Abstract
Gene differential expression of Kosteletzkya virginica seedlings under salt stress at two time points (2, 24 h) in roots and leaves was analyzed using the cDNA-amplified fragment length polymorphism (cDNA-AFLP) technique. Polymorphic transcript-derived fragments (TDFs) among control plants and salt-treated plants were grouped into four main differential expression patterns: repression (A), de novo induction (B), up-regulation (C) and down-regulation (D). Among them, 34 differentially expressed gene fragments were homologous to known genes from other species and 4 were sequences with unknown functions. These differentially expressed genes can be classified into four groups according to their putative functions: (1) genes for re-establishing ion homeostasis and protecting the plant from stress damage; (2) genes involved in metabolism or energy and resuming plant growth and development under salt stress; (3) genes involved in regulation of gene expression; (4) genes for signal transduction. Changes of eight differentially expressed genes were confirmed by quantitative real time RT-PCR.
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Abbreviations
- cDNA-AFLP:
-
cDNA amplified fragment length polymorphism
- TDFs:
-
Transcript-derived fragments
- qRT-PCR:
-
Quantitative real time RT-PCR
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This research was funded by “11th five-year-plan” of Chinese National Science and Technology Program (2006BAD09A04; 2006BAD09A08).
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Guo, YQ., Tian, ZY., Qin, GY. et al. Gene expression of halophyte Kosteletzkya virginica seedlings under salt stress at early stage. Genetica 137, 189–199 (2009). https://doi.org/10.1007/s10709-009-9384-9
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DOI: https://doi.org/10.1007/s10709-009-9384-9