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Table 2 Gene duplication, Ka/Ks and divergence times of gene duplicated BURP gene pairs in three cotton species

From: Genome-wide identification and expression analysis of the BURP domain-containing genes in Gossypium hirsutum

Duplication gene 1 Duplication gene 2 Identity Duplicate type Ks Ka Ka/Ks Purifying selection Age/MYA
GaBURP3 GaBURP4 94.55 tandem 0.0424 0.0239 0.5764 Yes 8.15
GrPG3 GrPG2 80.84 segment 0.6863 0.1050 0.1530 Yes 263.96
GrRD1 GrRD2 96.12 tandem 0.0498 0.0205 0.4116 Yes 19.15
GhPG2 GhPG1 96.76 segment 0.0615 0.0142 0.2309 Yes 23.65
GhPG4 GhPG3 98.89 segment 0.0325 0.0049 0.1508 Yes 12.50
GhPG5 GhPG6 97.4 segment 0.0260 0.0113 0.4346 Yes 10.00
GhBUPR2 GhBUPR1 97.44 segment 0.0684 0.0111 0.1623 Yes 26.31
GhBUPR11 GhBUPR10 94.65 segment 0.0424 0.0235 0.5542 Yes 16.31
GhBUPR4 GhBUPR3 96.23 segment 0.0353 0.0184 0.5212 Yes 13.58
GhBUPR7 GhBUPR6 95.91 segment 0.0443 0.0188 0.4244 Yes 17.04
GhBNM5 GhBNM6 94.65 segment 0.0683 0.0295 0.4319 Yes 26.27
GhBNM7 GhBNM8 96.03 segment 0.0414 0.0173 0.4179 Yes 15.92
GhBNM2 GhBNM1 97.51 segment 0.0147 0.0126 0.8571 Yes 5.65
GhRD1 GhRD3 92.84 tandem 0.0591 0.0326 0.5516 Yes 22.73
GhRD2 GhRD4 95.82 tandem 0.0542 0.0218 0.4022 Yes 20.85
  1. Ka nonsynonymous substitution rate, Ks synonymous substitution rate, MYA million years ago
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