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   Authors
 Home>Communications>Authors>
Name: Prasanta Subudhi
Title: Professor
Specialization: Plant Genetics and Genomics
E-mail:
Department: School of Plant, Environmental and Soil Sciences
Organization: LSU AgCenter
Address 1: 215 M.B. Sturgis
Address 2: Baton Rouge, LA 70803
Phone Number: (225) 578-1303
Fax Number: (225) 578-1403

Education/Training

B.S. in Agriculture, Orissa University of Agriculture and Technology, 1982
M.S. in Agriculture (Plant Breeding & Genetics), Orissa Univ. of Agric.and Technology, 1984
Ph.D. in Genetics, Indian Agricultural Research Institute, 1992
Areas of Specialization/Research
  • Breeding and genetics of abiotic stress tolerance in rice
  • Genetics of complex domestication traits in rice
  • Genetics of resistance to aflatoxin accumulation in corn
  • Genetic improvement of coastal plant species of South Louisiana

Drought and salinity are major climate-related risks for sustainable rice production. Development of abiotic stress tolerant rice cultivars is needed to enhance food security under future climatic uncertainties. The major bottleneck to accomplish this goal is the narrow genetic base of US rice germplasm, which needs to be expanded through introgression of novel abiotic stress tolerance genes from stress tolerant donors. However, precise introgression of novel genes from the tolerant donors, which are low yielding indica landraces with many undesirable traits, will be needed. Therefore, we are employing different mapping populations such as recombinant inbred lines (RIL) and introgression lines from several cross combinations to discover and validate quantitative trait loci (QTL) for various morphological and physiological attributes conferring abiotic stress tolerance. Our ultimate goal is to integrate the abiotic stress related QTL information with the genotypically and phenotypically characterized prebreeding lines to develop improved pyramided lines to minimize the impact of climate change.

We are using US red rice as a model for analyzing the molecular basis of many complex domestication related traits. Red rice is a weedy form of rice characterized by high genetic flexibility and phenotypic plasticity. We have synthesized several mapping populations to investigate the molecular basis of its weedy attributes. Discovery of the molecular alteration in genes associated with these domestication related traits, such as seed dormancy, seed shattering, rapid seedling growth, competitiveness, deep root system, environmental plasticity, plant height, flowering, inflorescence and seed characteristics is critical for a thorough understanding of weed biology, as well as for discovering new avenues to improve crop productivity.

Aflatoxin contamination is a recurring problem in all southeastern corn growing states due to the prevalence of high temperatures and drought conditions during the grain-filling period. Aflatoxins pose serious health hazard to both animals and humans. Use of host plant resistance to develop corn hybrids is the most practical solution to minimize aflatoxin contamination. Our goal in this project is to elucidate the molecular basis of aflatoxin resistance mechanisms which will accelerate development of superior inbred lines using marker-assisted selection.

Our coastal plants research activities include development and application of molecular markers for DNA fingerprinting and genetic diversity studies, molecular biology of salinity tolerance in smooth cordgrass, and micropropagation in sea oats. The overall goal of the coastal plants genetics research project is to generate knowledge and technology to accelerate development of improved plant materials in native plant species for coastal restoration. More information about our research activities is available in the Coastal Plants Genetics Laboratory website (http://www.agronomy.lsu.edu/coastallab/home.asp).
Professional Experience

2013-Present: Professor, LSU Agricultural Center
2007-2013: Associate Professor, LSU Agricultural Center
2001-2007: Assistant Professor-Research, LSU Agricultural Center
1996-2000: Postdoctoral Researcher, Texas Tech University
1994-1996: Project Scientist, International Rice Research Institute, Philippines

Teaching Experience

I teach Applied Plant Genomics (AGRO 7080). This graduate level course is offered in fall of each odd year. The objective of this course is to familiarize the students to the modern molecular and genomics tools, which are now routinely used in both private and public sector plant breeding programs.

Publications/Presentations/Patents

Refereed Journals

Subudhi PK, Magpantay GB, Karan R (2013) A retrotransposon-based probe for fingerprinting and evolutionary studies in rice (Oryza sativa). Genetic Resources and Evolution 60:1263-1273.

Knott C, Materne MD, Utomo H, Subudhi PK, Baisakh N, Harrison SA (2013) Registration of ‘St. Bernard’, ‘Las Palomas’ and ‘Lafourche’ smooth cordgrass cultivars. J Plant Registrations 7:12-17.

