This Week in PNAS | GenomeWeb

This Week in PNAS

In the early, online edition of the Proceedings of the National Academy of Sciences, an international team describes unexpected findings from a mitochondrial DNA analysis of ancient Botocudo Indian skull samples from Brazil. When they assessed mtDNA sequences from 14 Botocudo samples — believed to stretch back to the 19th century —investigators determined that a dozen of the individuals belonged to a mitochondrial haplogroup associated with Amerindian populations.

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