*nick.fradgley@csiro.au

Several thousand bread wheat breeding lines have been tested in Australian field trials as part of the CIMMYT Australia ICARDA Germplasm Evaluation (CAIGE) project, but systematic genotyping of materials have only been conducted in recent years.

Here, I present my use case and experience of selecting and genotyping additional lines to enable a more complete analysis of a large multi-environment trial dataset with genetic information balanced across years. A diverse subset of lines was selected that minimises closely related individuals based on pedigree kinship.

Some degree of overlap between selected lines and those already genotyped with other platforms enabled linkage-based imputation across multiple genotyping platforms. Comparisons of genetic diversity of novel CAIGE lines from both CIMMYT and ICARDA compared to the Australian commercial controls highlighted the value of these materials for research and breeding.