Table 2.
Reference needed? | Complexity reduction | Access to non-coding regions | Cost per sample | Advantage | Disadvantages | Examples | |
---|---|---|---|---|---|---|---|
Whole genome resequencing | +++ | ++++ | ++++ | - Complete representation of the genome - Analysis of structure possible |
Expensive | Date palm [217], Maize [218], Pepper [99], Rice [208], Sorghum [219], Soybean [220], Tomato [221] | |
Exome capture | +++ | ++ | +++ | - Sequence of protein coding regions & functional elements - Known target regions |
- Only exons - Prior probe design required |
Barley [112], Bread wheat [222], Cotton [223], Pine [224], Rapeseed [225], Soybean [226], Sugarcane [227] | |
RNAseq | ++ | ++++ | ++ | - Gene expression analysis possible - Only protein coding regions - Reference-free analysis methods exist |
- Only exons - Only protein coding regions - Coverage depends on transcript abundance |
African rice[117], Carrot [228] Common bean [229], Cotton [230], Pepper[99], Sunflower[140], Tomato[34] |
|
Genotyping-by-sequencing | ++ | ++++ | +++ | + | - High-throughput identification of whole-genome markers - Reference-free analysis methods exist |
- Sparse marker data - Handling of missing data required |
Cassava[138], Chickpea [231], Cotton[69], Cowpea [232], Oat [233], Soybean [234], Watermelon [235] |