气候变化领域集成服务门户(CCPortal): The Production of Sex Pheromone in Lady Beetles Is Conditioned by Presence of Aphids and Not by Mating Status

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DOI	10.1007/s10886-020-01197-z
	The Production of Sex Pheromone in Lady Beetles Is Conditioned by Presence of Aphids and Not by Mating Status
	Verheggen F.; Cherif A.; Martin C.
发表日期	2020
ISSN	980331
起始页码	590
结束页码	596
卷号	46 期号:7
英文摘要	Female Harmonia axyridis (Coleoptera: Coccinellidae) produce a sex pheromone to attract males. In the present study, we tested two hypotheses: (i) production of sex pheromone in H. axyridis is conditioned by perception of prey in their vicinity, and (ii) virgin females invest in the production of the sex pheromone, while mated females reduce their pheromone emissions. To test the first hypothesis, newly hatched larvae were divided into three groups: those fed with Ephestia kuehniella eggs, those fed with pea aphids, and those exposed to aphid volatile cues but fed with Ephestia eggs. All females produced a pheromone blend of five-components in similar relative proportions, but with contrasting absolute quantities: Females fed with Ephestia eggs produced lower amounts of pheromone (0.5 ± 0.4 ng.female−1), compared to females fed with aphids (44.2 ± 24.4 ng.female−1). The females of the third group produced intermediate concentrations of pheromone (6.0 ± 3.2 ng.female−1). To test the second hypothesis, two groups of lady beetles were made: one group of females was placed in the presence of males, while females of the other group were not. Mated and virgin females produced statistically similar amounts of pheromone (144.1 ± 49.7 ng and 43.7 ± 24.1 ng.female−1, respectively). These results suggest that H. axyridis females initiate pheromone production upon exposure to volatile cues released by their aphids prey. Females continue to release sex pheromone after mating, probably to increase the chance of multiple mating which is known to improve egg fertility. © 2020, Springer Science+Business Media, LLC, part of Springer Nature.
英文关键词	Chemical signaling; Coccinellidae; Effect of diet; Harmonia axyridis; Pea aphids; Semiochemical; Sexual selection
scopus关键词	aphid; beetle; chemical cue; egg development; fertility; hatching; mate attraction; multiple mating; perception; sex pheromone; volatile element; Acyrthosiphon pisum; Anagasta kuehniella; Aphididae; Coccinellidae; Coleoptera; Harmonia axyridis; sex pheromone; animal; aphid; beetle; chemistry; metabolism; physiology; predation; sexual behavior; Animals; Aphids; Coleoptera; Predatory Behavior; Sex Attractants; Sexual Behavior, Animal
来源期刊	Journal of Chemical Ecology
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/176883
作者单位	Gembloux Agro-Bio Tech, TERRA, Université de Liège, Avenue de la Faculté d’agronomie 2B, Gembloux, 5030, Belgium
推荐引用方式 GB/T 7714	Verheggen F.,Cherif A.,Martin C.. The Production of Sex Pheromone in Lady Beetles Is Conditioned by Presence of Aphids and Not by Mating Status[J],2020,46(7).
APA	Verheggen F.,Cherif A.,&Martin C..(2020).The Production of Sex Pheromone in Lady Beetles Is Conditioned by Presence of Aphids and Not by Mating Status.Journal of Chemical Ecology,46(7).
MLA	Verheggen F.,et al."The Production of Sex Pheromone in Lady Beetles Is Conditioned by Presence of Aphids and Not by Mating Status".Journal of Chemical Ecology 46.7(2020).