Stephen R Downie

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Stephen R Downie

Curator, University of Illinois Vascular Plant Herbarium

Personal profile

Education

B.Sc., 1982, University of Guelph, Ontario, Canada
Ph.D., 1988, University of Alberta, Canada
Postdoctoral positions: University of Michigan and Indiana University

Professional Information

Systematics and evolution of flowering plants, with emphasis on the family Apiaceae

The relationships among and within many families of flowering plants remain unclear. Reconstruction of phylogenies from molecular data is now routine in systematics and continues to provide valuable insight into evolutionary patterns and processes, and historical biogeography. We are using the record of molecular change contained within the chloroplast and nuclear genomes of plants, as well as morphological and fruit anatomical evidence, to trace evolutionary histories and elucidate patterns of phenotypic character evolution in the Apiaceae (or Umbelliferae, the carrot, celery or parsley family), a cosmopolitan group of ecological, economical, and pharmaceutical importance. Current research is focused on the perennial, endemic umbellifers of western North America, such as Cymopterus and Lomatium, with the goals of clarifying generic- and species-level boundaries, reconstructing a robust phylogeny, and producing a modern classification. Ongoing research on the phylogeny and biogeography of Apiaceae, using techniques ranging from herbarium-based studies to phylogenomic analyses, is international in scope, with extensive collaborations the world over.

Office Address

2090 Lincoln Hall
702 S Wright St
Urbana, IL 61801-3631

Office Phone

217-333-1350

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  • Circumscription of the East Asia clade (Apiaceae subfamily Apioideae) and the taxonomic placements of several problematic genera

    Zhou, J., Wang, X., Zhou, S., Niu, J., Yue, J., Liu, Z. & Downie, S. R., Mar 2024, In: Plant Diversity. 46, 2, p. 206-218 13 p.

