The correspondence analysis between amino acids usage and niche preferences was performed using "seqinr" (Charif and Lobry 2007) and "ca" (Nenadic and Greenacre 2007) packages in R. The complete chromosome of C. sputorum bv.
Although mobile giants like Samsung and Apple, and specialist hardware makers like Jawbone and Pebble, are all crowding into the market, actual usage is fairly niche today.
And while the Segway never gained mass usage, it certainly found its niche in areas like city tours.
Reference [51] indeed uses the term niche to characterize these distinctive components in the usage of different future expressions, suggesting that differentiated niches are critical to their ongoing use in the language.
This niche specificity accounts for the broad carbon source usage of KT2440 and therefore, most of the known soil carbon sources were captured in iJN746 (Table 2).
Despite the variability in genome and proteome sizes, the behavior observed in figure 6 A is maintained when using the whole proteome for amino acids usage calculations, suggesting global reach patterns that link nonsynonymous evolution with niche preferences.
We suggest that differences found in amino acids usage among Campylobacter species may be attributed to adaptive evolution driven by niche-specific environmental conditions.
A switch in carbon-source usage is postulated for bacteria that changed from an extra- to an intracellular niche (Boshoff and Barry, 2005; Eisenreich et al., 2010).
To gain more insights on the mechanisms involved in niche preferences among Campylobacter species, we centered our attention on their predicted secretomes and the differential amino acids usage within the whole proteomes and the secretomes.
Niche farming is just that — niche.
