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(September 2012)
TODD C. LAJEUNESSE
Pennsylvania State University
208 Mueller Laboratory
University Park, PA 16802
Phone: 814-863-2038
Email: [email protected]
Education
Cornell University
University of California, Santa Barbara
(Dissertation advisor: Robert K. Trench)
B.S. 1991
Ph.D. 2000
Biology
Biology
Research and Professional Experience
2008-present
Assistant Professor. Pennsylvania State University, Department of
Biology, University Park, PA
2004-2007
Assistant Professor. Florida International University, Department of
Biology, Marine Sciences Program. Miami, FL.
2000-2004
Postdoctoral Fellow. University of Georgia, Department of Plant Biology
and the Institute of Ecology. Athens, GA. William K. Fitt and Gregory
Schmidt (co-advisors).
Jun-Jul 2002 Visiting Faculty. University of Hawaii, Edwin Pauley Summer Program,
Hawaiian Institute of Marine Biology. Oahu, HI.
1995-2000
Graduate Student and Teaching Assistant. Department of Marine Biology
University of California, Santa Barbara, CA.
1993-1994
Laboratory Manager. Ocean Process Analysis Laboratory, University of
New Hampshire, Durham, NH. Zooplankton population genetics and
biogeography.
1992-1993
Research Associate. Bigelow Laboratory for Ocean Sciences, West
Boothbay Harbor, ME. Phytoplankton ultrastructure and molecular
phylogenetics.
1991-1992
Marine Resource and Environmental Consultant. Intertide Corp.,
Harpswell, ME. Natural resource monitoring and conservation; and
mariculture environmental impact assessments
LaJeunesse
Invited Lectures (2001-present)
2012 Auburn University (Auburn)
2012 West Virginia University (Morgantown)
2012 Rutgers University (New Brunswick)
2011 Harvard University (Boston)
2011 King Abdullah University of Science and Technology (Saudi Arabia)
2011 Temple University (Philadelphia)
2010 University of Louisiana at Lafayette
2009 State University of New York at Buffalo
2009 International Symbiosis Society Congress, Madison, WI
2009 Biodiversity Research Centre Academia Sinica, TAIWAN
2007 NSF Symbiosis Cell Biology Workshop, Heron Island, Australia
2007 Smithsonian Marine Station (Ft. Pierce)
2006 International Symbiosis Society Congress, Vienna, Austria
2006 University of Mississippi, (Oxford)
2006 University of South Florida (St. Petersburg)
2006 III Congresso Mexicano de Arecifes de Coral, Cancun MX
2003 U.S. Environmental Protection Agency (Gulf Breeze, FL)
2003 University of Queensland (Brisbane, Australia)
2003 Australian Institute of Marine Sciences (Townsville, Australia).
2003 University of Georgia (Athens)
2002 UNESCO working group on coral bleaching, Heron Island, Australia.
2001 College of Charleston (South Carolina)
Research Funding (LaJeunesse is PI unless otherwise noted)
2013-2013
U.S. National Science Foundation. Division of Integrative Organismal
Systems (IOS). “Collaborative Research: The physiology and ecology of
widespread “stress-tolerant” coral endosymbionts: coral “saviors” or
opportunistic invaders? $1,121,754 (495,597 to LaJeunesse)
2012-2014
Penn State HUCK “Metabolism in basal multicellular marine organisms”
$45,000 (co-PI with James Marden)
2009-2013
U.S. National Science Foundation. Division of Ocean Sciences (OCE).
Investigating the Fundamental Units of Natural Selection Among CoralAlgal Symbioses: Ecological, Geographic, and Physiological Diversity of
Host-Symbiont Genotypes. OCE 0928764. $612,780
2007-2009
National Institutes of Health. ARCH Pilot Project, " Metabolic
Characterization of Florida Kerenia brevis Blooms and Toxin Production."
$125,000
2006-2009
U.S. National Science Foundation. IOB Program “Collaborative Research:
Establishing the flexibility & Physiology of Symbiodinium Symbioses in the
Eastern Pacific: Predicting Ecological Success in Light of Future Climate
Change” NSF IOB 0544854. $232,225.00
2002-2007
U.S. National Science Foundation. OCE Division of Ocean Sciences and
GEO Directorate for geosciences. “Reef Corals: Symbiotic
Dinoflagellate/Host combinations and their physiological response to
environmental change” (NSF OCE 0137007, P.I.: W.K. Fitt and G.W.
