BIOL 522 Lecture Notes - Lecture 7: Shotgun Sequencing, Paleogenetics, Dna Glycosylase
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Fig 1 = visualise genetic barriers to gene flow, sample is not equally distributed. = red is less gene flow, it correlates with environmental elements (altitude, temp, precipitation) > snps tell you about more distant history, finestructure is more recent. Snps show older gene flow whereas finestructure is more recent, elevation is more consistent whereas temperatures have varied more. Papuans have signature from early africans compared to other groups - unique. Splits within africa are very very old, split from africa is within the clade of modern humans in africa (not an outgroup to modern africans) Stepwise model because it"s made using a model looking at discrete time periods. Papuans don"t have s much african ancestry but they share more african ancestry than ___ Migration into png, very early migration, fossil doest support this 100-120kya. Not enough signal to just see things directly - Hts (high throughput sequencing) is a sequencing method that generates data from short fragments.