Juan Carlos Villarreal
Regular member
Department of Biology
Laval University


Dennis Escolástico Ortiz (Ph.D. student)

Laura Hjartarson (Master student)

Recent Theses and Dissertations

Catherine Chagnon (Master - 2020)
Abundance and diversity of lichen species in Nunavik in the context of climate change

Scientific Communications

Escolástico Ortiz, D.A., Blasi, C., Bellenger, J.-P., Derome, N., Villarreal, J., 2023. Differentially abundant bacteria drive the N2-fixation of a widespread moss in the forest-tundra transition zone. A COMPLETER, 90(2): 193-211. DOI: 10.1007/s13199-023-00930-y.

Escolástico Ortiz, D.A., Hedenäs, L., Quandt, D., Harpke, D., Larraín, J., Stech, M., Villarreal, J., 2023. Cryptic speciation shapes the biogeographic history of a northern distributed moss. Botanical Journal of the Linnean Society, 201(1): 114-134, boac027. DOI: 10.1093/botlinnean/boac027.

Alonso García, M., Pino-Bodas, R., Villarreal, J., 2022. Co-dispersal of symbionts in the lichen Cladonia stellaris inferred from genomic data. Fungal Ecology, 60, 101165. DOI: 10.1016/j.funeco.2022.101165.

Alonso García, M., Villarreal, J., 2022. Bacterial community of reindeer lichens differs between northern and southern lichen woodlands. Canadian Journal of Forest Research, 52(5): 662-673. DOI: 10.1139/cjfr-2021-0272.

Bell-Doyon, P., Bellavance, V., Bélanger, L., Mazerolle, M.J., Villarreal, J., 2022. Bacterial, fungal, and mycorrhizal communities in the soil differ between clearcuts and insect outbreaks in the boreal forest 50 years after disturbance. Forest Ecology and Management, 523, 120493. DOI: 10.1016/j.foreco.2022.120493.

Patiño, J., Bisang, I., Goffinet, B., Hedenäs, L., McDaniel, S., Pressel, S., Stech, M., Ah-Peng, C., Bergamini, A., Caners, R.T., Cargill, D.C., Cronberg, N., Duckett, J., Eppley, S., Fenton, N., Fisher, K., González-Mancebo, J., Hasebe, M., Heinrichs, J., Hylander, K., Ignatov, M.S., Martínez-Abaigar, J., Medina, N.G., Medina, R., Quandt, D., Rensing, S.A., Renzaglia, K., Renner, M., Ros, R.M., Schäfer-Verwimp, A., Villarreal, J., Vanderpoorten, A., 2022. Unveiling the nature of a miniature world: a horizon scan of fundamental questions in bryology. Journal of Bryology, 44(1): 1-34. DOI: 10.1080/03736687.2022.2054615.

Alonso García, M., Grewe, F., Payette, S., Villarreal, J., 2021. Population genomics of a reindeer lichen species from North American lichen woodlands. American Journal of Botany, 108(1): 159-171. DOI: 10.1002/ajb2.1601.

Bell, D., Lin, Q., Gerelle, W.K., Joya, S., Chang, Y., Taylor, Z.BN, Rothfels, C.J., Larsson, A., Villarreal, J., Li, F.-W., Pokorny, L., Szövényi, P., Crandall-Stotler, B., DeGironimo, L., Floyd, S.K., Beerling, D.J., Deyholos, M.K., von Konrat, M., Shaw, A.J., Chen, T., Wong, G.K.-S., Stevenson, D.W., Palmer, J.D., Graham, S.W., 2020. Organellomic data sets confirm a cryptic consensus on (unrooted) land-plant relationships and provide new insights into bryophyte molecular evolution. American Journal of Botany, 107(1): 91-115. DOI: 10.1002/ajb2.1397.

Bell-Doyon, P., Laroche, J., Saltonstall, K., Villarreal, J., 2020. Specialized bacteriome uncovered in the coralloid roots of the epiphytic gymnosperm, Zamia pseudoparasitica. Environmental DNA, 2(4): 418-428. DOI: 10.1002/edn3.66.

