Arathi H S, Gadagkar Raghavendra
Centre for Ecological Sciences, Indian Institute of Science, Bangalore 560 012, India, , , , , , IN.
Behavioural Ecology Laboratory, Animal Behaviour Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur P.O., Bangalore 560 064, India, , , , , , IN.
Oecologia. 1998 Nov;117(1-2):295-299. doi: 10.1007/s004420050661.
In the primitively eusocial wasp, Ropalidia marginata, low levels of intra-colony genetic relatedness, lack of intra-colony kin discrimination and acceptance of young wasps into alien colonies, prompted us to investigate whether or not there exists a cost of such high genetic variability. Freshly eclosed wasps were paired either with their nestmates or with their non nestmates and their performance in nest building and brood care were compared. There was no demonstrable difference between nestmate and non nestmate pairs in terms of success in raising adult offspring, time required for nest initiation, brood developmental period and productivity. There was also no difference in the efficiency of cooperation and division of labour between the nestmate pairs and non nestmate pairs. These results reinforce the idea that the haplodiploidy hypothesis is insufficient to explain the prevalence of worker behaviour in R. marginata and emphasize the importance of factors other than genetic relatedness in the evolution of eusociality.
在原始真社会性黄蜂缘腹胡蜂（Ropalidia marginata）中，蜂群内遗传相关性较低、缺乏蜂群内亲缘识别以及对外来蜂群中幼蜂的接纳，促使我们去研究这种高遗传变异性是否存在代价。刚羽化的黄蜂要么与同巢伙伴配对，要么与非同巢伙伴配对，并比较它们在筑巢和育幼方面的表现。在养育成年后代的成功率、开始筑巢所需时间、幼虫发育期和生产力方面，同巢伙伴对和非同巢伙伴对之间没有明显差异。同巢伙伴对和非同巢伙伴对在合作效率和劳动分工方面也没有差异。这些结果强化了这样一种观点，即单倍二倍体假说不足以解释缘腹胡蜂中工蜂行为的普遍存在，并强调了亲缘关系以外的因素在真社会性进化中的重要性。
