Figure 1: Structures, sequences, and expression analysis of GhTOR genes.

(A) Structure of GhTOR genes. Lines represent introns and the solid black rectangles signify exons. (B) Comparison of cotton TOR protein sequences with that from other organisms. Each value indicates the percentage of identity with the corresponding domain sequences of GhTOR1. The number in brackets represents the number of amino acids. (C) Phylogenetic relationship between the cotton TOR proteins and homologs from other organisms. The phylogenetic tree was generated with MEGA4.0 using the neighbor-joining methods. (D) Comparison of amino acid sequences of the kinase domains of cotton TOR proteins with that from other representative organisms. (E) Expression levels of two GhTOR genes in various cotton tissues. Error bars represent ± SD for three independent experiments. Gh, Gossypium hirsutum; At, Arabidopsis thaliana; Hs, Homo sapiens; Sc, Saccharomyces cerevisiae.