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ARS Home » Southeast Area » New Orleans, Louisiana » Southern Regional Research Center » Cotton Fiber Bioscience Research » People » Gregory Thyssen

Gregory N Thyssen

Research Biologist

Research Computational Biologist

Tel: (504)286-4280

Cotton Fiber Bioscience Research Unit

USDA-ARS, Southern Regional Research Center

1100 Allen Toussaint  Blvd

New Orleans, LA 70124-4305


 Link to Google Scholar

Peer-Reviewed Journal Articles and Patents (44)


  1. Li, X., Thyssen, G., Beliakoff, J., and Sun, Z. The novel PIAS-like protein hZimp10 enhances Smad transcriptional activity. Journal of Biological Chemistry. 281(33):23748-23756. 2006.
  2. Thyssen, G., Li, T.H., Lehmann, L., Zhuo, M., Sharma, M., and Sun, Z. LZTS2 is a novel β-catenin-interacting protein and regulates the nuclear export of β-catenin. Molecular and Cellular Biology. 26(23):8857-8867. 2006.
  3. Thyssen, G., Svab, Z., and Maliga, P. Cell-to-cell movement of plastids in plants. Proceedings of the National Academy of Sciences. 109(7):2439-2443. 2012.
  4. Thyssen, G., Svab, Z., and Maliga, P. Exceptional inheritance of plastids via pollen in Nicotiana sylvestris with no detectable paternal mitochondrial DNA in the progeny. The Plant Journal. 72(1):84-88. 2012.
  5. Gilbert, M.K., Turley, R.B., Kim, H.J., Li, P., Thyssen, G.N., Tang, Y., Delhom, C.D., Naoumkina, M.A., and Fang, D.D. Transcript profiling by microarray and marker analysis of the short cotton (Gossypium hirsutum ) fiber mutant Ligon lintless-1 (Li1). Biomed Central (BMC) Genomics. 14:403. 2013.
  6. Fang, D.D., Hinze, L.L., Percy, R.G., Li, P., Deng, D.D., and Thyssen, G.N. A microsatellite-based genome-wide analysis of genetic diversity and linkage disequilibrium in Upland cotton (Gossypium hirsutum ) cultivars from major cotton-growing countries. Euphytica. 191:391-401. 2013.
  7. Thyssen, G.N., McCarty, J.C., Li, P., Jenkins, J.N., and Fang, D.D. Genetic mapping of non-target-site resistance to a sulfonylurea herbicide (Envoke®) in Upland cotton (Gossypium hirsutum ). Molecular Breeding. 33:341-348. 2014.
  8. Maliga, P., Maliga, Z.S., and Thyssen, G.N.S. Patent Number 13/930,378. Rutgers State University of New Jersey, assignee. Intercellular transfer of organelles in plants for horizontal transfer of DNA expressing proteins of interest. March 13, 2014.
  9. Thyssen, G.N., Song, X., Naoumkina, M.A., Kim, H.J., and Fang, D.D. Independent replication of mitochondrial genes supports the transcriptional program in developing fiber cells of cotton (Gossypium hirsutum ). Gene. 544:41-48. 2014.
  10. Thyssen, G.N., Fang, D.D., Turley, R.B., Florane, C.B., Li, P., and Naoumkina, M.A. Next generation genetic mapping of the Ligon-lintless-2 (Li2) locus in upland cotton (Gossypium hirsutum ). Theoretical and Applied Genetics. 127:2183-2192. 2014.
  11. Naoumkina, M.A., Thyssen, G.N., Fang, D.D., Hinchliffe, D.J., Florane, C.B., Yeater, K.M., Page, J.J., and Udall, J.A. The Li2 mutation results in reduced subgenome expression bias in elongating fibers of allotetraploid cotton (Gossypium hirsutum ). PLoS One. 9(3):e90830. 2014.
