Gugger Lab

   Ecological Genomics





Gugger PF*, Peñaloza-Ramírez JM*, Wright JW, Sork VL (Submitted) Whole-transcriptome response to water stress in a California endemic oak, Quercus lobata. Tree Physiology.  *equal contributors


Zhao J-L, Werth S, Ikegami M, Gugger PF, Sork VL (Submitted) Comparative analysis of historical and future responses of an epiphytic lichen and its phorophytic tree species to climate changes. Landscape Ecology.




Sork VL, Gugger PF, Chen J-M, Werth S (2016) Evolutionary lessons from California plant phylogeography. Proceedings of the National Academy of Sciences, 113(29):8064–8071, doi:10.1073/pnas.1602675113.


Gugger PF, Fitz-Gibbon S, Pellegrini M, Sork VL (2016) Species-wide patterns of DNA methylation variation in Quercus lobata and their association with climate gradients. Molecular Ecology, 25(8):1665–1680, doi:10.1111/mec.13563.


Gugger PF, Cokus SJ, Sork VL (2016) Association of transcriptome-wide sequence variation with climate gradients in valley oak (Quercus lobata). Tree Genetics & Genomes, 12(2):15, doi:10.1007/s11295-016-0975-1.


Sork VL, Squire K, Gugger PF, Levy E, Steele S, Eckert AJ (2016) Landscape genomic analysis of candidate genes for climate adaptation in a California endemic oak, Quercus lobata Née (Fagaceae). American Journal of Botany, 103(1):33–46, doi:10.3732/ajb.1500162.


Riordan EC, Gugger PF, Ortego J, Smith C, Gaddis K, Thompson P, Sork VL (2016) Association of genetic and phenotypic variability with geography and climate in three southern California oaks. American Journal of Botany, 103(1):73–85, doi:10.3732/ajb.1500135.


Zhao J-L, Gugger PF, Xia Y-M, Li Q-J (2016) Ecological divergence of two closely related Roscoea species associated with late Quaternary climate change. Journal of Biogeography, doi:10.1111/jbi.12809.


Ortego J, Gugger PF, Sork VL (In press) Impacts of human-induced environmental disturbances on hybridization between two ecologically differentiated Californian oak species. New Phytologist.


Sork VL, Fitz-Gibbon ST, Puiu D, Crepau MW, Gugger PF, Sherman R, Stevens K, Langley CH, Pellegrini M, Salzberg SL (In press) First draft assembly and annotation of the genome of a California endemic oak, Quercus lobata Née (Fagaceae). G3: Genes, Genetics, Genomes.


Fetter K, Gugger PF, Keller SR (In press) Landscape genomics in angiosperm trees: from historic roots to discovering new branches of adaptive evolution. In: Comparative and Evolutionary Genomics of Angiosperm Trees (eds. Groover A, Cronk Q).


Sork VL, Ortego J, Riordan E, Gugger PF, Fitz-Gibbon S, Wei X (In press) Phylogeny and introgression of California scrub white oaks (Quercus sect. Quercus). International Oaks.


Llanderal-Mendoza J, Gugger PF, Oyama K, Uribe-Salas D, González-Rodríguez A (In press) Climatic determinants of acorn size and germination rate of Quercus rugosa (Fagaceae) along a latitudinal gradient. Botanical Sciences.


Sun S-S, Gugger PF, Wang Q-F, Chen J-M (In press) Identification of a R2R3-MYB gene regulating anthocyanin biosynthesis and relationships between its variation and flower color difference in lotus (Nelumbo Adans.). PeerJ.




Cokus SJ*, Gugger PF*, Sork VL (2015) Evolutionary insights from de novo transcriptome assembly and SNP discovery in California white oaks. BMC Genomics, 16:552, doi:10.1186/s12864-015-1761-4. [Supplement]


Platt A, Gugger PF, Pellegrini M, Sork VL (2015) Genome-wide signature of local adaptation linked to variable CpG methylation in oak populations. Molecular Ecology, 24(15):3823-3830, doi:10.1111/mec.13230. [Supplement] [Commentary]


Ortego J, Gugger PF, Sork VL (2015) Climatically stable landscapes predict patterns of genetic structure and admixture in the Californian canyon live oak. Journal of Biogegraphy, 42(2):328-338, doi:10.1111/jbi.12419. [Supplement]


Ortego J, Noguerales V, Gugger PF, Sork VL (2015) Evolutionary and demographic history of the Californian scrub white oak species complex: an integrative approach. Molecular Ecology, 24: 6188–6208, doi:10.1111/mec.13457.


