Kido, E.A., E. Hodson de Jaramillo, F.C. Zelaschi, F.J.L. Aragão, Gutemberg Delfino de Sousa, I. Saad Villegas, J.L. Solleiro Rebolledo, J.C.C. de Faria, M.A. de Melo, M.M. Roca, M. Burachik, P.P. de Andrade, S. Ortiz García and Wayne Parrott. 2012. Guide for the Environmental Safety Assessment of GMOs, IN: P.P. de Andrade, W. Parrott, and M.M. Roca, Eds. ILSI Brasil – International Life Sciences Institute do Brasil. São Paulo, Brasil. En Español PDF e Portugues PDF.

Image of Roca manual

Roca MM, PP de Andrade, W Parrott, & R McDowell. 2023.  Environmental Risk Assessment Guide – Genetically Modified Organisms. 2nd Edition – English Version. International Life Sciences Institute do Brasil, São Paulo, Brasil. English PDF

Parrott Lab Journal Articles:

Check the book chapters out as well
Last modified 02 May 2024

Submitted for Publication:

  • Laspisa D, E Illa-Berenguer, S Bang, RJ Schmitz, W Parrott and J Wallace.  2023.  Mining the Utricularia gibba genome for insulator-like elements for genetic engineering   Front Plant Sci, 14: 1279231. PDF

  • Illa-Berenguer E, PR LaFayette, and A Parrott.  Editing efficiencies with Cas9 orthologs, Cas12a endonucleases, and optimal temperature.  Frontiers, 5. PDF

  • Prías-Blanco M, TM Chappell, EF Freed, E Illa-Berenguer, CA Eckert and WA Parrott. 2023. An Agrobacterium strain auxotrophic for methionine is useful for switchgrass transformation.  Transgenic Research, Transgenic Res, 31: 661–676. PDF


Helliwell EM, P LaFayette, F Arredondo, M. Duquette, A Co, J Vega-Arreguín, S Porter, EJ Borrego, MV Kolomiets, WA Parrott, BM Tyler. 2022.  Transgenic soybeans expressing phosphatidylinositol-3-phosphate-binding proteins show enhanced resistance against the oomycete pathogen Phytophthora sojae.  Frontiers in Microbiology. PDF


  • Taemeh MY, J Lin, DR Ifa, W Parrott & N Kovinich. 2021. Metabolomics of Glycine max QTLs resistant to soybean looper. Metabolites. PDF

  • Wyant SR, MF Rodriguez, CK Carter, WA Parrott, SA Jackson, RM Stupar, PL Morrill. 2021. Fast neutron mutagenesis in soybean enriches for small indels and creates frameshift mutations G3: Genes Genomes Genetics. PDF

  • Carrijo J, E Illa-Berenguer, G Rodrigues Vianna, P LaFayette, N Torres, FJL Aragão and WA Parrott. 2021. Evaluation of the editing efficiency of two CRISPR/Cas9 systems by hairy root. Transgenic Research. 30:239-249. PDF

  • Entine, J, MSS Felipe, JH Groenewald, et al. 2021. Regulatory approaches for genome edited agricultural plants in select countries and jurisdictions around the world. Transgenic Res 30, 551-584. PDF

  • Johnson A, E McAssey, S Diaz, J Reagin, A Strother, PS Redd, DR Parrilla, H Nguyen, A Stec, LAL McDaniel, TE Clemente, RM Stupar, WA Parrott, CN Hancock. 2021. Development of mPing-based activation tags for crop insertional mutagenesis. Plant Direct. PDF


Parrott WA, J Harbell, H Kaeppler, T Jones, D Tomes, J Van Eck, K Wang & A Wenck. 2020. The proposed APHIS regulation modernization could enhance agriculture biotechnology research and development in the USA. In Vitro Cellular & Developmental Biology – Plant 56: 1-7. PDF

Xie M, J Zhang, V Singan, MJ McGranahan, P LaFayette, S Jawdy, N Engle, C Doeppke, T Tschaplinski, M Davis, E Lindquist, K Barry, J Schmutz, W Parrott, F Chen, G Tuskan J-G Chen, and W Muchero. 2020. Identification of functional single nucleotide polymorphism of Populus trichocarpa PtrEPSP-TF and determination of its transcriptional effect. Plant Direct 4:1-13. PDF

  • Ji L, SM Mathioni, S Johnson, D Tucker, AJ Bewick, KD Kim, J Daron, RK Slotkin, SA Jackson, WA Parrott, BC Meyers and RJ Schmitz. 2019. Genome-wide reinforcement of DNA methylation occurs during somatic embryogenesis in soybean. Plant Cell 2019 31: 2315-2331. PDF

