Goldschmidt Beatriz, Cabello Pedro H, Kugelmeier Tatiana, Pereira Barbara B, Lopes Claudia A, Fasano Daniele M, Andrade Marcia C, Santos Joice S, Marinho Antonio M
Primatology Department, Fundação Oswaldo Cruz, Rio de Janeiro, Brazil.
J Am Assoc Lab Anim Sci. 2009 Sep;48(5):482-5.
Clitoromegaly in the neonatal period is an important morphologic sign that can be useful for sexual determination in aberrant cases. In rhesus monkeys, differentiation of the external genitalia occurs early during gestation (at 55 to 60 d) and is complete by approximately 80 d. Most of the critical steps in genital differentiation in primates occur prenatally. We sought to determine clitoral size in normal rhesus monkeys (Macaca mulatta) and possible effects of age and inheritance. Clitoral length was highly variable and had no relationship to fertility. Statistical evaluation revealed no association in the distribution of daughters with and without clitoris between mothers with and without clitoris. However, even when mated with several female monkeys, some male macaques produced primarily daughters without clitoris.
新生儿期阴蒂肥大是一种重要的形态学体征，在异常病例中可用于性别判定。在恒河猴中，外生殖器的分化在妊娠早期（55至60天）发生，并在大约80天时完成。灵长类动物生殖器分化的大多数关键步骤都发生在产前。我们试图确定正常恒河猴（猕猴）的阴蒂大小以及年龄和遗传的可能影响。阴蒂长度变化很大，与生育能力无关。统计评估显示，有阴蒂和无阴蒂的母亲所生女儿的分布没有关联。然而，即使与几只雌猴交配，一些雄猕猴主要生出无阴蒂的女儿。