Schmidt listed) $700,000.00.
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LaJeunesse
2002-2003
Smithsonian National Museum of Natural History, Caribbean Coral Reef
Ecosystem Program (CCRE). “The physiological ecology and taxonomic
diversity of symbiotic dinoflagellates in different environments.” (P.I.: M.
Warner and T.C. LaJeunesse) ~ $20,000.00.
1996-1997
Educational Improvement Grant, University of California, Santa Barbara.
$1,700.00.
Professional Societies
International Symbiosis Society
International Society for Reef Studies
Phycological Society of America
Professional Service
Editorial Board, Symbiosis (2007-present)
NSF review panel: Symbiosis, Defense and Self-recognition (2010)
NSF review panel: Biological Oceanography (2007)
Outside reviewer for articles submitted to Applied Environmental Microbiology,
Biological Bulletin, Coral Reefs, Functional Ecology, Global Change Biology
Journal of Phycology, Marine Biology, Marine Ecology Progress Series, Molecular
Ecology, Nature Climate Change, Oceanography and Limnology, Proceedings of
the National Academy of Science, Proceedings of the Royal Society London B,
Protist, Symbiosis
Teaching and Advising
Formal Courses taught at Florida International University
Evolutionary Biology
Invertebrate Zoology
Molecular Techniques in Ecology
Formal Courses taught at the Pennsylvania State University
Invertebrate Zoology
Freshman Seminar
Regular guest Lectures in Symbiosis, Coral reef systems, Science Diving
Postdoctoral Advising (Names, dates and current positions)
Eugenia Sampayo (2008-2010, Postdoctoral Research Fellow)
Graduate advising:
Drew F. Wham (current)
Allison Lewis (current)
Daniel T. Pettay (2011, Postdoctoral fellow, U. of Delaware)
Jorge H. Pinzón (2011, NSF postdoctoral fellow University of Texas, Arlington)
Robin T. Smith (2007, Postdoctoral fellow UNAM, Puerto Morelos, MX)
Host to international students and scholars:
Elisa Lopez Garcia (Universidad Nacional Autónoma de México, 2012)
Margaux Carmichael (Université de Bretagne Occidentale Brest, France)
Eulalia Banguera-Hinestroza (KAUST, Saudi Arabia, 2011)
Linda Tonk, (University of Queensland, 2009)
Saki Harii (Shizuoka University, Japan 2009)
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LaJeunesse
João Gama Monteiro (Portugal, University of the Azores, 2009-10)
Leonard J. Chauka (Tanzania, University of Dar es Salaam, 2009)
Service, The Pennsylvania State University (2008-present)
Department of Biology
Chair: Graduate Student Search and Recruiting Committee 2010-present
Climate & Diversity committee 2008- present
Environmental Stewardship Committee 2009-present
Interdepartmental Program Membership
Ecology
Cell and Developmental Biology
Honors and Awards
1999-2000
1999
1995-1996
The Charles A. Storke II Graduate Fellowship Dissertation Award in
Ecology, Evolution and Marine Biology, The University of California, Santa
Barbara, CA.
Departmental Regents Fellowship, The University of California, Santa
Barbara, CA.
Tuition Fellowship, Department of Ecology, Evolution and Marine Biology,
The University of California, Santa Barbara, CA.
Extramural Activities and Hobbies
Distance running and road racing (Marathons: Los Angeles, Marine Corps, Boston)
Cultivating rare and unusual succulent plants and vines
Pen and ink drawing, watercolor painting, pottery, and wood-working
Father to Clarisse (3 years) and Camille (1 year).
Scientific Publications In Reverse Chronological Order (54 total)
Wham DC, Carmichael M, Reimer JD, LaJeunesse TC (2013) Eight polymorphic
microsatellite loci for the Indo-Pacific-wide zoanthid, Zoanthus sansibaricus.