  • Ondzighi-Assoume CA, JD Willis, WK Ouma, SM Allen, Z King, WA Parrott, W Liu, JN Burris, SC Lenaghan, and CN Stewart, Jr. 2019. Embryogenic cell suspensions for high capacity genetic transformation and regeneration of switchgrass (Panicum virgatum L.). Biotechnology for Biofuels 12:290. PDF

  • Campbell BW, JW Hoyle, B Bucchiarelli, AO Stec, DA Samac, WA Parrott & RM Stupar. 2019. Functional analysis and development of a CRISPR/Cas9 allelic series for a CPR5 ortholog necessary for proper growth of soybean trichomes. Scientific Reports 9: 14757. PDF

  • Parrott W. 2018. Outlaws, old laws & no laws: the prospects of gene editing for agriculture in the USA. Physiologia Plantarum 164: 406 – 411. PDF

  • Duensing N, T Sprink, WA Parrott, M Fedorova, MA Lema, JD Wolt and D Bartsch. 2018. Novel features and considerations for ERA and regulation of crops produced by genome editing. Frontiers in Bioengineering and Biotechnology 6:9. PDF

  • Biswal AK, MA Atmodjo, M Li, HL Baxter, CG Yoo, Y Pu, Y-C Lee, M Mazerei, IM Black, J-Y Zhang, H Ramann, Al Bray, ZR King, PR LaFayette, S Pattathil, BS Donohoe, SS Mohanty, D Ryno, K Yee, OA Thompson, M Rodriguez Jr, A Dumitrache, J Natzke, K Winkeler, C Collins, X Yang, L Tan, RW Sykes, EL Gjersing, A Ziebell, GB Turner, SR Decker, MG Hahn, BH Davison, MK Uveardi, J Mielenz, MF Davis, RS Nelson, WA Parrott, AJ Ragauskas, CN Stewart Jr, and D Mohnen. 2017. Sugar release and growth of biofuel crops are improved by downregulation of pectin biosynthesis. Nature Biotechnology. 36: 249-257. PDF

  • Kandoth PK, S Liu, E Prenger, A Ludwig, N. Lakhssassi, R Heinz, Z Zhou, A Howland, J Gunther, S Eidson, A Dhroso, P LaFayette, D Tucker, SE Johnson, J Anderson, A Alswad, S Cianzio, WA Parrott, D Korkin, K Meksem, and MG Mitchum. 2017. Systematic mutagenesis of serine hydroxymethyltransferase reveals essential role in nematode resistance. Plant Physiology. 175: 1370 – 1380. PDF

  • Sánchez MA and WA Parrott. 2017. Characterization of scientific studies usually cited as evidence of adverse effects of GM food/feed. Plant Biotechnology Journal. 15(10):1227-1234. PDF

  • Glenn KC, B Alsop, E Bell, M Goley, J Jenkinson, B Liu, C Martin, W Parrott, C Souder, O Sparks, W Urquhart, JM Ward and JL Vincini. 2017. Bringing new plant varieties to market: plant breeding and selection practices advance beneficial characteristics while minimizing unintended changes. Crop Science 57: 6: 2906-2921. PDF

  • Ortega MA, LA Lail, ED Wood, JN All, Z Li, HR Boerma and WA Parrott. 2017. Registration of two soybean germplasm lines containing leaf-chewing insect resistance QTLs from PI 229358 and PI 227687 introgressed into ‘Benning’ Journal of Plant Registrations 11:185-191. PDF

  • Bray AL, LA Lail, JN All, Z Li, and WA Parrott. 2016. Phenotyping techniques and identification of soybean resistance to the kudzu bug. Crop Science. 56: 1807-1816. PDF

  • Heckart DL, BM Schwartz, PL Raymer, and WA Parrott. 2016. Synonymous mutation gene design to overexpress ACCase in creeping bentgrass to obtain resistance to ACCase-inhibiting herbicides. Transgenic Research. PDF

  • Conko G, DL Kershen, HI Miller, and WA Parrott. 2016. A risk-based approach to the regulation of genetically engineered plants. Nature Biotechnology. 34: 493 – 503. PDF

  • Ortega, MA, AJ Davis, HR Boerma, and WA Parrott. 2016. Suitability of soybean meal from insect-resistant soybeans for broiler chickens. J Agric Food Chem. PDF

  • Ortega MA, JN All, HR Boerma, and WA Parrott. 2016. Pyramids of QTLs enhance host-plant resistance and Bt-mediated resistance to leaf-chewing insects in soybean. Theor Appl Genet. 129:703-715. PDF

