• Ph.D. in Plant Breeding and Genetics (1989) from Virginia Polytechnic Institute and State University, Blacksburg, Virginia
• B.S. in Agronomy (1978) and M.S. in Plant Breeding and Genetics (1982) from Northwestern University of Agriculture, China
• Advanced Graduate Study (1984-1985) in Cytogenetics at Iowa State University, Ames, Iowa

• Professor (2009 - present) in the Department of Crop, Soil, and Environmental Sciences, University of Arkansas.
• Associate Professor (2005 - 2008) and Assistant Professor (2001-2004) in the Department of Crop, Soil, and Environmental Sciences, University of Arkansas.
• Research Scientist (1991-2001) in the  Department of Crop and Soil Environmental Sciences, Virginia Polytechnic Institute and State University.
• Hybrid Rice Breeder (1989-1991), Ring Around Seed Company.
  

• CSES 3322 - Soybean Production

• The University of Arkansas soybean breeding and genetics program is designed to provide producers with unbiased, research-based information on variety selection, and a steady flow of new and improved soybean varieties adapted to various production systems and regions in Arkansas and the mid-south. A long-term goal of our soybean breeding program is to develop varieties with high productivity and profitability. Our specific objectives for variety development include increased yield, wide range maturities, multiple and durable disease resistance, stress tolerance, conventional and herbicide resistance, lodging and shattering resistance, value-added traits, and improved seed quality.
• Our breeding program also aims to develop diverse germplasm that would broaden the genetic background and improve the southern soybean gene pool. In addition, the research program incorporates value-added specialty traits that would meet various market demands for health benefits and nutritional value from soyfood products such as tofu, natto, soymilk, soy sauce, miso, soynuts, edamame, and bean sprouts. The specialty soybean program focuses on proper seed size, high protein, low oil, high sugar, low calcium, soft texture, high isoflavone, lipoxygenase-free, and modified fatty acids. In addition, we are developing high protein and low phytate soybeans for specialty feed that would increase feeding efficiency and decrease environmental pollution. The specialty soybeans will play an important role in expanding the niche markets for soyfood, feed, and nutraceuticals and, therefore, enhance the overall soybean production.
• Soybean breeding and genetics research are conducted at five experiment stations throughout Arkansas, each with a soybean research specialist assigned. In addition, we have three full-time research specialists on campus along with five Ph.D. and four M.S. students working on various research projects, including drought tolerance, flood tolerance, virus resistance, genetic diversity, early production systems, seed quality traits, economics of specialty soybeans, seed physical and chemical properties, molecular makers, and gene discovery. Research projects are funded by USDA-NRI, USDA-ARS, United Soybean Board, Blue Horizon, Inc., Toyota Tsusho Corporation, Arkansas Soybean Promotion Board, Arkansas Bioscience Institute, and Arkansas Agricultural Experiment Station Research Incentive Program.
  

1.  Book chapters (4):
• Chen*, P. and C.W. Choi. 2007. Characterization of genetic interaction between soybean and soybean mosaic virus. P.389-422 In G.P. Rao (ed.) Molecular Diagnosis of Plant Viruses. Studium Press LLC, Houston, TX, USA.  
• Chen*, P. 2004. Developing high quality identity-preserved soybean for the specialty soyfood market. P. 23-31. In: Production and Marketing of Identity-Preserved Soybean, American Soybean Association.  
• Scaboo, A.M., P. Chen*, D.A. Sleper, and K.M. Clark. 2009. Classical genetics and conventional breeding of soybean. In K. D. Bilyeu (ed.) Genomics of Oilseed and Pulse Crops: Soybean Genomis. Wiley-Blackwell (In press).  
• Mozzoni, L.A. and P. Chen*. 2009. In vitro maintenance of plant viruses in tissue culture. In A. M. Wang (ed.) Principles and Practice of Advanced Methods in Plant Virology. Research Signpost Press (In press).  
2. Published in 2009 (10):
• Hou, A., P. Chen*, A. Shi., B. Zhang, and Y.J. Wang. 2009. Soluble sugar variation in soybean seed assessed with a rapid extraction and quantification method. Intl. J. Agron. (In press, DOI:10.1155/2009/484571).
