The evolution of emerging human viral pathogens, in particular, fast evolving RNA viruses that have been sampled through time.Inferring evolutionary and population dynamic processes from molecular sequence data.
These marine carnivores bear notable raptorial appendages for smashing or spearing prey.
We investigated the evolutionary relationships among stomatopods using phylogenetic analyses of three mitochondrial and two nuclear markers.
Our study provides insight into the evolutionary timescale and systematics of Stomatopoda, although further work is required to resolve with confidence the phylogenetic relationships among its superfamilies.
Stomatopoda is one of the most distinctive orders of Crustacea.
Ancestral state reconstructions revealed that the most recent common ancestor of extant stomatopods had eyes with six midband rows of hexagonal ommatidia.
Hexagonal ommatidia are interpreted as plesiomorphic in stomatopods, and this is consistent with the malacostracan ground-plan.
Commonly known as mantis shrimps, stomatopods are benthic, marine carnivores that are common in tropical and subtropical coastal waters (Schram et al., 2013).
They are among the most efficient crustacean predators, having unique adaptations for hunting (Ahyong & Jarman, 2009).
Our analyses recovered the superfamily Gonodactyloidea as polyphyletic, with Hemisquilla as the sister group to all other extant stomatopods.
A relaxed molecular clock, calibrated by seven fossil-based age constraints, was used to date the origin and major diversification events of stomatopods.
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