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You searched for: Author "Tyamagondlu V. Venkatesh" Remove constraint Author: "Tyamagondlu V. Venkatesh"
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1. Compositional Assessments of Key Maize Populations: B73 Hybrids of the Nested Association Mapping Founder Lines and Diverse Landrace Inbred Lines

Author:
Tyamagondlu V. Venkatesh,   et al.   ; George G. Harrigan; Tim Perez; Sherry Flint-Garcia;     Show all 4 Authors
Source:
Journal of agricultural and food chemistry 2015 v.63 no.21 pp. 5282-5295
ISSN:
0021-8561
Subject:
Zea mays; starch; discriminant analysis; community development; alleles; amino acids; beta-carotene; chromosome mapping; corn; data collection; fatty acids; hybrids; inbred lines; landraces; minerals; phytic acid; plant breeding; raffinose; tocopherols; New York; South America
Abstract:
... The present study provides an assessment of the compositional diversity in maize B73 hybrids derived both from the Nested Association Mapping (NAM) founder lines and from a diverse collection of landrace accessions from North and South America. The NAM founders represent a key population of publicly available lines that are used extensively in the maize community to investigate the genetic basis o ...
Handle:
10113/61051
DOI:
10.1021/acs.jafc.5b00208

2. Compositional Analysis of Grain and Forage from MON 87427, an Inducible Male Sterile and Tissue Selective Glyphosate-Tolerant Maize Product for Hybrid Seed Production

Author:
Tyamagondlu V. Venkatesh,   et al.   ; Matthew L. Breeze; Kang Liu; George G. Harrigan; Angela H. Culler;     Show all 5 Authors
Source:
Journal of agricultural and food chemistry 2014 v.62 no.8 pp. 1964-1973
ISSN:
0021-8561
Subject:
3-phosphoshikimate 1-carboxyvinyltransferase; biotechnology; breeding; corn; females; food production; forage; glyphosate; herbicide resistance; hybrids; insects; introns; males; microspores; nutrients; phenotype; pollen; regulatory sequences; secondary metabolites; sustainable agriculture; tissues
Abstract:
... Conventional maize hybrid seed production has historically relied upon detasseling using either manual methods or semiautomated processes to ensure the purity of the hybrid cross. Monsanto Co. has developed biotechnology-derived MON 87427 maize with tissue-selective glyphosate tolerance to facilitate the production of hybrid maize seed. MON 87427 utilizes a specific promoter and intron combination ...
DOI:
10.1021/jf4041589

3. Metabolomic Assessment of Key Maize Resources: GC-MS and NMR Profiling of Grain from B73 Hybrids of the Nested Association Mapping (NAM) Founders and of Geographically Diverse Landraces

Author:
Tyamagondlu V. Venkatesh,   et al.   ; Alexander W. Chassy; Oliver Fiehn; Sherry Flint-Garcia; Qin Zeng; Kirsten Skogerson; George G. Harrigan;     Show all 7 Authors
Source:
Journal of agricultural and food chemistry 2016 v.64 no.10 pp. 2162-2172
ISSN:
0021-8561
Subject:
agronomic traits; alleles; chromosome mapping; corn; corn ears; correlation; gas chromatography-mass spectrometry; genetic variation; germplasm; hybrids; landraces; metabolites; metabolomics; nuclear magnetic resonance spectroscopy; nutrient content; South America
Abstract:
... The present study expands metabolomic assessments of maize beyond commercial lines to include two sets of hybrids used extensively in the scientific community. One set included hybrids derived from the nested association mapping (NAM) founder lines, a collection of 25 inbreds selected on the basis of genetic diversity and used to investigate the genetic basis of complex plant traits. A second set ...
Handle:
10113/5209500
DOI:
10.1021/acs.jafc.5b04901

4. Maize hybrids derived from GM positive and negative segregant inbreds are compositionally equivalent: any observed differences are associated with conventional backcrossing practices

Author:
Tyamagondlu V. Venkatesh,   et al.   ; Erin Bell; Anna Bickel; Kevin Cook; Benjamin Alsop; Martijn van de Mortel; Ping Feng; Alan Willse; Tim Perez; Susan Riordan; George G. Harrigan;     Show all 11 Authors
Source:
Transgenic research 2016 v.25 no.1 pp. 83-96
ISSN:
0962-8819
Subject:
amino acids; backcrossing; beta-carotene; corn; fatty acids; females; herbicide resistance; hybrids; males; minerals; oils; phytic acid; raffinose; starch; statistical analysis; tocopherols; transgenic plants; variance; United States
Abstract:
... In this study, we show that compositional differences in grain harvested from genetically modified (GM) maize hybrids derived from near-isogenic trait-positive and trait-negative segregant inbreds are more likely related to backcrossing practices than to the GM trait. To demonstrate this, four paired GM trait-positive (NK603: herbicide tolerance) and trait-negative near-isogenic inbred male lines ...
DOI:
10.1007/s11248-015-9910-8

5. Compositional differences between near‐isogenic GM and conventional maize hybrids are associated with backcrossing practices in conventional breeding

Author:
Tyamagondlu V. Venkatesh,   et al.   ; Kevin Cook; Bing Liu; Timothy Perez; Alan Willse; Ryan Tichich; Ping Feng; George G. Harrigan;     Show all 8 Authors
Source:
Plant biotechnology journal 2015 v.13 no.2 pp. 200-210
ISSN:
1467-7644
Subject:
Zea mays; amino acids; backcrossing; corn; drought tolerance; fatty acids; females; genetic background; genetic variation; genotyping; growing season; herbicide resistance; hybrids; inbred lines; insects; introgression; males; minerals; oils; parents; plant breeding; residual effects; starch; tocopherols; transgenic plants; United States
Abstract:
... Here, we show that differences between genetically modified (GM) and non‐GM comparators cannot be attributed unequivocally to the GM trait, but arise because of minor genomic differences in near‐isogenic lines. Specifically, this study contrasted the effect of three GM traits (drought tolerance, MON 87460; herbicide resistance, NK603; insect protection, MON 89034) on maize grain composition relati ...
DOI:
10.1111/pbi.12248