Garrido, A., Gudino Ledezma, J., Durant-Archibold, A.A., Salazar Allen, N., Villarreal, J., Gupta, M.P., 2019. Chemical profiling of volatile components of the gametophyte and sporophyte stages of the hornwort Leiosporoceros dussii (Leiosporocerotaceae) from Panama by HS-SPME-GC-MS. Natural Product Communications, 14(8), 1934-578. DOI: 10.1177/1934578X19868875.

Nelson, J.M., Hauser, D.A., Gudino, J.A., Guadalupe, Y.A., Meeks, J.C., Salazar Allen, N., Villarreal, J., Li,.-W., 2019. Complete genomes of symbiotic cyanobacteria clarify the evolution of Vanadium-nitrogenase. Genome Biology and Evolution, 11(7): 1959–1964. DOI: 10.1093/gbe/evz137.

Peñaloza-Bojacá, G.F., Villarreal, J., Maciel-Silva, A.S., 2019. Phylogenetic and morphological infrageneric classification of the genus Dendroceros (Dendrocerotaceae; Anthocerotophyta), with the addition of two new subgenera. Systematics and Biodiversity, 17(7): 712-727. DOI: 10.1080/14772000.2019.1682080.

Villarreal, J., 2019. Symbiosis between cyanobacteria and tropical plants. Smithsonian Tropical Research Institute. Panama, Panama.

Lang, D., Ullrich, K.K., Murat, F., Fuchs, J., Jenkins, J., Haas, F.B., Piednoel, M., Gundlach, H., Van Bel, M., Meyberg, R., Vives, C., Morata, J., Symeonidi, A., Hiss, M., Muchero, W., Kamisugi, Y., Saleh, O., Blanc, G., Decker, E.L., van Gessel, N., Grimwood, J., Hayes, R.D., Graham, S.W., Gunter, L.E., McDaniel, S.F., Hoernstein, S.N.W., Larsson, A., Li, F.-W., Perroud, P., Phillips, J., Ranjan, P., Rokshar, D.S., Rothfels, C.J., Schneider, L., Shu, S., Stevenson, D.W., Thümmler, F., Tillich, M., Villarreal, J., Widiez, T., Wong, G.K.-S., Wymore, A., Zhang, Y., Zimmer, A.D., Quatrano, R.S., Mayer, K.F.X., Goodstein, D., Casacuberta, J.M., Vandepoele, K., Reski, R., Cuming, A.C., Tuskan, G.A., Maumus, F., Salse,., Schmutz, J., Rensing, S.A., 2018. The Physcomitrella patens chromosome‐scale assembly reveals moss genome structure and evolution. the plant journal, 93(3): 515-533. DOI: 10.1111/tpj.13801 .

Lavoie, C., Beaulieu, M.-È., Villarreal, J., 2018. La nitrogénase nordique du lichen des neiges. Journée de la recherche en biologie des étudiants du baccalauréat, Université Laval. Québec, Québec, Canada.

Lavoie, C., Picard, A., Gagnon, J., Villarreal, J., 2018. Une histoire de fidelité chez les lichens: diversitée et recrutement des symbiontes associées au lichen Stereocaulon spp. Journée de la recherche en biologie des étudiants du baccalauréat, Université Laval. Québec, Québec, Canada.

Villarreal, J., 2018. Symbiosis in plants and lichens: A contrast between arctic and tropical ecosystems. A. Watson Armour III Research Seminar Series. Chicago, Illinois, États-Unis.

Villarreal, J., 2018. Symbiosis in plants and lichens: A contrast within arctic and tropical ecosystems. A. Watson Armour III Research Seminar Series, The Field Museum. Chicago, Illinois.

Villarreal, J., Turmel, M., Bourgouin-Couture, M., Laroche, J., Salazar Allen, N., Li,.-W., Cheng, S., Renzaglia, K., Lemieux, C., 2018. Genome-wide organellar analyses from the hornwort Leiosporoceros dussii show low frequency of RNA editing. PLoS one, 13(8), e0200491. DOI: 10.1371/journal. pone.0200491.

Bojacá, G.F.P., Maciel-Silva, A.S., Oliveira, B.A., Araújo, C.A.T., Fantecelle, L.B., Villarreal, J., 2017. Flora do Brasil 2020: Anthocerotophyta - Compilação monográfica das espécies de antóceros registradas no Brasil. 41 pages. DOI: 10.13140/RG.2.2.29844.50563.