  • Heckart DL, TM Tate, WA Parrott, and PL Raymer. 2016. In Vitro selection of sethoxydim-resistant creeping bentgrass. Crop Science. 56:845-850. PDF

  • Pierce EC, PR LaFayette, MA Ortega, BL Joyce, DA Kopsell, and WA Parrott. 2015. Ketocarotenoid production in soybean seeds through metabolic engineering. PLOS One. PDF

  • Jacobs T, N Lawler, P LaFayette, L Vodkin, and W Parrott. 2015. Simple gene-silencing using the trans-acting siRNA pathway. Plant Biotechnology Journal. PDF

  • Jacobs, TB, PR LaFayette, MA Ortega, RJ Schmitz, WA Parrott. 2015. Targeted genome modifications in soybean with CRISPR/Cas9. BMC Biotechnology. 15:16. PDF

  • Bartholomeaus A, JC Batista, M Burachik, and W Parrott. 2015. Recommendations from the workshop on comparative approaches to safety assessment of GM plant materials: A road towards harmonized criteria. GM Crops Food 6:69-79. PDF
  • Kanizay LB, TB Jacobs, K Gillespie, JA Newsome, BN Spaid, and WA Parrott. HtStuf: High-throughput sequencing to locate unknown DNA junction fragments. Plant Genome 8(1). PDF

  • Ladics GS, A Bartholomaeus, P Bregitzer, NG Doerrer, A Gray, T. Holzhauser, M Jordan, P Keese, E Kok, P Macdonald, W Parrott, L Privalle, A Raybould, SY Rhee, E Rice, J Romeis, J Vaughn, J-M Wal, and K Glenn. 2015. Genetic basis and detection of unintended effects in genetically modified crop plants. Transgenic Research 24:587-603. PDF

  • Schmidt, M., W. Parrott, D. Hildebrand, R. Berg, A. Cooksey, K. Pendarvis, Y. He, F. McCarthy, E. Herman. 2014. Transgenic soybean seeds accumulating β-carotene exhibit the collateral enhancements of oleate and protein content traits. Plant Biotechnology Journal. PDF

  • Grimshaw, A.L., B.M. Schwartz, T.L. Grey, P.E. McCullough, P.L. Raymer, T.M. Webster, A. Kowalewski, T.M. Tate and W.A. Parrott. 2014. Acetyl-coA carboxylase herbicide tolerance in bermudagrass. Agron. J. 106: 925-930. PDF

  • King, Z.R., A.L. Bray, P.R. LaFayette, and W.A. Parrott. 2014. Biolistic transformation of elite genotypes of switchgrass (Panicum virgatum L.). Plant Cell Reports. 33:313-322. PDF

  • Bartholomaeus, A., W. Parrott, G Bondy and K. Walker. 2013. The use of whole food animal studies in the safety assessment of genetically modified crops: limitations and recommendations. Critical Reviews in Toxicology. 43:1-24. PDF

  • Reyno, R., D.-M. Khu, M.J. Monteros, J.H. Bouton, W. Parrott, and E.C. Brummer. 2013. Evaluation of two transgenes for aluminum tolerance in alfalfa. Crop Science 53:1 – 8. PDF

  • Hardin, C.F., C.Fu, H. Hisano, X. Xaio, H. Shen, C.N. Stewart Jr., W. Parrott, R.A. Dixon, and Z-Y. Wang. 2013. Standardization of switchgrass sample collection for cell wall and biomass trait analysis. Bioenergy Research. PDF

  • Arjó, G., M. Portero, C. Piñol, J. Viñas, X. Matias-Guiu, T. Capell, A. Bartholomaeus, W. Parrott and P. Christou. 2013. Plurality of opinion, scientific discourse and pseudoscience: an in depth analysis of the Séralini et al. study claiming that Roundup® Ready corn or the herbicide Roundup® cause cancer in rats Transgenic Research 22:255 – 267. PDF

  • Steiner, H.-Y., C. Halpin, J. M. Jez, J. Kough, W. Parrott, L. Underhill, N. Weber, and L.C. Hannah. 2013. Evaluating the potential for adverse interactions within genetically engineered breeding stacks. Plant Physiology 161:1587-1594. PDF

  • Cui, Y., S. Barampuram, M.G. Stacey, C.N. Hancock, S. Findley, M. Mathieu, Z. Zhang, W.A. Parrott, and G. Stacey. Tnt1 retrotransposon mutagenesis: A tool for soybean functional genomics. Plant Physiol. 2013 161: 36-47. PDF

