Table 1.
Absolute Number of Genic Copies in Sample |
DNA Composition from qPCR |
|||||||
S. symbiotica dnaK | S. symbiotica gyrB | Buchnera dnaK | A. pisum hsp70 | A. pisum EF-1α | S. symbiotica Average (%) | Buchnera (%) | A. pisum Average (%) | |
Tucson genotype aphid DNA | 136,800 | NA | 4,655,000 | 91,780 | NA | 0.8 | 6 | 93 |
Filtered Tucson aphid DNA | 205,800 | NA | 2,485,000 | 1,338 | NA | 22 | 53 | 25 |
Selectively amplified Tucson DNA | 807,500 | NA | 500,500 | 445.6 | NA | 82 | 10 | 8 |
Single read 454 library | 788,500 | 7,499,000 | 474,000 | 5,91.9 | 613.9 | 95 | 2 | 2 |
Paired read 454 library | 618,100 | 7,847,000 | 449,200 | 329.7 | 806.7 | 96 | 2 | 2 |
Paired read Illumina library | 698,300 | 5,743,000 | 787,500 | 809.3 | 1,185 | 91 | 4 | 5 |
Note.—DNA composition was estimated using single gene copy numbers and an estimated genome size of 3 Mb for S. symbiotica. The Buchnera and Acyrthosiphon pisum genomes are 0.6 and 517 Mb in size, respectively (Shigenobu et al. 2000; International Aphid Genomics Consortium 2010).