We here present the starting point of an until recently unadapted abstract from the Oafy Oceanographic team.
Dis- comedusae
Abstract
Statistical phylogenetic analysis of 111 5.85 and partial –
28s ribosomal DNA sequences (
total aligned length = 434 nucleotides) including jellyfishes representing
approximately 14% of known scyphozoan romedusae constitute a fifth cnidarian
class (Staurozoa) basal to a monophyletic Medusozoa (= Cubozoa, Hydrozoa, and
Scyphozoa). Phylogenetic relationships among the medusozoans are generally
poorly resolved, but support is found for reciprocal monophyly of the Cubozoa,
Hydrozoa, Corontatae and Dis-comedusae (= Semaeostomeae + Rhizostomeae). In addition, a survey
of pairwise sequence differences in Internal Transcribed Spacer One within morphospecies indicates
that scyphozoan species diversity
may be approximately twice recent
estimates based on morphological analysis. These results highlight difficulties
with traditional morphological treatments including terminology that obfuscates
homologies. By integrating molecular
phylogenetic analysis with old and
new morphological, behavioural,
developmental, physiological, and other data, a much richer understanding of
the biodiversity and evolution of jellyfishes is achievable.
We hope to expand on the possibilities contained within this facenating commencement in the not to distant future.
As mentioned in our previous bulletin "prospective activity" posted feburary 2009
"We hope that our readers will appreciate our exploration of the bottom rung, often attributed to an interest in invertebrate lifeforms."
As mentioned in our previous bulletin "prospective activity" posted feburary 2009
"We hope that our readers will appreciate our exploration of the bottom rung, often attributed to an interest in invertebrate lifeforms."
