The array length of satellite VI in genomes of three species by genomic fiber-FISH experiment. The relatively contiguous ‘beads-on-a-string’ hybridization signals (red) of satellite VI array were organized in a highly extended chromatin fiber of (a) Indian muntjac (approximately 85 μm), (b) Formosan muntjac (approximately 96 μm), and (c) Sambar deer (approximately 5.6 μm). The biotinylated satVI-1C5 probe was hybridized to the highly stretched chromatin fiber of the tested deer species and the FISH signal was detected by AF568 conjugated avidin (red fluorescence). The picture of each fiber FISH is composed of several overlapping images to show the total length of a satellite VI array. Scale bar = 10 μm.