@article{hung_holland_2012, title={Diallel Analysis of Resistance to Fusarium Ear Rot and Fumonisin Contamination in Maize}, volume={52}, ISSN={["0011-183X"]}, url={http://www.scopus.com/inward/record.url?eid=2-s2.0-84864723417&partnerID=MN8TOARS}, DOI={10.2135/cropsci2012.03.0154}, abstractNote={ABSTRACTThe fungus Fusarium verticillioides infects maize (Zea mays L.) ears and kernels, resulting in Fusarium ear rot disease, reduced grain yields, and contamination of grain with the mycotoxin fumonisin. Hybrid maize breeding programs involve selection for both inbred and hybrid performance; the emphasis placed on inbred versus hybrid selection depends on heritability of and the genetic correlation between resistance in the different generations. The objectives of this study were to assess the importance of general combing ability (GCA) and specific combining ability (SCA) for resistance to Fusarium ear rot and fumonisin contamination and to estimate the correlation between resistance measured in inbred and hybrid generations. We evaluated a diallel mating of 18 inbred lines from different heterotic groups with different levels of resistance. Hybrids had 27% less ear rot and 30% less fumonisin content than their inbred parents, demonstrating the importance of hybrid vigor to disease resistance. Both GCA and SCA were significant for yield and disease resistance, and inbred performance per se and corresponding GCA in hybrids were significantly correlated (r ≥ 0.78). Genetic variation for resistance was greater in inbred lines than among hybrids, however. These results suggest that the most efficient way to improve Fusarium ear rot and fumonisin contamination resistances in hybrids is to evaluate and select among inbred lines before using resources to create and evaluate hybrids.}, number={5}, journal={CROP SCIENCE}, author={Hung, Hsiao-Yi and Holland, James B.}, year={2012}, month={Sep}, pages={2173–2181} }
 @article{tian_bradbury_brown_hung_sun_flint-garcia_rocheford_mcmullen_holland_buckler_2011, title={Genome-wide association study of leaf architecture in the maize nested association mapping population}, volume={43}, ISSN={["1546-1718"]}, url={http://www.scopus.com/inward/record.url?eid=2-s2.0-79251561130&partnerID=MN8TOARS}, DOI={10.1038/ng.746}, abstractNote={US maize yield has increased eight-fold in the past 80 years, with half of the gain attributed to selection by breeders. During this time, changes in maize leaf angle and size have altered plant architecture, allowing more efficient light capture as planting density has increased. Through a genome-wide association study (GWAS) of the maize nested association mapping panel, we determined the genetic basis of important leaf architecture traits and identified some of the key genes. Overall, we demonstrate that the genetic architecture of the leaf traits is dominated by small effects, with little epistasis, environmental interaction or pleiotropy. In particular, GWAS results show that variations at the liguleless genes have contributed to more upright leaves. These results demonstrate that the use of GWAS with specially designed mapping populations is effective in uncovering the basis of key agronomic traits.}, number={2}, journal={NATURE GENETICS}, author={Tian, Feng and Bradbury, Peter J. and Brown, Patrick J. and Hung, Hsiaoyi and Sun, Qi and Flint-Garcia, Sherry and Rocheford, Torbert R. and McMullen, Michael D. and Holland, James B. and Buckler, Edward S.}, year={2011}, month={Feb}, pages={159–U113} }