Let b i be the length of the branch i and p i A and p i B are the taxa proportions descending from the branch i for community A and B, respectively.
At the same time, INDUS ensures that the abundant taxa proportions are not reduced to inappropriately low levels in scenarios wherein the query sequences originate from taxonomic clades having a high database representation.
Similar to varying higher taxa proportions in mussel aggregations at GC of this study, the tubeworm aggregation at the East Pacific Rise vent site Riftia Field also exhibited a high variability (Gollner et al., 2007).
These matrices were analyzed using a DMM modeling framework [ 28] to identify sample groups, where each sample group (also known as a Dirichlet component or cluster) can be summarized by a vector of taxa proportions.
The mean vector of taxa proportions for component PP2 (older and infected) is very close to that of component PN2 (older and uninfected) indicating that these two subject groups have very similar taxonomic proportions, with no statistically significant differences (Fig. 7, Additional file 1: Table S6).
Across all taxa, the proportion of families with unknown or ambiguous function is twice as large for creations (1,192 unknown+360 ambiguous/2,278 total creations = 68.1%) as for families included in the full statistical analysis (896 unknown+1,586 ambiguous/9,990 total families = 24.8%).
For example, 19% (13/70) of the strain RM4018 proteins involved in DNA replication and repair have either no homologs or homologs of low similarity (≤ 35% identity) among the other epsilonproteobacterial taxa; this proportion increases to 37% (26/70) if proteins with homologs only within the Campylobacteraceae are included (Table 3).
Posterior probabilities (PP) values were assigned to every possible grouping of taxa in proportion to the number of times it is sampled.
To identify intestinal bacteria taxa, whose proportions correlate with body mass index and lipid levels, and to determine whether lipid variance can be explained by microbiota relative to age, sex, and host genetics.
Compared to the other taxa, a higher proportion of seabird records were found in the Pacific NE, Arctic, and Indian-Antarctic.