• Hou, A., P. Chen,* J. Alloatti, D. Li, L. Mozzoni,  B. Zhang,  and A. Shi. 2009. Genetic variability of seed sugar content in worldwide soybean germplasm collections. Crop Sci. 49:903-912.
• Jackson, E.W., C. Feng, P. Fenn, and P. Chen. 2009. Genetic mapping of resistance to Phomopsis seed decay in the soybean breeding line MO/PSD-0259 (PI 562694) and plant introduction 80837. J. Hered. (In press).
• Li, D.X., P. Chen*, A. Shi, E. Shakiba, R. Gergerich, and Y. F. Chen. 2009. Temperature affects expression of symptoms induced by soybean mosaic virus in homozygous and heterozygous plants. J. Hered. 100:348-354.
• Mozzoni, L.A., P. Chen*, and R.C. Gergerich. 2009. Differentiation of bean pod mottle virus isolates based upon host symptoms. European J. Plant Path. 124:133-140
• Mozzoni, L.A., R. O. Morawicki, and P. Chen. 2009. Canning of vegetable soybean: Procedure and quality evaluations. Int. J. Food. Sci.  Tech. 44:1125-1130.
• Seversike, T. M., L.C. Purcell, E. Gbur. P. Chen, and R. Scott. 2009. Radiation interception and yield response to increased leaflet number in early-maturing soybean genotypes. Crop Sci. 49:281-289.
• Shi A., S.K. Kantartzi, M.T. Mmbaga and P. Chen. 2009. Differentiation of two pathogens of powdery mildew disease in flowering dogwood (Cornus florida L.) by PCR-mediated method based on ITS sequences. J. Phytopath. 157:271-279.
• Zhang, Bo, Pengyin Chen*, Ainong Shi, Anfu Hou, and Tetsuaki Ishibashi, and Dechun Wang. 2009. Putative Quantitative Trait Loci (QTL) Associated with Calcium Content in Soybean Seeds. J. Hered. 100:263-269.
• Verkler, T.L., K.R. Brye, J.H. Popp, E.E. Gbur, P. Chen, and N. Amuri. 2009. Soil properties, soybean response, and economic return as affected by residue and water management practices. J. Sustainable Agriculture (In press).
3. Published in 2008 (20):
• Amuri, Nyambilila, K. R.  Brye, E. E. Gbur, J. Popp, and P. Chen. 2008. Soil property and soybean yield trends in response to alternative wheat residue management practices in a wheat-soybean, double-crop production system in eastern Arkansas. J. Integr. Biosci. 6(1):64-86.
• Bajaj, S., P. Chen*, D. E. Longer, A. Hou, A. Shi, T. Ishibashi, B. Zhang, and K. R. Brye. 2008. Effects of irrigation and planting date on seed yield and agronomic traits of early-maturing soybeans. J. Crop Improvement 22(43): 47-65.
• Bajaj, S., P. Chen*, D. E. Longer, A. Hou, A. Shi, T. Ishibashi, B. Zhang, and K. R. Brye. 2008. Planting Date and Irrigation Effects on Seed Quality of Early-Maturing Soybean in the Mid-South USA. Journal of New Seeds 9(3):212-233.
• Chen*, P., C.H. Sneller, T. Ishibashi, and B. Cornelious. 2008. Registration of high-protein soybean germplasm line R95-1705. J. Plant Registrations 2(1):58-59.
• Feng, C., A. Hou, P. Chen*, B. Cornelious, A. Shi, and B. Zhang. 2008. Assessment of genetic diversity among popular historical southern U.S. soybean cultivars using AFLP markers. J. Crop Improvement 22(43):31-46.
• Giannoccaro, E., Y. Wang, and P. Chen. 2008. Comparison of two HPLC systems and an enzymatic method for quantification of soybean sugars. Food Chemistry 106:324-330.
