在中对幼年激素的性别和种姓特异性发育反应,具有母性种姓确定性的
Jeanne Brülhart1, Anja Süß1, Jan Oettler1
1Zoologie/Evolutionsbiologie, Universität Regensburg, 93053 Regensburg, Germany.
The Journal of experimental biology
|May 23, 2024
概括
青春期激素操纵并没有改变Cardiocondyla obscurior中的雌性种姓发展. 然而,激素治疗导致男性的体型显著更大,这表明母亲对女性发育的强有力的控制.
科学领域:
- 昆虫学 昆虫学是一门学科.
- 发展生物学 发展生物学
- 昆虫内分泌学 昆虫内分泌学
背景情况:
- 青春激素 (JH) 是社会昆虫中多性的关键调节者.
- 在Cardiocondyla obscurior中,在胚胎发生的早期,母性因素决定了雌性种姓 (女王或工人).
- 这种物种表现出明显的男性形态:有翅膀和没有翅膀.
研究的目的:
- 调查青春激素 (JH) III和梅托局部治疗对C. obscurior.雄性,女王和工人的胚胎和幼虫发育的影响.
- 为了确定激素操纵是否会影响这种物种的种姓决定和身体尺寸.
主要方法:
- 在C. obscurior胚胎和幼虫上局部应用青春激素III及其类似物美托烯.
- 监测种姓比例,体型和JH响应基因克鲁佩尔同类1 (Kr-h1) 的表达.
- 在激素治疗后对男性形态发展的分析.
主要成果:
- 激素治疗对女性的种姓决定或身体大小没有影响,尽管Kr-h1基因的表达增加.
- 接受青春期激素类似物治疗的男性出现显著更大.
- 男性的形态命运 (有翅膀和没有翅膀) 没有受到激素操纵的影响.
结论:
- 在C. obscurior中,母亲对种姓决定的控制导致雌性高度道化和不可逆转的发育途径.
- 虽然青春期荷尔蒙会影响男性的生长,但它并不能在女性中取代已有的母性种姓确定系统.
- 这项研究强调了社会昆虫早期发育编程的稳定性.
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