Premature greying of mice lacking Bptf in the melanocyte lineage.

<p><b>A</b> Photographs of P10 mice of the indicated genotypes before onset of hair growth. <b>B-C.</b> Photographs of 14 day-old and 6 week-old mice of the indicated genotypes to illustrate the characteristics of the first coat and the premature greying phenotype. <b>D</b>. Photographs of 1 year-old mice of the indicated genotypes. <b>E</b>. Photographs of 6 week-old mice that had undergone depilation at 3 weeks of age. The depilated areas are outlined.