One Thousand Plants Initiative†. In review. A Phylogenomic View of Evolutionary Complexity in Green Plants. Nature.  † This project was organized by J. Leebens-Mack and G. Wong with 191 other contributors including E. M. Sigel

Sigel, E. M., J. P. Der, M. D. Windham, and K. M. Pryer. In press. Invited article for genomics special issue: Expression level dominance and homeolog expression bias in recurrent origins of the allopolyploid fern Polypodium hesperium. American Fern Journal.

Cardinal-McTeague, W., K. Wurdack, E. Sigel, and L. Gillespie. 2019. Seed size evolution and biogeography of Plukenetia (Euphorbiaceae), a pantropical genus with traditionally cultivated oilseed species. BMC Evolutionary Biology. PDF Reprint

Sigel, E. M., E. Schuettpelz, K. M. Pryer, and J. P. Der. 2018. Overlapping patterns of gene expression between gametophyte and sporophyte phases in the fern Polypodium amorphum (Polypodiales). Frontiers in Plant Sciences 9: 1450. PDF Reprint

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Li, F.W., P. Brouwer, L. Carretero-Paulet, S. Cheng, J. De Vries, P. M. Delaux, A. Eily, N. Koppers, L.Y. Kuo, Z. Li, M. Simenc...E.M.Sigel...and K.M. Pryer 2018. Fern genomes elucidate land plant evolution and cyanobacterial symbioses. Nature Plants 4: 460. †Cover article. PDF Reprint

Grusz*, A. L., E. M. Sigel*, and C. Witherup. 2017. Invited article for 25th anniversary edition: Homeologous chromosome pairing across the eukaryote phylogeny. Molecular Phylogenetics and Evolution 117: 83–94. *signifies co-first authors PDF Reprint

The Pteridophyte Phylogeny Group†. 2016. A community-derived classification for extant lycophytes and ferns. Journal of Systematics and Evolution 54: 563–603.  † This project was organized by E. Schuettpelz and H. Schneider with 92 other contributors including E. M. Sigel. PDF Reprint

Sigel, E. M. 2016. Invited article for special issue on the Systematics and Evolution of Lycophytes and Ferns: Genetic and genomic aspects of hybridization in ferns. Journal of Systematics and Evolution 54: 638–655. PDF Reprint

Windham, M. D., J. B. Beck, F.-W. Li, L. Allphin, J. G. Carman, D. A. Sherwood, C. A. Rushworth, E. M. Sigel, P. J. Alexander, C. D. Bailey, and I. A. Al-Shehbaz. 2015. Searching for diamonds in the apomictic rough: case study involving Boechera lignifera (Brassicacaeae). Systematic Botany 40: 1031- 1044. PDF Reprint

Wolf, P. G., E. B. Sessa, D. B. Marchant, F.-W. Li, C. J. Rothfels, E. M. Sigel, M. A. Gitzendanner, C. J. Visger, J. A. Banks, D. E. Soltis, P. S. Soltis, K. M. Pryer, and J. P. Der. In press. An exploration into fern genome space. Genome Biology and Evolution 7: 2533-2544. PDF Reprint

Rothfels, C. J.,  F.-W. Li, E. M. Sigel, L. Huiet, A. Larsson, D. O. Burge, M. Ruhsam, M. Deyholos, D. E. Soltis, C. N. Stewart, Jr., S. W. Shaw, L. Pokorny, T. Chen, C. W. dePamphilis, L. DeGironimo, L. Chen, X. Wei, X. Sun, D. W. Stevenson, S. W. Graham, G. K.-S. Wong, and K. M. Pryer.  2015. Curated phylogenomics: The evolutionary history of ferns inferred from 25 single-copy nuclear genes. American Journal of Botany 102: 1–19.  PDF Reprint

