Document Type
Article
Publication Date
8-1-2020
Abstract
In this paper, the aims were (a) to test the usefulness of using genomic and phenotypic information from public databases (open access) to predict genetic values for tropical maize inbred lines regarding plant and ear height; (b) to identify how the population structure, the use of optimized training sets (OTSs) and the amount of information originating from public databases affect the predictive ability. Thus, 29 training sets (TSs) were defined considering three diversity panels: the University of São Paulo (USP—validation set (VS)) and the ASSO and USDA North Central Regional Plant Introduction Station (NCRPIS) (external public panels—predictors), which were divided into four scenarios with different TS configurations. We showed that it is possible to use public datasets as a primary TS and that population structure can modify the predictive abilities of GS. In the four scenarios proposed, very large or very small sets did not provide predictive abilities over 0.53 for GS. However, OTSs composed of 250 individuals were sufficient to achieve predictive abilities over this limit.
Publication Source (Journal or Book title)
Plant Breeding
First Page
697
Last Page
707
Recommended Citation
Pinho Morais, P., Akdemir, D., Braatz de Andrade, L., Jannink, J., Fritsche-Neto, R., Borém, A., Couto Alves, F., Hottis Lyra, D., & Granato, Í. (2020). Using public databases for genomic prediction of tropical maize lines. Plant Breeding, 139 (4), 697-707. https://doi.org/10.1111/pbr.12827