  • Weber, N., C. Halpin, L.C. Hannah, J.M. Jez, J. Kough and W. Parrott. 2012. Crop genome plasticity and its relevance to food and feed safety of genetically engineered breeding stacks. Plant Physiol. 160: 1842-1853. PDF

  • Parrott, W.A., J.M. Jez and L.C. Hannah. 2012. To be or not to be transgenic. Nature Biotechnology 30:825-826. PDF

  • Zhang,H., B. Phan, K. Wang, B. Artelt, J. Jiang, W. Parrott, K. Dawe. 2012. Stable integration of an engineered megabase repeat array into the maize genome. The Plant Journal. 70:357–365. PDF

  • Mann,D.G.J., P.R. LaFayette, L.L. Abercrombie, Z.R. King, M. Mazarei, M.C. Halter, C.R. Poovaiah, H. Baxter, H. Shen, R.A. Dixon, W.A. Parrott and C.N. Stewart Jr. 2012. Gateway-compatible vectors for high-throughput gene functional analysis in switchgrass (Panicum virgatum L.) and other monocot species. Plant Biotechnology Journal 10:226-236. PDF

  • Hancock, C.N., F. Zhang, K. Floyd, A.O. Richardson, P. LaFayette, D. Tucker, S.R. Wessler, and W.A. Parrott. 2011. The rice (Oryza sativa) MITE mPing is an effective insertional mutagen in soybean (Glycine max). Plant Physiology 157:552-562. PDF

  • Mann DGJ, ZR King, W Liu , BL Joyce, RJ Percifield, JS Hawkins, PR LaFayette, BJ Artelt, JN Burris, M Mazarei, JL Bennetzen, WA Parrott and CN Stewart Jr. 2011. Switchgrass (Panicum virgatum L.) ubiquitin gene (PvUbi1 and PvUbi2) promoters for use in plant transformation. BMC Biotechnology 11:74. PDF

  • Heckart, D.L., W.A. Parrott, and P.L. Raymer. 2010. Obtaining sethoxydim resistance in seashore paspalum. Crop Science 50:2632-2640. PDF

  • Parrott, W.A. 2010. Genetically modified myths and realities. New Biotechnology. 27:545-551. PDF

  • Parrott, W.A., B. Chassy, J. Ligon, L.Meyer, J. Petrick, J. Zhou, R. Herman, B. Delaney, and M. Levine. 2010. Application of food and feed safety assessment principles to evaluate transgenic approaches to gene modulation in crops. Food and Chemical Toxicology. 48:1773-1790. PDF

  • Tashiro,R.T., Y. Han, M. Monteros, and J. Bouton, and W.A. Parrott. 2010. Leaf trait coloration in white clover and molecular mapping of the red midrib and leaflet number traits . Crop Science 50:1260–1268. PDF

  • Tashiro, R.T., J.H. Bouton, and W.A. Parrott. 2009. ‘Frosty Morning’, ‘Patchwork Quilt’, ‘Irish Mist’, and ‘Pistachio Ice Cream’ ornamental white clover (Trifolium repens L.) Hortscience. 44:1779-1782. PDF

  • Herman, R.A. B.M. Chassy and W. Parrott. 2009. Compositional assessment of transgenic crops: an idea whose time has passed. Trends in Biotechnology 27:555–557. PDF

  • Zhu, S, C.A. Saski, H.R. Boerma, J.P. Tomkins, J.N. All and W.A. Parrott. 2008. Construction of a BAC library for a defoliating insect-resistant soybean and identification of candidate clones using a novel approach. Plant Molecular Biology Reporter. PDF

  • Warrington, C.V., S. Zhu, W.A. Parrott, J.N. All, and H.R. Boerma. 2008. Seed yield of near-isogenic soybean lines with introgressed Quantitative Trait Loci conditioning resistance to corn earworm (Lepidoptera: Noctuidae) and soybean looper (Lepidoptera: Noctuidae) from PI 229358. J. Econ. Entomol. 101:1471-1477. PDF

  • Schmidt, M.A., P.R. LaFayette, B.A. Artelt and W.A. Parrott. 2008. A comparison of strategies for transformation with multiple genes via microprojectile-mediated bombardment. In Vitro Cell. Dev. Biol.-Plant 44:162-168. PDF

  • Barone, P., D. Rosellini, P. LaFayette, J. Bouton, F. Veronesi, and W. Parrott. 2008. Bacterial citrate synthase expression and soil aluminum tolerance in transgenic alfalfa. Plant Cell Rep. 27:893-901. PDF

