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United States Department of Agriculture

Agricultural Research Service

David A. Dierig

Supervisory Research Geneticist (Plants)


B.S. 1976   Arizona State University; Major, Environmental Resources in
M.S. 1981  Arizona State University; Major, Environmental Resources in 
Ph.D. 1987 The University of Arizona; Major, Agronomy and Plant 

Professional Experience
  • 1987-2009   Research Geneticist-Plants, USDA, ARS, Arid Land
    Agricultural Research Center, Maricopa, AZ  (formerly U.S. Water
    Conservation Laboratory, Phoenix, Arizona).  Adjunct Professor,
    Department of Life Sciences, Arizona State University, Tempe, Arizona
  • 2009-present   Research Leader, Geneticist, USDA, ARS, National Center
    for Genetic Resources Preservation, Fort Collins, Colorado
Professional Societies
  • Association for the Advancement of Industrial Crops - Board of
    Directors (1993-present)
  • Crop Science Society of America, Chair, Crop Registration Committee,
  • American Society for Horticultural Science
  • New Uses Council - Board of Directors (1998-2001)
  • Council for Agricultural Science and Technology - Board of Directors

Allen, S.G., Nakayama, F.S., Dierig, D.A., and Rasnick, B.A. Plant
water relations, photosynthesis, and rubber content of young guayule
plants during water stress.  Agron. J. 79:1030-1035.  1987.

Thompson, A.E., Ray, D.T., Livingston, M., and Dierig, D.A.  Variability
of rubber production and plant growth characteristics among single
plant selections from a diverse guayule breeding population.  J. Am.
Soc. Hort. Sci. 113:608-611.  1988. 

Backhaus, R.A., Higgins, R.R., and Dierig, D.A.  Photoperiodic
induction of flowering guayule. HortScience.   24:939-941. 1989.

Dierig, D.A., Ray, D.T., and Thompson, A.E.  Variation of agronomic
characters among and between guayule lines.  Euphytica. 
44:265-271. 1989. 

Dierig, D.A., Thompson, A.E., and Ray, D.T.  Relationship of
morphological variables to rubber production in guayule.  Euphytica. 
44:259-264. 1989.
Thompson, A.E., Dierig, D.A., and Johnson, E.R.  Yield potential of
Lesquerella fendleri (Gray) Wats., A new desert plant response for
hydroxy fatty acids.  J. Arid Environ. 16:331-336.  1989.

Dierig, D.A., and Backhaus, R.A.  Effect of morphactin and DCPTA on
stem growth and bio-induction of rubber in guayule.  HortScience.
25:531-533. 1990.

Ronis, D.H., Thompson, A.E., Dierig, D.A., and Johnson, E.R.  Isozyme
verification of interspecific hybrids of Cuphea.  HortScience.
25:1431-1434.  1990.

Thompson A.E., Dierig, D.A., Knapp, S. J., and Kleiman, R. Variation
in fatty acid content and seed weight in some lauric acid-rich Cuphea
species.  J. Amer. Oil Chem. Soc. 67:611-617.  1990.

Dierig, D.A., Thompson, A.E., and Ray, D.T.  Effects of field storage
on guayule rubber quantity and quality.  Rubber  Chem. and Tech.
64:211-217.  1991.

Thompson A.E., Dierig, D.A., and White, G.A.  Use of plant
introductions to develop new industrial crop cultivars. pp. 9-48.  In:
Shands, H.L. and Weisner, L.E. (eds.) Use of plant introductions in
cultivar development, Part 2. Crop Sci. Soc. Am.  1992.

Estilai, A., Ehdaie, B., Naqvi, H.H., Dierig, D.A., Ray, D.T., and
Thompson, A.E. Rubber and resin yield performance of new guayule
selections.  Agron. J. 84:420-424.  1992.

Estilai, A., Ehdaie, B., Naqvi, H.H., Dierig, D.A., Ray, D.T., and
Thompson, A.E. Correlations   and path analyses of agronomic traits
in guayule.  Crop Sci.  32:953-957.  1992.

