A5072564626- Peanut Plant Research Studies
- Agricultural pest management studies
- Coconut Research and Applications
- Plant Virus Research Studies
- Nitrogen and Sulfur Effects on Brassica
- Agronomic Practices and Intercropping Systems
- Genetic and Environmental Crop Studies
- Plant Disease Resistance and Genetics
- Chromosomal and Genetic Variations
- Nematode management and characterization studies
- Seed and Plant Biochemistry
- Pediatric Hepatobiliary Diseases and Treatments
- Botanical Research and Chemistry
- Soybean genetics and cultivation
- Plant tissue culture and regeneration
- Infant Nutrition and Health
- Cassava research and cyanide
- Plant Taxonomy and Phylogenetics
- African Botany and Ecology Studies
- Enterobacteriaceae and Cronobacter Research
- Genetically Modified Organisms Research
- Agriculture, Land Use, Rural Development
- Agriculture and Rural Development Research
- Research in Cotton Cultivation
- Plant Reproductive Biology
North Carolina State University
2012-2024
Norfolk State University
1979-2013
United States Department of Agriculture
2005
University of Minnesota
2005
Agricultural Research Service
1988-2005
Iowa State University
2005
Montana State University
2005
National Center for Genome Resources
2005
University of Florida
2004
Texas A&M University
2004
David Bertioli and colleagues report the genomes of Arachis duranensis ipaensis, diploid ancestors cultivated peanut, hypogaea. Their analyses are a first step in understanding evolution peanut's tetraploid genome. Cultivated peanut (Arachis hypogaea) is an allotetraploid with closely related subgenomes total size ∼2.7 Gb. This makes assembly chromosomal pseudomolecules very challenging. As foundation to genome we sequences its ipaensis). We show that these similar A B use them identify...
Nuclear restriction fragment length polymorphism (RFLP) analysis was used to determine the wild diploid Arachis species that hybridized form tetraploid domesticated peanut. Results using 20 previously mapped cDNA clones strongly indicated A. duranensis as progenitor of A genome peanut and ipaensis B parent. large amount RFLP variability found among various accessions , most similar cultivated were identified. Chloroplast DNA determined female parent original hybridization event. Domesticated...
On December 14 to 15, 2004, some 50 legume researchers and funding agency representatives (the latter as observers) met in Santa Fe, New Mexico, develop a plan for cross-legume genomics research. This conference was one of the outcomes Legume Crops Genome Initiative (LCGI), an organization
Peanut germ plasm consists of the cultivated allotetraploid species Arachis hypogaea L. and a large number wild species, which are nearly all diploids. Our previous work indicated very low level genetic variability in American cultivars, as assayed by restriction fragment length polymorphism (RFLP) analysis. Since cultivars might represent narrow base, we expanded our study to include unadapted germ-plasm lines from various South centers origin, Africa, China, where considerable...
The cultivated peanut ( Arachis hypogaea L.) is an allotetraploid species with a very large and complex genome. This susceptible to numerous foliar soil‐borne diseases for which only moderate levels of resistance have been identified in the germplasm collection, but several 81 wild are extremely resistant many destructive diseases. Peanut were grouped into nine sections, taxa section will hybridize A. . Most these diploid, two aneuploids tetraploids also exist section. first cultivars...
Two dominant genes conditioning resistance to the root-knot nematode Meloidogyne arenaria were identified in a segregating F 2 population derived from cross of 4x (Arachis hypogaea × Arachis cardenasii)-GA 6 and PI 261942. Mae is proposed as designation for gene restricting egg number Mag galling. The high levels GA introgressed A. cardenasii and, therefore, search identify specific RAPD markers that are tightly linked these was conducted utilizing bulked segregant analysis. One marker...
Nuclear restriction fragment length polymorphism (RFLP) analysis was used to determine the wild diploid Arachis species that hybridized form tetraploid domesticated peanut. Results using 20 previously mapped cDNA clones strongly indicated A. duranensis as progenitor of A genome peanut and ipaensis B parent. large amount RFLP variability found among various accessions duranensis, most similar cultivated were identified. Chloroplast DNA determined female parent original hybridization event....
Cultivated peanut, Arachis hypogaea L., is a tetraploid (2n = 4x 40) species thought to be of allopolyploid origin. Its closest relatives are the diploid 2x 20) annual and perennial included with it in sect. Arachis. Species section represent an important source novel alleles for improvement cultivated peanut. A better understanding level speciation taxonomic relationships between taxa within prerequisite effective use this secondary gene pool peanut breeding programs. The AFLP technique was...
Forty-six introgression lines (F10C9) from a cross between Arachis hypogaea L. (2n = 4x 40) and A. cardenasii Krapov. & W. C. Gregory 2x 20) were analyzed for the of chromosome segments. Seventy-three RFLP probes 70 RAPD primers, expressing one to four cardenasii-specific bands, used evaluate set lines. Thirty-four 45 primers identified putative introgressed segments in or more Introgressed detected by analysis 10 11 linkage groups; smallest fragments single markers largest three adjacent...
Arachis glandulifera Stalker is a diploid (2 n = 2x 20) taxon in section native to eastern Bolivia. Plants of A. have longer lateral branches than other taxa Arachis, an upright mainstem, prostrate branches, and larger flowers seeds wild species the section. The pods are greatly reticulated. Glandular trichomes present on vegetative plant parts peg. Intraspecific hybrids among four accessions fertile uniformly ten bivalents pollen mother cells. Three had nearly identical karyotypes, while...
Abstract Background Cultivated peanut ( Arachis hypogaea ) is an allotetraploid species whose ancestral genomes are most likely derived from the A-genome species, A. duranensis , and B-genome ipaensis . The very recent (several millennia) evolutionary origin of has imposed a bottleneck for allelic phenotypic diversity within cultigen. However, wild diploid relatives rich source alleles that could be used crop improvement their simpler can more easily analyzed while providing insight into...
Peanut seeds contain high amounts of oil and protein as well some useful bioactive phytochemicals which can contribute to human health. The U.S. peanut mini-core collection is an important genetic resource for improving seed quality developing new cultivars. Variability chemical composition within the was evaluated from freshly harvested two years. Oil, fatty acid composition, flavonoid/resveratrol content were quantified by NMR, GC, HPLC, respectively. Significant variability detected in...
Significance A great challenge for humanity is feeding its growing population while minimizing ecosystem damage and climate change. Here, we uncover the global benefits arising from introduction of one wild species accession to peanut-breeding programs decades ago. This work emphasizes importance biodiversity crop improvement: peanut cultivars with genetics this provided improved food security reduced use fungicide sprays. However, study also highlights perilous consequences changes in legal...