Zebrafish Composite (IMAGE)
Caption
Yellow coloring highlights the location of fat cells in this pair of zebrafish. In the adult fish at the top, which is about 10 mm, fat is deposited throughout the body, most notably under the skin on the flanks. At the juvenile stage (below), the 4.5 mm fish only has adipose in and around the belly. Duke researchers have discovered that a gene called Plexin D1 controls both where fat is stored and how fat cells are shaped.
Credit
James E. Minchin
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