High-throughput sequencing of PCR products
from candidate genes is an alternative to DNA
mismatch detection. Sequencing can be particularly
useful for outcrossing, polyploid crops like potato,
where high levels of allelic diversity can
complicate mismatch detection.
Next-generation sequencing has considerable
potential as a mutation screening tool when
strategies to distinguish mutations from sequencing
errors are employed and sample pooling is used to
improve cost-efficiency (Gilchrist and Haughn,
2010). Roche 454 sequencing, for example, was
used to identify candidate gene mutations in pooled
samples of tomato and petunia.