phthirus การใช้

• Bizarrely, its closest relative is Phthirus gorillae, the louse that infects the gorilla.
• Reed et al . propose a " Phthirus " species host-switch around 3-4 million years ago.
• Using phylogenetic and cophylogenetic analysis, Reed et al . hypothesized that " Pediculus " and " Phthirus " are sister taxa and monophyletic.
• A perplexity that louse specialists have not yet resolved is that the pubic louse belongs to a different genus from Pediculus, being known to taxonomists as Phthirus pubis.
• Some experts believe that Phthirus lice have infected the primate line for millions of years but have somehow been evicted altogether by chimpanzees and confined to the groin in humans.
• Unlike the genus " Pediculus ", the divergence in " Phthirus " does not match the age of host divergence that likely occurred 7 million years ago.
• Human head and body lice ( genus " Pediculus " ) share a common ancestor with chimpanzee lice, while pubic lice ( genus " Phthirus " ) share a common ancestor with gorilla lice.