• Li, Y., R. Guan, Z. Liu, Y. Ma, L. Wang, L. Li, F. Lin, W. Luan, P. Chen, Z. Yan, Y. Guan, L. Zhu, X. Ning, M.J.M. Smulders, W. Li,  R. Piao, Y. Cui, Z. Yu, M. Guan, R. Chang, A. Hou, A. Shi, B. Zhang, S. Zhu, and L. Qiu. 2008. Genetic structure and diversity of cultivated soybean [Glycine max (L.) Merr.] landraces in China. Theor. Appl. Genet. 117:857-871.
• Jackson, E.W., C. Feng, P. Fenn, and P. Chen. 2008. Genetic mapping of resistance to purple seed stain in PI 80837 soybean. J. Hered. 99(3):319-322.
• Rosso, M.L., J.C. Rupe, P. Chen, and L.A. Mozzoni. 2008. Inheritance and genetic mapping of resistance to Pythium damping-off caused by Pythium aphanidermatum in Archer soybean. Crop Sci. 48:2215-2222.
• Shi, A. P. Chen*, D. Li, C. Zheng, A. Hou, and B. Zhang. 2008. Genetic confirmation of two independent genes for resistance to soybean mosaic virus in J05 soybean using SSR markers. J. Hered. 99(6):598-603.
• Shi, A., P. Chen*, C. Zheng, A. Hou, and B. Zhang. 2008. A PCR-based marker for the Rsv1 locus conferring resistance to soybean mosaic virus. Crop Sci. 262-268.
• Shi, A., P. Chen*, D. Li, C. Zheng, B. Zhang, and A. Hou. 2008. Pyramiding multiple genes for resistance to soybean mosaic virus in soybean using molecular markers. Molecular Breeding 23:113-124.
• Shi, A., P. Chen*, R. Gergerich, A. Hou, and B. Zhang. 2008. Interaction between two strains of soybean mosaic virus in soybean. Can. J. Plant Path. 30:486-491.
• Shi A., S.K. Kantartzi, M. Mmbaga and P. Chen. 2008. Isolation of resistance gene analogs from flowering dogwood (Cornus florida L.). J. Phytopath. 156:742-746.
• Shi, A., S. Kantartzi, M. Mmbaga, P. Chen, F. Mrema, and E. Nnodu. 2008. PCR-based detection of Colletotrichum acutatum and C. gloesporioides in flowering dogwood (Cornus florida). Australia J. Plant Path. 37 (1): 65-68.

• Smith, S., P. Fenn (Deceased), P. Chen, and Eric Jackson. 2008. Inheritance of resistance to Phomopsis seed decay in PI 360841 soybean. J. Hered. 99(6):588-592.
• Valencia, R., P. Chen*, T. Ishibashi, and M. Conatser. 2008. A rapid and effective method for screening salt tolerance in soybean. Crop Sci. 48:1773-1779.
• Zhang, B., P. Chen*, Y. Chen, D. Wang, A. Shi, A. Hou, and T. Ishibashi. 2008. Mapping quantitative trait loci (QTL) for seed hardness in soybean. Crop Sci. 48:1341-1349.
• Zhang, B., M. Tamura, J. Berger-Doyle, and P. Chen*. 2008. Comparison of instrumental methods for measuring seed hardness of food-grade soybean. J. of Texture Studies 39:28-39.
• Zheng, C., P. Chen*, D. Li, and R. Gergerich. 2008. New sources of resistance to soybean mosaic virus in soybean. Can. J. Plant Path. 30:595-603.
3. Published in 2007 (7):
• Braun, U., A. Shi, M. Mmbaga, S. Takamatsu, R. Divarangkoon, and P. Chen. 2007. Erysiphe abbreviata on cherry bark oak – morphology, phylogeny and taxonomy. Mycologia 99(5):655-663.
• Brye, K.R., D.E. Longer, M.L. Cordell, P. Chen, E.E. Gbur, and A.L. Pirani. 2007. Impact of nitrogen applications to wheat on no-tillage double-crop soybean. Online. Crop Man. doi:10.1094/CM-2007-0219-01-RS.
