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Fig. 4 | BMC Biology

Fig. 4

From: The house spider genome reveals an ancient whole-genome duplication during arachnid evolution

Fig. 4

Hox gene complement and hypothetical Hox clusters in chelicerate genomes. Hox gene clusters in the spider Parasteatoda tepidariorum, the scorpion Centruroides sculpturatus, and in the tick (a). For details, see Additional file 9: Table S4. Transcription for all genes is in the reverse direction. Genes (or fragments thereof, see Additional file 9: Table S4) that are found on the same scaffold are joined by black horizontal lines. Abbreviations: Ptep Parasteatoda tepidariorum, Cscu Centruroides sculpturatus, Isca Ixodes scapularis. b Gene tree analysis of individual Hox genes support a shared duplication event in the common ancestor of spiders and scorpions in all cases except Antennapedia

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