Comparative Study on Phenotypic Differences in Eothenomys Miletus Under Food Restriction and Refeeding Between Xianggelila and Jianchuan from Hengduan Mountain Regions
Comparative Study on Phenotypic Differences in Eothenomys Miletus Under Food Restriction and Refeeding Between Xianggelila and Jianchuan from Hengduan Mountain Regions
复制标题
横断山区香格里拉与剑川限食与复饲下大鼠表型差异比较研究
DOI：
10.18805/ijar.b-1151
复制
发表时间：
2020-07-01
影响因子：
0.5
通讯作者：
Zhang, Hao
中科院分区：
文献类型：
--
作者：
Hou, Dong-min;Ren, Xiao-ying;Zhang, Hao
体重调节可能会出现区域差异，为了研究进食限制（FR）和再饲喂（Re）条件下上格里拉（XGLL）和建川（JC）大鼠的生理和行为变化，测定了大鼠的体重、摄食量、静息代谢率（RMR）、血清瘦素水平、下丘脑神经肽表达和活动行为。结果表明，面积和FR对鼠体质量、摄食量、RMR、活动行为、血清瘦素水平、下丘脑神经肽表达、肝脏和小肠质量均有显著影响。XGLL的体质量和血清瘦素水平低于JC，而XGLL的摄食量、活动行为、肝脏质量和RMR均高于JC。复饲后，两区肥鼠各项指标均可恢复到对照水平，表现出表型可塑性。综上所述，生理和行为特征说明了食物和不同区域对毛鼠表型可塑性的影响，这对深入了解横断山区毛鼠的生存和适应策略具有重要意义。
Body mass regulation may be appeared regional differences, in order to investigate the physiological and behavioral changes in Eothenomys miletus from Shanggelila (XGLL) and Jianchuan (JC) under food restriction (FR) and refeeding (Re), body mass, food intake, resting metabolic rate (RMR), serum leptin levels, hypothalamic neuropeptides expression and activity behavior were measured. The results showed that areas and FR had significant effects on body mass, food intake, RMR, activity behavior, serum leptin levels, hypothalamic neuropeptides expression, masses of liver and small intestine in E. miletus. Body mass and serum leptin levels in XGLL were lower than that of JC, food intake, activity behavior, liver mass and RMR in XGLL were higher relative to in JC. All the indexes of the two areas of E. miletus can be restored to control levels after refeeding, showing phenotypic plasticity. In conclusion, physiological and behavioral characteristics illustrated that the influences of food and different regions on phenotypic plasticity, which had important significance for in-depth understanding of the survival and adaptation strategies of E. miletus in Hengduan mountain regions.