The highly divergent ancestral KRAB-like domain [ 3] was not found in these searches.
White clover (Trifolium repens L). is an allotetraploid species possessing two highly collinear ancestral sub-genomes.
In conclusion, a comparative genomics approach was used to identify novel sequences acquired by the highly conserved ancestral Lep1 Helitron.
No paths involve an immediate transformation of the highly specific ancestral TF into a specific protein with a new but narrow set of targets.
A rich veterinary literature of feline disease pathogenesis and the demonstration of a highly conserved ancestral mammal genome organization make the cat genome annotation a highly informative resource that facilitates multifaceted research endeavors.
Two independent populations (Low and High) were derived from a common source, a large and highly variable ancestral population, and subject to divergent artificial selection on flower size for nine generations.
This finding corroborates the assumption of an epidemic bacterial population structure within a background population comprising a network between different genotypes, and that superimposed strains emerge from highly adaptive, ancestral genotypes and may be persistent for decades (35 ).
An early bottleneck caused by massive gene loss left a highly reduced ancestral proteome which included a core set of genes whose orthologs in yeast are among the most essential, highly connected, and highly expressed genes; factors that help to explain their retention and resistance to further gene loss.
This is supported by the recent study of the megabase level sequencing in 3B, which estimated 50 000 genes per diploid genome as a result of the additional non-collinear genes interspersed within the highly conserved ancestral grass gene backbone, suggesting accelerated evolution in the Triticeae lineages.
Likewise, for twofold degenerate sites only, G tests were highly significant for ancestral C-ending and T-ending codons (P < 10−15) and for ancestral G-ending codons (P = 0.00012); however, there was no significant heterogeneity among codon pairs for ancestral A-ending codons (P = 0.403).
