25 Result(s)

Article

Estimating biomass of benthic kelp forest invertebrates from body size and percent cover data

The inability to compare different measures of species abundance (such as density and percent cover) or different metrics of species biomass (such as wet mass and ash-free dry mass) hampers quantitative studie...

D. C. Reed, J. C. Nelson, S. L. Harrer, R. J. Miller in Marine Biology (2016)

Article

Sheath-blight resistance QTLS in japonica rice germplasm

Sheath blight (SB), caused by Rhizoctonia solani, is a serious disease of cultivated rice (Oryza sativa L.) for which genetic resistance is in demand by breeders. With the goal of resistance (SBR)-QTL discovery i...

J. C. Nelson, J. H. Oard, D. Groth, H. S. Utomo, Y. Jia, G. Liu… in Euphytica (2012)

Article

Resting leukocyte telomerase activity is elevated in major depression and predicts treatment response

Telomeres are DNA-protein complexes that cap linear DNA strands, protecting DNA from damage. When telomeres critically shorten, cells become susceptible to senescence and apoptosis. Telomerase, a cellular ribo...

O M Wolkowitz, S H Mellon, E S Epel, J Lin, V I Reus, R Rosser… in Molecular Psychiatry (2012)

Article

Map** QTL main and interaction influences on milling quality in elite US rice germplasm

Rice (Oryza sativa L.) head-rice yield (HR) is a key export and domestic quality trait whose genetic control is poorly understood. With the goal of identifying genomic regions influencing HR, quantitative-trait-l...

J. C. Nelson, A. M. McClung, R. G. Fjellstrom… in Theoretical and Applied Genetics (2011)

Article

Advanced backcross QTL analysis of a hard winter wheat × synthetic wheat population

Advanced backcross quantitative trait locus (AB-QTL) analysis was used to identify QTLs for yield and yield components in a backcross population developed from a cross between hard red winter wheat (Triticum aest...

B. Narasimhamoorthy, B.S. Gill, A.K. Fritz, J.C. Nelson… in Theoretical and Applied Genetics (2006)

Article

Cytogenetical studies in wheat XIX. Location and linkage studies on gene Yr27 for resistance to stripe (yellow) rust

The stripe (yellow) rust resistance gene Yr27 was located in wheat (Triticum aestivum L.) chromosome 2B and shown to be closely linked to the leaf (brown) rust resistance genes Lr13 and Lr23 in the proximal regio...

D.B. McDonald, R.A. McIntosh, C.R. Wellings, R.P. Singh, J.C. Nelson in Euphytica (2004)

Article

Chromosomal locations and genetic relationships of tiller and spike characters in wheat

Number of tillers per plant, plant growth habit in seedling and adult stages, and spike and spikelet characters are agronomically important features of the gross morphology of wheat. To localize to wheat chrom...

W.L. Li, J.C. Nelson, C.Y. Chu, L.H. Shi, S.H. Huang, D.J. Liu in Euphytica (2002)

Article

Macroscopic Modeling of Fine Line Adhesion Tests

Microwedge Indentation (MWIT) and Precracked Line Scratch (PLST) tests have been developed for adhesion measurements of microscale fine lines. In the MWIT a symmetric wedge-shaped probe is driven downward into...

A. A. Volinsky, J. C. Nelson, W. W. Gerberich in MRS Online Proceedings Library (1999)

Article

Map** of chromosome regions conferring boron toxicity tolerance in barley (Hordeum vulgare L.)

 Boron toxicity has been recognised as an important problem limiting production in the low-rainfall regions of southern Australia, West Asia and North Africa. Genetic variation for boron toxicity tolerance in ...

S. P. Jefferies, A. R. Barr, A. Karakousis… in Theoretical and Applied Genetics (1999)

Article

Nanoindentation Evaluation of Passive Film Stress and Growth Kinetics

Load controlled nanoindentation in conjunction with a potential step method were utilized for the investigation of precipitated iron sulfate film stresses and growth. Two types of experiments have been underta...

N. I. Tymiak, J. C. Nelson, W. W. Gerberich, D. F. Bahr in MRS Online Proceedings Library (1998)

Article

The mechanical behavior of a passivating surface under potentiostatic control

Continuous microindentation has been carried out on an iron–3% silicon single crystal in 1 M sulfuric acid. The ability of the material to support elastic loading is directly linked to the presence of thermall...

D. F. Bahr, J. C. Nelson, N. I. Tymiak, W. W. Gerberich in Journal of Materials Research (1997)

Article

Introgression and DNA marker analysis of Lycopersicon peruvianum, a wild relative of the cultivated tomato, into Lycopersicon esculentum, followed through three successive backcross generations

 Segregation of the Lycopersicon peruvianum genome was followed through three generations of backcrossing to the cultivated tomato L. esculentum cv ‘E6203’ using molecular markers. Thirteen BC₁ plants were genoty...

T. M. Fulton, J. C. Nelson, S. D. Tanksley in Theoretical and Applied Genetics (1997)

Article

Linkage between RFLP markers and genes affecting kernel hardness in wheat

A molecular-marker linkage map of wheat (Triticum aestivum L. em. Thell) provides a powerful tool for identifying genomic regions influencing breadmaking quality. A variance analysis for kernel hardness was condu...

P. Sourdille, M. R. Perretant, G. Charmet, P. Leroy… in Theoretical and Applied Genetics (1996)

Article

Advanced backcross QTL analysis: a method for the simultaneous discovery and transfer of valuable QTLs from unadapted germplasm into elite breeding lines

Advanced backcross QTL analysis is proposed as a method of combining QTL analysis with variety development. It is tailored for the discovery and transfer of valuable QTL alleles from unadapted donor lines (e.g...

S. D. Tanksley, J. C. Nelson in Theoretical and Applied Genetics (1996)

Article

Adhesion Evaluation of CVD Diamond Films and Metal Reinforced Composite Diamond Films

Poor adhesion of diamond films limits the use of CVD diamond films as coatings for cutting tools. The adhesion of these films is limited by stresses in the film caused by thermal expansion mismatch between the...

D. F. Bahr, J. C. Nelson, D. Zhuang, E. Pfender… in MRS Online Proceedings Library (1995)

Article

Adhesion Strength of Cu/Polyimide Interfaces by Micro-Wedge Scratching

The micro-wedge scratch technique was applied to characterize interfacial properties of copper fine lines on PMDA-ODA polyimide. A 20 urn wide, 0.1 g⩖ radius wedge-shaped diamond tip was used to mechanically d...

F. Wang, J. C. Nelson, H. Huang, R. L. Swisher… in MRS Online Proceedings Library (1994)

Article

Cracking Mechanisms of Fine Lines by Microwedge Scratch Testing

Three types of cracks associated with interfacial failure of a tungsten fine line on silicon oxide (SiO₂) have been observed in microwedge scratch testing (MWST) of fine lines. They were identified by carefully c...

M. P. de Boer, H. Huang, J. C. Nelson, E. T. Lelleodden… in MRS Online Proceedings Library (1994)

Article

The Effects of High Temperature Exposure on the Fracture of Thin Tantalum Nitride Films

Continuous microscratch testing was used in this study to determine the effects of elevated temperature exposure on the adhesion and toughness of thin tantalum nitride films. These films were sputter-deposited...

N. R. Moody, S. K. Venkataraman, J. C. Nelson… in MRS Online Proceedings Library (1994)

Article

Employing permeability coefficients to understand the biomobility and bioaccumulation of compounds sensitive to the environment

W. R. Cullen, F. G. Herring, J. C. Nelson in Bulletin of Environmental Contamination an… (1994)