Sentences with phrase «in cnidarians»

Moreover, the presence of DMRT1 gene, also present in cnidarians, confirms «the great heterogeneity of sponges despite their simple morphology,» affirms the expert.

Not exact matches

Ana Riesgo states that «they have more complex morphological characteristics than other sponges and, in the case of Corticium, they follow the same process of gametogenesis than cnidarians.»

In order to determine what the root of their family tree looked like, biologists need reliable dating information for the most ancient animal subgroups — the sponges, cnidarians, comb jellies and placozoans.

According to Prof. Holstein, the leading hypothesis assumes that they originated from organelles of similar construction and function in unicellular organisms that were absorbed as symbionts by early precursors of cnidarians.

In evolutionary convergence, two genetically unrelated organisms evolve similar traits, and biologists at Heidelberg University have now uncovered an example of convergence at the subcellular level in unicellular organisms and cnidarianIn evolutionary convergence, two genetically unrelated organisms evolve similar traits, and biologists at Heidelberg University have now uncovered an example of convergence at the subcellular level in unicellular organisms and cnidarianin unicellular organisms and cnidarians.

Recent advances in sequencing cnidarian transcriptomes have revealed the unexpected genetic complexity of these morphologically simple basal organisms.

The apparent link between environmental stress and degraded coral health, and the recent information demonstrating the complexity of the cnidarians, highlights the need to now understand the biology of the coral host and host responses in these patterns of change.

Our analyses support the grouping of placozoans, cnidarians and bilaterians into a eumetazoan clade, with demosponges as an earlier - branching lineage25, and reject the diploblast — triploblast phylogeny17 in favour of a more conventional «sponges first» tree19, 20 (Fig. 1d).

In our discussion below we therefore refer to descendants of the placozoan — cnidarian — bilaterian last common ancestor as Eumetazoa, and reserve «Eumetazoa sensu stricto» for the more limited clade defined by descendants of the cnidarian — bilaterian ancestor.

This indicates that portions of the 15 ancestral linkage groups inferred for the cnidarian — bilaterian ancestor22, 24 were already in place in the demosponge — eumetazoan ancestor.

An ancestral form belonging to this receptor superfamily was probably present in the last common metazoan ancestor and independently diversified in poriferan and cnidarian lineages.