Is there a current summary available somewhere? The problem with using the modals in the colorized pages of Y-Haplogroup I2a Project is they are a dependent on the how the haplotypes therein were assigned that classification. I am particularly interested in I2a2b-M423-Isles-A1 and A2. In Nordtvedt's April 5, 2009 table of modal haplotypes the differences between A1 and A2 were: Isles A1 DYS389-2=30; DYS456=17 Isles A2 DYS389-2=29; DYS456=18 In the project A1 and A2 differ at 9 markers. Looking at the results I see all the A2 conform to the above but with A1 it looks like 4 of the haplotypes could have gone either way: Kits 193525, 153528 and 42511 all have DYS389-2=30; DYS456=18. Kit 179468 has DYS389-2=29; DYS456=17 Since there are only 5 haplotypes in A2 the resultant mode hasn't yet converged on the definition. This got me to wondering how the project decides if an Isles haplotype is A1 or A2 . There is reference to use of J.T. Cullen's Haplogroup I subclade predictor but the modal haplotypes built into that program do not include these, instead it has I1b-P37.2-IslesA and I1b-P37.2-Isles. Until an SNP is available is it worth distinguishing between A1 and A2? Thanks, Colin

-----Original Message----- From: Colin Ferguson I am particularly interested in I2a2b-M423-Isles-A1 and A2. In Nordtvedt's April 5, 2009 table of modal haplotypes the differences between A1 and A2 were: Isles A1 DYS389-2=30; DYS456=17 Isles A2 DYS389-2=29; DYS456=18 [[That's still it. Isles-A is very young. If other markers fairly consistently differed in a correlated way, they would be mentioned; but they don't seem to do so, including the new 68-111 markers. ]] My database on which this division is seen has 35 A1 and 16 A2 haplotypes. KN ]] Until an SNP is available is it worth distinguishing between A1 and A2? [[Sure; the 389ii and 456 bimodalities correlate highly with each other. We don't want to throw that information about history away. On the other hand one is not prevented from calling themselves just Isles-A, or for that matter just Isles. Searching for nodes in the tree which stand out demographically is a constantly moving thing as more data flows in. KN]]