Table 2.
Summary of QTL mapping results in the coconut F2 population.
| Days to launch of first spathe (DLFS) | Bole emergence (BOLE) | Number of bunches with fruit (NBF) | Petiole length (PL) | |
|---|---|---|---|---|
| Chromosome | 3 | 3 | 1 | 3 |
| LOD score threshold (percentile) | 5.14 (99%) | 4.47 (95%) | 5.14 (99%) | 5.14 (99%) |
| # SNPs in QTL region | 52 | 1 | 1 | 22 |
| QTL region position (cM) | 118.928–149.166 | 132.62 | 57.16 | 123.503–136.125 |
| Right SNP | 100287206_T>A-55 | – | – | 100287206_T>A-55 |
| Left SNP | 100273632_T>G-15 | – | – | 100273632_T>G-15 |
| Peak LOD | 11.86 | 4.64 | 5.68 | 7.79 |
| Peak LOD SNP | 100226499_C>T-34 | 100228320_G>A-40 | 100237259_A>G-48 | 100226499_C>T-34 |
|
Target SNP allele
(Origin; effect) |
T (Dwarf; reduction) |
A (Dwarf; increase) |
A (Dwarf; increase) |
T (Dwarf; reduction) |
| Genome position (bp) | 73,147,443 | 75,613,473 | 19,206,916 | 73,147,443 |
| Variance explained (%) | 64.0 | 3.12 | 0.43 | 22.3 |
QTL, quantitative trait locus; LOD, logarithm of the odds; SNPs, single-nucleotide polymorphisms.