Table 5.
Stable quantitative trait locus (QTLs) for fiber quality and yield identified in the upland cotton RIL population.
| Traitsa | QTL | Environmentb | Flanking markers | Positionc | LODd | Additivee | R2(%)f |
|---|---|---|---|---|---|---|---|
| FL | qFL-Chr10-1 | Yc | i11502Gh and i33011Gh | 44.51 | 2.65 | 0.29 | 6.30 |
| Bg | i11502Gh and i33011Gh | 44.51 | 2.68 | 0.26 | 6.27 | ||
| qFL-Chr14-3 | Yc | i15340Gh and i34657Gh | 23.31 | 7.71 | -0.46 | 15.05 | |
| Bg | i34657Gh and i40518Gh | 25.71 | 2.50 | -0.27 | 6.21 | ||
| qFL-Chr15-1 | Yc | i02955Gh and i02314Gh | 13.11 | 3.69 | -0.36 | 8.38 | |
| Bg | i02955Gh and i02315Gh | 12.31 | 5.21 | -0.38 | 11.12 | ||
| FU | qFU-Chr09-1 | Yc | i50203Gb and i17373Gh | 3.81 | 3.33 | -0.24 | 7.73 |
| Bg | i50203Gb and i17373Gh | 3.81 | 4.17 | -0.29 | 10.94 | ||
| qFU-Chr09-2 | Yc | i41596Gh and i26826Gh | 47.11 | 3.12 | -0.24 | 5.97 | |
| Bg | i41596Gh and i26826Gh | 47.11 | 2.68 | -0.24 | 5.58 | ||
| qFU-Chr09-3 | Yc | i06281Gh and i07773Gh | 52.61 | 3.63 | 0.30 | 7.48 | |
| Bg | i18943Gh and i07773Gh | 52.61 | 2.76 | 0.29 | 6.31 | ||
| MIC | qMIC-Chr14-1 | Yc | i15340Gh and i34657Gh | 23.31 | 2.51 | 0.08 | 5.52 |
| Bg | i15345Gh and i00465Gh | 20.91 | 2.52 | 0.11 | 5.64 | ||
| qMIC-Chr16-1 | Yc | i46435Gh and i62679Gt | 51.01 | 2.89 | 0.08 | 6.53 | |
| Bg | i01613Gh and i58367Gb | 49.31 | 2.54 | 0.09 | 5.77 | ||
| qMIC-Chr16-2 | Yc | i21384Gh and i22249Gh | 57.01 | 3.36 | 0.09 | 7.35 | |
| Bg | i44137Gh and i18258Gh | 57.41 | 4.23 | 0.15 | 9.20 | ||
| FE | qFE-Chr14-1 | Yc | i15343Gh and i21369Gh | 16.81 | 7.80 | 0.30 | 17.53 |
| Bg | i15343Gh and i21369Gh | 15.71 | 7.42 | 0.26 | 15.15 | ||
| qFE-Chr20-1 | Yc | i47006Gh and i17500Gh | 41.51 | 3.28 | 0.20 | 7.40 | |
| Bg | i17500Gh and i47439Gh | 47.11 | 6.19 | 0.44 | 32.28 | ||
| qFE-Chr24-1 | Yc | i04503Gh and i04704Gh | 73.31 | 2.62 | 0.75 | 5.78 | |
| Bg | i04503Gh and i04704Gh | 73.31 | 2.49 | 0.62 | 5.35 | ||
| BW | qBW-Chr10-1 | Yc | i25267Gh and i30274Gh | 32.21 | 2.82 | 0.61 | 27.96 |
| Bg | i25267Gh and i30274Gh | 32.21 | 2.69 | 0.60 | 24.73 | ||
| LP | qLP-Chr04-1 | Yc | i20890Gh and i24786Gh | 11.41 | 3.50 | 0.57 | 8.20 |
| Bg | i44575Gh and i24758Gh | 11.11 | 3.28 | 0.56 | 7.49 | ||
| qLP-Chr10-1 | Yc | i38146Gh and i22401Gh | 35.11 | 4.20 | -2.32 | 8.86 | |
| Bg | i25267Gh and i30274Gh | 33.21 | 2.68 | -2.27 | 20.71 | ||
| qLP-Chr12-1 | Yc | i40974Gh and i48211Gh | 4.01 | 3.38 | 0.66 | 10.42 | |
| Bg | i40974Gh and i48211Gh | 4.01 | 2.81 | 0.64 | 11.79 |
aFL, fiber length; FU, fiber uniformity; MIC, micronaire; FE, fiber elongation; FS, fiber strength; BW, boll weight; LP, lint percentage. bYc, Yacheng of Hainan Province; Bg, Baogang of Hainan Province. cPosition of QTL located on chromosome: as cM distance from the top of each chromosome. dA LOD threshold of 2.5 was used for declaration of QTL, based on 1000 permutations at a significance level of 0.01. ePositive “additive effect” indicates an increasing effect from HS46; negative “additive effect” indicates an increasing effect fromMARCABUCAG8US-1-88. fPhenotypic variance explained by QTL.