Karan R, Subudhi PK (2012a) A stress inducible SUMO conjugating enzyme gene of a grass halophyte Spartina alterniflora (SaSce9) enhances salinity and drought stress tolerance in Arabidopsis. BMC Plant Biol 12:187.

Knott C, Materne MD, Subudhi PK, Baisakh N, Utomo HS, Harrison SA (2012) Registration of sea oats cultivars ‘LA12-201’, LA12-202’, and ‘LA12-203’. Journal of Plant Registrations Journal of Plant Registrations 6:1-5.

Karan R, Subudhi PK (2012b) Overexpression of a nascent polypeptide associated complex gene (SaßNAC) of Spartina alterniflora improves tolerance to salinity and drought in transgenic Arabidopsis. Biochem Biophys Res Comm 424:747-752.

Subudhi PK, Parco A, Singh PK, Deleon T, Karan R, Biradar H, Cohn MA, Brar DS, Sasaki T (2012) Genetic architecture of seed dormancy in us weedy rice in different genetic backgrounds. Crop Sci 52:2564-2575.

Karan R, DeLeon T, Biradar H, Subudhi PK (2012) Salt stress induced variation in DNA methylation pattern and its influence on gene expression in contrasting rice genotypes. PLoS ONE 7(6):e40203.

Knott C, Materne MD, Utomo HS, Subudhi PK, Baisakh N, Harrison SA (2012) Registration of smooth cordgrass cultivars ‘LA11-101’, LA11-102’, and ‘LA11-103’. J Plant Registrations 6:1-7.

Baisakh N, RamanaRao MV, Rajasekaran K, Subudhi P, Janda J, Galbraith D, Vanier C, Pereira A (2012) Enhanced salt stress tolerance of rice plants expressing a vacuolar H+-ATPase subunit c1 (SaVHAc1) gene from the halophyte grass Spartina alterniflora Löisel. Plant Biotech J 10:453-464.

Bertrand SE, Knott C, Baisakh N, Subudhi PK, Harrison SA, Materne MD, Utomo HS (2012) Selection of genetically diverse sea oats lines with improved performance for coastal restoration in the northern Gulf of Mexico. Euphytica 185:103-117.

Subudhi PK, Baisakh N (2011) Spartina alterniflora Loisel., a halophyte grass model to dissect salt stress tolerance. In Vitro Cell Dev Biol – Plant 47:441-457.

Dwivedi S, Upadhyaya H, Subudhi P, Gehring C, Bajic V, Ortiz R (2010) Enhancing abiotic stress tolerance in cereals through breeding and transgenic interventions. Plant Breeding Review 33:31-114.

Baisakh N, Subudhi PK, Arumuganathan K, Parco AP, Harrison SA, Knott CA, Materne MD (2009) Development and interspecific transferability of genic microsatellite markers in Spartina spp with different genome size. Aquatic Bot 91:262-266.

Baisakh N, PK Subudhi (2009) Heat stress alters the expression of salt stress induced genes in smooth cordgrass (Spartina alterniflora L.) Plant Physiol Biochem 47:232-235.

Subudhi PK, Parami NP, Materne MD, Harrison SA (2008) Genetic diversity in Spartina alterniflora (Loisel.) from brown marsh areas of Louisiana. J Aquatic Plant Management 46:60-67.

Baisakh N, Subudhi PK, Bhardwaj P (2008) Primary responses to salt stress in a halophyte, smooth cordgrass (Spartina alterniflora Loisel. Funct Integr Genomics 8:287-300.

Ryan AB, Venuto BC, Subudhi PK, Harrison SA, Shadow RA, Fang X, Materne M, Utomo H (2007) Identification and genetic characterization of smooth cordgrass for coastal wetland restoration. J Aquatic Plant Management 45:90-99.

Harris K, Subudhi PK, Borrell A, Jordan D, Rosenow D, Nguyen H, Klein P, Klein R, Mullet J (2007) Sorghum stay-green QTL individually reduce post-flowering drought-induced leaf senescence. J Exp Bot 58:327-338.

Baisakh N, Subudhi PK, Parami NP (2006) cDNA-AFLP analysis reveals differential gene expression in response to salinity in a halophyte Spartina alterniflora Loisel. Plant Sci 170:1141-1149.

Subudhi PK, Parami NP, Harrison SA, Materne MD, Murphy JP, Nash D (2005) An AFLP-based genetic survey of sea oats (Uniola paniculata) accessions of the United States. Theor Appl Genet 111: 1632-1641.

