The mt gene order of Heleophryne regis is key for understanding the evolution of mt genome rearrangements in neobatrachians given that this species is basal in this clade (see reconstructed phylogeny in Figure 1).
Despite this ambiguity, there is no evidence that this taxon is basal because it is placed within a relatively derived clade that is well supported.
However, the molecular phylogenetic position of Noctiluca is inconsistent in different analyses, and these cells possess several very novel morphological features, so some authors have questioned the interpretation that this lineage is basal among dinoflagellates [13], [16].
This clade is basal to the opossum class Ia sequences and MHC un-linked tammar wallaby class I sequences.
cDNA studies of breast cancers with underlying BRCA1 gene mutations show that the most common cancer type in this group is basal [ 26].
While nodes in the vicinity of A. linifolia do not have high bootstrap values, it does not appear that this species is basal or that it forms a single-species sister group to all other species in the genus.
S. pombe has two copies of this gene: one is basal to the Hemiascomycetes, as expected, but the second clusters with K. lactis.
In this case, Anthosactis pearseae is basal to the deep-sea/vent clade but without support.
This second mesomyarian clade is basal to a large clade that includes two previously resolved clades: Endomyaria and ABM (see [23]).
If Xenarthra is basal, this association could have originated in Afrotheria and was then lost in clade III.
Phylogenetic studies generally have shown the clouded leopard (Neofelis nebulosa) is basal to this group.
