Beer Katharina, Helfrich-Förster Charlotte
Department of Neurobiology and Genetics, Biocenter, University of Würzburg, Würzburg, Germany.
Front Cell Dev Biol. 2020 Nov 12;8:581323. doi: 10.3389/fcell.2020.581323. eCollection 2020.
Social life style can influence many aspects of an animal's daily life, but it has not yet been clarified, whether development of the circadian clock in social and solitary living bees differs. In a comparative study, with the social honey bee, , and the solitary mason bee, , we now found indications for a differentially timed clock development in social and solitary bees. Newly emerged solitary bees showed rhythmic locomotion right away and the number of neurons in the brain that produce the clock component pigment-dispersing factor (PDF) did not change during aging of the adult solitary bee. Honey bees on the other hand, showed no circadian locomotion directly after emergence and the neuronal clock network continued to grow after emergence. Social bees appear to emerge at an early developmental stage at which the circadian clock is still immature, but bees are already able to fulfill in-hive tasks.
社会生活方式会影响动物日常生活的许多方面，但社会型和独居型蜜蜂的生物钟发育是否存在差异，目前尚不清楚。在一项对比研究中，我们以社会型蜜蜂——意大利蜜蜂和独居型蜜蜂——壁蜂为研究对象，现在发现了社会型和独居型蜜蜂生物钟发育时间不同的迹象。新羽化的独居型蜜蜂马上就表现出有节律的运动，并且在成年独居型蜜蜂衰老过程中，大脑中产生生物钟成分色素分散因子（PDF）的神经元数量没有变化。另一方面，意大利蜜蜂刚羽化后没有昼夜节律运动，并且神经元生物钟网络在羽化后仍继续发育。社会型蜜蜂似乎在发育早期就羽化了，此时生物钟仍未成熟，但蜜蜂已经能够完成蜂巢内的任务。
