@article{eller_robertson-hoyt_payne_holland_2008, title={Grain yield and fusarium ear rot of maize hybrids developed from lines with varying levels of resistance}, volume={53}, number={3-4}, journal={Maydica}, author={Eller, M. S. and Robertson-Hoyt, L. A. and Payne, G. A. and Holland, J. B.}, year={2008}, pages={231–237} }
 @article{jines_balint-kurti_robertson-hoyt_molnar_holland_goodman_2007, title={Mapping resistance to Southern rust in a tropical by temperate maize recombinant inbred topcross population}, volume={114}, ISSN={["1432-2242"]}, url={http://www.scopus.com/inward/record.url?eid=2-s2.0-33846813838&partnerID=MN8TOARS}, DOI={10.1007/s00122-006-0466-0}, abstractNote={Southern rust, caused by Puccinia polysora Underw, is a foliar disease that can severely reduce grain yield in maize (Zea mays L.). Major resistance genes exist, but their effectiveness can be limited in areas where P. polysora is multi-racial. General resistance could be achieved by combining quantitative and race-specific resistances. This would be desirable if the resistance alleles maintained resistance across environments while not increasing plant maturity. Recombinant inbred (RI) lines were derived from a cross between NC300, a temperate-adapted all-tropical line, and B104, an Iowa Stiff Stalk Synthetic line. The RI lines were topcrossed to the tester FR615 x FR697. The 143 topcrosses were scored for Southern rust in four environments. Time to flowering was measured in two environments. The RI lines were genotyped at 113 simple sequence repeat markers and quantitative trait loci (QTL) were mapped for both traits. The entry mean heritability estimate for Southern rust resistance was 0.93. A multiple interval mapping model, including four QTL, accounted for 88% of the variation among average disease ratings. A major QTL located on the short arm of chromosome 10, explained 83% of the phenotypic variation, with the NC300 allele carrying the resistance. Significant (P < 0.001), but relatively minor, topcross-by-environment interaction occurred for Southern rust, and resulted from the interaction of the major QTL with the environment. Maturity and Southern rust rating were slightly correlated, but QTL for the two traits did not co-localize. Resistance was simply inherited in this population and the major QTL is likely a dominant resistant gene that is independent of plant maturity.}, number={4}, journal={THEORETICAL AND APPLIED GENETICS}, author={Jines, M. P. and Balint-Kurti, P. and Robertson-Hoyt, L. A. and Molnar, T. and Holland, J. B. and Goodman, M. M.}, year={2007}, month={Feb}, pages={659–667} }
 @article{robertson-hoyt_betran_payne_white_isakeit_maragos_molnar_holland_2007, title={Relationships among resistances to Fusarium and Aspergillus ear rots and contamination by fumonisin and aflatoxin in maize}, volume={97}, ISSN={["1943-7684"]}, url={http://www.scopus.com/inward/record.url?eid=2-s2.0-33847337945&partnerID=MN8TOARS}, DOI={10.1094/PHYTO-97-3-0311}, abstractNote={ Fusarium verticillioides, F. proliferatum, and Aspergillus flavus cause ear rots of maize and contaminate the grain with mycotoxins (fumonisin or aflatoxin). The objective of this study was to investigate the relationships between resistance to Fusarium and Aspergillus ear rots and fumonisin and aflatoxin contamination. Based on a previous study of 143 recombinant inbred lines from the cross NC300 × B104, 24 lines with the highest and 24 lines with the lowest mean fumonisin concentration were selected for further evaluation. Paired plots of each line were inoculated with F. verticillioides and F. proliferatum or with A. flavus in replicated trials in 2004 and 2005 in Clayton, NC, and College Station, TX. The low-fumonisin group had significantly lower levels of fumonisin, aflatoxin, and Fusarium and Aspergillus ear rots. Across year-location environments, all four traits were significantly correlated; the genotypic correlation (rG) ranged from rG = 0.88 (aflatoxin and Aspergillus ear rot) to rG = 0.99 (Fusarium and Aspergillus ear rots). Quantitative trait loci (QTLs) were identified and their effects estimated. Two QTLs affected both toxin concentrations, one QTL affected both ear rots, and one QTL affected Aspergillus and Fusarium rots and fumonisin. These results suggest that at least some of the genes involved in resistance to ear rots and mycotoxin contamination are identical or genetically linked. }, number={3}, journal={PHYTOPATHOLOGY}, author={Robertson-Hoyt, Leilani A. and Betran, Javier and Payne, Gary A. and White, Don G. and Isakeit, Thomas and Maragos, Chris M. and Molnar, Terence L. and Holland, James B.}, year={2007}, month={Mar}, pages={311–317} }
 @article{robertson-hoyt_kleinschmidt_white_payne_maragos_holland_2007, title={Relationships of resistance to Fusarium ear rot and fumonisin contamination with agronomic performance of maize}, volume={47}, ISSN={["1435-0653"]}, url={http://www.scopus.com/inward/record.url?eid=2-s2.0-35348855713&partnerID=MN8TOARS}, DOI={10.2135/cropsci2006.10.0676}, abstractNote={Resistance to Fusarium ear rot [caused by Fusarium verticillioides (Sacc.) Nirenberg (synonym F. moniliforme Sheldon) (teleomorph: Gibberella moniliformis) and F. proliferatum (Matsushima) Nirenberg (teleomorph: G. intermedia)] and fumonisin contamination is heritable and controlled by at least 11 gene regions in a maize (Zea mays L.) population created by backcrossing the highly resistant donor line, GE440, to the susceptible but commercially successful recurrent parent line, FR1064. The relationship between resistances to Fusarium ear rot and fumonisin contamination and agronomic performance has not been reported. Therefore, the objective of this study was to examine the relationship between disease resistance and agronomic utility in this population by measuring resistances to Fusarium ear rot and fumonisin contamination in BC1F1:2 lines, and yield and agronomic performance in topcrosses of these lines. Fumonisin contamination was not correlated with yield, but two fumonisin quantitative trait loci (QTL) mapped to similar positions as yield QTL. Fusarium ear rot had a small positive correlation with topcross yield (r = 0.29), but QTL for the two traits mapped to distinct genomic positions. Similar results for other traits indicate that QTL can contribute in opposite directions to the overall genetic correlations between traits and that some trait correlations arise in the absence of detectable QTL effects on both traits. In general, no strong relationships were observed between disease resistance traits and agronomic traits, thus selection for increased resistance should not unduly affect agronomic performance.}, number={5}, journal={CROP SCIENCE}, author={Robertson-Hoyt, Leilani A. and Kleinschmidt, Craig E. and White, Don G. and Payne, Gary A. and Maragos, Chris M. and Holland, James B.}, year={2007}, pages={1770–1778} }
 @article{robertson-hoyt_jines_balint-kurti_kleinschmidt_white_payne_maragos_molnar_holland_2006, title={QTL mapping for fusarium ear rot and fumonisin contamination resistance in two maize populations}, volume={46}, DOI={10.2135/cropsci205.12-0450}, number={4}, journal={Crop Science}, author={Robertson-Hoyt, L. A. and Jines, M. P. and Balint-Kurti, Peter and Kleinschmidt, C. E. and White, D. G. and Payne, G. A. and Maragos, C. M. and Molnar, T. L. and Holland, J. B.}, year={2006}, pages={1734–1743} }