Volume 23 | Issue 1

Circular cladogram view of the phylogenetic tree obtained from NJ analysis on 569 accessions comprising a diversity panel of 384 G. hirsutum cultivars and a collection of 185 landrace accessions in a broad collection of Upland cottons of the Americas. Spikes are colored based on groups: Group 1 (blue color; G. barbadense accessions), Group 2 (red color; Southwestern cotton), Group 3 (green color; Mexican cotton), Group 4 (purple color; Western cotton), and Group 5 (yellow color; Mid-South and Southeastern cotton), and Group 6 (light blue; Guatemalan cotton). Accessions assigned to “mixed” are indicated in black.