Fang X, Subudhi PK, Venuto BC, Harrison SA (2004) Mode of pollination, pollen germination, and seed set in smooth cordgrass (Spartina alterniflora, Poaceae). Intl J Plant Sci 165:395-401.

Fang X, Subudhi PK, Harrison SA, Venuto BC, Ryan A (2004) Influence of flowering phenology on seed production in smooth cordgrass (Spartina alterniflora Loisel.). Aquatic Bot 80:139-151.

Louisiana Agriculture Articles

Knott CA, Utomo H, Subudhi PK (2012) LSU AgCenter first in the nation to patent native plant varieties for coastal restoration. 55 (4).

Harrison SA, Baisakh N, Materne MD, Knott C, Subudhi PK, Utomo H (2007) Breeding native coastal plants for use in coastal wetland reclamation and preservation. Louisiana Agriculture 50 (2):18-19.

Subudhi PK, Baisakh N, Sahoo DM, Harrison SA, Materne MD, Utomo H. 2007. Sea oats: micropropagation aids in coastal restoration. Louisiana Agriculture 50 (2):20.

Subudhi PK, Baisakh N, Harrison SA, Materne MD, Utomo H (2007) Plant genetic diversity: Essential for a dynamic Louisiana coast. Louisiana Agriculture 50 (2):21.

Utomo HS, Materne MD, Harrison SA, Subudhi PK, Baisakh N (2007). Improved marsh plants and seed-based propagation. Louisiana Agriculture 50 (2):22-23.

Subudhi PK, Parami N, Ryan A, Harrison SA (2003) Rescuing the coast with biotechnology. Louisiana Agriculture 46 (4):42-44.

Harrison SA, Croughan TP, Materne MD, Venuto BC, Breitenbeck GA, Cohn MA, Fang X, Ryan A, Schneider RW, Shadow RA, Subudhi P, Utomo H (2001) Improving native plants to protect and preserve Louisiana’s coastal marshes. Louisiana Agriculture 44 (3):4-6.

Abstracts of the posters/papers in conferences/symposia/meetings

Subudhi PK, Karan R (2013) Overexpression of SaARF gene, an Adenosine diphosphate-ribosylation factor from Spartina alterniflora, confers enhanced osmotic stress tolerance in Arabidopsis. Plant and Animal Genome XXI, San Diego, CA, Jan 12-16, 2013. Final abstract guide pp262, Poster No. 839.

Karan R, Subudhi PK (2012) A multiple stress-inducible SUMO conjugating enzyme gene “SaSCE9” of Spartina alterniflora enhances salinity and drought tolerance in Arabidopsis. IPG2012 Conference University of Missouri, Columbia, May 23-25, 2012.

Knott C, Materne M, Utomo H, Subudhi PK, Baisakh N, Harrison S (2012) LSU AgCenter releases three smooth cordgrass varieties for saline marsh restoration projects. State of the Coast Conference, New Orleans, June 25-27, 2012.

Subudhi PK, Parco A, Singh PK, DeLeon T, Karan R, Biradar H, Cohn MA (2012) Genetic dissection of two key domestication traits, seed dormancy and seed shattering, in the U.S. weedy rice. The 34th RTWG meeting. Hot Springs, AR 71901, February 27 – March 1, 2012 (Oral).

Shrestha BK, Karki HS, Groth DE, Sha X, Subudhi P, Utomo H, Ham JH (2012) Development of Quantitative Trait Loci (QTL) Mapping and breeding programs to improve rice resistance to bacterial panicle blight and sheath blight. The 34th RTWG meeting. Hot Springs, AR 71901, February 27 – March 1, 2012 (Poster).

Subudhi PK, Sha X, Linscombe S (2012) Breeding for salt tolerance in rice. The 34th RTWG meeting. Hot Springs, AR 71901, February 27 – March 1, 2012 (Poster).

Karan R, Deleon T, Biradar H, Subudhi P (2012) Epigenetic influence on gene expression under salinity stress in salt tolerant and salt susceptible rice cultivars. Plant and Animal Genome XX, San Diego, CA, Jan 14-18, 2012. Final abstract guide, Poster No. 272.

Biradar H, Karan R, Baisakh N, Subudhi P (2012) Constitutive expression of a plasma membrane protein gene, SaPMP3, from Spartina alterniflora L. enhances salinity tolerance of rice (Oryza sativa L.). Southern region ASA meeting Birmingham, AL. Feb 5-6, 2012.

