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Table 2 Summary of QTLs associated with drought tolerance in rice
a
Cross
Traits
QTL mapping population Number of QTLs Reference
CO39×Moroberekan
Osmotic adjustmet and
dehydration
RIL*
1
Lilly et al., 1996
IR20×63-83
Leaf size and abscisic
acid (ABA)
accumulation
F2
17
Quarrie et al., 1997
CT9993×IR62266
Cellular membrane
stability (CMS) under
drought
DHLs*
9
Tripathy et al., 2000
CT9993×IR62266
Osmotic adjustment
under drought
DHLs
5
Zhang et al., 2001
Bala×Azucena
Dehydration avoidance RILs
17
Price et al., 2002
Bala×Azucena
Yield and its
components under
drought
RILs
31
Lafitte et al., 2004
CT9993×IR62266
Yield, yield
components, panicle
sterility
RILs
Many
Jonaliza et al., 2004
Indica×Upland
Productivity, water
status, roots
RILs
39
Yue et al., 2005
Indica×Japonica
Dehydration avoidance
and dehydration
tolerance traits
RILs
Many
Yue et al., 2006
Bala×Azucena
Morphological and
physiological traits
RILs
24
Gomez et al., 2007
IRAT 109×Yuefu
Different root traits
RILs
Many
Qu et al., 2008
CT9993×IR62266
Physio-morphological
traits
RILs
Many
Subashri et al., 2009
IR 20×Nootripathu
Physio-morphological
and yield traits
NILs
22
Gomez et al., 2010
IR64×Kinandang Patong (KP)
Deep rooting
RILs
1
Uga et al., 2011
Low land rice cv. Shennong26
×Upland rice cv. Haogelao
Photosynthesis
parameters
Backcross (ILs)
1~3
Gu et al., 2012
Note: (*) DHL: doubled haploid lines; RIL: Recombinant inbred lines; NILs: Near Isogenic lines; ILs: Introgression lines;
a
: Similar
studies reported in the text have not been included in this table