Figure 3: Gene duplications revealed by Ks analysis. | Nature Communications

Figure 3: Gene duplications revealed by Ks analysis.

From: Comparative genomics reveals adaptive evolution of Asian tapeworm in switching to a new intermediate host

Figure 3

(a) The percentage of paralogous gene pairs of duplicated genes along with Ks values are typically L shaped in the T. saginata (Tsa) and T. asiatica (Tas) genomes, indicating the occurrence of continuous gene duplication events and the losses of duplicated genes over the time. (b) Distribution of Ks values in orthologous genes with peaks indicating the splits between various flatworms T. asiatica (Tas), T. saginata (Tsa), T. solium (Tso), E. granulosus (Egr), E. multilocularis (Emu), S. mansoni (Sma) and S. japanicum (Sja). The grey bar indicates the divergence point between the Taenia and Echinococcus lineages. (c) Extensive duplications of diagnostic antigen gp50 genes in the tapeworm lineage (Taenia, Echinococcus and Hymenolepis). (d) Sequence logo shows the conserved and distinct sequence characteristics of the gp50 sequences from the tapeworms. The sequence logo was generated from 183 sequences aligned at the conserved blocks selected by Gblocks with a less stringent selection (http://molevol.cmima.csic.es/castresana/Gblocks_server.html).

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