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Rice Genomics and Genetics 2012, Vol.3, No.7, 39
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multi-gene plant expression and hybridization. Thirdly,
QTL isolation and cloning of rice salt tolerance gene
should carry on. After Ren (2005) and Huang (2009)
get rice salt tolerance gene
SKC1
and
DST
separately
according QTL Mapping, abundant QTL Mapping and
cloning will be carried out. Fourthly, scientists should
carry out innovative germplasm of rice salt tolerance
actively. Transplanting the salt tolerance genes to rice
improved breeds through conventional breeding,
tissue culture, marker-assisted selection, genetically
modification and gene polymerization and create salt
tolerance rice species to satisfy urgent needs for high
yield, good quality and salt tolerance rice. The last,
exploit high saline-alkali tolerance rice from available
resources, to provide abundant genes, more attention
should be paid on indigenous rice and wild rice.
Some problems occurred during the research of salt
tolerance breeding. For example, available cloned
endogenous salt tolerance genes are seldom, and they
are not closely connected with practice and
application, as a result, they cannot produce great
social and economic benefits; Biological security
evaluation of exogenous gene transformation is still to
be determined, and so on. But with the development
of research and bio-technology, as well as recognition
and support of the government to genetically modified
rice, rice salt tolerance breeding will making great
progress, in the near future, there will be huge number
of salt tolerance rice varieties in production practice. It
is of immense significance to relieve food supply
crisis all around the world.
Authors’ Contribultions
SKH carried out the experiment; QQ and LBG conceived this
program, directed the experimental design, data analysis, as
well as manuscript writing and modification; HJT took part in
the experiment and helped to analyze part of the data. All
authors have read and approved the final manuscript.
Acknowledgement
This work was co-supported by National 863 Program Funded
Projects (2006AA10Z1A9), State of Transgenic Special
(2009ZX08001-022B) and the National Support Project
(2006BAD13B01).
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