
phylogeny.

Presentation Type: Poster 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: PPH009
Abstract ID:753
Candidate for Awards:None


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