Fig. 1. (A) Developmental stages of mouse SMGs used for array analysis. eb,
epithelial bud; m, mesenchyme; tb, terminal bud; d, duct; bv, blood vessel; a,
acini; sd, striated duct; gct, granular convoluted tubule. (B) A portion of
the Atlas 1.2 cDNA arrays shows five examples of developmentally regulated
genes during gland formation.