母亲的社会环境塑造了树黄丸激素的分配和胚胎神经基因表达在树
M Leigh Bailey1, Cameron Nixon1, Douglas B Rusch2
1School of Biological Sciences, University of Oklahoma, Norman, OK 73019, USA.
Hormones and behavior
|May 17, 2024
概括
母亲的社会环境影响后代的发展. 增加女性的侵略性导致较高的黄体 (T),改变了对激素和免疫功能的胚胎基因表达,同时降低了神经发育基因的调节.
科学领域:
- * 行为生态学
- * 发育生物学 发育生物学
- * 神经内分泌学 * 神经内分泌学
背景情况:
- *母亲的激素,如丸激素 (T),影响后代的发育和特征.
- *将母亲的社会环境与后代的基因表达联系在一起的分子机制尚未完全理解.
- *了解这些机制对于解释表型可塑性至关重要.
研究的目的:
- * 调查母性社会环境对树黄T度的影响.
- * 检查暴露于不同母亲社会条件下的胚胎中全基因组神经基因表达模式.
- * 为了将黄体T水平和母亲的侵略性与胚胎基因表达相关联.
主要方法:
- *研究了树 (Tachycineta bicolor) 在不同的密度下繁殖.
- *测量了雌性侵略性相互作用和卵子中的蛋黄T度.
- * 通过差异基因表达和加权基因共同表达网络分析分析了胚胎中的全脑基因表达.
主要成果:
- *在高密度地区的雌性表现出更高的侵略性和更高的黄T度.
- *来自高密度部位的胚胎在荷尔蒙,循环和免疫路径中表现出高调的基因,与T黄和攻击性相关.
- *与神经发育相关的基因在高密度部位的胚胎中被降低调节.
结论:
- * 母亲的社会环境,特别是侵略性,通过T黄影响胚胎神经基因组过程.
- *这些基因表达的变化有助于后代的表型可塑性.
- * 突出了早期发育条件对后代特征的影响.
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