Marine Biodiversity
Pinzón JH, Sampayo E, Cox E, Chauka L, Chen CA, Voolstra C, LaJeunesse TC
(2013) Blind to morphology: genetics identify several widespread ecologically
common species and few endemics among Indo-Pacific cauliflower corals
(Pocillopora, Scleractinia). J Biogeography
2012
LaJeunesse TC, Parkinson JE, Reimer JD (2012) A genetics-based description of
Symbiodinium minutum sp. nov. and S. psygmophilum sp. nov. (Dinophyceae),
two dinoflagellates symbiotic with Cnidaria. J Phycology, 48:1380-1391
McGinley MP, Aschaffenburg MD, Pettay DT, Smith RT, LaJeunesse TC, Warner ME
(2012) Feature article: Symbiodinium spp. in colonies of eastern Pacific
Pocillopora spp. are highly stable despite the prevalence of low-abundance
background populations. Marine Ecology Progress Series 462:1-7.
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McGinley MP, Aschaffenburg MD, Smith RT, Pettay DT, LaJeunesse TC, Warner ME
(2012) Transcriptional response of two core photosystem genes in Symbiodinium
spp. exposed to thermal stress. PLoS One 7:e50439
Pinzón JH, Baums IB, Reyes-Bonilla H, LaJeunesse TC (2012) Contrasting clonal
structure among Pocillopora (Scleractinia) communities at two environmentally
distinct sites in the Gulf of California. Coral Reefs 31:765-777
2011
LaJeunesse TC, Thornhill DJ (2011) Improved resolution of reef-coral endosymbiont
(Symbiodinium) species diversity, ecology, and evolution through psbA non-coding
region genotyping. PloS One 6:e29013
Pettay DT, Wham DC, Pinzón JH, LaJeunesse TC (2011) Genotypic diversity and
spatial–temporal distribution of Symbiodinium clones in an abundant reef coral.
Mol Ecol 20: 5197-5212
Pinzón JH, Devlin-Durante MK, Weber XM, Baums IB, LaJeunesse TC (2011)
Microsatellite loci for Symbiodinium A3 (S. fitti) a common algal symbiont among
Caribbean Acropora (stony corals) and Indo-Pacific giant clams (Tridacna).
Conservation Genetic Resources. 3: 45-47
Pinzón JH, LaJeunesse TC (2011) Species delimitation of common reef corals in the
genus Pocillopora using nucleotide sequence phylogenies, population genetics
and symbiosis ecology. Molecular Ecology. 20: 311-325
Thornhill DJ, Rotjan RD, Todd BD, Geoff GC, Iglesias-Prieto R, Kemp DW,
LaJeunesse TC, McCabe-Reynolds J, Schmidt GW, Shannon T, Warner ME, Fitt
WK (2011) A connection between colony biomass and death in Caribbean reefbuilding corals. PloSOne e29535
Silverstein RN, Correa AM, LaJeunesse TC, Baker AC (2011) Novel algal symbiont
(Symbiodinium spp.) diversity in reef corals of Western Australia. Mar Ecol Prog
Ser 422:63-75
Wham DC, Pettay DT, LaJeunesse TC (2011) Microsatellite loci for the hostgeneralist “zooxanthella” Symbiodinium trenchi and other Clade D Symbiodinium.
Conservation Genetic Resources 3:541-544
2010
Finney JC, Pettay T, Sampayo EM, Warner ME, Oxenford H, LaJeunesse TC (2010)
The relative significance of host-habitat, depth, and geography on the ecology,
endemism and speciation of coral endosymbionts. Microbial Ecology 60: 250-263.
LaJeunesse TC, Fitt WK, Schmidt GW (2010) The reticulated chloroplasts of
zooxanthellae (Symbiodinium) and differences in chlorophyll localization among
life cycle stages. Coral Reefs 29: 627
LaJeunesse TC, Pettay T, Sampayo EM, Phongsuwan N, Brown B, Obura D, HoeghGuldberg O, Fitt WK (2010) Special Paper: Long-standing environmental
conditions, geographic isolation and host–symbiont specificity influence the
relative ecological dominance and genetic diversification of coral endosymbionts in
the genus Symbiodinium. J Biogeography 37: 785-800.
LaJeunesse TC, Smith R, Walther M, Pinzón JH, Pettay T, McGinley M,
Aschaffenburg M, Medina-Rosas P, Cupul-Magana AL, Perez A L, Reyes-Bonilla
H, Warner ME (2010) Host-symbiont recombination vs. natural selection in the
response of coral-dinoflagellate symbioses to environmental disturbance. Proc
Royal Soc B 277: 2925-2934.
