Skip to main content
Fig. 2 | BMC Biology

Fig. 2

From: The genome of the giant Nomura’s jellyfish sheds light on the early evolution of active predation

Fig. 2

Gene family relationships of cnidarian and metazoan species. a Venn diagram of the number of unique and shared gene families among three cnidarian classes (Scyphozoa: Nemopilema nomurai and Aurelia aurita; Hydrozoa: Hydra vulgaris and Clytia hemisphaerica; Anthozoa: Acropora digitifera and Nematostella vectensis;). b Gene family expansions and contractions in the Nemopilema genome. Numbers designate the number of gene families that have expanded (red, +) and contracted (blue, −) after the split from the common ancestor. c The proportion of Nemopilema genes in each evolutionary era. Most Nemopilema genes (~ 80%) are ancient (~ 1877 Mya), a few (~ 3%) are of intermediate age (~ 659 Mya), and a significant fraction (~ 17%) are relatively young (~ 147 Mya)

Back to article page