Pairwise-End Sequencing
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Pairwise-end sequencing reads both ends of each DNA fragment rather than one, supplying more overlap information for reassembling larger genomes.
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Knowing a fragment's start and end sequence constrains where it fits among its neighbors more tightly than knowing one end alone.
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Pairwise-end sequencing yields more information per fragment than single-end shotgun sequencing, at the cost of more sequencing reactions.