The transcriptomes from different organs and tissues of western poplar, eucalyptus, soybean and common bean were studied. The expression level of cellulose synthase genes was notably different in different types of tissues and organs in studied plants. For common bean and eucalyptus transcriptome the domination of certain cellulose synthase genes was typical. These prevailing genes made up more than 50 % of the total expression pull of cellulose synthases. On the contrary, cellulose synthase expression pulls of wes-tern poplar and soybean were distributed between multiple genes. The different expression strategies of CesA-genes may reflect a phylogenetic processes that occurred in genomes studied.
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