Delfino-Mix A, Wright JW, Gugger PF, Liang CF, Sork VL (2015) Establishing a range-wide provenance test in valley oak (Quercus lobata Née) at two California sites. In: Proceedings of the seventh oak symposium: managing oak woodlands in a dynamic world. USDA Forest Service General Technical Report PSW-GTR-251, 413–424. [Abstract] [PDF]


Albarrán-Lara AL, Wright JW, Gugger PF, Delfino-Mix A, Peñaloza-Ramírez JM, Sork VL (2015) Phenotypic variation in California populations of valley oak (Quercus lobata Née) sampled along elevational gradients. In: Proceedings of the seventh oak symposium: managing oak woodlands in a dynamic world. USDA Forest Service General Technical Report PSW-GTR-251, 433–445. [Abstract] [PDF]





Ortego J, Gugger PF, Riordan EC, Sork VL (2014) Influence of climatic niche suitability and geographic overlap on hybridization patterns among southern Californian oaks. Journal of Biogeography, 41(10):1895-1908. [Abstract] [PDF] [Supplement]


Gavin DG, Fitzpatrick M, Gugger PF, et al. (2014) Climate refugia: joint inference from fossil records, species distribution models, and phylogeography. New Phytologist, 204(1):37-54. [Abstract] [PDF] [Supplement]




Gugger PF, Ikegami M, Sork VL (2013) Influence of late Quaternary climate change on present patterns of genetic variation in valley oak, Quercus lobata Née. Molecular Ecology, 22(13):3598-3612. [Abstract] [PDF] [Supplement]


Gugger PF, Cavender-Bares J. (2013) Molecular and morphological support for a Florida origin of the Cuban oak. Journal of Biogeography, 40(4):632-645. [Abstract] [PDF] [Supplement]




Ortego J, Riordan EC, Gugger PF, Sork VL (2012) Influence of environmental heterogeneity on genetic diversity and structure in an endemic southern Californian oak. Molecular Ecology, 21(13):3210-3223. [Abstract] [PDF] [Supplement]




Gugger PF, González Rodríguez A, Rodríguez Correa H, Sugita S, Cavender-Bares J (2011) Southward Pleistocene migration of Douglas-fir into Mexico: phylogeography, ecological niche modeling, and conservation of 'rear edge' populations. New Phytologist, 189(4):1185-1199. [Abstract] [PDF] [Supplement] [Commentary by Andrew Eckert]




Gugger PF, Sugita S, Cavender-Bares J (2010) Phylogeography of Douglas-fir based on mitochondrial and chloroplast DNA sequences: testing hypotheses from the fossil record. Molecular Ecology, 19(9):1877-1897. [Abstract] [PDF] [Supplement]


Gugger PF, Sugita S (2010) Glacial populations and postglacial migration of Douglas-fir based on fossil pollen and macrofossil evidence. Quaternary Science Reviews, 29(17-18):2052-2070. [Abstract] [PDF] [Supplement]




Arnold AE, Miadlikowska J, Higgins KL, Sarvate SD, Gugger P, Way A, Hofstetter V, Kauff F, Lutzoni F (2009) A phylogenetic estimation of trophic transition networks for Ascomycetous fungi: are lichens cradles of symbiotrophic fungal diversification? Systematic Biology, 58(3):283-297. [Abstract] [PDF] [Supplement]




Gugger PF, McLachlan JS, Manos PS, Clark JS (2008) Inferring long-distance dispersal and topographic barriers during postglacial colonization from the genetic structure of red maple (Acer rubrum L.) in New England. Journal of Biogeography, 35(9):1665-1673. [Abstract] [PDF] [Supplement]




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