Tsai, T., Diggle, P.K., Frye, H.A., Jones, C.S. In press. Contrasting lengths of Pelargonium floral nectar tubes result from late differences in rate and duration of growth. Annals of Botany.

Diggle, P.K. 2017. Careers beyond the Academy.  Plant Sciences Bulletin 63: 17-20.

Diggle, P.K. 2017. The American Journal of Botany in 2017: Let’s work together! American Journal of Botany 104: 3-4.

O’Meara, B.C., Smith, S.D., (10 other authors)…, Diggle, P.K. 2016.  Non-equilibrium dynamics and floral trait interactions shape extant angiosperm diversity. Proc. Royal Soc. B. 283: http://dx.doi.org/10.1098/rspb.2015.2304 link

Moczek, A.P,…., Diggle, P.K., …, Extavour, C.G. (23 authors). 2015. The significance and scope of evolutionary developmental biology: a vision for the 21st century. Evolution and Development 17: 198–219.

Diggle, P.K. 2015. On the nature of things. American Journal of Botany 102: 3-4.

Diggle, P.K. Metamers, Modules, and intra-individual variation in flower form and function. 2014. Philosophical Transactions of the Royal Society B. 369, doi10.1098/rstb.2013.0253. link

Baker, R.L., E. Scherbatskoy, C.R. Lay, and P.K. Diggle. 2014. Developmental plasticity of shoot architecture: morphological expression and ecologically relevant onset in locally adapted populations of Mimulus guttatus. International Journal of Plant Sciences 175: 59-69. link

Diggle, P.K. 2013. Learned Societies – Past, Present and Future? Presidential address to the Botanical Society of America. Plant Sciences Bulletin 59: 150-157.

Diggle, P.K. and J.S. Miller. 2013. Developmental plasticity, genetic assimilation, and the evolutionary diversification of sexual expression in Solanum. American Journal of Botany 100: 1050-1060.

Wu, C.C., P.K. Diggle, and W.E. Friedman. 2013. Kin recognition within a seed and the effect of genetic relatedness of an endosperm to its compatriot embryo on maize seed development. Proceedings of the National Academy of Sciences 110: 2217-2222. This paper was selected by the Faculty of 1000: http://f1000.com/prime/717973137.

Lay, C.R, Y.B Linhart, and P.K. Diggle. 2013. Variation among four populations of Erysimum capitatum in phenotype, pollination and herbivory over an elevational gradient. American Midland Naturalist 169: 259-273.

Baker, R.L., L.C. Hileman, and P.K. Diggle. 2012. Patterns of shoot architecture in locally adapted populations are linked to intraspecific differences in gene regulation. New Phytologist 196: 271-281. This paper was selected by the Faculty of 1000: http://f1000.com/prime/717953659.

Baker, R.L. and P.K. Diggle. 2011. Node-specific branching and heterochronic changes underlie population level differences in Mimulus guttatus (Phrymaceae) shoot architecture. American Journal of Botany 98: 1924-1934.

Diggle, P.K., V.S. Di Stilio, A.R. Gschwend, E.M. Golenberg, R.C. Moore, J.R.W. Russell, and J.P. Sinclair. 2011. Multiple developmental processes underlie sex differentiation in angiosperms. Trends in Genetics 27: 368-376.

Lay, C.R, Y.B Linhart, and P.K. Diggle. 2011. The good, the bad and the ugly: interactions of plants with pollinators and herbivores in space and time. Annals of Botany 108: 749-763.

Friedman, W.E. and P.K. Diggle. 2011. Charles Darwin and the origins of plant evolutionary developmental biology. Plant Cell 23: 1194-1207.

Wu, C.C., P.K. Diggle, and W.E. Friedman. 2011. Female gametophyte development and double fertilization in Balsas teosinte, Zea mays subsp. parviglumis (Poaceae). Sexual Plant Reproduction 24: 219-229.

Bissell, E.K. and P.K. Diggle.2010. Modular genetic architecture of floral morphology in Nicotiana: comparative phenotypic and quantitative genetic approaches to floral integration. Journal of Evolutionary Biology 23: 1744-1758.