• Chen*, P., C.H. Sneller, L.A. Mozzoni, and J.C. Rupe. 2007. Registration of ‘Osage’ Soybean. J. Plant Registrations 1(2):89-92.
• Chen*, P., C.H. Sneller, L.C. Purcell, T.R. Sinclair, C.A. King, and T. Ishibashi. 2007. Registration of soybean germplasm lines R01-416F and R01-581F for improved yield and nitrogen fixation under drought stress. J. Plant Registrations 1(2):166-167.
• Donya, A., N.S. Hettiarachchy, R. Liyanage, J.O. Lay, P. Chen, and M. Jalaluddin. 2007. Effects of processing methods on the proximate composition and momordicosides K and L content of bitter melon vegetable. J. Agric. Food Chem. 55(14):5827 -5833.

• Sinclair, T.R., L.C. Precell, C.A. King, C.H. Sneller, P.Chen, and V. Vadez. 2007. Drought tolerance and yield increase of soybean resulting from improved symbiotic N2 fixation. Field Crop Res. 101:68-71. 
• Tamura, M., B. Zhang, J. Berger-Doyle, and P. Chen*. 2007. Methods for testing seed texture of soybeans for soyfood. Discovery. Discovery 8:77-84.
4. Published in 2006 (10):
• Carter, Jr. T.E.., J.H. Orf, L. C. Purcell, J.E. Specht, P. Chen, T.R. Sinclair, T.W. Rufty. 2006. Tough times, tough plants – new soybean genes defend against drought and other stresses. Proc. Of the 33rd Soybean Seed Res. Conf., CD-ROM, Am. Seed Trade Assoc., Alexandria, VA.
• Chen*, P., C.H. Sneller, J.C. Rupe, R.D. Riggs, and R.T. Robbins. 2006. Registration of ‘UA4805’ soybean. Crop Sci. 46:974.
• Chen, Y.,  P. Chen*, and B. G. de los Reyes. 2006. Differential responses of the cultivated and wild species of soybean to dehydration stress. Crop Sci. 46:2041-2046.
• Cicek, M.S., P. Chen,* M.A. Saghai Maroof, and G.R. Buss. 2006. Interrelationships among agronomic and seed quality traits in an interspecific soybean recombinant inbred population. Crop Sci. 46:1253-1259.
• Cornelious, B., P. Chen*,A. Hou, A. Shi, and J.G. Shannon. 2006. Yield potential and waterlogging tolerance of selected near isogenic lines and recombinant inbred lines from two southern soybean populations. J. Crop Improvement 16:97-111.
• Giannoccaro, E., Y.J. Wang, and P. Chen. 2006. Effects of solvent, temperature, time, solvent-tosample ratio, sample size, and defatting on the extraction of soluble sugars in soybean. J. Food Chemistry and Toxicology Vol. 71, Nr. 1, C59-C64.
• Jackson, E.W., C. Feng, P. Fenn, and P. Chen. 2006. Inheritance of resistance to purple seed stain caused by Cercospora kikuchii in PI 80837 soybean. Crop Sci. 46:1462-1466.
• Wang, L., Y. Guan, R. Guan, Y. Li, Y. Ma, Z. Dong, X. Liu, H. Zhang, Y. Zhang, Z. Liu, R. Chang, H. Xu, L. Li, F. Lin, W. Luan, Z. Yan, X. Ning, L. Zhu, Y. Cui, R. Piao, Y Liu, P. Chen, and L. Qiu. 2006. Establishment of Chinese soybean (Glycine max) core collections with agronomic traits and SSR markers. Euphytica 151:215-223.
• Zhang, B., N. Hetttiarachychy, P.Chen, R. Horax, B. Cornelious, and D. Zhu. 2006. Influence of the application of three different elicitors on soybean plants on the concentrations of several isoflavones  in soybean seed. J. Agric. Food. Chem. 54:5548-5554.
• Zheng, C., P. Chen*, and R. Gergerich, 2006. Genetic analysis of resistance to Soybean mosaic virus in J05 soybean. J. Hered. 97(5):429-437.
