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It was found that these early derived SPC+ cells did not express surfactant protein A (SPA) and B (SPB), but possessed robustly proliferative capacity, suggesting that they may be early primitive progenitor cell type(s).
The majority of early derived in vitro dividing cells failed to express both HLA-ABC and HLA-DR antigens although they expressed high levels of tumour associated antigens.
Ten of the 14 families are represented in Giardia lamblia ([ 44- 47]; but see [ 48, 49]), an early derived eukaryote, suggesting that most families were already present early in the evolution of extant eukaryotes.
The red (C. merolae) and green (C. reinhardtii) algae were included in our analysis because they are inferred to be early derived members of the lineage that gave rise to modern heterokonts and embryophyta [ 51], respectively.
For EFL-2-Ce, as no function was reported and its sequence is highly diverged, we have no cues whether EFL-2-Ce is a product of species-specific duplication from EFL-1-Ce or a function lost gene which early derived from E2F1/2/3 subgroup.
We generate in this study the first complete ancient Khoesan mtDNA, identifying not only a new early derived maternal lineage, but confirm through archeological and osteological analyses that ancient maternal human lineages were present in Southern African marine foragers prior to the arrival of southward migrating pastoralists.
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Fuxianhuia shares a tripartite pre-stomodeal brain and nested optic neuropils with extant Malacostraca and Insecta2,6, demonstrating that these characters were present in some of the earliest derived arthropods.
For the second plot field data on spatial distribution of soil bulk density, organic carbon content and soil moisture content were used as input data for earlier derived pedotransfer functions, allowing to estimate soil thermal diffusivity.
Note that this result was earlier derived in [16] but was restricted to the case of BPSK.
These olfactory ratios were then plotted onto evolutionary trees that other researchers had earlier derived for bird evolution.
The compound 2 has been earlier derived from DHEA (dehydroepiandrosterone) by the action of 17β-hydroxysteroid dehydrogenase type 7 enzyme [12].
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