Figure 3

Relative mRNA levels of 12 DEGs in banana and plantain seedlings were determined by quantitative RT-PCR analyses. Six-leaf stage seedlings were incubated at 10°C for the indicated time. Transcript abundances of genes encoding dehydration-responsive element-binding protein 1D (A), ethylene insensitive 3-like 1 protein (B), probable cytosolic iron-sulfur protein assembly protein 1 (C), zinc finger protein 1 (D), U-box domain- containing protein 25 (E), zinc finger CCCH domain-containing protein 33 (F), UDP-glucose 6-dehydrogenase (G), probable xyloglucan endotransglucosylase/hydrolase protein 23 (H), ethylene-responsive transcription factor RAP2-13 (I), calcium-binding protein KIC (J), transcription factor ICE1 (K) and MYBS3 (L) from both banana and plantain were determined and compared across the time course of cold stress. Data represent means ± SD in four replicates (n = 4). The different lowercase letters labeled above columns indicate a significant difference at p ≤ 0.05 between the columns by Duncan’s test using SPSS statistical software (version 16.0, SPSS Inc. Chicago, IL). The columns with the same letters mean no significant difference (p > 0.05) between each other.