Figure 2 in The bumblebees of the subgenus Subterraneobombus: integrating evidence from morphology and DNA barcodes (Hymenoptera, Apidae, Bombus)

Figure 2. Estimate of phylogeny for 212 samples of all 11 Subterraneobombus species by Bayesian analysis of CO1 barcode data (frame length 658 nucleotides, sequence data available from BOLD, specimen data available from the DB#) from a consensus of 36 002 sample trees after burn-in. The out-group (Bombus haemorrhoidalis) was chosen using the results of Cameron et al. (2007). The codes following the taxon names are the four-figure specimen identifiers (DB#), or longer IDs from BOLD, with country abbreviations: BUL, Bulgaria; CAN, Canada; CHN, China; FRA, France; IND, India; IRN, Iran; KAZ, Kazakhstan; KYR, Kyrgyzstan; MON, Mongolia; NEP, Nepal; NZL, New Zealand; POL, Poland; RUS, Russia; SWE, Sweden; SYR, Syria; THA, Thailand; TUR, Turkey; UKB, Britain; USA, United States of America. Values next to the nodes are Bayesian posterior probabilities for groups (groups with values of less than 0.9 are considered unreliable); values of less than 0.5 within species have been removed. Asterisks mark individuals from sites closest to the type localities of the primary types for each of the species names, which were regarded as informal proxies for types when applying names within this analysis. The scale bar represents 0.3 expected substitutions per nucleotide site.