The Lycaenid Central Symmetry System: Color Pattern Analysis of the Pale Grass Blue Butterfly Zizeeria maha
The Lycaenid Central Symmetry System: Color Pattern Analysis of the Pale Grass Blue Butterfly Zizeeria maha
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DOI：
10.2108/zs140249
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发表时间：
2015-06-01
影响因子：
0.9
通讯作者：
Otaki, Joji M.
中科院分区：
文献类型：
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作者：
Iwata, Masaki;Taira, Wataru;Otaki, Joji M.
蛱蝶科的地面平面图已经被提出来解释不同的蝴蝶翅膀颜色模式。在该模型中，每个对称系统由一个核心单元和一对副核心单元组成。位置信息的感应模型解释了这种元素构型的发展。然而，在其他蝴蝶家庭的颜色模式的多样性与若虫的地面尚未彻底检查。在这里，我们研究了异常的颜色模式表型的灰蝶，Zizeeria maha，从诱变和可塑性研究，以及从实地调查。在几个突变体中，第三和第四点阵列协调定位更接近盘点相比，正常表型。在温度冲击型中，第三和第四阵列点从其正常位置向内或向外伸长。在野外捕获的自发突变体中，小黑点位于正常黑点附近。对这些异常表型的分析表明，属于第三和第四阵列的斑点在盘状斑点周围的位置和形状是同步变化的。因此，这些阵列构成灰蝶科蝴蝶的中心对称系统的副核心元件，并且盘状斑点包括核心元件。这些异常的表型可以解释的黑色诱导信号，从未来的盘状斑点传播，如诱导模型预测。这些结果表明，存在的远程发育信号，覆盖了一个大面积的翅膀不仅在nymphalid蝴蝶，但也在灰蝶。
The nymphalid groundplan has been proposed to explain diverse butterfly wing color patterns. In this model, each symmetry system is composed of a core element and a pair of paracore elements. The development of this elemental configuration has been explained by the induction model for positional information. However, the diversity of color patterns in other butterfly families in relation to the nymphalid groundplan has not been thoroughly examined. Here, we examined aberrant color pattern phenotypes of a lycaenid butterfly, Zizeeria maha, from mutagenesis and plasticity studies as well as from field surveys. In several mutants, the third and fourth spot arrays were coordinately positioned much closer to the discal spot in comparison to the normal phenotype. In temperature-shock types, the third and fourth array spots were elongated inwardly or outwardly from their normal positions. In field-caught spontaneous mutants, small black spots were located adjacent to normal black spots. Analysis of these aberrant phenotypes indicated that the spots belonging to the third and fourth arrays are synchronously changeable in position and shape around the discal spot. Thus, these arrays constitute paracore elements of the central symmetry system of the lycaenid butterflies, and the discal spot comprises the core element. These aberrant phenotypes can be explained by the black-inducing signals that propagate from the prospective discal spot, as predicted by the induction model. These results suggest the existence of long-range developmental signals that cover a large area of a wing not only in nymphalid butterflies, but also in lycaenid butterflies.