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LaJeunesse
2009
LaJeunesse TC, Loh W, Trench RK (2009) Do Introduced endosymbiotic
dinoflagellates ‘take’ to new hosts? Biol Invasions 11: 995-1003
LaJeunesse TC, Finney JC, Smith R, Oxenford H (2009) Outbreak and persistence
of opportunistic symbiotic dinoflagellates during the 2005 Caribbean mass coral
‘bleaching’ event. Proc. Roy Soc Lond, B 276: 4139-4148.
Pettay T, LaJeunesse TC (2009) Microsatellite loci for assessing genetic diversity,
dispersal and clonality of coral symbionts in the 'stress-tolerant' Symbiodinium
Clade D Mol Ecol Resources 9, 1022-1025
Sampayo E, Dove S, LaJeunesse TC. (2009) Cohesive molecular genetic data
delineate species diversity in the dinoflagellate genus Symbiodinium. Mol Ecol
18:500-519
Smith R, Pinzón JH, LaJeunesse TC (2009) Symbiodinium (Dinophyta) diversity and
stability in aquarium corals. J. Phycol. 45: 1030-1036.
Stat M, Loh WKW, LaJeunesse TC, Hoegh-Guldberg O, Carter DA (2009) Coralendosymbiont stability following a natural bleaching event. Coral Reefs 28, 709713.
2008
Goulet TL, LaJeunesse TC, Fabricius K (2008) Symbiont specificity and bleaching
susceptibility among soft corals during the 1998 GBR mass coral bleaching event.
Mar Biol 154: 795-804
LaJeunesse TC, Reyes-Bonilla H, Warner ME, Wills M, Schmidt GW, Fitt WK (2008)
Specificity and stability in high latitude eastern Pacific coral-algal symbioses.
Limnol Oceanog 53: 719-727
Paz-Garcia DA, LaJeunesse TC, Chavez-Romo HE, Correa-Sandoval F, ReyesBonilla H (2008) Differences in the distribution of Symbiodinium spp. among
morphotypes and genotypes of Porites panamensis from the Gulf of California,
Mexico. Proc. 11th Int Coral Reef Symp 11: 164-167
2007-1999
Barneah O, Brickner I, Hooge M, Weis VM, LaJeunesse TC, Benayahu Y (2007)
Three party symbiosis: acoelomorph worms, corals and unicellular algal symbionts
in Eilat (Red Sea). Mar Bio 151:1215-1223
Hunter RL, LaJeunesse TC, Santos SR (2007) Structure and evolution of the rDNA
internal transcribed spacer (ITS) region 2 in the symbiotic dinoflagellates
(Symbiodinium, Dinophyta). J.of Phycol 43:120-128
LaJeunesse TC, Pinzón JH (2007) Screening intragenomic rDNA for dominant
variants can provide a consistent retrieval of evolutionarily persistent ITS (rDNA)
sequences. Molecular Phylogenetics and Evolution. 45:417-422
LaJeunesse TC, Reyes-Bonilla H, Warner ME (2007) Spring "bleaching" among
Pocillopora in the Sea of Cortez, Eastern Pacific. Coral Reefs 26:265-270
Pettay T, LaJeunesse TC (2007) Microsatellites from clade B Symbiodinium spp.
specialized for Caribbean corals in the Genus Madracis. Mol Ecol Notes 7:12711274
Thornhill DJ, LaJeunesse TC, Santos SR (2007) Measuring rDNA diversity in
eukaryotic microbial systems: How intragenomic variation, pseudogenes, and PCR
artifacts confound biodiversity estimates. Mol Ecol 16:5326-5340
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Banaszak AT, Santos MGB, LaJeunesse TC, Lesser MP (2006) The distribution of
mycosporine-like amino acids (MAAs) and the phylogenetic identity of symbiotic
dinoflagellates in cnidarian hosts from the Mexican Caribbean. J Exp Mar Biol Ecol
337:131-146
Kemp DW, Cook CB, LaJeunesse TC, Brooks WR (2006) A comparison of the
thermal bleaching responses of the zoanthid Palythoa caribaeorum from three
geographically different regions in south Florida. J Exp Mar Biol Ecol 335:226-276
Thornhill DJ, LaJeunesse TC, Kemp DW, Fitt WK, and GW Schmidt (2006a) Multiyear, seasonal genotypic surveys of coral-algal symbioses reveal prevalent
stability or post-bleaching reversion. Mar Biol 148:711-722
Thornhill DJ, Daniel MW, LaJeunesse TC, Schmidt GW, Fitt WK (2006b) Natural
infections of aposymbiotic Cassiopea xamachana scyphistomae from
environmental pools of Symbiodinium. J Exp Mar Biol Ecol 338:50-56
Warner ME, LaJeunesse TC, Robison JD, Thur RM (2006) The ecological distribution
and comparative photobiology of symbiotic dinoflagellates from reef corals in
Belize: Potential implications for coral bleaching. Limnol Oceanog 51:1887-1897
LaJeunesse TC (2005) “Species” radiations of symbiotic dinoflagellates in the Atlantic
and Indo-Pacific since the Miocene-Pliocene transition. Mol Biol Evol 22:570-581
LaJeunesse TC, Lambert G, Andersen RA, Coffroth MA, Galbraith DW (2005)
Symbiodinium (Pyrrhophyta) genome sizes (DNA content) are smallest among
dinoflagellates. J Phycol 41:880-886
LaJeunesse TC, Lee S, Bush S, Bruno JF (2005) Persistence of non-Caribbean algal
symbionts in Indo-Pacific mushroom corals released to Jamaica 35 years ago.
