Direct being the direct result of differences prescribed by the Y-chromosome, and indirect being a characteristic influenced indirectly (e.g., hormonally) by the Y-chromosome.
Most Y-chromosome types are very rare, but the team discovered 11 types that were relatively common across the sample and studied their distributions and histories.
The consortium has the following objectives: web resources that communicate information relating to the non-recombinant region of the Y-chromosome including new variants and changes in the nomenclature.