Table 2 Mapping populations developed using PB 1121 for mapping and validation of QTLs governing various traits in rice
S. No. | Trait(s) mapped | Mapping population (Population used) | QTLs mapped | Marker interval/ linked marker | Percent phenotypic variance (PVE %) | Reference |
|---|---|---|---|---|---|---|
(a) Mapping of QTLs for grain and cooking quality traits | ||||||
1. | Grain length | PB 1121/Pusa 1342 (RILs) | grl1–1 | RM431-RM104 | 10.10 | Amarawathi et al. 2008 |
grl7–1 | RM11-RM505 | 7.40 | ||||
grl7–2 | RM505-RM336 | 5.70 | ||||
2. | Grain breadth | PB 1121/Pusa 1342 (RILs) | grb7–1 | RM11-RM505 | 10.10 | |
grb7–2 | RM505-RM336 | 18.90 | ||||
3. | Length/ breadth ratio | PB 1121/Pusa 1342 (RILs) | lbr7–1 | RM11-RM505 | 10.00 | |
lbr7–2 | RM505-RM336 | 21.90 | ||||
4. | Elongation ratio | PB 1121/Pusa 1342 (RILs) | elrl11–1 | RM1812-RM209 | 6.80 | |
5. | Amylose content | PB 1121/Pusa 1342 (RILs) | amy6–1 | RM3-RM217 | 39.60 | |
6. | ASV | PB 1121/Pusa 1342 (RILs) | asv6–1 | RM3-RM217 | 6.90 | |
7. | Aroma | PB 1121/Pusa 1342 (RILs) | aro3–1 | RM5474-RM282 | 10.30 | |
aro4–1 | RM5633-RM273 | 6.10 | ||||
aro8–1 | RM223-RM80 | 18.90 | ||||
8. | Resistance to bakanae diseasea | PB 1121/Pusa 1342 (RILs) | qBK1.1 | RM9-RM11282 | 6.49 | Fiyaz et al. 2016 |
qBK1.2 | RM10153-RM5336 | 24.70 | ||||
qBK1.3 | RM10271-RM35 | 4.70 | ||||
(b) Fine mapping of QTLs and allele mining | ||||||
9. | Aroma | PB 1121/Pusa 1342 (RILs) | aro3–1 | CHR3_22-CHR3_24 | 11.00 | Singh et al. 2007 |
aro8–1 | CHR8_49-RM44 | 2.90 | ||||
10. | Grain length | PB 1121/Pusa 1342 (RILs) | qGRL7.1 | CHR7_34-RM505 | 15.20 | Singh et al. 2012 |
qGRL1.1 | CHR1_1-RM431 | 10.80 | ||||
qGRB7.1 | CHR7_34-RM505 | 8.60 | ||||
qLBR7.1 | CHR7_34-RM505 | 8.60 | ||||
11. | Grain length | Sonasal/PB 1121 (RILs) | Novel InDel in GS3 | aks-GS3–12 | – | Anand et al. 2015 |
(c) Validation of QTLs | ||||||
12. | Grain length | Sonasal/PB 1121 (F2) | GS3 | SF28 | 32.50 | Anand et al. 2013 |
GS3 | SR17 | 7.90 | ||||
GS3 | RGS1 | 12.00 | ||||
GS3 | RGS2 | 6.30 | ||||
15. | Grain length | Sonasal/PB 1121 (F2) | qgrl7.1 | RM505 | 5.40 | Anand et al. 2013 |