Sentence examples for most ancient split from inspiring English sources

The TMRCA for the avian/mammalian HEV ancestor and for the rat/[human/swine] HEV ancestor suggests that the most ancient split resulted in avian and mammalian variants.

Within the latter the most ancient split lied between Penicillata and Helminthomorpha.

A sister-group relationship of non-luminous Squalidae with a clade comprising all other Squaliformes is strongly supported as the most ancient split of extant Squaliformes (Table  1) and is consistent with the fossil record [ 25, 29].

Both the modal bin of each distribution (usually resulting from the most ancient split in the family tree) and the largest modal value of dS < 1.5 (reflecting a burst in diversification within the last 100 MY) were recorded.

In the three most ancient split networks (fig. 4), archaebacteria are monophyletic but within this kingdom the euryarchaeotes are paraphyletic, consistent with the findings of other recent studies (Fukami-Kobayashi et al. 2007; Cox et al. 2008; Puigbò et al. 2009).

The split networks reconstructed for increasing T i also show that the split found in the rooted network is also the most ancient split among prokaryotes because it is the strongest split at the lowest amino acid identity thresholds and weakens when higher thresholds (more closely related proteins only) are queried (fig. 4, supplementary fig. S1, Supplementary Material online).

We find that the rRNA data cannot robustly resolve the most ancient splits within Pterygota.

Presumably, respective splitting and hybridization events took place in western Africa, because all three genera occur there in sympatry [ 1, 2], and the most ancient splits among Piliocolobus and Colobus species are also found there [ 45].

If we now extrapolate from the data shown in Figure 1, assuming that divergence in gag sequences is roughly proportional to divergence time, an age of 6 to 10 millions of years for the most ancient splits among Athila families can be estimated.

Because prokaryote evolution was long viewed as a tree-like process of lineage bifurcations, efforts to identify the most ancient microbial lineage split have traditionally focused on positioning a root on a phylogenetic tree constructed from one or several genes.

That root should, in turn, correspond to the most ancient, in terms of geological time, split in the prokaryotic world, barring the existence of lineage-specific rate fluctuations across that divide, a hefty caveat.