Ramsey Lewis
Current research activities are in the areas of genetics and breeding in the genusĀ Nicotiana. More specifically, research is being conducted to take advantage of biological features of these species in order to:
- develop and study improved and novel plant breeding methodologies
- understand the molecular basis of disease resistance in crop plants
- perform genetics-based manipulation of plant chemistry.
Methods used in our research are very diverse and include plant transformation, DNA marker based techniques, mutagenesis, gene-editing, and conventional field-based approaches.
Our research program also manages the United States Nicotiana Germplasm Collection
website: https://npgsweb.ars-grin.gov/gringlobal/site.aspx?id=25
and the CORESTA Series of Smokeless Tobacco Reference Products
website: http://go.ncsu.edu/strp
Courses:
CS 413 – Introduction to Plant Breeding
Publications
- Characterization of Phn15.1, a Newly Identified Phytophthora nicotianae Resistance QTL in Nicotiana tabacum, PLANT DISEASE (2020)
- Genetic and Agronomic Analysis of Tobacco Genotypes Exhibiting Reduced Nicotine Accumulation Due to Induced Mutations in Berberine Bridge Like (BBL) Genes, FRONTIERS IN PLANT SCIENCE (2020)
- Identification and editing of a hybrid lethality gene expands the range of interspecific hybridization potential inNicotiana, THEORETICAL AND APPLIED GENETICS (2020)
- Agronomic Practices Affecting Nicotine Concentration in Flue-Cured Tobacco: A Review, AGRONOMY JOURNAL (2019)
- Evaluating diverse systems of tobacco genetic resistance to Phytophthora nicotianae in Yunnan, China, PLANT PATHOLOGY (2019)
- Genetic Control of Facultative Parthenocarpy in Nicotiana tabacum L., JOURNAL OF HEREDITY (2019)
- Genetic analysis of Phn7.1, a major QTL conferring partial resistance to Phytophthora nicotianae in Nicotiana tabacum, MOLECULAR BREEDING (2019)
- Heterosis in Flue-Cured Tobacco and Its Utility in Predicting Transgressive Segregation within Derived Populations of Inbred Lines, CROP SCIENCE (2019)
- Identification and validation of SNP markers associated with Wz-mediated Phytophthora nicotianae resistance in Nicotiana tabacum L., MOLECULAR BREEDING (2019)
- Increasing Photosynthesis: Unlikely Solution For World Food Problem, TRENDS IN PLANT SCIENCE (2019)