Table 4.
The 10 genomic regions harboring environmentally stable QTLs for spike morphological traits in the Y8679/J411 RIL population.
| Genomic region | Interval (cM) | Associated traitsa | Included QTLsb | Detected environmentc | References |
|---|---|---|---|---|---|
| Region 1A.1 | 0.00–16.10 | SC (−) | QSc.cau-1A.1 | E2/E3/E5/E6/E7/E9/C | |
| Region 1A.2 | 55.40–71.40 | FSN (−) | QFsn.cau-1A.3; QFsn.cau-1A.4 | E2/E3/E6/E9/C | Heidari et al., 2011 |
| TSN (−) | QTsn.cau-1A.2; QTsn.cau-1A.3; QTsn.cau-1A.4 | E2/E3/E6/E7/C | |||
| Region 1B | 2.00–7.10 | SL (+) | QSl.cau-1B.1; QSl.cau-1B.2 | E1/E3/E7/E9/C | Gao et al., 2015 |
| FSN (+) | QFsn.cau-1B.1; QFsn.cau-1B.2 | E1/E2/E3/E5/E7/E8/E9/C | |||
| SSN (+) | QSsn.cau-1B.1 | E2/E4/E5/E6/C | Cui et al., 2012 | ||
| TSN (+) | QTsn.cau-1B.1; QTsn.cau-1B.2 | E1/E2/E3/E4/E5/E6/E7/E8/E9/C | |||
| Region 2B | 26.50–43.20 | SL (+) | QSl.cau-2B.2 | E2/E4/E5/E6/E9/C | Xu et al., 2014 |
| Region 2D.1 | 0.00–1.30 | SL (−) | QSl.cau-2D.1 | E2/E4/E9 | |
| SSN (−) | QSsn.cau-2D.1 | E3/C | |||
| SC (+) | QSc.cau-2D.1 | E1/E2/E6/E8/E9/C | |||
| Region 2D.2 | 5.10–11.10 | SL (−) | QSl.cau-2D.2 | E1/E2/E3/E4/E5/E6/E7/E8/E9/C | Xu et al., 2014 |
| SSN (−) | QSsn.cau-2D.2 | E1/E2/E3/E4/E5/E6/E7/E8/E9/C | Xu et al., 2014 | ||
| SC (+) | QSc.cau-2D.2 | E1/E2/E3/E4/E5/E6/E7/E8/E9/C | Heidari et al., 2011 | ||
| PHT(−) | QPht.cau-2D.1 | E1/E3/E5/E8/C | Xu et al., 2014 | ||
| Region 3A | 23.20–37.50 | FSN (−) | QFsn.cau-3A.2; QFsn.cau-3A.3 | E3/E5/E6/E7/C | Xu et al., 2014 |
| SSN (+) | QSsn.cau-3A.3; QSsn.cau-3A.4 | E1/E3/E7 | |||
| Region 5A | 80.80–95.40 | SL (−) | QSl.cau-5A.3; QSl.cau-5A.4 | E2/E4/E5/E6/E7/E8/E9/C | Yu et al., 2014 |
| SC (+) | QSc.cau-5A.2; QSc.cau-5A.3; QSc.cau-5A.4 | E1/E2/E4/E5/E6/E7/E8/E9/C | Xu et al., 2014 | ||
| Region 7A | 123.50–137.50 | TSN (−) | QTsn.cau-7A.3 | E1/E3/E6/E7/E9/C | Xu et al., 2014 |
| FSN (−) | QFsn.cau-7A.1 | E5/E6/E9/C | Xu et al., 2014 | ||
| Region 7B | 44.60–73.10 | SL (+) | QSl.cau-7B.1; QSl.cau-7B.2 | E2/E3/E4/E6/E9/C | |
| SC (−) | QSc.cau-7B.1 | E1/E2 |
a
Traits are spike length (SL), fertile spikelet number per spike (FSN), sterile spikelet number per spike (SSN), total spikelet number per spike (TSN), spikelet compactness (SC), and plant height (PHT). The plus (“+”) and minus (“−”) signs within the brackets indicate Y8679 and J411 contributed increasing alleles, respectively.
b
The QTLs shown in bold are environmentally stable QTLs.
c
C indicates the combined QTL analysis based on the BLUP values across nine environments.