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Fig. 7 | BMC Biology

Fig. 7

From: Morphological and Transcriptomic Analysis of a Beetle Chemosensory System Reveals a Gnathal Olfactory Center

Fig. 7

Expression of T. castaneum ionotropic glutamate-like receptors (IRs). Heat map showing the expression level of the 23 IRs as a log2[RPKM + 1] value in different tissues [adult antennae, head (missing antennae but including mouthparts), mouthparts, legs, and body]. The candidates are ordered according to their chromosomal localization (Additional file 9: Figure S5b). Horizontal brackets above indicate clustering in the genome. The arrowheads represent the orientation of the open reading frame. The expression levels are represented by a greyscale with highest shown expression levels labeled black. The asterisks mark statistically significantly differentially expressed genes compared to body (based on biological replicates of five antennal, two head, three mouthpart, two leg, and two body samples). The red asterisks represent up- and the blue down-regulation (p values adjusted are * < 0.05, ** < 0.01, and *** < 0.001). IR ionotropic glutamate-like receptor, RPKM reads per kilobase per million

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