phaeomelanin

These granules consist of the actual pigments: eumelanin and phaeomelanin.

正是这些小颗粒组成了二种色素: 真黑素和棕黑素.

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Agouti gene has many alleles and its expression can cause the production of phaeomelanin, otherwise cause the production of eumelanin.

Agouti基因的表达会引起棕黑素的产生，而Agouti不表达时则会引起真黑素的表达，从而调节色素合成的真黑素和棕黑素之间的转换。

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this gene acts in the hair follicles where the melanocyte can switch between eumelanin and phaeomelanin ( dark pigment and tan pigment).

此基因作用于毛囊中，也就是黑色素细胞内分化为真黑素还是棕黑素的地方。

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Eumelanin is responsible for the darker colours such as black, blue, chocolate brown and phaeomelanin causes the lighter yellow/ red colours such as tan, red, yellow.

真黑素决定了深色系，如黑、、克力色；棕黑素则影响浅色的红黄系，如茶色、色、色。

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this gene acts in the hair follicles where the melanocyte can switch between eumelanin and phaeomelanin (dark pigment and tan pigment).

此基因作用于毛囊中，也就是黑色素细胞内分化为真黑素还是棕黑素的地方。

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