Euchromatic genome Size
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| Value | 1.2e+8 Base pairs |
|---|---|
| Organism | Fruit fly Drosophila melanogaster |
| Reference | Adams MD et al, The genome sequence of Drosophila melanogaster. Science. 2000 Mar 24 287(5461):2185-95.PubMed ID10731132 |
| Method | Genome assembly relied on the use of several types of data, including clone-based sequence, whole-genome sequence from libraries with three insert sizes (2 kb, 10 kb, and 130 kb), and a Bacterial Artificial Chromosome (BAC)-based sequence-tagged site (STS) content map. The combination of these resources resulted in a set of ordered contigs spanning nearly all of the euchromatic region on each chromosome arm (p. 2194). |
| Comments | The Drosophila genome is ~180 Mb in size, a third of which is centric heterochromatin. The 120 Mb of euchromatin is on two large autosomes and the X chromosome. The small fourth chromosome contains only ~1 Mb of euchromatin. The heterochromatin consists mainly of short, simple sequence elements repeated for many megabases, occasionally interrupted by inserted transposable elements, and tandem arrays of ribosomal RNA genes (p. 2185). |
| Entered by | Ron Milo - Admin |
| ID | 100199 |