5. Published in 2005 (7):
• Choi, B.K.,  J.M. Koo, H.J. Ahn, H.J. Yum, C.W. Choi, K.H. Ryu, P. Chen  and S.A. Tolin. 2005. Emergence of Rsv-resistance breaking Soybean mosaic virus isolates from Korean soybean cultivars. J. Gen. Virol. 112:42-51.
• Cornelious, B.K., P. Chen, Y. Chen, N. de Leon, J.G. Shannon, and D. Wang. 2005. Identification of QTLs underlying waterlogging tolerance in soybean. Molecular Breeding 16:103-112.
• Jackson, E.W., P. Fenn, and P. Chen. 2005. Inheritance of resistance to Phomopsis seed decay in soybean PI 80837 and MO/PSD-0259 (PI 56264). Crop Sci. 45:2400-2404.
• Zheng, C., P. Chen*, and R. Gergerich. 2005. Effect of temperature on the expression of necrosis in soybean infected with Soybean mosaic virus. Crop Sci. 45:916-922.
• Zheng C., P. Chen*, T. Hymowitz, S.L. Wickizer, and R.C. Gergerich. 2005. Evaluation of Glycine species for resistance to Bean pod mottle virus. Crop Protection 24:49-56.
• Zheng, C., P. Chen*, and R. Gergerich. 2005. Characterization of resistance to Soybean mosaic virus in diverse soybean germplasm. Crop Sci. 45:2503-2509.
• Zhu, D., N. Hettiarachchy, R. Horax, and P. Chen. 2005. Isoflavone contents in germinated soybean seeds. Plant Foods Hum. Nutr.  60:147-151.
6. Published in 2004 (12):
• Bajaj, S.K., D.E. Longer, and P. Chen. 2004. Variations in seed yield and seed quality from soybeans in ultra-low populations. Current Trends in Plant Biology 5:103-115.
• Brye, K.B., N.A. Slaton, and P. Chen. 2004. Can crop productivity be predicted by soil characterization after land leveling? Crop Management (doi:10.1094/CM-2004-0908-01-RS).
• Brye, K.R., P. Chen, L.C. Purcell, M. Mozaffari, and R.J. Norman. 2004. First-year soybean growth and production as affected by soil properties following land leveling. Plant and Soil 263:323-334.
• Chen*, P., G.R. Buss, and S.A. Tolin. 2004. Reaction of soybean to single and double inoculation with different Soybean mosaic virus strains. Crop Protection 23:965-971.
• Chen*, P., G.R. Buss, R.E. Veilleux, and S.A. Tolin. 2004. Establishment and maintenance of Soybean mosaic virus in soybean callus culture. Can. J. Plant Path. 26(3):379-385.
• Chen*, P., C.H. Sneller, J.C. Rupe, and R.D. Riggs. 2004. Registration of ‘Ozark’ soybean. Crop Sci. 44:1872-1873.
• Gunduz, I., G.R. Buss, P. Chen*, and S.A. Tolin. 2004. Genetic and phenotypic analysis of Soybean mosaic virus resistance in PI 88788 soybean. Phytopathology 94(7):687-692.
• Horax, R., N.S. Hettiarachchy, P. Chen, and M. Jalaluddin. 2004. Functional properties of protein isolate from cowpea (Vigna unguiculata L. Walp.). J. Food Sci. 69:119-121.
• Horax, R., N.S. Hettiarachchy, P. Chen, and M. Jalaluddin. 2004. Preparation and characterization of protein isolate from cowpea (Vigna unguiculata L. Walp.). J. Food Sci. 69:114-118.
• Ma, G., P. Chen*, G.R. Buss, and S.A. Tolin. 2004. Genetics of resistance to two strains of Soybean mosaic virus in differential soybean genotypes.  J. Hered. 95(4):322-326.
• Sneller, C.H., P. Chen*, J.C. Rupe, and R.D. Riggs. 2004. Registration of ‘Lonoke’ soybean. Crop Sci. 44:689-690.
• Sneller, C.H., P. Chen*, J.C. Rupe, and R.D. Riggs. 2004. Registration of ‘Desha’ soybean. Crop Sci. 44:689.