  • Zhu, S., D.R. Walker, H.R. Boerma, J.N. All and W.A. Parrott. 2008. Effects of defoliating insect resistance QTLs and a cry1Ac transgene in soybean near-isogenic lines. Theor. Appl. Genet. 116:455-463. PDF

  • Zhu, S., D.R. Walker, C.V. Warrington, W.A. Parrott, E.D. Wood, and H.R. Boerma. 2007. Registration of four soybean germplasm lines containing defoliating insect resistance QTLs from PI 229358 introgressed into ‘Benning’. J. Plant Reg. 1:162-163. PDF

  • Phan, B., W. Jin, C. Topp, C. Zhong, J. Jiang, R. Dawe, and W. Parrott. 2006. Transformation of rice with long DNA-segments consisting of random genomic DNA or centromere-specific DNA. Trans. Res. 16:341-351. PDF

  • Zhu, S., D.R. Walker, H.R. Boerma, J.N. All, and W.A. Parrott. 2006. Fine mapping of a major insect resistance QTL in soybean and its interaction with minor resistance QTLs. Crop Sci. 46:1094-1099. PDF

  • LaFayette, P.R., P.M. Kane, B.H. Phan, and W.A. Parrott. 2005. Arabitol dehydrogenase as a selectable marker for rice. Plant Cell Rep. 24:596-602. PDF

  • Schmidt, M.A., D.M. Tucker, E.B. Cahoon, and W.A. Parrott. 2005. Towards normalization of soybean somatic embryo maturation. Plant Cell Rep. 24:383-391. PDF

  • Bradford, K.J., A. Van Deynze, N. Gutterson, W. Parrott, and S.H. Strauss. 2005. Regulating transgenic crops sensibly: Lessons from plant breeding, biotechnology and genomics. Nature Biotechnology 23:439-444. PDF

  • Response: Bradford, K.J., N. Gutterson, W. Parrott, A. Van Deynze, and S.H. Strauss. 2005. Strauss and colleagues respond. Nature Biotechnology 23:787-789. PDF

  • Walker, D.R., J. M. Narvel, H. R. Boerma, J. N. All, and W. A. Parrott. 2004. A QTL that enhances and broadens Bt insect resistance in soybean. Theor. Appl. Genet. 109:1051-1057. PDF

  • Stacey, G., L. Vodkin, W.A. Parrott, and R.C. Shoemaker. 2004. National Science Foundation-sponsored workshop report. Draft plan for soybean genomics. Plant Physiol. 135:59-70. PDF

  • Schmidt, M.A., G.S. Martin, B.A. Artelt, and W.A. Parrott. 2004. Increased transgene expression level by breeding and selection in white clover. Crop Sci. 44:963-967. PDF

  • Rosellini, D., P. LaFayette, P. Barone, F. Veronesi, and W.A. Parrott. 2004. A point mutation in the alfalfa chloroplast DNA conditions for kanamycin resistance. Plant Cell Rep. 22:774-779. PDF

  • Jiang, J., J.A. Birchler, W.A. Parrott, and R.K. Dawe. 2003. A molecular view of plant centromeres. Trends Plant Sci. 8:570-575. PDF

  • Thomson, J.M., P.R. LaFayette, M.A. Schmidt, and W.A. Parrott. 2002. Artificial gene-clusters engineered into plants using a vector system based on intron- and intein-encoded endonucleases. In Vitro-Plant 38:537-542. PDF

  • Beachy, R., J.L. Bennetzen, B.M. Chassy, M. Chrispeels, J. Chory, J.R. Ecker, J.P. Noel, S.A. Kay, C. Dean, C. Lamb, J. Jones, C.R. Santerre, J.I. Schroeder, J. Umen, M. Yanofsky, S. Wessler, Y.D. Zhao, and W. Parrott. 2002. Divergent perspectives on GM food. Nature Biotechnology 20:1195-1196. PDF

  • Sledge, M.K., J.H. Bouton, M. Dall’Agnoll, W.A. Parrott and G. Kochert. 2002. Identification and confirmation of aluminum tolerance QTL in diploid Medicago sativa coerulea. Crop Sci. 42:1121-1128. PDF

  • Walker, D.R., H.R. Boerma, J.N. All and W.A. Parrott. 2002. Combining cry1Ac with QTL alleles from PI 229358 to improve soybean resistance to lepidopteran pests. Mol. Breed. 9:43-51. PDF

  • Dinkins, R., M.S.S. Reddy, C.A. Meurer, B. Yan, J. Finer, F. Thibaud-Nissen, W. Parrott, and G.B. Collins. 2001. Increased sulfur amino acids in soybean plants expressing the maize 15 kDa zein protein. In Vitro Plant.37:742-747. PDF