  12. Islam, M.S., Thyssen, G.N., Jenkins, J.N., and Fang, D.D. Detection, validation, and application of genotyping-by-sequencing based single nucleotide polymorphisms in upland cotton. The Plant Genome. 8(1):1-10. 2014.
  13. Gore, M.A., Fang, D.D., Poland, J.A., Zhang, J., Percy, R.G., Cantrell, R.G., and Thyssen, G.N. Linkage map construction and QTL analysis of agronomic and fiber quality traits in cotton. The Plant Genome. 7(1):1-10. 2014.
  14. Thyssen, G.N., Fang, D.D., Turley, R.B., Florane, C.B., Li, P., and Naoumkina, M.A. Mapping-by-sequencing of Ligon-lintless-1 (Li1) reveals a cluster of neighboring genes with correlated expression in developing fibers of Upland cotton (Gossypium hirsutum ). Theoretical and Applied Genetics. 128:1703-1712. 2015.
  15. Naoumkina, M.A., Thyssen, G.N., and Fang, D.D. RNA-seq analysis of short fiber mutants Ligon-lintless-1 (Li1) and – 2 (Li2) revealed important role of aquaporins in cotton (Gossypium hirsutum) fiber elongation. Biomed Central (BMC) Plant Biology. 15:65. 2015.
  16. Kim, H.J., Hinchliffe, D.J., Triplett, B.A., Chen, Z.J., Stelly, D.M., Yeater, K.M., Moon, H.S., Gilbert, M.K., Thyssen, G.N., Turley, R.B., and Fang, D.D. Phytohormonal networks promote differentiation of fiber initials on pre-anthesis cotton ovules grown in vitro and in planta. PLoS ONE. 10(4):e0125046. 2015.
  17. Thyssen, G.N., Fang, D.D., Zeng, L., Song, X., Delhom, C.D., Condon, T.L., Li, P., and Kim, H.J. The immature fiber mutant phenotype of cotton (Gossypium hirsutum) is linked to a 22-bp frame-shift deletion in a mitochondria targeted pentatricopeptide repeat gene. G3, Genes/Genomes/Genetics. 6:1627-1633. 2016.
  18. Naoumkina, M.A., Thyssen, G.N., Fang, D.D., Hinchliffe, D.J., Florane, C.B., and Jenkins, J.N. Small RNA sequencing and degradome analysis of developing fibers of short fiber mutants Ligon-lintles-1 (Li1) and -2 (Li2) revealed a role for miRNAs and their targets in cotton fiber elongation. BMC Genomics. 17:360. 2016.
  19. Islam, M.S., Thyssen, G.N., Jenkins, J.N., Zeng, L., Delhom, C.D., McCarty, J.C., Deng, D.D., Hinchliffe, D.J., Jones, D.C., and Fang, D.D. A MAGIC population-based genome-wide association study reveals functional association of GhRBB1_A07 gene with superior fiber quality in cotton. BMC Genomics. 17:903. 2016.
  20. Islam, M.S., Fang, D.D., Thyssen, G.N., Delhom, C.D., Liu, Y., and Kim, H.J. Comparative fiber property and transcriptome analyses reveal key genes potentially related to high fiber strength in cotton (Gossypium hirsutum ) line MD52ne. Biomed Central (BMC) Plant Biology. 16:36. 2016.
  21. Islam, M.S., Zeng, L., Thyssen, G.N., Delhom, C.D., Kim, H.J., Li, P., and Fang, D.D. Mapping by sequencing in cotton (Gossypium hirsutum) line MD52ne identified candidate genes for fiber strength and its related quality attributes. Theoretical and Applied Genetics. 129:1071-1086. 2016.
  22. Hinchliffe, D.J., Condon, B.D., Thyssen, G.N., Naoumkina, M.A., Madison, C.A., Reynolds, M.L., Delhom, C.D., Fang, D.D., Li, P., and McCarty Jr, J.C. The GhTT2_A07 gene is linked to the brown colour and natural flame retardancy phenotypes of Lc1 cotton (Gossypium hirsutum ) fibres. Journal of Experimental Botany. 67(18):5461-5471. 2016.
