Dr. Brent Robicheau
Postdoctoral Researcher at Clark University, MA, USA
PhD (J LaRoche Lab, 黑料吃瓜网, Nova Scotia, Canada) 2023
听 听 听 听 Marine phytoplankton and diazotrophs in the NW Atlantic and Canadian Arctic Gateway
MSc听(DT Stewart Lab, Acadia University, NS, Canada) 2016听
听 听 听 听 听Mitochondrial DNA Inheritance Patterns in Mussels
BScH (M Snyder Lab, Acadia University, NS, Canada) 2013
听 听 听 听听Ribosomal RNA Gene Evolution in Eukaryotic Genomes
ECO Canada Internship听(AK Walker Lab, Acadia University, NS, Canada) 2016
听 听 听 听 Fungal Endophyte Genetics & Coastal Fungal Diversity
PhD Research
During my time in the LaRoche Lab I explored microdiversity patterns for the cyanobacterial diazotroph,听Candidatus Atelocyanobacterium thalassa (also known as 'UCYN-A') along the Scotian Shelf and within the North Atlantic Ocean more generally. Other major components of my PhD research included the study of phytoplankton and their community characteristics within the coastal Northwest Atlantic, and听the study of听diazotroph biodiversity and biogeography听within the Canadian Arctic Gateway.听My PhD research also involved the use of environmental DNA and听oceanographic data from the 20-year Bedford Basin Monitoring Program time series that is maintained by the Bedford Institute of Oceanography in Halifax Harbour (NS).听
Genetics of Coastal Organisms & Marine Microbial Biodiversity听
As a biologist, I am interested in the genomics听补苍诲 biodiversity听of organisms that reside in听coastal regions. Much of my research has focused on three main study areas: the mitochondrial genomics of bivalves and fungal endophytes, the characterization of听marine microorganism communities both spatially听补苍诲 temporally (for e.g., fungi, archaea, heterotrophic bacteria, and phytoplankton), and听UCYN-A diversity in the North Atlantic听(part of my PhD studies). Currently I am working on post-doctoral research studying the genetic basis of cyanophage infectivity across strains of听厂测苍别肠丑辞肠辞肠肠耻蝉鈥�a听key听marine phytoplankton听group.听
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Publications
Robicheau BM, Tolman J, Rose S, Desai D, LaRoche J. 2023. Marine nitrogen-fixers in the Canadian Arctic Gateway are dominated by biogeographically distinct non-cyanobacterial communities. FEMS Microbiology Ecology 99(12): fiad122.
Robicheau BM, Tolman J, Desai D, LaRoche J. 2023. Microevolutionary patterns in ecotypes of the symbiotic cyanobacterium UCYN-A revealed from a Northwest Atlantic coastal time series. Science Advances 9(39): eadh9768.
Raes EJ, Tolman J, Desai D, Ratten J-M, Zorz J, Robicheau BM, Haider D, LaRoche J. 2022.听Seasonal bacterial niche structures and chemolithoautotrophic ecotypes in a North Atlantic fjord. Scientific Reports 12(15335): 1-13.
Taylor VA, Adams SJ, Robicheau BM, Walker AK. 2022. Lulworthia fundyensis Taylor, Adams, Robicheau & Walker sp. nov. In Crous et al. 2022 Fungal Planet description sheets: 1383鈥�1435. Persoonia鈥揗olecular听Phylogeny and Evolution of Fungi 48:261鈥�371.
Robicheau BM, Tolman J, Bertrand EM, LaRoche J. 2022.听Highly-resolved interannual phytoplankton community dynamics of the coastal Northwest Atlantic. ISME Communications 2:1-12.听
LaRoche J and Robicheau BM. 2022. The Pelagic Light-Dependent Microbiome. In: The Marine Microbiome, 2nd Edition. Springer, Cham. pp. 395-423. 听
Stewart DT, Robicheau BM, Youssef N, Garrido-Ramos MA, Chase EE, Breton S. 2021. Expanding the search for sperm transmission elements in the mitochondrial genomes of bivalve mollusks. Genes 12:1211.听
Adams SJ,听Robicheau BM, LaRue D, Browne R, Walker AK. 2021. Foliar endophytic fungi from the endangered Eastern Mountain Avens (Geum听peckii,听Rosaceae) in Canada. Plants 10:1026
Haas S,听Robicheau BM, Rakshit S, Tolman J, Algar CK, LaRoche J, Wallace DWR. 2021. Physical mixing in coastal waters controls and decouples nitrification via biomass dilution. Proceedings of the National Academy听of Sciences of the USA (PNAS) 118:听e2004877118
Stewart DT, Stephenson CM, Stanton LM, Chase EE,听Robicheau BM, Hoeh WR, Breton S. 2021. A proposed method for analyzing molecular signatures to detect hermaphroditism in freshwater mussels: a case study using the eastern floater (Pyganodon听cataracta). Canadian Journal of Zoology 99:450鈥�458
Walker AK,听Robicheau BM. 2021. Fungal diversity and community structure from coastal and barrier island beaches in the United States Gulf of Mexico.听Scientific Reports 11:3889.
