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A Gap Map graphically represents gaps between adjacent orthologous anchors connecting
genomes of two species such as human and rhesus. Anchors are derived by comparing
genomic sequences, by linkage mapping, or by both. Two anchors are adjacent in
one species if they reside on the same chromosome and if no other anchor occurs between
them on that chromosome.
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Adjacent anchors are classified into one of three categories:
- Adjacent in both species
- Adjacent in one species (e.g. human) only
- Adjacent in the other species (e.g. rhesus) only
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Distances between two adjacent anchors in the genome of one species
are plotted along the x-axis and the distances in the genome of the other species
are plotted along the
y-axis. If two anchors are on different chromosomes in the species,
they are at an "infinite" distance.
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Collinear pairs of anchors fall on the y=x axis, more closely spaced pairs fall
closer to the (0,0) point. Points that fall away from the y=x axis indicate interesting gaps.
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The Rhesus-Human Comparative Linkage Maps were produced by Dr. Jeff Roger's group at the Southwest National Primate Reasearch Center.
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Physical mappings of the markers on human are available in the "MML SNPRC:Marker" track of the Genboree browser
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Browse Rhesus-Human Comparative Markers by Human Chromosome:
- Select the human chromosome you want to browse in Genboree
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