Dierig, D.A., Thompson, A.E., and Nakayama, F.S.  Lesquerella
commercialization efforts in the United States. Indust. Crops and
Prod. 1:289-293.  1993.

Ray, D.T., Dierig, D.A., Thompson, A.E., and Diallo, M.M. 
Parent-offspring relationships in apomictic guayule.  J. Amer. Oil
Chem. Soc.  70:1235-1237.  1993.

Thompson A. E., and Dierig, D.A. Initial selection and breeding of
Lesquerella fendleri, a new industrial oilseed.  Indust. Crops and
Prod. 2:97-106.  1993.
Thompson, A.E., Dierig, D.A., and Kleiman, R. Characterization of
Vernonia galamensis germplasm for seed oil content, fatty acid
composition, seed weight, and chromosome number. Indust. Crops
and Prod. 2:299-305. 1994.

Thompson, A.E., Dierig, D.A., and Kleiman, R.  Variation in Vernonia
flowering characteristics, see oil and vernolic acid
contents.  Indust. Crops and Prod. 3:175-183. 1994

Thompson, A.E., Dierig, D.A., Johnson, E.R. Dahlquist, G.H. and
Kleiman, R. Germplasm development of Vernonia galamensis as a
new industrial oilseed crop. Indust. Crops and Prod. 3:185-200.  1994

Brahim, K., Stumpf, D.K., Ray, D.T., and Dierig, D.A.  Lesquerella
seed oil content and composition: harvest date and plant
population effects.  Indust. Crops and Prod.  5:245-252.  1996.

Nelson, J.M., Dierig, D.A., and Nakayama, F.S.  Planting date and
nitrogen fertilization effects on  lesquerella production.  Indust. Crops
and Prod. 5:217-222.  1996.

Dierig, D.A., Thompson, A.E., Rebman, J.B., Kleiman, R., and Phillips,
B.S.  Collection  and evaluation of new Lesquerella and Physaria
germplasm.  Indust. Crops and Prod.  5:53-63.  1996.

Abbott, T.P., Dierig, D.A., Foster, M.A., Nelson, J.M., Coates, W.E.,
Frykman, H.F.,  Carlson, K.D., and Arquette, J.G.  Current status of
Lesquerella as an Industrial Crop. Inform 8:1169-1175. 1997

Dierig, D.A., Thompson, A.E., and Coffelt, T.A.  Registration of three
Lesquerella fendleri  germplasm lines selected for improved oil traits. 
Crop Sci.  38:287. 1998

Brahim, K., Ray, D.T., and Dierig, D.A., Growth and yield
characteristics of Lesquerella fendleri as a function of plant density. 
Indust. Crops and Prod. 9:63-71. 1998

Hunsaker, D.J., Nakayama, F.S., Dierig, D.A., and Alexander, W.L.
Lesquerella seed production: Water requirement and management.
Indus. Crops and Prod.. 8:167-182. 1998.

Kaufman, B., Richards, S., and Dierig, D.A. DNA isolation from
Lesquerella fendleri with high-polysaccharide. Indust. Crops and Prod.
9:111-114.  1999.

Nelson, J.M., Watson, J.E., and Dierig, D.A., Nitrogen fertilization
effects on lesquerella production.  Indust. Crops and Prod.
19:163-170. 1999.

Ray,  D.T., Dierig, D.A., Thompson, A.E., and Coffelt, T.A. 
Registration of six guayule germplasms with high yield ability. Crop
Science 39:300. 1999.

Tomasi, P.M., Dierig, D.A., Backhaus, R.A., and Pigg, K.B.  Floral bud
and mean petal length as morphological predictors of microspore
cytological stage in lesquerella. HortScience 34:1269-1270. 1999.

