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### 光周期对环青春期雄性根田鼠繁殖发育的作用与光周期信息的母体传递模式

1. 中国科学院西北高原生物研究所，西宁
• 出版日期:2006-06-01 发布日期:2008-07-07

### EFFECTS OF PHOTOPERIODS ON THE PERIPUBERTAL REPRODUCTIVE DEVELOPMENT AND THE PATTERNS OF MATERIAL TRANSFER OF PHOTEPERIODIC INFORMATION IN ROOT VOLES (MICROTUS OECONOMUS

LIU Likuan,LIU like,SU Jianping

• Online:2006-06-01 Published:2008-07-07

Abstract: The effects of photoperiodic information on peripubertal reproductive development of root voles (Microtus oeconomus), are determined by using a factorial experiment which is designed from long and short day light levels in the gestational, lactational and postweaning periods and the juvenile responsive patterns to the maternally derived photoperiodic information is studied. The specific hypotheses tested are that photoperiodic information can stimulate and regulate the reproductive development and growth of root voles; and that the transfer of photoperiodic information exists between the female parents and their offsprings. The results from eight experimental treatments general supported the above mentioned hypotheses, and indicated that the transfer of photoperiodic information indeed exists between the female parents and their offsprings. The reproductive development of male offspring is influenced not only by the maternally derived photoperiodic information but also by the environmental photoperiod during postweaning period; the reproductive development of female offspring is particularly influenced by the transfer of photoperiodic information of gestational and/or lactational period before weaning. That is, the maternally derived photoperiodic information is the main information which affects the reproductive development of the female offspring.