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首页> 外文期刊>Zoological Science >Thelytokous Parthenogenesis in the Ant Myrmecina nipponica (Hymenoptera: Formicidae)
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Thelytokous Parthenogenesis in the Ant Myrmecina nipponica (Hymenoptera: Formicidae)

机译：蚂蚁Myrmecina nipponica（膜翅目：蚁科）的Thelytokous单性生殖

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Myrmecina nipponica Wheeler is a terrestrial ant nesting chiefly in the soil in forest. It is a specialized predator of oribatid mites, but also scavenges on a broad spectrum of other arthropods. In the studied population at Cape Manazuru in central Japan, M. nipponica colonies are typically monogynous, and previous dissections of queens suggested that these individuals were not inseminated, thus suggesting these ants can reproduce via thelytokous parthenogenesis. To test for thelytokous parthenogenesis in M. nipponica the spermathecae of queens (dealate gynes) from worker-containing colonies were histologically examined in detail. All specimens examined (n = 5) had no spermatozoa in the spermatheca. In addition, a total of four colony-founding queens were reared in isolation in the laboratory to test whether non-inseminated females were capable of egg laying and to test whether female offspring emerged from this brood. In all of four culture replicates, only new workers were produced from the eggs those queens had laid and male offspring was absent. After the breeding experiment, the queens' spermathecae were histologically examined and no sperm were detected in their spermathecae. These results reveal that M. nipponica queens of the Manazuru population are capable of producing female offspring thelytokously. Sexual reproduction by typical gynes and also by intermorphs has been known from other local populations of M. nipponica; therefore, this species shows geographical polymorphism in sexuality
机译：Myrmecina nipponica Wheeler是一种主要在森林土壤中筑巢的陆生蚂蚁。它是螨虫螨的专门捕食者，但也清除了其他种类的节肢动物。在日本中部马那祖海角的研究种群中，棉铃虫种群通常是单性的，而先前对女王的解剖表明，这些个体没有被授精，因此暗示这些蚂蚁可以通过the科单性生殖繁殖。为了测试棉铃虫中的lytokous孤雌生殖，从组织学上详细检查了来自工人聚居地的皇后（精体）精子。检查的所有标本（n = 5）在精囊中都没有精子。此外，在实验室中一共饲养了四个建立殖民地的皇后，以检验未受精的雌性是否能够产卵，并检验雌性后代是否从该巢中出来。在所有的四个文化复制品中，只有女王产下的卵产生了新的工人，并且没有雄性后代。繁殖实验后，对女王的精囊进行了组织学检查，没有发现精子中有精子。这些结果表明，Manazuru种群的N. nipponica皇后有能力生产雌性后代。从其他地方分枝M（M。nipponica）的种群中可以知道典型的双性生殖和异形生殖的有性繁殖。因此，该物种在性方面表现出地理多态性

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