Figure - PMC

Skip to main content

An official website of the United States government

Here's how you know

Here's how you know

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

View full-text article in PMC

. 2013 Jan 25;30(5):1051–1059. doi: 10.1093/molbev/mst013

Search in PMC
Search in PubMed
View in NLM Catalog
Add to search

© The Author(s) 2013. Published by Oxford University Press on behalf of the Society for Molecular Biology and Evolution.

This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0/), which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

PMC Copyright notice

Fig. 2. — The three leftmost pairs of columns represent comparisons between the data set of 27 Hawaiian Schiedea species (dark gray bars) and three mainland plant groups represented by over 20 species each (Poaceae, Asteraceae, and Fabaceae; light gray); the following five pairs of columns represent comparisons between the subset of seven Schiedea species (dark gray bars) and five mainland plant groups represented by 6–8 species each (Helianthus, Populus, Cichorieae, Citrus, and Solanum; light gray). (A) d_N/d_S estimated assuming a single ratio for all codons and branches of a tree (M0 model) and averaged over all studied genes; (B) proportions of codons under strong purifying selection (with d_N/d_S < 0.05), calculated using model M8 implemented in PAML; (C) proportions of codons under strong positive selection (with d_N/d_S > 2), calculated as in (B). Each of eight pairs of columns represents data averaged across 20, 14, 13, 19, 15, 14, 12, and 10 genes, respectively. Differences between Schiedea and three family-level mainland groups (Poaceae, Asteraceae, and Fabaceae) were significant (P < 0.05; the Kruskal–Wallis test), with the exception of the comparison of purifying selection between Schiedea and Fabaceae (B-3). Differences between Schiedea and the genus-level mainland groups (Helianthus, Populus, Cichorieae, Citrus, and Solanum) were not significant (P > 0.05; the Kruskal–Wallis test), with the exception of the comparisons for average d_N/d_S and purifying selection between Schiedea and Cichorieae (A-6 and B-6). All presented data are back-transformed from log transformation performed to calculate 95% confidence interval shown by error bars. Original values are presented in the supplementary table S6, Supplementary Material online.