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Fig. 2 | BMC Plant Biology

Fig. 2

From: Comparative transcriptome analysis reveals evolutionary divergence and shared network of cold and salt stress response in diploid D-genome cotton

Fig. 2

Sequence diversity of four species of cotton. a Unrooted phylogenetic tree of four species using SNPs, which obtained from transcriptomic data. The scale bar represents the expected number of substitutions per site. b The relationship showed by the principal component cluster among four species. c Phylogenetic tree of nine genomes using the identified orthologous genes. The scale bar represents the expected number of substitutions per site. d Boxplot of the dN/dS ratio of nine genomes. Wild species, red boxes. Cultivated species, green boxes

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