  23. Santiago Cintron, M., Montalvo, J.G., Von Hoven, T.M., Rodgers, J.E., Hinchliffe, D.J., Madison, C.A., Thyssen, G.N., and Zeng, L. Infrared imaging of cotton fiber bundles using a focal plane array detector and a single reflectance accessory. Fibers. 4(27):1-11. 2016.
  24. Thyssen, G.N., Fang, D.D., Turley, R.B., Florane, C.B., Li, P., Mattison, C.P., and Naoumkina, M.A. A Gly65Val substitution in an actin, GhACT_LI1, disrupts cell polarity and F-actin organization resulting in dwarf, lintless cotton plants. The Plant Journal. 90(1):111-121. 2017.
  25. Naoumkina, M.A., Bechere, E., Fang, D.D., Thyssen, G.N., and Florane, C.B. Genome-wide analysis of gene expression of EMS-induced short fiber mutant Ligon lintless-y (liy) in cotton (Gossypium hirsutum ). Genomics. 109:320-329. 2017.
  26. Naoumkina, M.A., Hinchliffe, D.J., Fang, D.D., Florane, C.B., and Thyssen, G.N. Role of xyloglucan in cotton (Gossypium hirsutum ) fiber elongation of the short fiber mutant Ligon-lintless-2 (Li2). Gene. 626:227-233. 2017.
  27. Thyssen, G.N., Naoumkina, M.A., McCarty, J.C., Jenkins, J.N., Florane, C.B., Li, P., and Fang, D.D. The P450 gene CYP749A16 is required for tolerance to the sulfonylurea herbicide trifloxysulfuron sodium in cotton (Gossypium hirsutum ). Biomed Central (BMC) Plant Biology. 18:186. 2018.
  28. Thyssen, G.N., Jenkins, J.N., McCarty, J.C., Zeng, L., Campbell, B.T., Delhom, C.D., Islam, M.S., Li, P., Jones, D.C., Condon, B.D., and Fang, D.D. Whole genome sequencing of a MAGIC population identified genomic loci and candidate genes for major fiber quality traits in upland cotton (Gossypium hirsutum ). Theoretical and Applied Genetics. 132:989-999. 2018.
  29. Naoumkina, M.A., Thyssen, G.N., Fang, D.D., Jenkins, J.N., McCarty, J.C., and Florane, C.B. Genetic and transcriptomic dissection of the fiber length trait from a cotton (Gossypium hirsutum ) MAGIC population. BMC Genomics. 20:112. 2019.
  30. Kim, H.J., Thyssen, G.N., Song, X., Delhom, C.D., and Liu, Y. Functional divergence of cellulose synthase orthologs in between wild Gossypium raimondii and domesticated arboreum diploid cotton species. Cellulose. 26:9483-9501. 2019.
  31. Zhang, J., Abdelraheem, A., Thyssen, G.N., Fang, D.D., Jenkins, J.N., McCarty Jr, J.C., and Wedegaertner, T. Evaluation and genome-wide association study of Verticillium wilt resistance in a MAGIC population derived from intermating of eleven Upland cotton (Gossypium hirsutum) parents. Euphytica. 216:9. 2019.
  32. Wubben, M.J., Thyssen, G.N., Callahan, F.E., Fang, D.D., Deng, D.D., McCarty, J.C., Li, P., Islam, M.S., and Jenkins, J.N. A novel variant of Gh_D02G0276 is required for root-knot nematode resistance on chromosome 14 (D02) in Upland cotton. Theoretical and Applied Genetics. 132:1425-1434. 2019.
  33. Maliga, P., Maliga, Z.S., Gurdon, C., and Thyssen, G.N.S. Patent Number 10,563,212. Rutgers State University of New Jersey, assignee. Intercellular transfer of organelles in plant species for conferring cytoplasmic male sterility. February 18, 2020.
