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|Title:||A Study of Comparability in AFLP Profiling using a Simple Model System|
|Authors:||PARTIS Lina; BURNS M.; CHIBA Koichi; CORBISIER PHILIPPE; GANCBERG DAVID; HOLDEN M.; WANG J.; LIU Qing Yan; OKUNISHI Tomoya; YANG Inchul; VONSKY Maxim; EMSLIE K.|
|Citation:||ELECTROPHORESIS vol. 28 p. 3193-3200|
|Publisher:||WILEY-V C H VERLAG GMBH|
|Type:||Articles in Journals|
|Abstract:||A simple AFLP model, using the relatively small bacteriophage lambda genome, was developed to test the reproducibility of this technique in an international study, CCQM-P53. Using either non-selective or selective primers, 9 fragments or a subset of 1 to 3 fragments, respectively, were predicted using in silico software. Under optimized conditions, all predicted fragments were experimentally generated. The reproducibility of the AFLP model was tested by submitting both "unknown" DNA template which had been restricted and ligated with AFLP linkers (R/L mixture) and corresponding primer pairs to 9 laboratories participating in the CCQM-P53 study. Participants completed the final PCR step and then used either slab gel electrophoresis or CE to detect the AFLP fragments. The predicted fragments were identified by the majority of participants with size estimates consistently up to 4 base pair (bp) larger for slab gel electrophoresis that for CE. Shadow fragments which were 3 bp larger than predicted fragments were often observed by both study participants and organizers. The 9 AFLP fragments exhibited consistent differences in peak height and reproducibility in the CE profiles with fragments containing the highest guanine-cytosine (GC) of 50-56 % showing the greatest stability in the AFLP profiles.|
|JRC Institute:||Institute for Reference Materials and Measurements|
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