UMass Amherst
Plant, Soil & Insect Sciences

Assistant Professor
Department of Plant, Soil & Insect Sciences
206 French Hall
University of Massachusetts
Amherst, MA 01003-9294 USA
Phone:(413) 545-2243
Fax: (413)545-3075
jung@psis.umass.edu

 

 

Education

Ph.D., 1995. Breeding and Genetics, University of Nebraska-Lincoln

Employment

Postdoctoral Research Associate, Dept. of Horticulture, Univ. of Wisconsin-Madison. 1995-1999.

Assistant Professor in Plant Breeding and Plant Genetics program, Dept. of Plant Pathology, Univ. of Wisconsin-Madison. January 2000 - August 2006.

Specialties

  • Population genetics of Sclerotinia homoeocarpa, causal agent of dollar spot on turfgrass, as a model system of plant pathogenic sterile fungi
  • Management of fungicide resistance of dollar spot on turfgrass
  • Classical and molecular breeding of disease resistance in Lolium and Agrostis spp.
  • Mapping of disease resistance quantitative traits in Lolium and Agrostis and comparative genomics analysis in Poaceae species
  • DNA fingerprinting of Kentucky bluegrass and bermudagrass
  • Nanotechnology for plant pathogenic fungi

Teaching

  • Turfgrass Pathology Lab (PLSOILIN 112), fall semesters
  • Special Topic-Advanced Turfgrass Pathology (PLSOILIN 597M), spring semesters
  • Horticultural Plant Pathology (PLSOILIN 111), fall semesters

Selected Research Publications

2008

Chang, S.W., and G. Jung. 2008. The first linkage map of the psychrophilic Basidiomycete Typhula ishikariensis. Genome 51:128-136.

Jo, Y., R. Barker, W. Pfender, S. Warnke, S. Sim, and G. Jung. 2008. Comparative analysis of multiple disease resistance in ryegrass and cereal crops. Theoretical and Applied Genetics 117:531-543.

Jo, Y., S. Chang, J. Rees, and G. Jung. 2008. Reassessment of vegetative compatibility of Sclerotinia homoeocarpa using nitrate-nonutilizing mutants. Phytopathology 98:108-114.

2007

Rotter, D., Bharti, A.D., Li, H.D., Luo, C., Bonos, S.A., Bughrara, S., Jung, G., Messing, J., Meyer, W.A., Rudd, S., Warnke, S.E., and Belanger, F.C.. 2007. Analysis of EST sequences suggests recent origin of allotetraploid colonial and creeping bentgrasses. Mol Genet Genomics Vol. 278 No. 2:197-209.

Navarro, F., P. Skroch, G. Jung, and J. Nienhuis. 2007. Quantitative trait loci associated with bacterial brown spot in Phaseolus vulgaris L. Crop Science 47:1344-1353.

Y. Xiong, S. Fei, R. Arora, E.C. Brummer, R.E. Barker, G. Jung, and S.E. Warnke. 2007 (online Dec. 2006). Identification of quantitative trait loci controlling winter hardiness in an annual x perennial ryegrass interspecific hybrid population. Molecular Breeding 19:125-136.

Sim, S., K. Diesburg, M. Casler, and G. Jung. 2007. Mapping and comparative analysis of QTL for crown rust resistance in an Italian x perennial ryegrass population. Phytopathology 97:767-776.

Chang, S.W., T. H. Chang, R. A. B. Abler, and G. Jung. 2007. Variation in bentgrass susceptibility to Typhula incarnata and in isolate aggressiveness under controlled environment conditions. Plant Disease 91:446-452.

2006

Chang, S.W., E. Scheef, R. A. B. Abler, S. Thomson, P. Johnson, and G. Jung. 2006. Distribution of Typhula spp. and T. ishikariensis varieties in Wisconsin, Utah, Michigan and Minnesota. Phytopathology 96:926-933.

Chakraborty, N., J. Curley, S. Warnke, M.N. Casler, and G. Jung, 2006. Mapping QTL for dollar spot resistance in creeping bentgrass (Agrostis stolonifera L.). Theoretical and Applied Genetics 113:1421-1435.

Y. Xiong, S. Fei, E. Charles Brummer, K. J. Moore, R. E. Barker, G. Jung, J. Curley, and S. E. Warnke. 2006. QTL analyses of fiber components and crude protein in an annual x perennial ryegrass interspecific hybrid population. Molecular Breeding 18:327-340.

Chang, S.W., T.H. Chang, L. Tredway, and G. Jung. 2006. Aggressiveness of Typhula ishikariensis isolates to cultivars of bentgrass species (Agrostis spp.) under controlled environment conditions. Plant Disease Vol. 90 No. 7:951-956.

Iñiguez-Luy, F., M. E. Sass, G. Jung, M. A. Johns, and J. Nienhuis. 2006. Development of robust SCAR markers that distinguish the six cultivated Brassica species and subspecies of the U-triangle. Journal of American Society for Horticultural Science 131: 424-432.