  • Narvel, J.M., D.R. Walker, B.G. Rector, J.N. All, W.A. Parrott, and H.R. Boerma. 2001. A retrospective DNA marker assessment of the development of insect resistant soybean. Crop Sci. 41: 1931-1939. PDF

  • Schmidt, M.A. and W.A. Parrott. 2001. Quantitative detection of transgenes in soybean (Glycine max (L.) Merrill) and peanut (Arachis hypogaea L.) by real-time PCR. Plant Cell Rep. 20:422-428. PDF

  • Walker, D.R. and W.A. Parrott. 2001. Effect of polyethylene glycol and sugar alcohols on soybean somatic embryo germination and conversion. Plant Cell Tiss Organ Cult. 64:55-62. PDF

  • LaFayette, P.R. and W.A. Parrott. 2001. A non antibiotic marker for amplification of plant transformation vectors in E. coli. Plant Cell Rep. 20:338-342. PDF

  • Meurer, C.A., R.D. Dinkins, C.T. Redmond, K.P. McAllister, D.T. Tucker, D.R. Walker, W.A. Parrott, H.N. Trick, J.S. Essig, H.M. Franz, J.J Finer, and G.B. Collins. 2001. Embryogenic response of multiple soybean [Glycine max (L.) Merrill] cultivars across three locations. In Vitro Plant. 37: 62-67. PDF

  • Walker, D.R., J.N. All, R.M. McPherson, H.R. Boerma, and W.A. Parrott. 2000. Field evaluation of soybean engineered with a synthetic cry1Ac transgene for resistance to corn earworm, soybean looper, velvetbean caterpillar (Lepidoptera: Noctuidae) and lesser cornstalk borer (Lepidoptera: Pyralidae). J. Econ. Entomol. 93:613-622. PDF

  • Bianchi-Hall, C.M., T.E. Carter, Jr., M.A. Bailey, M.A.R. Mian, T.W. Rufty, D.A. Ashley, H.R. Boerma, C. Arellano, R.S. Hussey, and W.A. Parrott. 2000. Aluminum tolerance associated with quantitative trait loci derived from soybean PI 416937 in hydroponics. Crop Sci. 40:538-545. PDF

  • Magbanua, Z.V., H.D. Wilde, J.K. Roberts, K. Chowdhury, J. Abad, J.W. Moyer, H.Y. Wetzstein, and W.A. Parrott. 2000. Field resistance to tomato spotted wilt virus in transgenic peanut (Arachis hypogaea L.) expressing an antisense nucleocapsid gene sequence. Mol. Breed. 6:227-236. PDF

  • Rector, B.G., J.N. All, W.A. Parrott, and H.R. Boerma. 2000. Quantitative trait loci for antibiosis resistance to corn earworm in soybean. Crop Sci. 40:233-238. PDF

  • Little, E.L., Z.V. Magbanua, and W.A. Parrott. 2000. A protocol for repetitive somatic embryogenesis from mature epicotyls of peanut. Plant Cell Rep. 19:351-357. PDF

  • Rector, B.G., J.N. All, W.A. Parrott, and H.R. Boerma. 1999. Quantitative trait loci for antixenosis resistance to corn earworm in soybean. Crop Sci. 39:531-538. PDF

  • Samoylov, V.M., D.M. Tucker, and W.A. Parrott. 1998a. Soybean embryogenic cultures: the role of sucrose and total nitrogen content on proliferation. In Vitro-Plant 34:8-13. PDF

  • Samoylov, V.M., D.M. Tucker, and W.A. Parrott. 1998b. A liquid medium-based protocol for rapid regeneration from embryogenic soybean cultures. Plant Cell Rep. 18:49-54. PDF

  • Thomson, J.M., and W.A. Parrott. 1998. pMECA: A size-based, blue/white selection multiple common and rare-cutter general cloning and transcription vector. BioTechniques. 24:922-927. PDF

  • Hazel, C.B., T.M. Klein, M. Anis, H.D. Wilde, and W.A. Parrott. 1998. Growth characteristics and transformability of soybean embryogenic cultures. Plant Cell Rep. 17:765-772. PDF

  • Rector, B.G., J.N. All, W.A. Parrott, and H.R. Boerma. 1998. Identification of molecular markers linked to quantitative trait loci for soybean resistance to corn earworm. Theor. Appl. Genet. 96:786-790. PDF

