SILVA94

There is a new release (94) of the SILVA database of ribosomal DNA sequences. 23,133 Metazoans, 88,997 Eukaryotes and 606,879 SSU sequences in total.I’m having a few problems installing ARB on a new machine but need to start exploring this phenomenal phylogenetic resource more closely. One thing I would love when browsing large trees purely…

SILVA 93 released

The rDNA database SILVA has a new release- SILVA 93.More sequences and some new tools have been added.Metazoa now contains 21,901 accession numbers.[eukarya 83,915, all domains 563,587]

20,000 leaves on my tree

Apologies to Jules Verne, but on 30.10.07 there were 20,363 Metazoan SSU rDNA accession numbers in the Silva 92 database. My immediate questions- can a reliable phylogeny be constructed from this by a biologist with average computing resources? Can the resulting tree be informative (or is it too big to get any meaningful information onto…