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On the Cover: In plant seeds, physiological and biochemical processes change from a germinative to a post-germinative mode following radicle emergence. Nonogaki et al. (pp. 1235-1245) demonstrate using tissue printing and northern hybridization that two endo--mannanase genes are expressed in tomato seeds in spatially and temporally distinct patterns. The cover illustration shows that expression of the LeMAN2 gene is localized exclusively to the micropylar endosperm before radicle emergence (upper inset photo), whereas the LeMAN1 gene is expressed in the rest of the endosperm after radicle emergence (lower inset photo). LeMAN2 mannanase is associated with endosperm weakening to allow radicle protrusion, whereas LeMAN1 mannanase mobilizes galactomannan reserves in the lateral endosperm cell walls after radicle emergence. (Photos by H. Nonogaki)