  • Tamulonis, J.P., B.M. Luzzi, R.S. Hussey, W.A. Parrott, and H.R. Boerma. 1997c. RFLP mapping of resistance to southern root-knot nematode in soybean. Crop Sci. 37:1903-1909. PDF

  • Tamulonis, J.P., R.S. Hussey, W.A. Parrott, and B.M. Luzzi. 1997b. Molecular markers linked to peanut root-knot nematode. Theor. Appl. Genet. 95:664-670. PDF

  • Tamulonis, J.P., B.M. Luzzi, R.S. Hussey, W.A. Parrott, and H.R. Boerma. 1997a. DNA markers associated with resistance to Javanese root-knot nematode in soybean. Crop Sci. 37:783-788. PDF

  • Trick, H.N., R.D. Dinkins, E.R. Santarem, R. Di, V. Samoylov, C. Meurer, D. Walker, W.A. Parrott, J.J. Finer, and G.B. Collins. 1997. Recent advances in soybean transformation. Plant Tiss. Cult. Biotechnol. 3:9-26. PDF

  • Santos, M.O., M.J. Adang, J.N. All, H.R. Boerma, and W.A. Parrott. 1997. Testing transgenes for insect resistance using arabidopsis. Mol. Breed. 3:183-194. PDF

  • Lee, S.H., M.A. Bailey, M.A.R. Mian, T.E. Carter, Jr., D.A. Ashley, R.S. Hussey, W.A. Parrott, and H.R. Boerma. 1996. Molecular markers associated with soybean plant height, lodging, and maturity across locations. Crop Sci. 36:728-735. PDF

  • Lee, S.H., M.A. Bailey, M.A.R. Mian, T.E., Carter, Jr., E.R. Shipe, D.A. Ashley, W.A. Parrott, R.S. Hussey, and H.R. Boerma. 1996. RFLP loci associated with soybean seed protein and oil content across populations and locations. Theor. Appl. Genet. 93:649-657. PDF

  • Lee, S.H., M.A. Bailey, M.A.R. Tian, E.R. Shipe, D.A. Ashley, W.A. Parrott, R.S. Hussey, and H.R.Boerma. 1996. Identification of quantitative trail loci for plant height, lodging, and maturity in a soybean population segregating for growth habit. Theor. Appl. Genet. 92:516-523. PDF

  • Stewart, C. N., Jr., M.J. Adang, J.N. All, H. R. Boerma, G. Cardineau, D. Tucker, and W.A. Parrott. 1996b. Genetic transformation, recovery, and characterization of fertile soybean (Glycine max (L.) Merrill) transgenic for a synthetic Bacillus thuringiensis CRY IA(c) gene. Plant Physiol. 112:121-129. PDF

  • Stewart, N.S., Jr., M.J. Adang, J.N. All, P. Raymer, S. Ramachandran, and W.A. Parrott. 1996a. Insect control and dosage effects in transgenic canola, Brassica napus L. (Brassicaceae), containing a synthetic Bacillus thuringiensis CryIA(c) gene. Plant Physiol. 112:115-120. PDF

  • Baum, T.J., A. Hiatt, W.A. Parrott, L.H. Pratt, and R.S. Hussey. 1996. Expression in tobacco of a functional monoclonal antibody specific to stylet secretions of the root-knot nematode. Mol. Plant Mic. Int. 9:382-387. PDF

  • Mian, M.A.R., M.A. Bailey, J.P. Tamulonis, E.R. Shipe, T.E. Carter, W.A. Parrott, D.A. Ashley R.S. Hussey, and H.R. Boerma. 1996. Molecular markers associated with seed weight in two soybean populations. Theor. Appl. Genet. 93:1011-1016. PDF

  • Mian, M.A.R., M.A. Bailey, D.A. Ashley, R. Wells, T.E. Carter, Jr., W.A. Parrott, and H.R. Boerma. 1996. Molecular markers associated with water use efficiency and leaf ash in soybean. Crop Sci. 36:1252-1257. PDF

  • Dall’Agnol, M., J.H. Bouton, and W.A. Parrott. 1996. Selection methods to develop alfalfa germplasms tolerant of acid, Al-toxic soils. Crop Sci. 36:64-70. PDF

  • Baker, C.M. R.E. Durham, J.A. Burns, W.A. Parrott and H.Y. Wetzstein. 1995. High frequency somatic embryogenesis in peanut (Arachis hypogaea L.) using mature, dry seed. Plant Cell Rep. 15:38-42. PDF

  • Roylance, J.T., N.S. Hill, and W.A. Parrott. 1994. Detection of somaclonal variation in tissue culture regenerants of tall fescue. Crop Sci. 34:1369-1372. PDF

