Bioscience Evidence 2025, Vol.15, No.5, 219-227 http://bioscipublisher.com/index.php/be 221 Figure 1 The evolution of the allotetraploid cotton genome (Adopted from Huang et al., 2020) Image caption: a, Inferred phylogenetic analysis among Gossypium and other eudicot plants. b, Summary of phylogenetic analysis with the approximately unbiased test in 10-kb windows. c, Distribution of Ks values for orthologous genes among cotton genomes. Peak values for each comparison are indicated in the parentheses. d, Comparisons of identical sites in orthologous genes. Violin plots summarize the distribution of identical sites. The center line in each box indicates the median, and the box limits indicate the upper and lower quartiles of divergence (n = 20 types of synonymous mutation). P values were derived with Student’s t-test. e, Phylogenetic and ancestral allele analysis based on SNPs. The red, blue and green triangles represent the collapsed 21 A2 accessions, 14 A1 accessions and 30 (AD)1 accessions, respectively. The percentage value indicates the percentage of ancestral alleles for each species that were identical to those of the D5-genome. f, Number of nucleotide variations in A1 or A2 compared with At1 across the chromosomes. g, A model for the formation of allotetraploid cotton showing fiber phenotypes from the (AD)1 (accession TM-1), the D5, the A1 (var. africanum) and the A2 (cv. Shixiya1). Scale bar, 5 mm. h, A schematic map of the evolution of cotton genomes. Major evolutionary events are shown in dashed boxes (Adopted from Huang et al., 2020)
RkJQdWJsaXNoZXIy MjQ4ODYzNA==