Coral Reefs 24:157-159
LaJeunesse TC, Bhagooli R, Hidaka M, Done T, deVantier L., Schmidt GW, Fitt WK,
Hoegh-Guldberg O (2004) Closely-related Symbiodinium spp. differ in relative
dominance within coral reef host communities across environmental, latitudinal,
and biogeographic gradients. Mar Ecol Prog Ser 284:147-161
LaJeunesse TC, Thornhill DJ, Cox E, Stanton F, Fitt WK, Schmidt GW (2004) High
diversity and host specificity observed among symbiotic dinoflagellates in reef
coral communities from Hawaii. Coral Reefs 23:596-603
Pochon X, LaJeunesse TC, Pawlowski J (2004) Biogeographic partitioning and host
specialization among foraminiferan dinoflagellate symbionts (Symbiodinium,
Dinophyta). Mar Biol 146:17-27
Iglesias-Prieto R, Beltrán VH, LaJeunesse TC, Reyes-Bonilla H, Thomé PE (2004)
Different algal symbionts explain the vertical distribution of dominant reef corals in
the eastern Pacific. Proc R Soc Lond B 271:1757-1763
LaJeunesse TC, Loh WKW, van Woesik R, Hoegh-Guldberg O, Schmidt GW, Fitt WK
(2003) Low symbiont diversity in southern Great Barrier Reef corals relative to
those of the Caribbean. Limnol Oceanogr 48:2046-2054
LaJeunesse TC (2002) Diversity and community structure of symbiotic dinoflagellates
from Caribbean coral reefs. Mar Biol 141:387-400
LaJeunesse TC (2001) Investigating the biodiversity, ecology, and phylogeny of
endosymbiotic dinoflagellates in the genus Symbiodinium using the ITS region: In
search of a “species” level marker. J Phycol 37:866-880
LaJeunesse TC, Trench RK (2000) The biogeography of two species of
Symbiodinium (Freudenthal) inhabiting the intertidal sea anemone, Anthopleura
elegantissima (Brandt). Biol Bull 199:126-134
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Banaszak AT, LaJeunesse TC, Trench RK (2000) Synthesis of MAA by symbiotic
dinoflagellates in culture. J Exp Mar Biol Ecol 249: 219-233
Andersen RA, Van de Peer Y., Potter D, Sexton JP, Kawachi M, LaJeunesse TC
(1999) Phylogenetic analysis of the SSU rRNA from members of the
Chrysophyceae. Protist 150:71-84
Potter D, LaJeunesse TC, Saunders GW, Anderson RA (1997) Convergent evolution
masks extensive biodiversity among marine coccoid picoplankton. Biodivers
Conserv 6:99-107
Bucklin A, LaJeunesse TC, Curry E, Wallinga J, Garrison K (1996) Molecular diversity
of the copepod, Nannocalanus minor: genetic evidence of species and population
structure in the North Atlantic ocean. J Mar Res 54: 285-310
Bucklin A, LaJeunesse TC (1994) Molecular genetic variation of Calanus pacificus
(Copepoda: Calanoida): Preliminary evaluation of genetic structure and
subspecific differentiation based on mtDNA sequences. Calif Coop Ocean Fish
Invest Rep 35:45-51
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