Clonal reproduction and genetic caste differences in a queen-polymorphic ant, Vollenhovia emeryi
Clonal reproduction and genetic caste differences in a queen-polymorphic ant, Vollenhovia emeryi
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DOI：
10.1098/rsbl.2006.0491
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发表时间：
2006-09-22
期刊：
影响因子：
3.3
通讯作者：
Heinze, Juergn
中科院分区：
文献类型：
--
作者：
Ohkawara, Kyohsuke;Nakayama, Megumi;Heinze, Juergn
大多数社会性水虻的特征是简单的单倍体性别决定和基于环境的种姓分化。这似乎是显着不同的皇后多态蚂蚁Vollenhovia emeryi。在日本中部的一个种群中，几乎所有的长翅和短翅蚁后在三个微卫星位点上都是纯合的，而工蚁大多是杂合的，这表明要么是一个复杂的遗传种姓决定系统，要么更可能是通过孤雌生殖从未受精的卵中产生雌性，而从受精卵中产生工蚁。此外，男性基因型不兼容的皇后，只有父亲的等位基因在不育，杂合工人，可能是因为男性产生的受精卵后，排除母亲的核DNA最近报道的Wasmannia auropunctata。Vollenhovia属可能提供一个有趣的模式系统，以跟踪不寻常的种姓和性别决定系统的进化。
Most social Hymenoptera are characterized by simple haploid sex determination and environment-based caste differentiation. This appears to be strikingly different in the queen-polymorphic ant Vollenhovia emeryi. Almost all long- and short-winged queens from a population in Central Japan were homozygous at three microsatellite loci, whereas workers were mostly heterozygous, suggesting either a complex system of genetic caste determination or, more likely, the production of female sexuals from unfertilized eggs by thelytokous parthenogenesis and of workers from fertilized eggs. Furthermore, male genotypes were not compatible with those of the queens and had exclusively the paternal allele found in the sterile, heterozygous workers, probably because males are produced from fertilized eggs after the exclusion of maternal nuclear DNA as recently reported for Wasmannia auropunctata. The genus Vollenhovia might provide an interesting model system to trace the evolution of unusual caste and sex determination systems.