Subudhi PK, Ham JH, Hoy JW, Kimbeng CA, Baisakh N (2012) Marker-assisted breeding to enhance disease resistance in corn, rice, and sugarcane. Annual USDA-NIFA PD meeting Jan 13, 2012, San Diego, CA.

Bernaola L, Venkata M, Knott C, Harrison S, Materne M, Subudhi P, Baisakh N (2011) Genetic diversity of smooth cordgrass (Spartina alterniflora Loisel) collections in Louisiana. ASA-CSSA-SSSA International Annual Meeting, Oct 16-19, 2011, San Antonio, TX, Poster No. 221-2.

Ham J, Karki HS, Shrestha B, Barphagha IK, Melanson RA, Chen R, Groth DE, Sha X, Utomo H, Subudhi P, Rush MC (2011) Molecular genetic and genomic studies on bacterial panicle blight of rice and its causative agent Burkholderia glumae. Phytopathology 101:S266.

Baisakh N, Ramana Rao MV, Rajasekaran K, Subudhi P, Janda J, Galbraith D, Vanier C, Pereira A (2011) A vacuolar proton pump (SAVHAc1) from halophyte Spartina alterniflora confers salt-tolerance phenotype in transgenic plants through various physiological adjustments. Plant and Animal Genome XIX, San Diego, CA, Jan 15-19, 2011. Final abstract guide, p: 251 (Poster No. 730).

Subudhi PK, Parco A, Singh P, Deleon T, Biradar H, Cohn MA (2011) Genetic dissection of seed shattering and seed dormancy in US red rice. Plant and Animal Genome XIX, San Diego, CA, Jan 15-19, 2011. Final abstract guide, p: 201 (Poster No. 267).

Subudhi PK, Ham J, Kimbeng CA, Hoy JW, Baisakh N (2011) Marker-assisted breeding to enhance disease resistance in corn, rice, and sugarcane. USDA-NIFA Agriculture and Food Research Initiative, Plant Genome, Genetics, and breeding Programs Project Directors Meeting, San Diego, CA, Jan 14, 2011. Annual Report, Pp 152-154.

Knott C, Bertrand S, Baisakh N, Subudhi P (2010) Genetic diversity of selected sea oats (Uniola paniculata L.) lines. ASA-CSSA-SSSA International Annual Meeting, Long beach, CA, Oct 31-Nov 3, 2010.

Subudhi PK, Parco A, Singh PK, DeLeon T, Biradar HR, Cohn MA (2010) Quantitative trait loci for seed shattering and seed dormancy in weedy red rice. ASA-CSSA-SSSA International Annual Meeting, Long beach, CA, Oct 31-Nov 3, 2010 (Oral presentation on 3rd Nov 2010).

Subudhi PK, Parco A, Singh P, Deleon T, Cohn MA (2010) Marker-aided development and characterization of an introgression library to discover alleles for weediness: red rice as a model system. USDA-AFRI Project Directors meeting held with Society of Range Management and Weed Science Society of America, Feb 7-11, 2010, Denver, CO.

Knott C, Bertrand S, Baisakh N, Subudhi PK (2010) Genetic diversity of selected sea oats (Uniola paniculata L.) lines. State of the Coast Conference, Baton Rouge, June 8-10, 2010.

Subudhi PK (2009) Micropropagation and genetic characterization of sea oats to accelerate restoration efforts. Coastal restoration and Enhancement through Science and Technology (CREST) PI meeting at Loyola University, New Orleans, Sept 16, 2009 (Oral).

Subudhi PK, Parco A, Singh P, Deleon T, Baisakh N, Cohn MA (2009) Development of an introgression library of red rice for mapping and cloning of genes for weedy traits. Plant and Animal Genome XVII, San Diego, CA, Jan 10-14, 2009, Final abstract guide, p: 74 (Poster No. 221).

Baisakh N, Rajasekharan K, Deleon T, Biradar H, Parco A, Singh P, Subudhi P (2009) Overexpression of Myo-inositol phosphate synthase gene from a halophyte Spartina alterniflora confers salt tolerance in transgenic tobacco and rice. Plant and Animal Genome XVII, San Diego, CA, Jan 10-14, 2009, Final abstract guide, p: 117 (Poster No. 616).

Subudhi PK (2008) Marker-aided development and characterization of an introgression
library to discover alleles for weediness: red rice as a model system. Project Director’s Meeting, Biology of Weedy and Invasive Species in Agroecosystems, 93rd Ecological Society of America Annual Meeting, The Midwest Airlines Center, Milwakee, Wisconsin, August 7-8, 2008 (Poster).

