Sentences with phrase «metazoan phyla»

Lasting for about the next 20 — 25 million years, it resulted in the divergence of most modern metazoan phyla.

Not exact matches

The new study, a collaborative effort by groups led by Professor Gert Wörheide (Chair of Paleontology and Geobiology at LMU) and Dr. Davide Pisani (Bristol University, UK) reaffirms the traditional view that the sponges were the first phylum to diverge from the common ancestor of metazoans.

Sponges or Porifera — there are over 8,000 species currently recognised — are the most basal phylum of metazoans.

Given that sexual reproduction is widespread among animals and sperm production appears to be present in all major phyla of metazoan animals, it raised a question whether any male - biased reproductive gene could be exempt from such selective pressure and remain conserved through extended evolutionary distances.

We identified homologs of Boule in the major phyla of metazoans, reconstructed the evolutionary history of Boule, and began to determine its functional divergence.

Representative species of each major metazoan taxon (mostly phylum) were analyzed for the presence or absence of Boule and Dazl homologs.

Sexual reproduction in which male animals produce motile sperm often with flagellum is found in all major phyla of metazoan animals [84].