(2009) “What's in a name? Y chromosomes, surnames and the genetic genealogy revolution”, Trends in Genetics25 (8), p. 351–60. doi:10.1016/j.tig.2009.06.003. “The International Society of Genetic Genealogy (www.isogg.org) advocates the use of genetics as a tool for genealogical research, and provides a support network for genetic genealogists. It hosts the ISOGG Y-haplogroup tree, which has the virtue of being regularly updated.”.