Sigel, E. M., M. D. Windham, and K. M. Pryer. 2014. Evidence for reciprocal origins in Polypodium hesperium (Polypodiaceae): a fern model system for investigating how multiple origins shape allopolyploid genomes. American Journal of Botany 101: 1476–1485. PDF Reprint

Sigel, E. M., M. D. Windham, C. Haufler, and K. M. Pryer. 2014. Phylogeny, divergence time estimates, and phylogeography for the diploid species of the Polypodium vulgare complex (Polypodiaceae). Systematic Botany 39: 1042–1055. PDF Reprint

Sigel, E. M., A. K. Johnson, and C. H. Haufler. 2014. A first record of Polypodium saximontanum for the flora of Montana. American Fern Journal 104.1: 22–23. PDF Reprint

Sigel, E. M., M. D. Windham, A. R. Smith, R. J. Dyer, and K. M. Pryer. 2014. Rediscovery of Polypodium calirhiza (Polypodiaceae) in Mexico. Brittonia 63: 278–286. PDF Reprint

Li, F.-W., J. C. Villarreal, S. Kelly, C. J. Rothfels, M. Melkonian, E. Frangedakis, M. Ruhsam, E. M. Sigel, J. P. Der, J. Pittermann, D. O. Burge, L. Pokorny, A. Larsson, T. Chen, S. Weststrand, P. Thomas, E. Carpenter, Y. Zhang, Z. Tian, L. Chen, Z. Yan, Y. Zhu, X. Sun, J. Wang, D. W. Stevenson, B. J. Crandall-Stotler, A. J. Shaw, M. K. Deyholos, D. E. Soltis, S. W. Graham, M. D. Windham, J. A. Langdale, G. K.-S. Wong, S. Mathews, and K. M. Pryer. Horizontal transfer of an adaptive chimeric photoreceptor from bryophytes to ferns. 2014. Proceedings of the National Academy of Sciences of the United States of America 111: 6672–6677. PDF Reprint

Sessa, E. B., J. A. Banks, M. S. Barker, J. P. Der, A. M. Duffy, S. W. Graham, M. Hasebe, J. Langdale, F.-W. Li, D. B. Marchant, K. M. Pryer, C. J. Rothfels, S. J. Roux, M. L. Salmi, E. M. Sigel, D. E. Soltis, P. S. Soltis, D. W. Stevenson, and P. G. Wolf. 2014. Between two fern genomes. GigaScience 3: 15. PDF Reprint

Floyd, S.K., J. G. Ryan, S. J. Conway, E. Brenner, K. P. Burris, J. N. Burris, T. Chen, P. P. Edger, S. W. Graham, J. H. Leebens-Mack, J. C. Pires, C. J. Rothfels, E. M. Sigel, D. W. Stevenson, C. N. Stewart, G. K,-S. Wong, and J. L. Bowman. 2014. Origin of a novel regulatory module by duplication and degeneration of an ancient plant transcription factor. Molecular Phylogenetics and Evolution 81: 159–173. PDF Reprint

Rothfels, C. J., A. Larsson, F.- W. Li, E. M. Sigel, L. Huiet, D. O. Burge, M. Ruhsam, S. Graham, D. Stevenson, G. K.-S. Wong, P. Korall, and K. M. Pryer. 2013. Transcriptome-mining for Fern Single-copy Nuclear Regions. PLoS One 8:e76957. PDF Reprint

Rothfels, C. J., E. M. Sigel, and M. D. Windham. 2012. Cheilanthes feei T. Moore (Pteridaceae) and Dryopteris erythrosora (D.C. Eaton) Kunze (Dryopteridaceae) new for the flora of North Carolina. American Fern Journal 102: 184–186. PDF Reprint

Sigel, E. M., M. D. Windham, L. Huiet, G. Yatskievych, and K. M. Pryer. 2011. Species relationships and farina evolution in the cheilanthoid fern genus  Argyrochosma (Pteridaceae). Systematic Botany 36(4): 554–564. PDF Reprint