Words similar to ancestral
Example sentences for: ancestral
How can you use “ancestral” in a sentence? Here are some example sentences to help you improve your vocabulary:
With improved ability to reconstruct ancestral genomes, this group will provide an excellent opportunity to determine the role of chance and selection in the determination of genome content and in the evolution of gene regulatory systems.
Inclusion of a gene in the ancestor was not dependent on its presence in all the descendant taxa, as a gene could be ancestral but lost from some lineages or acquired after the ancestor but before divergence of some descendant taxa.
This disorder is typically associated with homozygosity for the C282Y mutation of the HFE gene (exon 2, nt 845 G→A) on Ch6p [ 1 ] . C282Y lies within an ancestral haplotype which includes the human leukocyte antigen (HLA) haplotype A*03-B*07 [ 2 3 4 5 ] . The ancestral haplotype is the predominant hemochromatosis-associated haplotype in many northwestern European countries, including Ireland [ 6 ] , Brittany [ 2 ] , Denmark [ 7 8 ] , Sweden [ 9 ] , and Germany [ 10 11 ] . This is attributed to the origin of the C282Y mutation on an A*03-B*07 haplotype in northwestern Europe and its early dissemination by Vikings [ 3 12 ] . Modification of the ancestral chromosome by recombination and admixture as a result of geographic migration explains the occurrence of chromosomes bearing C282Y in association with different HLA haplotypes [ 2 4 8 13 14 15 16 ] . Thus some non-ancestral haplotypes also occur with significantly increased frequencies in hemochromatosis patients in various countries in Europe and in descendants of Europeans [ 5 16 ] .
Spacers in the first category, which can be considered to be descended from ancestral spacers, have an average length of 55 bp ( n = 272).
The pectate lyase gene (MI00592) was identified in G. rostochiensis and H. glycines [ 17 ] and the exo-polygalacturonase (MI00252) was identified in our M. incognita data [ 21 22 ] . Because of the obvious role of nematode genes that allow endogenous production of cell-wall degrading enzymes in attacking a plant host, it has been hypothesized that their acquisition by HGT may have been key steps in the evolution of plant-parasitic nematodes from ancestral free-living forms [ 3 ] . In that model, an intermediate, symbiotic association of a soil-dwelling (but free-living) nematode with a soil bacterium possessing these enzymes is postulated before the HGT event.
Loading...