Reproductive endocrinology of wild female woolly monkeys ( Lagothrix lagotricha poeppigii ) during puberty, ovarian cyclicity, and pregnancy
Reproductive endocrinology of wild female woolly monkeys ( Lagothrix lagotricha poeppigii ) during puberty, ovarian cyclicity, and pregnancy
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野生雌性绒毛猴（Lagothrix lagotricha poeppigii）在青春期、卵巢周期和妊娠期间的生殖内分泌学
DOI：
10.1002/ajp.23303
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发表时间：
2021
影响因子：
2.4
通讯作者：
Di Fiore, Anthony
中科院分区：
文献类型：
--
作者：
Abondano, Laura A.;Ziegler, Toni E.;Di Fiore, Anthony
行为观察可以提供关于雌性生殖状态的线索。然而，对青春期、排卵、受孕和妊娠等过程背后的内分泌动力学的研究，可能有助于增加我们对女性生殖生物学的理解。采用无创方法对野生毛猴雌性生殖内分泌进行了研究。我们从收集的无创粪便样本中提取卵巢类固醇激素，以检测在女性青春期、卵巢周期和怀孕期间黄体酮和雌激素代谢物（分别为妊娠二醇- 3‐葡糖苷酸和雌酮- 3‐葡糖苷酸）浓度的变化。在我们的研究中，两只亚成年雌性在消失和可能分散之前，卵巢激素浓度显着增加，这表明它们可能在从出生群体迁移之前到达青春期的开始。成年雌性卵巢周期平均为~22天（N= 21）。10只骑行的母鼠中，5只怀孕，4只生育后代，平均妊娠期为~214天，但估计妊娠期最短的母鼠（182天）所生的婴儿在分娩后1个月内消失。事实上，只有不到一半的循环雌猴受孕，其中只有五分之三的雌猴产下的后代存活过了第一个月，这表明雌性长毛猴的繁殖在能量上是昂贵的。长毛猴的卵巢周期长度和妊娠期与其近亲蜘蛛猴和毛猴相似，这表明在Atelini部落的雌性中，生殖生理可能高度保守。
Behavioral observations can provide clues about female reproductive status. However, the study of the endocrine dynamics that underlie processes such as puberty, ovulation, conception, and gestation, may help increase our understanding of female reproductive biology. We used noninvasive methods to study female reproductive endocrinology in wild woolly monkeys (genusLagothrix). We extracted ovarian steroid hormones from fecal samples collected non‐invasively to examine changes in the concentrations of progesterone and estrogen metabolites (pregnanediol‐3‐glucuronide and estrone‐3‐glucuronide, respectively) during periods of female puberty, ovarian cyclicity, and pregnancy. The two subadult females in our study showed significant increases in ovarian hormone concentrations before disappearing and presumably dispersing, suggesting that they might reach the onset of puberty before emigrating from their natal groups. Ovarian cycle length in adult females was, on average, ~22 days (N= 21). Of the 10 cycling females, five conceived and four gave birth to offspring, with an average gestation period of ~214 days, but the infant born to the female with the shortest estimated gestation period (182 days) disappeared within a month after parturition. The fact that less than half of all cycling females conceived, and that only three out of five of those females gave birth to offspring that survived past the first month, suggests that reproduction is energetically costly for female woolly monkeys. Ovarian cycle length and gestation period among woolly monkeys are similar to those in their closest relatives, spider monkeys and muriquis suggesting that reproductive physiology may be highly conserved among females within the Tribe Atelini.