  34. Fang, D.D., Naoumkina, M.A., Thyssen, G.N., Bechere, E., Li, P., and Florane, C.B. An EMS-induced mutation in a tetratricopeptide repeat-like superfamily protein gene (Ghir_A12G008870) on chromosome A12 is responsible for the liy short fiber phenotype in cotton. Theoretical and Applied Genetics. 133(1):271-282. 2020.
  35. Naoumkina, M.A., Zeng, L., Fang, D.D., Wang, M., Thyssen, G.N., Florane, C.B., Li, P., and Delhom, C.D. Mapping and validation of a fiber length QTL on chromosome D11 using two independent F2 populations of upland cotton. Molecular Breeding. 40:31. 2020.
  36. Li, Z., Wang, P., You, C., Yu, J., Zhang, X., Yan, F., Ye, Z., Shen, C., Li, B., Guo, K., Liu, N., Thyssen, G.N., Fang, D.D., Lindsey, K., Zhang, X., Wang, M., and Tu, L. Combined GWAS and eQTL analysis uncovers a genetic regulatory network orchestrating the initiation of secondary cell wall development in cotton. New Phytologist. 226:1738-1752. 2020.
  37. Adbelraheem, A., Thyssen, G.N., Fang, D.D., Jenkins, J.N., McCarty, J.C., Wedegertner, T., and Zhang, J. GWAS reveals consistent QTL for drought and salt tolerance in a MAGIC population of 550 lines derived from intermating of 11 Upland cotton (Gossypium hirsutum) parents. Molecular Genetics and Genomics. 296(1):119-129. 2020.
  38. Naoumkina, M.A., Thyssen, G.N., Fang, D.D., Li, P., and Florane, C. Elucidation of sequence polymorphism in fuzzless-seed cotton lines. Molecular Genetics and Genomics. 296(1):193-206. 2020.
  39. Fang DD, Zeng L, Thyssen GN, Delhom CD, Bechere E, Jones DC, Li P. Stability and transferability assessment of the cotton fiber strength QTL qFS-c7-1 on chromosome A07. The Crop Journal. 9(2):380-6. 2021
  40. Naoumkina M, Thyssen GN, Fang DD, Bechere E, Li P, Florane CB. Mapping-by-sequencing the locus of EMS-induced mutation responsible for tufted-fuzzless seed phenotype in cotton. Molecular Genetics and Genomics. 296(5):1041-9. 2021
  41. Kim HJ, Kato N, Ndathe R, Thyssen GN, Jones DC, Ratnayaka HH. Evidence for thermosensitivity of the cotton (Gossypium hirsutum) immature fiber (im) mutant via hypersensitive stomatal activity. PloS One. 16(12):e0259562. 2021
  42. Jenkins JN, McCarty Jr JC, Hayes RW, Wubben MJ, Fang DD, Thyssen GN, Zeng L, Campbell BT, Jones DC. Registration of seven recombinant inbred lines of upland cotton with improved fiber length or strength. Journal of Plant Registrations. 16(1):94-9. 2022
  43. Wang M, Qi Z, Thyssen GN, Naoumkina M, Jenkins JN, McCarty JC, Xiao Y, Li J, Zhang X, Fang DD. Genomic interrogation of a MAGIC population highlights genetic factors controlling fiber quality traits in cotton. Communications biology. 5(1):1-2. 2022
  44. Zhu Y, Thyssen GN, Abdelraheem A, Teng Z, Fang DD, Jenkins JN, McCarty JC, Wedegaertner T, Hake K, Zhang J. A GWAS identified a major QTL for resistance to Fusarium wilt (Fusarium oxysporum sp. vasinfectum) race 4 in a MAGIC population of Upland cotton and a meta-analysis of QTLs for Fusarium wilt resistance. Theoretical and Applied Genetics. 16:1-6. 2022