Diggle, P.K. N.J. Abrahamson, R.L. Baker, M.G. Barnes, T.L.Koontz, C.R.Lay, J.S. Medeiros, J.L. Murgel, M.G.M. Shaner, H.L. Simpson, C.C. Wu, and D.L. Marshall. 2010. Dynamics of maternal and paternal effects on embryo and seed development in wild radish (Raphanus sativus). Annals of Botany 106: 309-319.

Friedman, W.E., S.C.H.Barrett, P.K. Diggle, V.F. Irish and L. Hufford. 2008. Whither plant evo-devo? Investigating the evolution of plant form: conceptual integration from the molecular to the ecological. New Phytologist 178: 468-471.

Bissell, E.K. and P.K. Diggle. 2008. Floral morphology in Nicotiana: architectural and temporal effects on phenotypic integration. International Journal of Plant Sciences 169: 225-240. link

Miller, J. S. and P.K. Diggle 2007. Correlated evolution of fruit size and sexual expression in andromonoecious Solanum sections Acanthophora and Lasiocarpa (Solanaceae). American Journal of Botany 94: 1706-1715.

Mitchell, CH. and P.K. Diggle. 2005. The evolution of unisexual flowers: morphological and functional convergence result from diverse developmental transitions. American Journal of Botany 92: 1068-1076. This paper was selected by the Faculty of 1000 as a must read: http://www.f1000biology.com/article/id/1007760/evaluation

Diggle, P.K. and J.S. Miller. 2004. Architectural effects mimic floral sexual dimorphism in Solanum (Solanaceae). American Journal of Botany 91: 2030-2040.

Diggle, P.K. 2003. Architectural effects on floral form and function: a review. In: T. Stuessy, E. Hörandl and V. Mayer (eds) Deep Morphology: Toward a Renaissance of Morphology in Plant Systematics. Koeltz, Königstein.

Meloche, C.G. and P.K. Diggle. 2003. The pattern of carbon allocation supporting growth of preformed shoot primordia in Acomastylis rossii. American Journal of Botany 90: 1313-1320.

Miller, J.S. and P.K. Diggle. 2003. Diversification of andromonoecy in Solanum section Lasiocarpa (Solanaceae): the roles of phenotypic plasticity and architecture. American Journal of Botany 90: 707-715.

Bechtold, H.A., T.A. Forbis, W.D. Bowman, and P.K. Diggle. 2002. Lack of reproductive plasticity in alpine Saxifraga rhomboidea Greene (Saxifragaceae). Nordic Journal of Botany 22: 361-368.

Diggle, P.K. 2002. A developmental morphologist’s perspective on plasticity. Evolutionary Ecology 16: 267-283. (Invited contribution).

Diggle, P.K., M.A. Meixner, A.B. Carroll, and C.F. Aschwanden. 2002. Barriers to sexual reproduction in Polygonum viviparum: a comparative developmental analysis of P. viviparum and P. bistortoides. Annals of Botany 89: 145-156.

Kuzma, J., P.K. Diggle, D. Heron, S. Strauss, D. Tomes and C-J. Tsai. 2002. Report from the lignin modification case study working group. Workshop on Criteria for Field-testing of Plants with Engineered Regulatory, Metabolic and Signaling Pathways. Sponsored by Information Systems for Biotechnology and USDA/APHIS.

Forbis, T.A. and P.K. Diggle. 2001. Sub-nivean embryo development in the alpine herb Caltha leptosepala (Ranunculaceae). Canadian Journal of Botany 79: 635-642.

Meloche, C.G. and P.K. Diggle. 2001. Preformation, architectural complexity and developmental flexibility in Acomastylis rossii (Rosaceae). American Journal of Botany 88: 980-992.

Marshall, D.L. and P.K. Diggle. 2001. Mechanisms of differential pollen donor performance in wild radish, Raphanus sativus (Brassicaceae). American Journal of Botany 88: 242-257.

Diggle, P.K. 2000. Creativity and Development. Review of The Art of Genes: How Organisms Make Themselves. Enrico Coen. 1999. Oxford University Press. American Journal of Botany 87: 597-600.