  • Parrott, W.A., M.J. Adang, M.A. Bailey, J.N. All, H.R. Boerma, and N.S. Stewart. 1994. Recovery and evaluation of soybean plants transgenic for a Bacillus thuringiensis var kurstaki insecticidal gene. In Vitro-Plant. 30P:144-149. PDF

  • Bailey, M.A., H.R. Boerma, and W.A. Parrott. 1994. Inheritance of tumor formation in response to Agrobacterium tumefaciens in soybean. Crop Sci. 34:514-519. PDF

  • Bailey, M.A., W.A. Parrott, and H.R. Boerma. 1993a. Genotype effects on proliferative embryogenesis and plant regeneration of soybean. In Vitro-Plant. 29P:102-108. PDF

  • Bailey, M.A., H.R. Boerma, and W.A. Parrott. 1993b. Genotype-specific optimization of plant regeneration from somatic embryos of soybean. Plant Sci. 93:117-120. PDF

  • Weissinger, A.K., II, and W.A. Parrott. 1993. Repetitive somatic embryogenesis and plant recovery in white clover. Plant Cell Rep. 12:125-128. PDF

  • Parrott, W.A., and M.A. Bailey. 1993. Characterization of recurrent somatic embryogenesis in alfalfa. Plant Cell, Tiss. Org. Cult. 32:69-76. PDF

  • Durham, R.E. and W.A. Parrott. 1992. Repetitive somatic embryogenesis from peanut cultures in liquid medium. Plant Cell Rep. 11:122-125. PDF

  • Hill, N.S., W.A. Parrott, and D.D. Pope. 1991. Ergopeptine alkaloid production by endophytes in a common tall fescue genotype. Crop Sci. 31:1545-1547. PDF

  • Quesenberry, K.H., R.R. Smith, N.L. Taylor, D.D. Baltensperger, and W.A. Parrott. 1991. Genetic nomenclature in clovers and special purpose legumes. I. Red and white clover. Crop Sci. 31:861-867. PDF

  • Kearney, J.F., W.A. Parrott, and N.S. Hill. 1991. Infection of somatic embryos of tall fescue with Acremonium coenophialum. Crop Sci. 31:979-984. PDF

  • Parrott, W.A. 1991. Auxin-stimulated somatic embryogenesis from immature embryos of white clover. Plant Cell Rep. 10:17-21. PDF

  • Parrott, W.A., and J.H. Bouton. 1990. Acid soil and aluminum tolerance in alfalfa as determined in field soil and tissue culture. Crop Sci. 30:387-389. PDF

  • Parrott, W.A., L. Hoffmann, E.G. Williams, D.F. Hildebrand, and G.B. Collins. 1989. Recovery of primary transformants of soybean. Plant Cell Rep. 7:615-617. PDF

  • Parrott, W.A., E.G. Williams, D.F. Hildebrand, and G.B. Collins. 1989. Effect of genotype on somatic embryogenesis from immature cotyledons of soybean. Plant Cell Tiss. Organ Cult. 16:15-21. PDF

  • Parrott, W.A., G. Dryden, S. Vogt, D.F. Hildebrand, B.G. Collins, and E.G. Williams. 1988. Optimizing somatic embryogenesis and embryo germination in soybeans. In Vitro Cell. Dev. Biol. 24:817-820. PDF

  • Parrott, W.A., and R.E. Hanneman, Jr. 1988. Megasporogenesis in Solanum commersonii Dun. Genome 30:536-539. PDF

  • Parrott, W.A., and R.R. Smith. 1986. Recurrent selection for 2n pollen formation in red clover. Crop. Sci. 26:1132-1135. PDF

  • Parrott, W.A., and R.R. Smith. 1986. Evidence for the existence of Endosperm Balance Number in the true clovers (Trifolium spp.). Can. J. Genet. Cytol. 28:581-586. PDF

  • Parrott, W.A., and R.R. Smith. 1986. Description and inheritance of new genes in red clover. J. Hered. 77:351-358. PDF

  • Parrott, W.A., R.R. Smith and M.M. Smith. 1985. Bilateral sexual tetraploidization of red clover. Can. J. Genet. Cytol. 27:64-68. PDF

  • Parrott, W.A., and R.R. Smith. 1984. Production of 2n pollen in red clover. Crop Sci. 24:469-472. PDF

  • Parrott, W.A., and G.B. Collins. 1983. In vitro callus and shoot-tip cultures of eight Trifolium species with regeneration via somatic embryogenesis of T. rubens. Plant Sci. Lett. 28:189-194. PDF