Chakraborty, N., T. Chang, M.D. Casler, G. Jung. 2006. Response of bentgrass cultivars to Sclerotinia homoeocarpa isolates representing ten vegetative compatibility groups. Crop Science 46: 1237-1244.

2005

Sim, S., T. Chang, J. Curley, S.E. Warnke, R.E. Barker and G. Jung. 2005. Chromosomal rearrangements differentiating ryegrass genome from the Triticeae, oat, and rice genomes using common heterologous RFLP probes. Theoretical and Applied Genetics 110: 1011-1019.

Brown, R.N., R.E. Barker, S.E. Warnke, L. A. Brilman, M.A. Rouf Mian, G. Jung, and S. Sim. 2005. QTL analyses for morphological traits useful in distinguishing annual ryegrass and turf-type perennial ryegrass. International Turfgrass Society Research Journal 10: 516-524.

Stier, J. J. Bae, and G. Jung. 2005. Composition of Kentucky bluegrass and perennial ryegrass turf mixtures as sports turf. International Turfgrass Society Research Journal 10: 645-653.

Hollman, A.B., J.C. Stier, M.D. Casler, G. Jung, and L. Brilman. 2005. Identification of putative velvet bentgrass clones using RAPD markers. Crop Science 45: 923-930.

Chakraborty, N., J. Bae, S. Warnke, T. Chang, G. Jung, 2005. Linkage map construction in allotetraploid creeping bentgrass (Agrostis stolonifera L.). Theoretical and Applied Genetics 111: 795-803.

Curley, J., S.C. Sim, S. Warnke, S. Leong, R. Barker, and G. Jung. 2005. QTL mapping of resistance to gray leaf spot in ryegrass. Theoretical and Applied Genetics 111: 1107-1117.

Stendal, C., M.D. Casler, G. Jung. 2005. Marker-assisted selection for neutral detergent fiber in smooth bromegrass. Crop Science 46:303-311.

2004

Vergara, G., S.S. Bughrara, and G. Jung. 2004. Genetic variability of gray snow mold (Typhula incarnata). Mycological Research 108: 1283-1290.

Curley, J. and G. Jung. 2004. RAPD-based genetic relationships in Kentucky bluegrass: comparison of cultivars, interspecific hybrids, and plant introductions. Crop Science 44: 1299-1306.

Warnke, S.E., R.E. Barker, G. Jung, S. Sim, M.A. Rouf Mian, M.C. Saha, L.A. Brilman, M.P. Dupal, and J.W. Forster. 2004. Genetic linkage mapping of an annual x perennial ryegrass population. Theoretical and Applied Genetics 109: 294-304.

Eaton T.D., J. Curley, R.C. Williamson, and G. Jung. 2004. Determination of ploidy level of Kentucky bluegrass cultivars by means of flow cytometry. Crop Science 44: 1168-1174.

2003

Scheef, E., M. Casler, and G. Jung. 2003. Development of species-specific SCAR markers in bentgrass. Crop Science 43: 345-349.

Casler, M. Y. Rangel, J. Stier, and G. Jung. 2003. RAPD marker diversity among creeping bentgrass clones. Crop Science 43: 688-693.

Jung, G., H.M. Ariyarathne, D.P. Coyne, and J. Nienhuis. 2003. Mapping QTL for bacterial brown spot resistance under natural infection in field and seedling stem inoculation in growth chamber in common bean. Crop Science 43: 350-357.

Burpee, L.L., C.W. Mims, L.L. Tredway, J. Bae, and G. Jung. 2003. Pathogenicity of a novel biotype of Limonomycesroseipellis in Tall Fescue. Plant Disease Vol. 87 No. 9: 1031-1036.

Sandra Vega, A. del Rio, G. Jung, J. Bamberg, and J. Palta. 2003. Marker-assisted genetic analysis of non-acclimated freezing tolerance and cold acclimation capacity in a backcross Solanum population. American Journal of Potato Research 80: 359-369.

2002

Hoch, W., G. Jung, and B. McCown. 2002. Effectiveness of interspecific hybridization for incorporating birch leafminer (Fenusa pusilla) resistance into white-barked Betular. Journal of American Society for Horticultural Science 127(6): 957-962.

Beltran, G., G. Jung, and J. Nienhuis, and M. Bassett. 2002. Identification of RAPD markers linked to five marker genes (blu, dgs, y, arg, and a flat pod mutant) in common bean. Journal of American Society for Horticultural Science 127(4): 685-688.

2001

A.L. Fall, P.F. Byrne, G. Jung, D.P. Coyne, M.A. Brick, and H.F. Schwartz. 2001. Detection and mapping of a major locus for Fusarium wilt resistance in common bean. Crop Science 41: 1494-1498.

2000

S. Park, D. Coyne, G. Jung, P. Skroch, E. Arnaud-Santana, J. Steadman, H. Ariyarathne, and J. Nienhuis. 2000. Mapping of QTL for seed size and shape traits in common bean. Journal of American Society for Horticultural Science 125: 466-475.