Lewis, L.R., Ickert-Bond, S.M., Biersma, E.M., Convey, P.R., Goffinet, B., Hassel, K., Kruijer, H.J.D., La Farge, C., Metzgar, J., Stech, M., Villarreal, J., McDaniel, S.F., 2017. Future directions and priorities for arctic bryophyte research. Arctic Science, 3(3): 475-497. DOI: 10.1139/as-2016-0043.

Li, F.-W., Villarreal, J., Szövényi, P., 2017. Hornworts: an overlooked window into carbon-concentrating mechanisms. Trends in Plant Science, 22(4): P275-277. DOI: 10.1016/j.tplants.2017.02.002.

Renzaglia, K.S., Villarreal, J., Piatkowski, B.T., Lucas, J.R., Merced, A., 2017. Hornwort stomata: Architecture and fate shared with 400 million year old fossil plants without leaves. Plant Physiology, 174: 788-797. DOI: 10.1104/pp.17.00156.

Villarreal, J., 2017. From the tropics to the arctic: biodiversity and plant-cyanobacterial symbiosis. Université de Montréal. Montréal, Québec.

Villarreal, J., 2017. Hornwort evolution: Sexual systems, clonality and spatial separation of sexes. Weekly seminar series, University of Alberta. Edmonton, Alberta.

Villarreal, J., Duckett, J.G., Pressel, S., 2017. Morphology, ultrastructure and phylogenetic affinities of the single-island endemic Anthoceros cristatus Steph. (Ascension Island). Journal of Bryology, 39(3): 226-234. DOI: 10.1080/03736687.2017.1302153.

Chantanaorrapint, S.J., Villarreal, J., 2016. Taxonomic notes on Phaeoceros himalayensis, with lectotypification of Anthoceros himalayensis. Phytotaxa, 231(2): 193-196. DOI: 10.11646/phytotaxa.231.2.9.

Long, D.G., Forrest, L.L., Villarreal, J., Crandall‐Stotler,.J., 2016. Taxonomic changes in Marchantiaceae, Corsiniaceae and Cleveaceae (Marchantiidae, Marchantiophyta). Phytotaxa, 252(1): 77-80. DOI: 10.11646/phytotaxa.252.1.9.

Long, D.G., Forrest, L.L., Villarreal, J., Crandall‐Stotler,.J., 2016. The genus Aitchisoniella Kashyap (Marchantiopsida, Cleveaceae) new to China, and its taxonomic placement. Journal of Bryology, 38(4): 308-311. DOI: 10.1080/03736687.2016.1183072.

Söderström, L., Hagborg, A., von Konrat, M., Bartholomew-Began, S., Bell, D., Briscoe, L., Brown, E., Cargill, D.C., Costa, D.P., Crandall-Stotler, B.J., Cooper, E.D., Dauphin, G., Engel, J.J., Feldberg, K., Glenny, D., Gradstein, S.R., He, X., Heinrichs, J., Hentschel, J., Ilkiu-Borges, A.L., Katagiri, T., Konstantinova, N.A., Larraín, J., Long, D.G., Nebel, M., Pócs, T., Puche, F., Reiner-Drehwald, E., Renner, M.A.M., Sass-Gyarmati, A., Schäfer-Verwimp, A., Segarra Moragues, J.G., Stotler, R.E., Sukkharak, P., Thiers, B.M., Uribe, J., Váňa, J., Villarreal, J., Wigginton, M., Zhang, L., Zhu, R.-L., 2016. World checklist of hornworts and liverworts. PhytoKeys, 59: 1-828. DOI: 10.3897/phytokeys.59.6261.

Villarreal, J., 2016. From the tropics to the arctic: biodiversity and plant-cyanobacterial symbiosis. Duke University. Durham, New Hampshire.

Villarreal, J., 2016. Perspectives à Laval: la recherche sur les plantes tropicales et les plantes tempérées-arctiques. Institut de biologie intégrative et des systèmes (IBIS), Université Laval. Québec, Québec.

Villarreal, J., Crandall‐Stotler,.J., Hart, M.L., Long, D.G., Forrest, L.L., 2016. Divergence times and the evolution of morphological complexity in an early land plant lineage (Marchantiopsida) with a slow molecular rate. New Phytologist, 209(4): 1734-1746. DOI: 10.1111/nph.13716.

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