Chemical Communication in Mammal Population: Urinary Olfactory Chemosignals in Lactating Female Root Voles (Microtus Oeconomus Pallas )

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	Chemical Communication in Mammal Population: Urinary Olfactory Chemosignals in Lactating Female Root Voles (Microtus Oeconomus Pallas )
	Yu HH(于鸿浩); Zhao XQ(赵新全); Yue PP(岳鹏鹏); Sun P(孙平)
	2010-03-24
发表期刊	POLISH JOURNAL OF ECOLOGY
ISSN	1505-2249
卷号	58 期号:1 页码:153-165
摘要	Urine is a major source of mammalian chemosignals. Among rodents, the sexual attractiveness and chemical constituents of urine vary with different reproductive stages. We confirmed the differing sexual attractiveness to males of the urine of lactating and non-lactating female root voles (Microtus oeconomus) and analyzed individual coding forms and lactation-specific putative pheromones, using gas chromatography-mass spectrometry (GC-MS). First, we documented the behavioral preference of male voles to urine odors of lactating and non-lactating females in a choice maze. The results showed that male voles engaged in more sniffing behavior and spent more time self-grooming in response to urinary odors of lactating females than to urinary odors of non-lactating females. We then used GC-MS to analyze the urine’s individual coding forms and potential chemosignals. We identified 34 volatile compounds, corresponding to 34 GC peaks, in the urine of female voles. The components identified in the urine samples included benzo- forms, alkanes, alkenes, acids, esters, pyrans, alcohols, and other volatile compounds. 12 basic volatiles were detected in all urine samples while others were specific to individuals. (E)5-octadecene and (N) hexadecanoic acid were specific to the lactating stage. A quantitative comparison of the relative abundances of the basic GC peaks showed no difference between the lactating and non-lactating stages, suggesting that individual identity is coded in digital form. We suggest that the urine of lactating females possesses stronger sexual attraction cues because of the presence of (E)5-octadecene and (N)hexadecanoic acid, which are putative lactating pheromones. However, the specific function of the pheromones should be assessed further by bioassay.
收录类别	SCI
文献类型	期刊论文
条目标识符	http://210.75.249.4/handle/363003/1980
专题	中国科学院西北高原生物研究所
推荐引用方式 GB/T 7714	Yu HH,Zhao XQ,Yue PP,et al. Chemical Communication in Mammal Population: Urinary Olfactory Chemosignals in Lactating Female Root Voles (Microtus Oeconomus Pallas )[J]. POLISH JOURNAL OF ECOLOGY,2010,58(1):153-165.
APA	于鸿浩,赵新全,岳鹏鹏,&孙平.(2010).Chemical Communication in Mammal Population: Urinary Olfactory Chemosignals in Lactating Female Root Voles (Microtus Oeconomus Pallas ).POLISH JOURNAL OF ECOLOGY,58(1),153-165.
MLA	于鸿浩,et al."Chemical Communication in Mammal Population: Urinary Olfactory Chemosignals in Lactating Female Root Voles (Microtus Oeconomus Pallas )".POLISH JOURNAL OF ECOLOGY 58.1(2010):153-165.