I have sequenced, assembled and annotated the de novo sea otter genome, and am using a custom sequence capture to study demographic history and genetic load in modern sea otter populations using modern and ancient DNA. I have also compared methods of demographic inference from genomic data to determine which methods, if any, are able to recapitulate multiple summaries of the data. In the past I have worked on forward-in-time simulations to assess the impacts of the 18th-19th fur trade on sea otter genomic diversity and genetic load, used RNA-Seq to study the impact of pollutants on dolphin gene expression, characterized the cetacean gut microbiome with high-throughput sequencing data, and modeled human demography using the site frequency spectrum.
Harvard University, Cambridge, MA
A.B., summa cum laude, Organismic & Evolutionary Biology (2012)
Secondary Field: Celtic Languages & Literatures
Junior 24 Phi Beta Kappa
Beichman, Annabel C, Tanya Phung, Kirk E. Lohmueller. In press. “Comparison of single genome and allele frequency data reveals discordant demographic histories.” G3: Genes | Genomes | Genetics. Biorxiv: http://www.biorxiv.org/content/early/2017/08/31/182899
Sanders, Jon G, Annabel C Beichman, Joe Roman, Jarrod J Scott, David Emerson, James J McCarthy, and Peter R Girguis. 2015. “Baleen Whales Host a Unique Gut Microbiome with Similarities to Both Carnivores and Herbivores.” Nature Communications 6 (September): 8285. doi:10.1038/ncomms9285.
GRANTS AND AWARDS
National Science Foundation Graduate Research Fellowship (NSF GRFP) (2015)
NIH Genomic Analysis Training Program Training Grant (2014-2015;2015-2016)
UCLA Pauley Fellowship (2013)
Henry Russell Shaw Summer Fellowship (2012)
Junior 24 Phi Beta Kappa (2011)
Museum of Comparative Zoology Grant for Undergraduate Research (2011)
Alex G. Booth ’30 Fund Fellowship (2011)
Herchel-Smith Summer Undergraduate Research Fellowship (2010)
Detur Book Prize (2009)
John Harvard Scholar (2009, 2010)
UC Conservation Genomics Consortium PI Meeting & Workshop, “Sea Otter Genomics,” San Jose, CA, August 15-18, 2017.
La Kretz Conservation Genomics Workshop, Annabel Beichman & Kirk Lohmueller, “Comparison of single genome and allele frequency data reveals discordant demographic histories,” Los Angeles, CA, March 25-29, 2017, oral presentation
Global Biodiversity Genomics Conference, “Comparison of single genome and allele frequency data reveals discordant demographic histories,” Washington D.C., February 21-23, 2017, oral presentation
Southern California Academy of Sciences 2016 Annual Meeting, “The Paradox of the Whale Gut Microbiome: Baleen Whales Host a Unique Bacterial Community with Similarities to both Carnivores and Herbivores,” May 2016.
BWF-CHIP, GATP, & SIB Research Symposium (UCLA), “The Potential Impacts of Exploitation on Modern Sea Otter Genomes” [Poster], Winner — Best Poster, April 2016
2016 NHGRI Annual Meeting (Bethesda, MD), “The Paradox of the Whale Gut Microbiome” [Poster], April 2016
American Cetacean Society, Los Angeles Chapter, Monthly Seminar (San Pedro, CA), “The Paradox of the Whale Gut Microbiome” [1 hour public talk], March 2016
Southern Sea Otter Research Update Meeting (Santa Cruz, CA), “The Potential Impacts of Exploitation on Modern Sea Otter Genomes,” February 2016
Ecology & Evolutionary Biology Pub Seminar Series (UCLA), “The Paradox of the Whale Gut Microbime,” January 2016
21st Biennial Society for Marine Mammalogy Conference (San Francisco, CA) “The whale gut microbiome digests a carnivorous diet using pathways common in terrestrial herbivores,” December 2015
Monterey Bay Aquarium Brown Bag Seminar Series (Monterey, CA) “Sea Otter Genomics: Impacts of Exploitation on Marine Mammal Genomes,” September 2015
BWF-CHIP, GATP, & SIB Research Symposium (UCLA) “The whale gut microbiome digests a carnivorous diet using pathways common in terrestrial herbivores,” May 2015
UC Santa Cruz, “Insights into the Whale Gut Microbiome,” March 2013
Senior Thesis 2011 – 2012
Harvard University, Girguis & McCarthy Labs
“Gut Flora of the North Atlantic Right Whale: the 0.2 micron inhabitants of a 17 meter Leviathan.”
Advisers: James McCarthy & Peter Girguis (Harvard) and Joe Roman (Gund Institute for Ecological Economics)
Thesis Readers: Colleen Cavanaugh, Christopher Marx, Peter Girguis, James McCarthy
Thesis Description: I collected cetacean fecal samples for genetic and chemical analysis, extracted genomic DNA from the feces and pyrosequenced the microbial 16S region to characterize the bacteria expelled from the gut. I worked with Dr. Girguis’ student Jon Sanders to analyze the resulting data in the program QIIME and carried out principal components analyses to compare the whale gut microbial community to those of terrestrial mammals, discovering that baleen whales have unique and highly diverged gut microbial communities. I have continued to work on these questions with my Harvard colleagues after graduation, adding metagenomic fecal data from many other cetaceans and a range of terrestrial animals to expand our dataset. We theorize that the need to digest large amounts of chitin (in the exoskeletons of krill and copepods) may the driving force behind the divergence in the gut flora of baleen whales.
Summer Research Internship Summer 2010
Stanford University, Hopkins Marine Station, Palumbi Lab
Advisers: Steve Palumbi & Melissa Pespeni
Projects: I participated in two projects, the first on corals sampled from American Samoa and the second on genome-wide signatures of selection in purple sea urchins along the west coast. I used PCR to amplify genes with known markers to discover that certain corals were new recruits to a reef in a marine sanctuary, demonstrating gene flow between the marine reserve and other reefs. The second project was more extensive; Dr. Melissa Pespeni had used a Restriction Site Tiling Analysis (RSTA) array to identify sites in urchin genomes that differ between Boiler Bay, OR and San Diego, CA populations. I looked for patterns of adaptive variation by expanding her dataset to encompass four additional sites on the west coast. I carried out sample collection in local intertidal zones, extracted genomic DNA from spine samples, amplified the genes of interest using PCR and edited the sequences in the program Sequencher. In the process, I trained a high school student in laboratory and analysis techniques. As published in Pespeni & Palumbi (2013, Molecular Ecology), our study found signatures of selection across the urchins’ range in patterns suggestive of ongoing balancing selection, possibly acting on the urchins’ larval form.
Undergraduate Lab Assistant 2009 – 2011
Harvard University, Edwards Lab
Advisers: Scott Edwards & Miguel Alcaide
Project: I studied the genetic variation of zebra finch song learning genes for my first laboratory research experiences at Harvard. We sequenced song learning genes from finches sampled on the Australian mainland and a nearby island to look for single nucleotide polymorphisms (SNPs) between the populations. The presence of such polymorphisms would demonstrate divergence in highly conserved song-learning genes between the parent and island populations, hinting at the evolution of different song ‘dialects’ as a possible factor in speciation. Our sample size was too small for significant results, but we did identify a few polymorphisms which may indicate that some divergence is occurring.