Figure 6

Phylogenetic analysis of (+)-δ-cadinene synthase (CDN) family genes and their genome distribution.
(a) The amino acid sequences of CDNs of G. arboreum (Cotton_A), G. raimondii (Gorai), G. hirsutum (Gh) and G. barbadense (GOBAR) and T. cacao (Thecc) were used to build the phylogenetic tree using a neighbor-joining algorithm via the MEGA software. The Arabidopsis thaliana sesquiterpene synthase gene At5g23960 was used as a phylogenetic outgroup. (b) Chromosomal locations of the CDN genes in four Gossypium species as indicated.