Figure 4
From: Gene family expansions in Antarctic winged midge as a strategy for adaptation to cold environments
The expanded Hsc70 gene family of P. steinenii. (a) Phylogenetic analysis of Hsc70 genes in the P. steinenii-specific gene family (group513) and orthologous gene family (group441). Orthologous gene families in C. elegans were designated as outgroups. Numbers at nodes are bootstrap values from 1000 replicates and GenBank Accession numbers are indicated at the ends of branches. (b) Amino acid sequence similarity matrix of Hsc70 genes. P. steinenii-specific Hsc70 (group513), orthologous groups of Hsc70 genes among in six insect species (group441), NP_006588.1 (H. sapiens), NP_034609.2 (M. musculus), and NP_503068.1 (C. elegans) were used for the similarity matrix. Percent identities were calculated using the result of BlastP. (c) Expanded Hsc70 gene families identified in the P. steinenii genome. P. steinenii-specific gene families are indicated by pink arrows and orthologous genes are indicated by yellow arrows. Other genes are indicated in blue arrows. Each arrow indicates a gene orientation (5′ → 3′).
