The phrase "a deep divergence between" is correct and usable in written English.
It can be used to describe a significant difference or disagreement between two or more entities, ideas, or perspectives.
Example: "There is a deep divergence between the two political parties on economic policy."
Alternatives: "a significant gap between" or "a profound difference between".
In his recent memoir, "Innocent Abroad," Indyk wrote, "There is a deep divergence between Iran and Syria, captured in the fact that at the same time as Iran's president threatens to wipe Israel off the map, his Syrian ally is attempting to make peace with Israel.... Should negotiations yield a peace agreement, it would likely cause the breakup of the Iranian-Syrian axis".
Data from the mitochondrial cytochrome b gene indicate a deep divergence between populations east of Mississippi and those further west, which suggests that the western populations may be recognized as a separate species, Oryzomys texensis.
Altogether, these data suggest a deep divergence between NWA and NEA populations of L. saxatilis and a long continuous history of the species in North America thus allowing us to reject the hypothesis for population-level extinction during the LGM in the NWA and adding L. saxatilis to the list of species that appear to have survived the LGM in NWA refugia (see [7], [8] for other species).
Earlier nuclear white, ribosomal ITS, and mitochondrial COI sequence data together established a deep divergence between genotypes 1 and 2 [ 10, 28], interpreted as incipient species [ 10].
This division is similar to the results of earlier phylogenetic studies of group-I PLA2 genes [ 11] and likely reflects a deep divergence between these groups.
The median-joining haplotype network of each marker indicated a deep divergence between the IWP and ACEP species and an intricate relationship among the samples of the latter.
The hypothesis of retention of ancestral polymorphism seems most likely and is consistent with the lack of any deep divergence between C. forbesii and C. guadalupensis plastid DNA and the discovery of the second-most frequent haplotype (H24) in three other allopatric New World species of Callitropsis.
Our results suggest that D-M174 represents an extremely ancient lineage of modern humans in East Asia, and a deep divergence was observed between northern and southern populations.
Compared to the other segments, the tree topology of the NS segment was characterized by a very deep divergence between the two sub-lineages formed by the A and B alleles which represent two distinct gene pools, and consequently has a much older tMRCA of 226 years (95% HPD: 112 273).
Population substructure and recent admixture seem less likely given that mtDNA and the four other nuclear gene loci for which data are available do not display any evidence of a similar deep divergence between two clades (although Tpi does show the two pheromone strains to be nearly exclusive groups [ 22]).
Altogether, the topology of the putative species tree in Xanthomonas reflects a scenario of deep divergence between species, mediated by recurrent gene flow at the same time [ 16].