Dierig, D.A., Tomasi, P.M., Coffelt, T.A., Rayford, W.E., and Lauver, L.
Registration of a Lesquerella fendleri germplasm with yellow seed
coat color.  Crop Science 40:865-866. 2000.
Grieve, C.M., Poss, J.A., Suarez, D.L., and Dierig D.A. Saline irrigation
water composition affects growth, shoot-ion content and selenium
uptake of lesquerella. Indust. Crops and Prod.13:57-65. 2001.

Bhardwaj, H.L., Hamama, A.A., Rangappa, M.,and Dierig, D.A. 
Vernonia galamensis production in Mid-Atlantic region of U.S.: Results
of experiments with genotypes, fertilizers and herbicides in Virginia.
Indust. Crops and Prod.12:119-124. 2000.

Dierig, D.A., Tomasi, P.M., Dahlquist, G.H. Registration of WCL-LY2
high oil Lesquerella fendleri germplasm.  Crop Sci. 41: 604. 2001.

Dierig, D.A., Shannon, M.C., Grieve, C.M. Registration of WCL-SL1 salt
tolerant  Lesquerella fendleri germplasm. Crop Sci. 41: 604-605. 2001.

Dierig, D.A., Ray, D.T., Coffelt, T.A., Nakayama, F.S., Leake, G.S.,
and Lorenz, G. Heritability of height, width, resin, rubber, and latex,
in guayule (Parthenium argentatum).  Indust. Crops and Prod.
13:229-238. 2001.

Dierig, D.A., Tomasi, P.M., Ray. D.T., Male sterility inheritance in
Lesquerella fendleri (Gray) Wats. J. Am. Soc. Hort. Sci.
126:738-743.  2001.

Grieve, C.M., Poss, J.A., Suarez, D.L., and Dierig D.A. Lesquerella
growth and selenium uptake affected by saline irrigation water
composition. Indust. Crops and Prod.13:57-65. 2001.

 Keys, R.N., Ray, D.T., and Dierig, D.A., Characterization of the
apomictic potential in guayule (Parthenium argentatum) In Vivo and
In Vitro  J. Am. Soc. Hort. Sci. 127:404-408.  2002.

 Dierig, D.A., Grieve, C.M., Shannon, M.C. Selection for salt tolerance
in Lesquerella fendleri (Gray) S. Wats.   Indus. Crops and Prod.
17:15-22. 2003.

 Ploschuk, E.L. Cerdeiras, G., Windauer, L., Dierig, D.A., and Ravetta,
D.A.  Development of alternative Lesquerella species in Patagonia
(Argentina): potential of Lesquerella angustifolia.  Indus. Crops and
Prod. 18:1-6. 2003.

 Dierig, D.A., Tomasi, P.M., Salywon A.M., and Ray, D.T. Improvement
in hydroxy fatty acid seed oil content and other traits from
interspecific hybrids of three Lesquerella species; Lesquerella fendleri,
L. pallida, and L. lindheimeri. Euphytica. 139:199-206. 2004.

Salywon, A.M., Dierig, D.A., Rebman, J.P., and Jasso de Rodríguez,
D. Evaluation of new Lesquerella and Physaria (Brassicaceae) oilseed
germplasm.  Amer. J. Bot. 92:53-62.  2005.

Ray, D.T., Coffelt, T.A., and Dierig, D.A. Breeding guayule for
commercial production. Indus. Crops and Prod. 22:15-25. 2005.

Coffelt, T.A. Ray, D.T., Nakayama, F.S., and Dierig, D.A. Genotypic
and environmental effects on guayule (Parthenium argentatum) latex
and growth. Indust. Crops and Products 22:95-99. 2005.

Salywon, A.M. and Dierig, D.A. Isolation and characterization of
microsatellite loci in Lesquerella fendleri (Brassicaceae) and
cross-species amplification in related species.  Mol. Ecol. Notes.
6:382-384. 2006.

Dierig, D.A., Adam, N.R., Mackey, B.E., Dahlquist, G.H. Coffelt, T.A.
Temperature and elevation effects on plant growth, development ,
and seed production of two Lesquerella species.  Indust. Crops and
Prod. 24:17-25. 2006.

