Genomic Selection with Allele Dosage in Panicum maximum Jacq.

ABSTRACT: Genomic selection is an efficient approach to get shorter breeding cycles in recurrent selection programs and greater genetic gains with selection of superior individuals. Despite advances in genotyping techniques, genetic studies for polyploid species have been limited to a rough approximation of studies in diploid species. The major challenge is to distinguish the different types of heterozygotes present in polyploid populations. In this work, we evaluated different genomic prediction models applied to a recurrent selection population of 530 genotypes of Panicum maximum, an autotetraploid forage grass. We also investigated the effect of the allele dosage in the prediction, i.e., considering tetraploid (GS-TD) or diploid (GS-DD) allele dosage. A longitudinal linear mixed mod

SUBMITTER: de C Lara LA 

PROVIDER: S-EPMC6686918 | biostudies-literature | 2019 Aug

REPOSITORIES: biostudies-literature