- Advances in Cucurbitaceae Research
- Plant Disease Resistance and Genetics
- Plant Virus Research Studies
- Chromosomal and Genetic Variations
- Plant Pathogens and Resistance
- Plant Molecular Biology Research
- Plant Disease Management Techniques
- Plant Pathogenic Bacteria Studies
- Genetic Mapping and Diversity in Plants and Animals
- Seed and Plant Biochemistry
- Plant and Fungal Interactions Research
- Plant Pathogens and Fungal Diseases
- Cocoa and Sweet Potato Agronomy
- Genomics and Phylogenetic Studies
- Potato Plant Research
- Insect-Plant Interactions and Control
- Genetic and Environmental Crop Studies
- Plant tissue culture and regeneration
- Antioxidant Activity and Oxidative Stress
- Banana Cultivation and Research
- Genetic diversity and population structure
- Plant Taxonomy and Phylogenetics
- Soybean genetics and cultivation
- Plant-Microbe Interactions and Immunity
- Plant Gene Expression Analysis
University of Georgia
2014-2025
University of California, Riverside
2018-2019
University of Florida
2016
Monsanto (Canada)
2014
Syngenta (Switzerland)
2014
Georgia College & State University
2013
Monsanto (United States)
2012
Louisiana State University Agricultural Center
2006-2011
Louisiana State University
2005-2009
Kenya Agricultural Research Institute
2009
Abstract The Cucurbitaceae (cucurbit) family consists of about 1,000 species in 95 genera, including many economically important and popular fruit vegetable crops. During the past several years, reference genomes have been generated for >20 cucurbit species, variome transcriptome profiling data rapidly accumulated cucurbits. To efficiently mine, analyze disseminate these large-scale datasets, we developed an updated version Cucurbit Genomics Database. database, CuGenDBv2...
Abstract Background Modern watermelon ( Citrullus lanatus L. ) cultivars share a narrow genetic base due to many years of selection for desirable horticultural qualities. Wild subspecies within C. are important potential sources novel alleles breeding, but successful trait introgression into elite has had limited success. The application marker assisted (MAS) in is yet be realized, mainly the past lack high quality maps. Recently, number useful maps have become available, however these few...
Years of selection for desirable fruit quality traits in dessert watermelon (Citrullus lanatus) has resulted a narrow genetic base modern cultivars. Development novel genomic and resources offers great potential to expand diversity improve important watermelon. Here, we report high-quality genome sequence cultivar 'Charleston Gray', principal American watermelon, complement the existing reference from '97103', an East Asian cultivar. Comparative analyses between genomes Gray' '97103'...
Cultivated watermelon (Citrullus lanatus subsp. vulgaris) has a narrow genetic base due to domestication and breeding focusing primarily on fruit quality traits. Bitter or bland-tasting wild watermelons, such as C. mucosospermus, amarus colocynthis, have been used in introduce disease resistance modern cultivars (Levi et al., 2017). These relatives are valuable sources for broadening the improvement potential of cultivated watermelon, providing additional functionally important genes alleles...
The current management of whiteflies is largely dependent on insecticides. However, pesticides are costly and do not provide effective control whitefly-transmitted viruses (WTVs). breeding for resistant cultivars can a more sustainable solution. Twenty-one Citrullus genotypes, including 10 C. lanatus , four mucosospermus six amarus one ecirrhosus were evaluated to determine their resistance three WTVs common in Georgia field trials 2 years. Phenotypic data collected weekly viral disease...
Viruses transmitted by the sweet potato whitefly (Bemisia tabaci) have been detrimental to sustainable production of cucurbits in southeastern USA. Surveys were conducted fall 2019 and 2020 Georgia, a major cucurbit-producing state USA, identify viruses infecting their distribution. Symptomatic samples collected small RNA libraries prepared sequenced from three cantaloupes, four cucumbers, two yellow squash samples. An analysis sequences revealed presence criniviruses cucurbit chlorotic...
We identified QTLs associated with gummy stem blight resistance in an interspecific F2:3 Citrullus population and developed marker assays for selection of the loci watermelon. Gummy (GSB), caused by three Stagonosporopsis spp., is a devastating fungal disease watermelon (Citrullus lanatus) other cucurbits that can lead to severe yield losses. Currently, no commercial cultivars genetic GSB field have been reported. Utilizing GSB-resistant would reduce losses, decrease high cost control,...
Viruses transmitted by whiteflies (Bemisia tabaci) cause severe damage to cucurbits in the southern United States. In fall of 2020, samples squash plants (Cucurbita pepo) exhibiting symptoms yellow mottle, interveinal yellowing, and leaf crumple were collected from an insecticide trial Tifton, Georgia. Total nucleic acid was isolated using MagMAX 96 Viral RNA Isolation Kit (ThermoFisher Scientific) following manufacturer's instructions but without DNase treatment. Polymerase chain reaction...
Watermelon ( Citrullus lanatus ) is an important crop grown for both its edible flesh and seeds. Seed size trait in watermelon breeding, with large seeds preferred planting but small fruit sold consumption. Large, medium, seed sizes are thought to be controlled by two genes epistatic interaction. A ‘Klondike Black Seeded’ × ‘New Hampshire Midget’ (KBS NHM) recombinant inbred line population a ZWRM 50 PI 244019 (ZWRM Citroides) F 2 were used identify main effect quantitative loci (M-QTL) QTL...
The egusi watermelon ( Citrullus lanatus ) is popular in West Africa for its oil and protein-rich seed, which consumed soups stews. phenotypic trait controlled by a single recessive gene eg characterized large seed size fleshy, thick pericarp. An F 2 mapping population was derived from Strain II (PI 279461) of the Japanese cultivar Yamato-cream with normal type low percentage (SOP = 25.2%) an Nigeria [Egusi 560023)] high SOP (40.6%). Genetic analysis confirmed that location mapped to 57.8 cM...
Egusi watermelon [ Citrullus lanatus (Thunb.) Matsum. & Nakai subsp. mucosospermus var. egusi (C. Jeffrey) Mansf.] is known for its distinctive fleshy-pericarp seed phenotype and high oil percentage (SOP). The part of the daily diet in West Africa where it used soups stews or processed cooking oil. Genetic mapping studies have revealed that most variation SOP between normal, non-egusi explained by ( eg ) locus, which also associated with unique phenotype. However, observed within normal...
Different species of edible seed watermelons (Citrullus spp.) are cultivated in Asia and Africa for their colorful nutritious seeds. Consumer preference varies watermelon coat color. Therefore, it is an important consideration breeders. In 1940s, a genetic model four genes, R, T, W D, was proposed to elucidate the inheritance color watermelon. this study, we developed three segregating F2 populations: Sugar Baby (dotted black seed, RRTTWW) × plant introduction (PI) 482379 (green rrTTWW),...
Watermelon (Citrullus lanatus) is an economically important fruit crop grown for consumption of its large edible flesh. Pentatricopeptide-repeat (PPR) encoding genes, one the gene families in plants, are RNA-binding proteins involved regulation plant growth and development by influencing expression organellar mRNA transcripts. However, systematic information regarding PPR family watermelon remains largely unknown. In this comprehensive study, we identified characterized a total 422 C....
Sweet potato virus disease (SPVD) is one of the most devastating diseases affecting sweetpotato ( Ipomoea batatas ), an important food crop in developing countries. SPVD develops when plants are dually infected with sweet feathery mottle (SPFMV) and chlorotic stunt (SPCSV). To better understand synergistic interaction between these viruses, global gene expression was previously studied susceptible cultivar Beauregard. In current study, SPVD-affected virus-tested control (VT) were compared...