Comprehensive analysis of male-free reproduction in Monomorium triviale (Formicidae: Myrmicinae).
Comprehensive analysis of male-free reproduction in Monomorium triviale (Formicidae: Myrmicinae).
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DOI：
10.1371/journal.pone.0246710
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发表时间：
2021
期刊：
影响因子：
3.7
通讯作者：
Dobata S
中科院分区：
文献类型：
--
作者：
Idogawa N;Sasaki T;Tsuji K;Dobata S
我们报告了蚂蚁 Monomorium triviale 中强制产雌孤雌生殖的全面证据。该物种的特点是具有明显的蚁后-工蚁二态性和严格的生殖劳动分工：蚁后在不交配的情况下既产生工蚁又产生新蚁后，而工蚁则完全不育。我们从日本 14 个地点和 3 个实验室饲养种群中收集了 333 个该物种的巢。所有被解剖的野生蜂王的受精囊中都没有精子。实验室观察证实，处女蜂王无需交配即可产下工蜂。此外，微卫星基因分型显示母亲及其女儿之间具有相同的杂合基因型，表明有性生殖的可能性极低。微生物分析没有检测到已知能诱导膜翅目产雌孤雌生殖的细菌属。最后，从日本各地取样的个体线粒体 DNA 部分序列缺乏变异，表明最近的快速传播或选择性清除。通过与经过充分研究的有性同类（包括法老蚁 M. pharaonis）进行比较分析，M. triviale 将成为一种有前途的类似超有机体适应的模型系统。
We report comprehensive evidence for obligatory thelytokous parthenogenesis in an ant Monomorium triviale. This species is characterized by distinct queen–worker dimorphism with strict reproductive division of labor: queens produce both workers and new queens without mating, whereas workers are completely sterile. We collected 333 nests of this species from 14 localities and three laboratory-reared populations in Japan. All wild queens dissected had no sperm in their spermathecae. Laboratory observation confirmed that virgin queens produced workers without mating. Furthermore, microsatellite genotyping showed identical heterozygous genotypes between mothers and their respective daughters, suggesting an extremely low probability of sexual reproduction. Microbial analysis detected no bacterial genera that are known to induce thelytokous parthenogenesis in Hymenoptera. Finally, the lack of variation in partial sequences of mitochondrial DNA among individuals sampled from across Japan suggests recent rapid spread or selective sweep. M. triviale would be a promising model system of superorganism-like adaptation through comparative analysis with well-studied sexual congeners, including the pharaoh ant M. pharaonis.
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影响因子：
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DOI：
10.1098/rspb.2009.0313
发表时间：
2009-07-22
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通讯作者：
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