Diggle, P.K. 1999. The influence of development and architectural constraints on the evolution of flowering phenologies. International Journal of Plant Sciences 160: S123-S134.

Moody, A., P.K. Diggle, and D.A. Steingraber. 1999. Developmental analysis of the evolutionary origin of the vegetative propagule of Mimulus gemmiparus (Scrophulariaceae). American Journal of Botany 86: 1512-1522.

Diggle, P.K. and P.K. Endress. 1999. Symmetry in plants: an introduction. International Journal of Plant Sciences 160: S1-S2.

Diggle, P.K., S.S. Lower, and T.A. Ranker. 1998. Clonal diversity in alpine populations of Polygonum viviparum. International Journal of Plant Sciences 159: 606-615.

Gibson J.P, and P.K. Diggle. 1998. Flower development and male sterility in Ocotea tenera Mez & J.D. Smith ex Mez (Lauraceae): A gynodioecious tropical tree. International Journal of Plant Sciences 159: 405-417.

Diggle, P.K. 1997. Ontogenetic contingency and floral morphology: the effects of architecture and resource limitation. International Journal of Plant Sciences 158: S99-S107.

Hufford, L. and P.K. Diggle. 1997. Introduction to morphology and evolution of flowers. International Journal of Plant Sciences 158: S1-S2.

Aydelotte, A.R. and P.K. Diggle. 1997. Analysis of developmental preformation in the alpine herb, Caltha leptosepala. American Journal of Botany 84: 1648-1657.

Diggle, P.K. 1997. Extreme preformation in alpine Polygonum viviparum: an architectural and developmental analysis. American Journal of Botany 84: 154-169.

Gibson, J.P. and P.K. Diggle. 1997. Structural analysis of female and hermaphroditic flowers of a gynodioecious tree Ocotea tenera (Lauraceae). American Journal of Botany 84: 298-307.

Diggle, P.K. 1995. Architectural effects and the interpretation of patterns of fruit and seed development. Annual Review of Ecology and Systematics 26: 531-552.

Fenster, C.B., P.K. Diggle, S.C.H. Barrett, and K.R. Ritland. 1995. The genetics of floral development differentiating two species of Mimulus (Scrophulariaceae). Heredity 74: 258-266.

Diggle, P.K. 1994. The expression of andromonoecy in Solanum hirtum: phenotypic plasticity and ontogenetic contingency. American Journal of Botany 81: 1354-1365.

Diggle, P.K. 1993. Developmental plasticity, genetic variation and the evolution of andromonoecy. American Journal of Botany 80: 967-973.

Diggle, P.K. 1992. Development and the evolution of plant reproductive characters. In: R. Wyatt (ed.), Ecology and Evolution of Plant Reproduction: New Approaches. Chapman and Hall. New York. Pp 326-355.

Diggle, P.K. 1991. Labile sex expression in andromonoecious Solanum hirtum: floral morphogenesis and sex determination. American Journal of Botany 78: 377-393.

Diggle, P.K. 1991. Labile sex expression in andromonoecious Solanum hirtum: sources of variation in mature floral structure. Canadian Journal of Botany 69: 2033-2043.

Diggle, P.K. 1988. Sex expression in Solanum hirtum: an Overview. In: P.L. Leins, S.C. Tucker, and P.K. Endress (eds.), Aspects of Floral Development. E. Schweizerbartsche Verlagbuchhandlung, Stuttgart.

DeMason, D.A. and P.K. Diggle. 1984. The relationship between the primary thickening meristem and secondary thickening meristem in Yucca whipplei Torr. III. Observations from histochemistry and autoradiography. American Journal of Botany 71: 1260-1267.

Diggle, P.K. and D.A. DeMason. 1983. The relationship between the primary thickening meristem and secondary thickening meristem in Yucca whipplei Torr. I. Histology of the mature vegetative stem. American Journal of Botany 70: 1195-1204.

Diggle, P.K. and D.A. DeMason. 1983. The relationship between the primary thickening meristem and secondary thickening meristem in Yucca whipplei Torr. II. Ontogenetic relationship within the vegetative stem. American Journal of Botany 70: 1205-1216.