Rather, the difference probably reflects divergences in resources– for example, the Eisen (2005) study provided hotel accommodation for all participants.
Branch lengths reflect divergence time estimates based on the fossil record.
As noted above, these differences likely reflect divergence that occurred during the Pleistocene.
It is unclear, however, whether these differences reflect divergence within the sponge lineage or innovations within the cnidarian/bilaterian lineage potentially underpinning the transition to tissue level organization.
We assume that the genome size differences among clones within B. 'Austria' are fixed for each population and reflect divergence among populations (or, incipient species).
The study showed high divergence between these two populations, but it remains to be seen to what extent the two populations reflect divergence between the two regions in general.
That this difference does not reflect divergence from the basic BSE profile is supported by the cluster analysis, which linked naturally infected BSE cases with intracerebrally BSE infected cattle.
The gene phylogeny generated from this alignment reflected divergence of PHYA, PHYB, PHYC and PHYE as a result of speciation (nodes 1A, 1B, 1C and 1E, respectively) and gene duplication (nodes 2 and 3).
Similar to our approach with csc-IntFams, we explored the possibility that species-specific intestinal proteins include interspecies homologs that could reflect divergence of otherwise conserved functions, or convergent acquisition of functions.
We suggest that structurally related homologous genes that display non-conserved memory responses indicate species-specific features reflecting divergence of the roles played by homologous proteins in the two species.
