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What is Arm U in Drosophila melanogaster?

April 26, 2017arm drosophila melanogaster

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What is Arm U in Drosophila melanogaster?

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Arm U is an unordered assembly of unplaced sequence scaffolds. More information about Arm U can be found in the GenBank record (FA000001). Here is the comment section from this record: This record is an unordered assembly of unplaced (chrUn) sequence scaffolds that lie in heterochromatic regions of the genome, and does not reflect the structure of a biological molecule. Intervals between scaffolds are denoted by 100 N’s, and the order and orientation of the scaffolds with respect to one another is not known. Scaffolds joined in this record either cannot be localized to a particular chromosome or have conflicting localization data. It is provided for the FlyBase Consortium as an aid for sequence tracking. For further information about this sequence, please visit our Web site (http://www.dhgp.org). WARNING: The order and orientation of scaffolds in this record are unknown.