|
|||||
|
|
| 根田鼠母体捕食应激对其雄性子代性行为去雄性化的效应 | |
| 引用本文： | 边疆晖,吴雁,刘季科. 根田鼠母体捕食应激对其雄性子代性行为去雄性化的效应[J]. 动物学报, 2004, 50(4): 675-680 |
| 作者姓名： | 边疆晖 吴雁 刘季科 |
| 作者单位： | 1. 浙江大学生命科学学院,杭州,310012;中国科学院西北高原生物研究所,西宁,810001 2. 杭州师范学院,杭州,310012 3. 浙江大学生命科学学院,杭州,310012 |
| 基金项目： | 国家自然科学基金 (No .3 0 3 70 2 49)，中国科学院院长基金资助项目~~ |
| 摘 要： | 母体应激效应是母体在妊娠期经历的环境变化对子代发育、繁殖及存活等特征的影响(MousseauandFox ,1 998;Bernado ,1 996 )。该效应不仅能使子代生活史特征产生迟滞性效应(Beckermanetal.,2 0 0 2 ) ,而且在密度制约过程中,导致对种群的迟滞性密度制约(Delayeddensitydependenc |
| 关 键 词： | 根田鼠 母体应激 性行为 去雄性化 雄性子代 |
Effects of maternal stress induced by predation during pregnancy on demasculinization of sexual behavior for male offspring in root voles Microtus oeconomus |
|
| BIAN Jiang Hui ,,WU Yan ,LIU Ji Ke College of Life Science,Zhejiang University,Hangzhou ,China Northwest Plateau Institute of Biology,The Chinese Academy of Sciences,Xining ,China Hangzhou Teachers Colloge,Hangzhou ,China. Effects of maternal stress induced by predation during pregnancy on demasculinization of sexual behavior for male offspring in root voles Microtus oeconomus[J]. Acta Zoologica Sinica, 2004, 50(4): 675-680 | |
| Authors: | BIAN Jiang Hui WU Yan LIU Ji Ke College of Life Science Zhejiang University Hangzhou China Northwest Plateau Institute of Biology The Chinese Academy of Sciences Xining China Hangzhou Teachers Colloge Hangzhou China |
| Affiliation: | BIAN Jiang Hui 1,2,WU Yan 3,LIU Ji Ke 1** 1 College of Life Science,Zhejiang University,Hangzhou 310012,China 2 Northwest Plateau Institute of Biology,The Chinese Academy of Sciences,Xining 810001,China 3 Hangzhou Teachers Colloge,Hangzhou 310012,China |
| Abstract: | This study investigated the effect of predation induced stress during pregnancy on demasculinization of sexual behavior for male offspring in root voles Microtus oeconomus . Male offspring were randomly assigned to four groups. Two groups were stressed by predation and restricted food, respectively, in the prenatal period. One group was stressed by predation after weaning. The remaining was the control group. During adulthood, male offspring were tested for sexual behavior and anogential distance. The results showed that prenatal stress with predation induced a major impairment of male sexual behavior and anogential distance. The group with restricted food displayed a minor impairment in male sexual behavior and anogential distance. The weaning stress showed no marked differences in male sexual behavior and anogential distance when compared to controls. These results demonstrated that predation induced prenatal stress, together with the stress with restricted food in the mothers induced the behavioral and the morphological demasculinization of their male offspring. The effect of demasculinization occurred only during the critical phase that caused sexual differentiation of the male embryonic hypothalamus. |
| Keywords: | Root vole Microtus oeconomus Maternal stress Sexual behavior Demasculinization Male offspring |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |