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Cover Figure

ONLINE COVER This week's issue features a Research Article describing how Drosophila ovarian stem cells communicate with somatic cells to define the size of the stem cell niche. The image shows a germarium that was stained for the germ cell marker Vasa (green), the cytoskeletal protein α-spectrin (red), and nuclei (blue). [Image: Ming Liu, Tit Meng Lim, and Yu Cai; Temasek Life Sciences Laboratory and Department of Biological Sciences, National University of Singapore, Singapore]

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Science Signaling. ISSN 1937-9145 (online), 1945-0877 (print). Pre-2008: Science's STKE. ISSN 1525-8882