Dierig, D.A., Tomasi, P.M., Salywon, A.M.,  Dahlquist, G.H.,  Isbell,
T.A. Variation of  seed oil composition in parent and S1 generations
of L. fendleri (Brassicaceae).  Indus. Crops and Prod. 274-279. 2006.

Ziprin, R.L., Beier, R.C., Kubena, L.F., McReynolds, J.L., Hume, M.S.,
Evangelista, R.L., Dierig, D.A. Evaluation of the safety and efficacy of
Lesquerella fendleri seed and oils as poultry feed additives.  J. Agri.
and Food Chem. In press.
Adam, N.R., Dierig, D.A., Coffelt, T.A., Wintermeyer, M.J., Mackey,
B.E., Wall, G.W. Cardinal temperatures for germination and early
growth of two Lesquerella  species.  Indust. Crops and Prod.
25:24-33.  2007.

Dierig, D.A., Dahlquist, G.H., and Tomasi, P.M. Registration of
WCL-LO3 high oil Lesquerella fendleri germplasm. Crop Sci.,
46:1832-1833. 2006.

Dierig, D.A., Salywon A.M., and Jasso de Rodríguez, D.  Registration
of lesquerella cream flower mutant genetic stock.  Crop Sci.
46:1836-1837. 2006.

Dierig, D.A. and Ray, D.T. Challenges in developing new plant species
for industrial uses. HortSci. In Press. 2006.

Adam, N.R., Dierig, D.A., Coffelt, T.A., Mackey, B.E., Wall, G.W.
Temperature effects on photosynthesis of two Lesquerella species
under field conditions.  Field Crop Research. In Press. 2006

Dierig, D.A., Thompson, A.E., Ray, D.T., and Coffelt, T.A. Registration
of three day-neutral flowering vernonia germplasms. Crop Sci.
46:2335. 2006
Bhardwaj, H.L., Hamama, A.A., Dierig, D.A., Fatty acids in vernonia
oilseed produced in the mid-Atlantic region of the United States. 
J. Amer. Oil Chem. Soc. 84:393-397. 2007

White, J.W., Dierig, D.A., Tomasi, P., Salywon, A., and Nath, D. 2007.
Harnessing information technologies for more efficient crop
development.  In J. Janick and A. Wipkey (Eds.)  Trends in New Crops
and New Uses. pp 8-18. ASHS Press. Alexandria, VA

Dierig D.A. and Ray D.T.   New Crops Breeding: Lesquerella.
J. Vollmann (Ed.)   Book Chapter Springer scientific publishing house
(New York/Berlin) "Handbook of Plant Breeding: Oilseed Crops
Volume”  In Press

Foster, M.A.  Dierig, D.A., Wintermeyer M.J.  2007. A weed control
program for establishing lesquerella . In (J. Janick and A. Wipkey,
Eds). Trends in New Crops and New Uses. pp. 95-96. ASHS Press.
Alexandria, VA.

Jenderek, M..M. Dierig, D.A., and Isbell, T.A. 2009. Fatty acid profile
of Lesquerella germplasm in the National Plant Germplasm System
collection.  Indust. Crops and Prod. 29:154-164.

Dierig D.A. and Crafts-Brandner, S.J. The relationship of temperature
to plant growth and development of Lesquerella fendleri  Submitted
Crop Science.

Ziprin, Beier, Kubena, McReynolds, Hume, Evangelista, and Dierig.
2008.  Evaluation of the safety and efficacy of Lesquerella fendleri
seed and oils as poultry additives” Clear Blue Knowledge (an on-line

Isbell, T.A. Mund, M.S., Evangelista, R.L. and Dierig, D.A. Method for
analysis of fatty acid distribution and oil content on a single
Lesquerella fendleri seed.  Indust. Crops and Prod. 28:231-236.

Adam, N. R., Coffelt, T. A., and Dierig, D.A. A temperature gradient
table for germination and seedling growth studies (in preparation)


Last Modified: 8/19/2009
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