Table 2. Average K2P distance and diagnostic sites for the eight species comprising the genus Thunnus.
Species (sample size) | Albacore | Bigeye tuna | Blackfin tuna | Longtail tuna | Northern bluefin tuna | Pacific bluefin tuna | Southern bluefin tuna | Yellowfin tuna |
Average K2P distance | ||||||||
Albacore (12) | 0.00172 | 0.02026 | 0.01574 | 0.01877 | 0.00313 | 0.01924 | 0.01773 | 0.01755 |
Bigeye tuna (15) | 268, 286, 313, 358, 400, 478, 484 | 0.00313 | 0.00807 | 0.00666 | 0.01888 | 0.0106 | 0.0108 | 0.00509 |
Blackfin tuna (9) | 313, 358, 400, 478, 484, 535 | 268, 286, 400, 484, 508 | 0.00386 | 0.00721 | 0.01616 | 0.01113 | 0.01246 | 0.0052 |
Longtail tuna (5) | 262, 268, 313, 358, 478, 484, 535 | 262, 286, 400 | 262, 286, 400 | 0.00123 | 0.01685 | 0.00947 | 0.00988 | 0.00353 |
Northern bluefin tuna (13) | 268, 313, 337, 409, 478, 484, 535 | 271, 286, 337, 358, 400, 409 | 268, 271, 358, 400, 409, 484 | 262, 271, 337, 358, 400, 409, 484 | 0.00239 | 0.01833 | 0.01494 | 0.01651 |
Pacific bluefin tuna (5) | 475 | 268, 286, 313, 358, 400, 475, 478, 484, 535 | 313, 358, 400, 475, 478, 484, 535 | 262, 268, 313, 358, 475, 478, 484, 535 | 268, 271, 313, 337, 409, 475, 478, 484, 535 | 0.00046 | 0.00955 | 0.00774 |
Southern bluefin tuna (5) | 268, 313, 337, 478, 484, 508, 535 | 286, 337,358, 400, 484, 508 | 268, 337, 358, 400, 508 | 262, 337, 358, 484, 508 | 271, 337, 409, 484, 508 | 268, 313, 337, 475, 478, 484, 508, 535 | 0.00276 | 0.00867 |
Yellowfin tuna (23) | 268, 313, 358, 475, 478, 484, 535 | # | 268, 358, 400, 475, 484 | 262, 358, 475 | 271, 337, 358, 409, 475 | 268, 313, 358, 475, 478, 484, 535 | 337, 358, 475, 484, 508 | 0.00195 |
Diagnostic sites |
# Private compound diagnostic. The predominant nucelotide sequence for T. albacares is C262 C268 C271 C286 A313 C337 G358 T400 A409 T475 T478 G484 A508 C535. The majority of T. obesus (nā=ā10) can be differentiated by T286 G400. One T. obesus (DQ835865) is differentiated by A286, two are differentiated by C400 (DQ835861, DQ835862), and two by G400.