The genus is the generic name that includes closely related species; the gray wolf, for example, is classified as Canis lupus and is a close relative of the coyote found in North America and designated as Canis latrans, their systematic relation indicated by their sharing the same genus name, Canis.
This was accomplished by collecting all available genomic sequences sharing the same genus or serotype as the sequence being investigated.
Intergenic regions (IGRs) in each replicon were compared using BLASTN 2.0 [9] (with E set to 5e-3 and B and V each set to 10,000) to a database including all IGRs in all other replicons except i) IGRs from the same strain ii) IGRs from different strains of the same species (strains sharing the same genus and species names) and iii) IGRs with an AT or GC content above 75%.
The distance observed between the Spotted Green Pigeon and the Nicobar Pigeon in the phylogeny of Figure 1E (0.11 substitutions per site) is significantly greater than that observed within other Pigeon species; the average pairwise difference for taxa sharing the same genus and species name is 0.01 ± 0.01 substitutions per site (one sample t(13) = -35.97, p = 1.05 × 10-14).
The observed distance however appears to correspond with that of other heterospecific Pigeon taxa, the distance does not significantly differ from the average pairwise distance between species sharing the same genus but not species name (0.09 ± 0.04 substitutions per site, one sample t(14) = -1.48, p = 0.08).
If a phage shares at least 40% of its proteins (those with a BLASTP score ≥ 75) with a reference phage such as P2, then these two phages can be considered as part of the same genus, while if it shares 20-39% of its proteins with a reference phage, then they can be considered as part of the same subfamily [ 34].
Interestingly, although the colonizing strains were almost always distinct, infants often shared bacteria of the same genus or species.
Sharing similar thermostability from the same genus, Thermotoga neapolitana xylanase was stable at 90°C whereas Thermotoga petrophila xylanase was only stable at 80°C [ 23, 30].
This is due to the fact that closely related organisms from the same genus share a lot of genes.
First, this inversion is not shared by other members of the same genus and it is more likely that the most recent chromosomal rearrangement occurred in NLE.
