Table 1.
Sequence characteristics of the 18S rRNA gene from 8 species in the genus Acartia, and 184 other copepod species.
Fig 1.
Entropy plot calculated based on site variability in an alignment of 184 copepod 18S rRNA genes, and the distribution of variable regions.
A trend line represents the mean variability for successive windows of 20 positions.
Fig 2.
A comparison of the nucleotide divergences of the copepod 18S rRNA genes of different regions.
184 18S rRNA genes representing 184 copepod species (excluding species in the genus Acartia) were used to calculate pairwise genetic distances using p-distance. Values are shown as means ± SD. Variable names are consist with Table 1.
Table 2.
Copepod 18S rRNA genes used in the statistical similarity analysis.
Fig 3.
The boxplot distribution of sequence similarities for different 18S rRNA gene regions in the intra-species (S), inter-species but intra-genus (G), inter-genus but intra-family (F), inter-family but intra-order (O), and inter-order (I) categories.
The central boxes represent the middle three quarters of the data. The total number of samples in each plot is listed at the bottom of each box.
Table 3.
The best and lowest similarity thresholds for taxonomic resolution.