Genetic structure and reproductive strategy of the ant Cardiocondyla elegans: strictly monogynous nests invaded by unrelated sexuals
Genetic structure and reproductive strategy of the ant Cardiocondyla elegans: strictly monogynous nests invaded by unrelated sexuals
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蚂蚁 Cardiocondyla elegans 的遗传结构和繁殖策略：严格的单性巢穴被无关的性别入侵
DOI：
10.1111/j.1365-294x.2006.03156.x
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发表时间：
2006
影响因子：
4.9
通讯作者：
Jean
中科院分区：
文献类型：
--
作者：
Jean;A. Schrempf;Alain Lenoir;J. Heinze;Jean
秀丽隐翅虫是一种在河岸筑巢的地中海蚂蚁。它只饲养无翅的雄性，它们和平地生活在同一个巢中，而不是同一属的其他物种，它们既有和平的，有翅膀的，又有相互攻击的“ergatoid”雄性。利用微卫星分析技术，对3个不同产地的21个群体的遗传结构进行了研究，并对其中2个群体的有性世代进行了亲子鉴定。优美的我们证明了C.秀丽隐翅虫是严格的一夫一妻制，它的巢穴可以容纳异性。蚂蚁巢穴中的异性个体的存在首次被描述，可能会抵消兄弟姐妹之间交配造成的近亲繁殖。在实验室里，攻击性测试表明，工蚁只允许外来雄性进入它们的巢穴，而所有试图进入的有翼雌性都会受到攻击。然而，在外地的巢穴中的外国女性性的存在似乎是由于积极携带行为的工人在生殖期间。
Cardiocondyla elegans is a Mediterranean ant that nests on river banks. It rears only wingless (ergatoid) males that live peacefully in the same nest as opposed to other species of the same genus, which have both peaceful, winged and mutually aggressive ‘ergatoid’ males. Using microsatellite analysis, we investigated the genetic structure of 21 colonies from three different locations as well as the parentage of sexuals of two colonies of C. elegans. We show that C. elegans is strictly monogynous, and that its nests can contain foreign sexuals. The presence of alien sexuals inside ant nests is described for the first time and probably counteracts inbreeding resulting from matings between siblings. In the laboratory, aggression tests showed that workers only allow alien males to enter their nests, while all winged female sexuals attempting to enter were attacked. Nevertheless, the presence of alien female sexuals in nests in the field seems to result from active carrying behaviour by workers during the reproductive period.