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Its a blog about biology with special emphasis to evolutionary developmental biology ,hox genes and Drosophila .
Recent Posts Tagged With 'trichoplax'
New tree of animal suggests nervous system evolved only once in animal history
Scientists from France,Germany and Canada have recently put forward a new tree of life based on the most comprehensive phylogenomics study to date ,investigating 128 genes from a total of 55 species – including nine poriferans, eight cnidarians, t...
Sponges regain their tag of most primitive animal on Earth
There was a mad rush to get to the base of animal tree of life in the past twelve months, in order to establish most primitive animal on our planet, with many phylogenomics studies contradicting each other. In April 2008, Cassey dunn et el published ...
New tree of life divides diploblastic and triploblastic animals
New study conducted by Schierwater, B. et al. have shown that the Triploblastic bilaterians and diploblastic animals ( Placozoa,Sponges,Ctenophores and Cnidarians) animals , probably separated very early, at the very beginning of animal evolution and...
Meet the most primitive animal group - Ctenophores
A recent phylogenomics study carried out by Cassey Dunn and colleagues placed Ctenophores ( comb jellies) at the base of metazoan tree , meaning a place much lower than phylas occupied by more morphologically simple animals like Porifera ( sponges ) ...
Origin and evolution of microRNAs
Gene silencing through RNA interference (RNAi) pathway is a well known phenomenon ,where in long double stranded is processed into small interfering RNAs and which in turn silence the genes in sequence specific manner.These micro RNAs are pretty much...
Rosetta stone for understanding evolution : Trichoplax adhaerens
Yale molecular and evolutionary biologists in collaboration with Department of Energy scientists produced the full genome sequence of Trichoplax, one of nature’s most primitive multicellular organisms, providing a new insight into the evolution...
Functional equivalence of proteins among animals
Homologous proteins from primitive species can functionally substitute for thier modern counterpart : One of the well known and widely accepted fact about evolution is theory of common descent stated by Charles Darwin, which states that that all orga...
Early Antennapedia gene Family : Evidence from Trichoplax genome
Homeodomain containing transcription factors are vital for proper development and differentiation in animals,plants and fungi. This 60 amino acid conserved DNA binding motif is found in six different class of proteins: ANTP, PRD, POU, LIM, SIX and TA...
