B.S. Michigan State University (1979)
M..S. Michigan State University (1982)
Ph.D. University of Florida (1987)
238 Winston Hall
Areas of Interest
Phylogenetic Systematics and Biogeography of Ericaceae (Rhododendron, Vaccinium and related tropical taxa, Gaultheria) and Polygonaceae (buckwheat family). Monographic, revisionary and floristic treatments in Ericaceae.
My general area of research interest is the phylogenetic relationships of flowering plants. In my lab we use molecular and morphological data to study the evolution of members of the blueberry family (Ericaceae) and more recently, the buckwheat family (Polygonaceae).
Our work on Ericaceae has led to the first modern classification of the family that integrates information from DNA sequence data, morphology and anatomy. Some of the major phylogenetic and biogeographical findings made in my lab include: determining the placement of the Australian heathers (formerly Epacridaceae) as sister to the blueberry and wintergreen groups within Ericaceae, the temperate origin of tropical Vaccinium and relatives, a new clade of Neotropical blueberries (Andean Clade) with a unique mycorrhizal association, the diversification of South African heathers (Erica) from northern European ancestors and a Laurasian origin for the Ericaceae.
The results of studies in the Polygonaceae show that this herbaceous group of plants has striking patterns of parallel evolution in floral and vegetative features including the reduction of leaves to minute bracts and shifts in floral symmetry from complex (the ancestral state in the family) to simple. Our studies in this group have also revealed more biodiversity within the woody tropical members of the family than previously known, with 2 new genera described, Salta and Magoniella. Using both molecular and morphology based analyses we have also developed the first modern (only monophyletic groups are named) classification of Polygonaceae, clarifying previously confused relationships.
At this time we are finishing a collaborative project on the wintergreen group (Gaultherieae) that includes the phylogeny and biogeography of several distinctive clades from the Old and New World tropics. The results of this study further support a Northern Hemisphere origin (Laurasia) for Ericaceae (tropical Gaultheria are derived from temperate ancestors) and highlight the role of hybridization as a factor in speciation in many of the Chinese species.
Most recently we are investigating the evolution of chloroplast genome structure in the Ericaceae and the order Ericales. We have begun a collaborative program that includes researchers from several universities and preliminary data shows major rearrangements in the plastid genome within Ericaceae.
Students interested in Master’s or Doctoral studies in these (or other) groups are encouraged to contact me via email (firstname.lastname@example.org).
KA Kron. 2012. Empetrum (Ericaceae). pp. 700 in Baldwin, B. et al. (ed.s) The Jepson Manual: Vascular plants of California. 2nd edition. University of California Press.
KA Kron. 2012. Kalmia (Ericaceae). pp. 702 in Baldwin, B. et al. (ed.s) The Jepson Manual: Vascular plants of California. 2nd edition. University of California Press.
KA Kron. 2012. Menziesia (Ericaceae). pp. 703 in Baldwin, B. et al. (ed.s) The Jepson Manual: Vascular plants of California. 2nd edition. University of California Press.
KA Kron and WS Judd. 2012. Rhododendron (Ericaceae). pp. 706-707. in Baldwin, B. et al. (ed.s) The Jepson Manual: Vascular plants of California. 2nd edition. University of California Press.
D Fajardo, D Senalik, M Ames, H Zhu, S Steffan, R Harbut, J Polashock, N Vorsa, E Gillespie, K Kron, J Zalapa. 2012. Complete chloroplast genome sequence of Vaccinium macrocarpon: structure, gene content and rearrangements as revealed by next generation sequencing. Tree Genetics & Genomes -DOI 10.1007/s11295-012-0573-9. published online November 2012.
EL Gillespie and KA Kron. 2012. A new tribe, Bryantheae (Ericoideae: Ericaceae), composed of disjunct genera from South America and Japan. Brittonia 64:73–75.
W Judd, NC Melvin, K Waselkov, and KA Kron. 2012. Taxonomic revision of Eubotrys (Ericaceae, Gaultherieae). Brittonia. 64:165-178.
TM Schuster, JL Reveal, and KA Kron. 2011. Phylogeny of Polygoneae (Polygonaceae: Polygonoideae). Taxon 60: 1653–1666.
PW Fritsch, L Lu, CM Bush, BC Cruz, KA Kron, and D-Z Li. 2011. Phylogenetic Analysis of the Wintergreen Group (Ericaceae) based on Six Genic Regions. Systematic Botany 36:990–1003.
TM Schuster, KL Wilson, and KA Kron. 2011. Phylogenetic relationships of Muehlenbeckia, Fallopia, and Reynoutria (Polygonaceae) investigated with chloroplast and nuclear sequence data. International Journal of Plant Sciences 172:1053-1066.
SD Setaro and KA Kron. 2011. Neotropical and North American Vaccinioideae (Ericaceae) share their mycorrhizal Sebacinales – an indication for concerted migration? PLoS currents 3:RRN1227
A Sanchez, TM Schuster, JM Burke, and KA Kron. 2011. Taxonomy of Polygonoideae (Polygonaceae): A new tribal classification. Taxon 60:151-160.
A Sanchez and KA Kron. 2011. Phylogenetic relationships of Triplaris and Ruprechtia: Re-delimitation of the recognized genera and two new genera for Tribe Triplarideae (Polygonaceae). Systematic Botany 36:702-710.
JM Burke, A Sanchez, KA Kron, and M Luckow. 2010. Placing the woody tropical genera of Polygonaceae: A hypothesis of character evolution and phylogeny. American Journal of Botany 97:1377–1390.
E Gillespie and KA Kron. 2010. Molecular phylogenetic relationships and a revised classification of the subfamily Ericoideae (Ericaceae). Molecular Phylogenetics and Evolution 56:343–354.
CM Bush, WS Judd, and KA Kron. 2010. The phylogeny of Leucothoë s.l. (Ericaceae: Vaccinioideae) based on morphological and molecular data (ndhF, matK, and nrITS). Systematic Botany 35:201-206.
CM Bush, S Wagstaff, P Fritsch, and KA Kron. 2009. The phylogeny, biogeography and morphological evolution of Gaultheria (Ericaceae) from Australia and New Zealand. Australian Systematic Botany 22:229-242.
A Sanchez, T Schuster, and KA Kron. 2009. A large scale phylogeny of Polygonaceae. International Journal of Plant Sciences. International Journal of Plant Science 170:1044-1055.
A Sanchez and K Kron. 2009. Afrobrunnichia and Brunnichia and their relationships within Polygonaceae. Taxon. 58:781-792.
WS Judd and KA Kron. 2009. Rhododendron, pp. 455-473 in Elisens, et al. (ed.s) Flora North America Volume 8. Oxford University Press.
KA Kron. 2009. Epigaea, pp. 475 in Elisens, et al. (eds) Flora North America Volume 8. Oxford University Press.
KA Kron. 2009. Therorhodion, pp. 453-454 in Elisens, et al. (eds) Flora North America Volume 8. Oxford University Press.
KA Kron and EA Powell. 2009. Molecular systematics of Rhododendron subgenus Tsutsusi. Edinburgh Journal of Botany 66:81-96.