Cold tolerance in Osmotin transgenic tomato (Solanum lycopersicum L.) is associated with modulation in transcript abundance of stress responsive genes

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Table 1 Summary of transcript regulation of genes over the respective untreated controls

Gene	Transcript regulation on cold exposure over the respective untreated controls
	2 h		24 h
	Wild type	Transgenic	Wild type	Transgenic
Osmotin	Down^b	Up^a	Down^c	Down^c
CBF1	Up^a	Up^a	Unchanged^b	Up^b
P5CS	Down^b	Up^a	Down^c	Unchanged^b
APX	Unchanged^b	Up^a	Up^a	Up^b

The transgenic and wild type tomato plants were exposed to cold treatment for 2 and 24 h. The significant (P ≤ 0.05) differences in transcript regulation (up, down or unchanged) among the cold and control treatments are marked with different letters.