    Research output: Contribution to journal › Article › peer-review

    Open Access

  • Phylogenomics and the rise of the angiosperms

    Zuntini, A. R., Carruthers, T., Maurin, O., Bailey, P. C., Leempoel, K., Brewer, G. E., Epitawalage, N., Françoso, E., Gallego-Paramo, B., McGinnie, C., Negrão, R., Roy, S. R., Simpson, L., Toledo Romero, E., Barber, V. M. A., Botigué, L., Clarkson, J. J., Cowan, R. S., Dodsworth, S. & Johnson, M. G. & 259 others, Kim, J. T., Pokorny, L., Wickett, N. J., Antar, G. M., DeBolt, L., Gutierrez, K., Hendriks, K. P., Hoewener, A., Hu, A. Q., Joyce, E. M., Kikuchi, I. A. B. S., Larridon, I., Larson, D. A., de Lírio, E. J., Liu, J. X., Malakasi, P., Przelomska, N. A. S., Shah, T., Viruel, J., Allnutt, T. R., Ameka, G. K., Andrew, R. L., Appelhans, M. S., Arista, M., Ariza, M. J., Arroyo, J., Arthan, W., Bachelier, J. B., Bailey, C. D., Barnes, H. F., Barrett, M. D., Barrett, R. L., Bayer, R. J., Bayly, M. J., Biffin, E., Biggs, N., Birch, J. L., Bogarín, D., Borosova, R., Bowles, A. M. C., Boyce, P. C., Bramley, G. L. C., Briggs, M., Broadhurst, L., Brown, G. K., Bruhl, J. J., Bruneau, A., Buerki, S., Burns, E., Byrne, M., Cable, S., Calladine, A., Callmander, M. W., Cano, Á., Cantrill, D. J., Cardinal-McTeague, W. M., Carlsen, M. M., Carruthers, A. J. A., de Castro Mateo, A., Chase, M. W., Chatrou, L. W., Cheek, M., Chen, S., Christenhusz, M. J. M., Christin, P. A., Clements, M. A., Coffey, S. C., Conran, J. G., Cornejo, X., Couvreur, T. L. P., Cowie, I. D., Csiba, L., Darbyshire, I., Davidse, G., Davies, N. M. J., Davis, A. P., van Dijk, K. J., Downie, S. R., Duretto, M. F., Duvall, M. R., Edwards, S. L., Eggli, U., Erkens, R. H. J., Escudero, M., de la Estrella, M., Fabriani, F., Fay, M. F., Ferreira, P. D. L., Ficinski, S. Z., Fowler, R. M., Frisby, S., Fu, L., Fulcher, T., Galbany-Casals, M., Gardner, E. M., German, D. A., Giaretta, A., Gibernau, M., Gillespie, L. J., González, C. C., Goyder, D. J., Graham, S. W., Grall, A., Green, L., Gunn, B. F., Gutiérrez, D. G., Hackel, J., Haevermans, T., Haigh, A., Hall, J. C., Hall, T., Harrison, M. J., Hatt, S. A., Hidalgo, O., Hodkinson, T. R., Holmes, G. D., Hopkins, H. C. F., Jackson, C. J., James, S. A., Jobson, R. W., Kadereit, G., Kahandawala, I. M., Kainulainen, K., Kato, M., Kellogg, E. A., King, G. J., Klejevskaja, B., Klitgaard, B. B., Klopper, R. R., Knapp, S., Koch, M. A., Leebens-Mack, J. H., Lens, F., Leon, C. J., Léveillé-Bourret, É., Lewis, G. P., Li, D. Z., Li, L., Liede-Schumann, S., Livshultz, T., Lorence, D., Lu, M., Lu-Irving, P., Luber, J., Lucas, E. J., Luján, M., Lum, M., Macfarlane, T. D., Magdalena, C., Mansano, V. F., Masters, L. E., Mayo, S. J., McColl, K., McDonnell, A. J., McDougall, A. E., McLay, T. G. B., McPherson, H., Meneses, R. I., Merckx, V. S. F. T., Michelangeli, F. A., Mitchell, J. D., Monro, A. K., Moore, M. J., Mueller, T. L., Mummenhoff, K., Munzinger, J., Muriel, P., Murphy, D. J., Nargar, K., Nauheimer, L., Nge, F. J., Nyffeler, R., Orejuela, A., Ortiz, E. M., Palazzesi, L., Peixoto, A. L., Pell, S. K., Pellicer, J., Penneys, D. S., Perez-Escobar, O. A., Persson, C., Pignal, M., Pillon, Y., Pirani, J. R., Plunkett, G. M., Powell, R. F., Prance, G. T., Puglisi, C., Qin, M., Rabeler, R. K., Rees, P. E. J., Renner, M., Roalson, E. H., Rodda, M., Rogers, Z. S., Rokni, S., Rutishauser, R., de Salas, M. F., Schaefer, H., Schley, R. J., Schmidt-Lebuhn, A., Shapcott, A., Al-Shehbaz, I., Shepherd, K. A., Simmons, M. P., Simões, A. O., Simões, A. R. G., Siros, M., Smidt, E. C., Smith, J. F., Snow, N., Soltis, D. E., Soltis, P. S., Soreng, R. J., Sothers, C. A., Starr, J. R., Stevens, P. F., Straub, S. C. K., Struwe, L., Taylor, J. M., Telford, I. R. H., Thornhill, A. H., Tooth, I., Trias-Blasi, A., Udovicic, F., Utteridge, T. M. A., Del Valle, J. C., Verboom, G. A., Vonow, H. P., Vorontsova, M. S., de Vos, J. M., Al-Wattar, N., Waycott, M., Welker, C. A. D., White, A. J., Wieringa, J. J., Williamson, L. T., Wilson, T. C., Wong, S. Y., Woods, L. A., Woods, R., Worboys, S., Xanthos, M., Yang, Y., Zhang, Y. X., Zhou, M. Y., Zmarzty, S., Zuloaga, F. O., Antonelli, A., Bellot, S., Crayn, D. M., Grace, O. M., Kersey, P. J., Leitch, I. J., Sauquet, H., Smith, S. A., Eiserhardt, W. L., Forest, F. & Baker, W. J., May 23 2024, In: Nature. 629, 8013, p. 843-850 8 p.

    Research output: Contribution to journal › Article › peer-review

    Open Access

  • A systematic study of North American Angelica species (Apiaceae) based on nrDNA ITS and cpDNA sequences and fruit morphology

    Liao, C. Y., Gao, Q., Katz-Downie, D. S. & Downie, S. R., Jul 2022, In: Journal of Systematics and Evolution. 60, 4, p. 789-808 20 p.

    Research output: Contribution to journal › Article › peer-review

  • Systematics of the Iranian genera Aphanopleura, Demavendia, Haussknechtia, Psammogeton, and Zeravschania (Apiaceae tribe Pimpinelleae)

    Mousavi, S. S., Mozaffarian, V., Mummenhoff, K., Downie, S. R. & Zarre, S., Feb 2022, In: Plant Systematics and Evolution. 308, 1, 2.

    Research output: Contribution to journal › Article › peer-review

  • The chloroplast genomes of Sanicula (Apiaceae): plastome structure, comparative analyses and phylogenetic relationships

    Yang, C., Yao, X. Y., Chen, Z. X., Downie, S. R. & Wang, Q. Z., Aug 2022, In: Nordic Journal of Botany. 2022, 8, e03549.

    Research output: Contribution to journal › Article › peer-review

View all 106 Research outputs