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Table 2 Description and Pearson correlation coefficients (R) and their statistical significance between dN/dS (based on all substitution categories together) and body mass reported in different studies. Significant correlations are highlighted in italics

From: GC-biased gene conversion conceals the prediction of the nearly neutral theory in avian genomes

Study (dataset) Number of genes Description Neornithes Neoaves
R p value R p value
Weber et al. [31] 921 Alignments from Jarvis et al. [57] present in all 48 species − 0.43 2.70 × 10 − 3 NA NA
Figuet et al. [30] 1077 Alignments from Jarvis et al. [57] for orthologs that are also present in mammals and non-avian sauropsids.
Max missing data of 6 species
0.13 3.20 × 10− 1 NA NA
Botero-Castro et al. [32] (Figuet+HMMclean) 1077 Dataset from Figuet et al. 2016 + alignment filtering based on HMMclean 0.17 2.80 × 10− 1 0.42 4.00 × 10 − 3
Botero-Castro et al. [32]
(Botero-Castro)
1077 +  1245 Figuet+HMMclean dataset +  1245 previously non-annotated GC-rich genes present in at least 10 species 0.23 1.30 × 10− 1 0.59 7.34 × 10 −5
This study 7986 Alignments from Jarvis et al. [57]
Max missing data of 6 species
0.08 6.09 × 10−1 0.19 2.19 × 10−1