This directory contains alignments of the D. melanogaster assembly
(dm1, Jan. 2003) to the D. yakuba assembly (droYak1, Apr. 2004).
Files included in this directory:
- axtChrom directory: contains the axt alignments generated by blastz,
in one file per chromosome. Blastz output was converted to lav format,
which was then converted to axt format.
- melanogaster.chain.zip: chained blastz alignments. The chain format is
described in http://genome.ucsc.edu/goldenPath/help/chain.html.
- melanogaster.net.zip: "net" file that describes rearrangements between
the species and the best D. melanogaster match to any part of the
D. yakuba genome. The net format is described in
- md5sum.txt: checksums of the files in this directory
The alignments in the axtNet directory are in "axt" format. For a
description, see http://genome.ucsc.edu/goldenPath/help/axt.html.
The alignments were produced by the blastz alignment program, which
is available from Webb Miller's lab at Penn State University
(http://www.bx.psu.edu/miller_lab/). The blastz scoring matrix used was:
A C G T
A 91 -114 -31 -123
C -114 100 -125 -31
G -31 -125 100 -114
T -123 -31 -114 91
with a gap open penalty of 400 and a gap extension penalty of 30.
Each chromosome was divided into 10,010,000 base chunks with 10,000 bases
of overlap. The .lav format blastz output, which does not include
the sequence, was converted to .axt with lavToAxt.
If you plan to download a large file or multiple files from this
directory, we recommend you use ftp rather than downloading the files
via our website. To do so, ftp to hgdownload.cse.ucsc.edu, then go to
the directory goldenPath/droYak1/vsDm1. To download multiple files,
use the "mget" command:
mget <filename1> <filename2> ...
- or -
mget -a (to download all the files in the directory)
All the files in this directory are freely available for public use.
Apache/2.2.15 (CentOS) Server at hgdownload-test.sdsc.edu Port 80