Subudhi PK, Baisakh N (2008) Molecular Genomics and genetics studies in smooth cordgrass and sea oats. Current status on coastal wetland plants research and restoration efforts symposium, Nov 14, 2008, Rice Research Station, LSU Agricultural Center, Rayne, LA, (Oral).

Subudhi PK, Fang X, Parami N, Ryan A, Sahoo D (2008) Contribution of graduate students to improve coastal marsh plants. Current status on coastal wetland plants research and restoration efforts symposium, Nov 14, 2008, Rice Research Station, LSU Agricultural Center, Rayne, LA, (Oral).

Baisakh N, Subudhi PK (2007) Genic microsatellite markers in Spartina species (Poaceae). Crop Science Society of America Annual meeting, Nov 4-8, 2007, New Orleans, Louisiana (Poster).

Subudhi PK (2007) Genomic Approaches to understand abiotic stress tolerance in Spartina alterniflora.” Invited presentation in Dept of Plant Pathology and Crop Physiology, Louisiana State University Agricultural Center, 28 March, 2007.

Baisakh N, Sahoo DM, Subudhi PK, Harrison S (2007) Micropropagation of sea oats: implications in coastal restoration. CREST Principal Investigators and Sea Grant Researchers and Extension Agents conference “Advances in Coastal Restoration Research” at Holiday Inn Express, Baton Rouge, 17 May 2007 (poster).

Utomo HS, Wenefrida I, Materne MD, Harrison SA, Subudhi PK (2007) Performance of California Bulrush elite lines for marsh restoration. CREST Principal Investigators and Sea Grant Researchers and Extension Agents conference “Advances in Coastal Restoration Research” at Holiday Inn Express, Baton Rouge, 17 May 2007 (poster).

Baisakh N, Subudhi PK, Varadwaj P (2007) Generation and analysis of expressed sequence tags (ESTs) from a grass halophyte Spartina Alterniflora. Plant and Animal Genome XV, San Diego, CA, Jan 13-17, 2007, Final abstract guide, p: 108 (Poster No. 28).

Baisakh N, Subudhi PK (2005) Identification of salinity-regulated genes in a halophyte Spartina alterniflora Loisel. (Poaceae) through transcriptional profiling by cDNA-AFLP. Plant Biology 2005, Seattle, WA, July 16-20, 2005 (Poster).

Subudhi PK, Parami NP, Harrison SA, Utomo HS, Materne MD, Fine G (2005) Development of improved sea oats (Uniola paniculata) populations for coastal restoration. Coastal Restoration and Enhancement through Science and Technology (CREST) Symposium 2005, 12-13 April 2005, River Oaks, Lafayette, Louisiana.

Utomo HS, Wenefrida I, Materne MD, Harrison SA, Subudhi PK, G Fine (2005) Tissue culture and cellular selection to develop salt tolerant California Bulrush for use in saltmarsh erosion control and wetland restoration. Coastal Restoration and Enhancement through Science and Technology (CREST) Symposium 2005, 12-13 April 2005, River Oaks, Lafayette, Louisiana.

Parami NP, Subudhi PK, Harrison SA, Materne MD, Nash D, Murphy P (2004) An AFLP-based genetic survey of sea oats (Uniola paniculata) accessions of the United States. Plant and Animal Genome XII, San Diego, CA, Jan 10-14, 2004, Final abstract guide, p: 142 (Poster No. 283).

Ryan AB, Subudhi PK, Venuto BC, Harrison SA, Shadow RA (2003) Assessment of genetic diversity in Louisiana native smooth cordgrass (Spartina alterniflora) accessions using molecular markers. Plant and Animal Genome XI, San Diego, CA, Jan 11-15, 2003, Final abstract guide, p: 113 (Poster No. 154).

Parami NP, Subudhi PK, Harrison SA, Materne M, Shadow RA, Nash D, Murphy P (2003) AFLP characterization of sea oats (Uniola paniculata) accessions from Southeastern Atlantic and Gulf coasts of the United States. Plant and Animal Genome XI, San Diego, CA, Jan 11-15, 2003, Final abstract guide, p: 132 (Poster No. 231).

Ryan AB, Venuto B, Harrison S, Subudhi PK, Materne M (2002) Characterization of Louisiana native Spartina alterniflora populations. Proceeding, Southern Branch Amer. Soc. Agron. p:12 (Poster).

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