1999

G. Jung, P. Skroch, J. Nienhuis, D. Coyne, H.M. Ariyarathne , and E. Arnaud-Santana. 1999. Confirmation of QTL associated with common bacterial blight resistance in four different genetic backgrounds in common bean. Crop Science 39: 1448-1455.

Ariyarathne H.M., D.P. Coyne, G. Jung, A.K. Vidaver, J.R. Steadman, P.N. Miklas, M.J. Bassett, and P. Skroch. 1999. Molecular mapping of disease resistance genes for halo blight, common bacterial blight, and bean common mosaic virus in a segregating population of common bean. Journal of American Society for Horticultural Science 124 (6): 654-662.

C.L. Boehm, H.C. Harrison, G. Jung, J. Nienhuis. 1999. Organization of American and Asian Ginseng (Panax sp.) Germplasm Using Randomly Amplified Polymorphic DNA (RAPD). Journal of American Society for Horticultural Science 124 (3): 252-256.

S. Park, D. Coyne, N. Mutlu, and G. Jung. 1999. Confirmation of molecular markers and flower color associated with QTL for resistance to common bacterial blight in common beans. Journal of American Society for Horticultural Science 124 (5): 519-526.

1998

Soon O. Park, Dermot P. Coyne, Atilla Dursun, and Geunhwa Jung. 1998. Identifying randomly amplified polymorphic DNA (RAPD) markers linked to major genes for common bacterial blight resistance in tepary bean. Journal of American Society for Horticultural Science 123 (2): 278-282.

Geunhwa Jung, Dermot P. Coyne, James Bokosi, James R. Steadman, and James Nienhuis. 1998. Mapping genes for specific and adult plant resistance to rust and abaxial leaf pubescence and their genetic relationships using molecular markers in common bean. Journal of American Society for Horticultural Science 123 (5): 859-863.

1997

L.E.A. Camargo, L. Savides, G. Jung, J. Nienhuis, and T.C. Osborn. 1997. Location of the self-incompatibility locus in an RFLP and RAPD map of Brassica oleracea. Journal of Heredity 88: 57-60.

Geunhwa Jung, Paul W. Skroch, Dermot P. Coyne, James Nienhuis, E. Arnaud-Santana, H.M. Ariyarathne, Shawn M. Kaeppler, and Mark J. Bassett. 1997. Molecular-marker-based genetic analysis of tepary bean-derived common bacterial blight resistance in different developmental stages of common bean. Journal of American Society for Horticultural Science 122 (3): 329-337.

1996

G. Jung, D.P. Coyne, P.W. Skroch, J. Nienhuis, E. Arnaud-Santana, J. Bokosi, H.M. Ariyarathne, J.R. Steadman, J.S. Beaver, and S.M. Kaeppler. 1996. Molecular markers associated with plant architecture and resistance to common blight, web blight and rust in common beans (Phaseolus vulgaris L.). Journal of American Society for Horticultural Science 121 (5): 794-803.

Recently submitted

Brown, R.N., R. E. Barker, S. E. Warnke, L. A. Brilman, M. A. Rouf Mian, S. Sim, and G. Jung. 2008. Identification of quantitative trait loci for flowering time and floral morphology in a field-grown Lolium perenne x Lolium multiflorum mapping population. Molecular Breeding (submitted).

Koch, P.L., C. R. Grau, Y. Jo and G. Jung. 2008. Thiophanate-methyl and propiconazole sensitivity of Sclerotinia homoeocarpa isolates collected from golf course putting greens, fairways, and roughs in Wisconsin and Massachusetts. Plant Disease (submitted).

Jo, Y., B. Kim and G. Jung. 2008. Antifungal activity of ionic and nanoparticle silver on phytopathogenic fungi. Phytopathology (submitted).

Selected Nonrefereed Publications

Jung, G. and Y. Jo. 2008. New challenge to an old foe, dollar spot fungicide resistance. GCSAA Golf Course Management February 2008 pages 170-175.

Jung, G. and S. Chang. 2008. Distribution of Typhula species and varieties in Wisconsin, Utah, Michigan and Minnesota. GCSAA Golf Course Management January 2008 pages 170-175.

Chang, S., Y. Jo, and G. Jung. 2007. A fresh look at fungicides for snow mold control. GCSAA Golf Course Management July 2007 pages 91-94.

Jung, G., J. Curley, and Y.-K. Jo. 2007. A genetic roadmap for breeding perennial ryegrass resistant to gray leaf spot. USGA Turfgrass and Environmental Research Online. 6(2):1-7.

Casler, M.D., Jung, G., Bughrara, S., Hamblin, A., Williamson, C., Voigt, T. 2006. Development of Creeping Bentgrass with Resistance to Snow Mold and Dollar Spot. USGA Turfgrass and Environmental Research Online. 5(18):1-10.

 

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