7. Published in 2003 (3):
• Chen*, P., G. R. Buss, S. A. Tolin, and R. E. Veilleux. 2003. A tissue culture method for preservation of soybean mosaic virus strains. Plant Cell, Tissue and Org. Cult. 74:185-203.
• Ma, G., P. Chen*, G. R. Buss, and S. A. Tolin. 2003. Genetic study of a lethal necrosis to soybean mosaic virus in PI 507389 soybean. J. Hered. 94(3):205-211.
• Zheng, C., R. Chang, L. Qiu, and P. Chen. 2003. Identification and characterization of a RAPD/SCAR marker linked to a resistance gene for soybean mosaic virus in soybean. Euphytica 132:199-210.
8. Published in 2002 (4):
• Chen, P., G.R. Buss, S.A. Tolin, I. Gunduz, and M. Cicek. 2002. Identification of a valuable gene in Suweon 97 for resistance to all strains of Soybean mosaic virus. Crop Sci. 42:333-337.
• Gunduz, I., G.R. Buss, P. Chen, and S.A. Tolin. 2002. Characterization of genes in Tousan 140 and Hourei soybean for resistance to Soybean mosaic virus. Crop Sci. 42:90-95.
• Liao, L., P. Chen, G.R. Buss, Q. Yang, and S.A. Tolin. 2002. Inheritance and allelism of resistance to Soybean mosaic virus in Zao18 soybean from China. J. Hered. 93(6):447-452.
• Ma, G., P. Chen, G.R. Buss, and S.A. Tolin. 2002. Complementary action of two independent dominant genes in Columbia soybean for resistance to Soybean mosaic virus. J. Hered. 93:179-184.
9. Published in 2001 (2):
• Chen, P., G. Ma, G.R. Buss, I. Gunduz, C.W. Roane, and S.A. Tolin. 2001. Inheritance and allelism tests of Raiden soybean for resistance to Soybean mosaic virus. J. Hered. 92:51-55.   • Gunduz, I., G.R. Buss, G. Ma, P. Chen, and S.A. Tolin. 2001. Genetic analysis of resistance to Soybean mosaic virus in OX 670 and Harosoy soybean. Crop Sci. 41:1785-1791.
10. Published prior to 2000 (9):
• Buss, G.R., G. Ma, P. Chen, and S.A. Tolin. 1997. Registration of V94-5152 soybean germplasm resistant to soybean mosaic potyvirus. Crop Science 37:1987-1988.
• Ma, G., P. Chen, G.R. Buss, and S.A. Tolin. 1995. Genetic characteristics of two genes for resistance to Soybean mosaic virus in PI 486355 soybean. Theoretical and Applied Genetics. 91:907-914.
• Chen, P., G.R. Buss, C.W. Roane, and S.A. Tolin. 1994. Inheritance in soybean of resistant and necrotic reactions to Soybean mosaic virus strains. Crop Science 34:414-422.
• Chen, P., G.R. Buss, and S.A. Tolin. 1993. Resistance to Soybean mosaic virus conferred by two independent dominant genes in PI 486355. Journal of Heredity 84:25-28.
• Chen, P., G.R. Buss, C.W. Roane, and S.A. Tolin. 1991. Allelism among genes for resistance to Soybean mosaic virus in strain-differential soybean cultivars. Crop Science 31:305-309.
• Buss, G.R., C.W. Roane, S.A. Tolin, and P. Chen. 1989. Inheritance of reaction to Soybean mosaic virus in two soybean cultivars. Crop Science 29:1439-1441.
• Chen, P. 1985. A study of damages caused by green leaf blight disease and genetics of resistance in corn. Acta Collegia Septentrionli Occidentali Agriculturae 3:91-98.
• Chen, P., and Y. Song. 1984. A method of gametic selection for maize maturity in a backcrossing program. Shaanxi Science and Technology 1:23-24.
• Song, Y., and P. Chen. 1984. First report on green leaf blight disease in corn. Journal of Shaanxi Agricultural Science 4:7-9.