Stewart DT, Breton S, Chase EE,听Robicheau BM, Bettinazzi S, Pante E, Youssef N, Garrido-Ramos MA. 2020. An unusual evolutionary strategy: the origins, genetic repertoire, and implications of doubly uniparental inheritance of mitochondrial DNA in bivalves. In: Pontarotti P (ed) Evolutionary Biology鈥攁 Transdisciplinary Approach. Springer Nature Switzerland AG, Switzerland
Capt C., Bouvet K., Guerra D., Robicheau BM,听Stewart D., Pante E., Breton S. 2020.听Unorthodox features in two venerid bivalves with doubly uniparental inheritance of mitochondria. Scientific Reports 10:1087.
Robicheau BM, Adams S., Provencher J., Robertson G., Mallory M., Walker AK. 2019.听Diversity and Keratin Degrading Ability of Fungi Isolated from Canadian Arctic Marine Bird Feathers.听Arctic 72 (4), 347-359.
Chase E., Robicheau BM, Hoeh W.R., Harris J., Stewart D., Breton S. 2018.听The complete male-type mitochondrial genomes of the Fatmucket, Lampsilis siliquoidea, and the endangered Arkansas Fatmucket, Lampsilis powellii. Mitochondrial DNA Part B. 4.听
Robicheau BM, Chase E., R. Hoeh W., Harris J., Stewart D., Breton S. 2018. Evaluating the utility of the female-specific mitochondrial f-orf gene for population genetic, phylogeographic and systematic studies in freshwater mussels (Bivalvia: Unionida). PeerJ. 6(2).
Moland S., Robicheau BM, Browne R., Newell R., Walker A. 2018.听Determining the effects of biochar and an arbuscular mycorrhizal inoculant on the growth of fowl mannagrass (Glyceria striata) (Poaceae). Facets. 3.
Chase E., Robicheau BM, Breton S., Stewart D. 2018.听The complete mitochondrial genome of the hermaphroditic freshwater mussel Anodonta cygnea (Bivalvia: Unionidae): In silico analyses of sex-specific ORFs across order Unionoida. BMC Genomics. 19(19).
Stewart D., Sinclair-Waters M., Rice A., Bunker R., Robicheau BM, Breton S. 2018.听Distribution and frequency of mitochondrial DNA polymorphisms in Blue Mussel (Mytilus edulis) populations of southwestern Nova Scotia (Canada). Canadian Journal of Zoology. 96(6).听
Robicheau BM, Bunbury-Blanchette A., Laubutti K., Grigoriev Igor., Walker A. 2017.听The homothallic mating-type locus of the conifer needle endophyte Phialocephala scopiformis DAOMC 229536 (Order Helotiales). Fungal Biology. 121(12).
Robicheau BM, Susko E., Harrigan A., Snyder M. 2017.听Ribosomal RNA Genes Contribute to the Formation of Pseudogenes and Junk DNA in the Human Genome. Genome Biology and Evolution. 9(2):380-397.听
Robicheau BM, Breton S., Stewart D. 2016.听Sequence motifs associated with paternal transmission of mitochondrial DNA in the horse mussel, Modiolus modiolus (Bivalvia: Mytilidae). Gene. 605.听
Robicheau BM, E. Powell A., Del Bel L., Breton S., Stewart D. 2016.听Evidence for extreme sequence divergence between the male- and female-transmitted mitochondrial genomes in the bivalve mollusc, Modiolus modiolus (Mytilidae). Journal of听Zoological Systematics and Evolutionary Research. 55(2).听
Robicheau BM, Young A., Labutti K., Grigoriev I., Walker A. 2016.听The complete mitochondrial genome of the conifer needle endophyte, Phialocephala scopiformis DAOMC 229536 confirms evolutionary division within the fungal Phialocephala fortinii s.l. 鈥� Acephala appalanata species complex. Fungal Biology. 121(3).
Salamone A., Robicheau BM, Walker A. 2016.听Fungal diversity of marine biofilms on artificial reefs in the north-central Gulf of Mexico. Botanica Marina. 59(5):291-305.听
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