Phenotypic plasticity in the range-margin population of the lycaenid butterfly Zizeeria maha.
Phenotypic plasticity in the range-margin population of the lycaenid butterfly Zizeeria maha.
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DOI：
10.1186/1471-2148-10-252
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发表时间：
2010-08-19
影响因子：
3.4
通讯作者：
Kudo T
中科院分区：
文献类型：
--
作者：
Otaki JM;Hiyama A;Iwata M;Kudo T
气候变暖可能是导致蝴蝶北移的主要原因。在这里，我们记录了一个不寻常的领域的情况下，一个物种的灰蝶，Zizeeria maha，其中塑料表型的翅膀颜色图案的范围扩大的过程中，在人口水平上透露。此外，我们还研究了这种表型变化的爆发是否能够在实验室中重现。在本种最近扩大的北方分布区边缘，超过10%的Z.马哈种群在三年的时间里在腹翼上表现出特征性的颜色图案变化。我们通过人工冷激处理的正常南方群体的生理学上再现了相似的表型，并且，我们在正常群体的选择性育种10代后遗传上再现了相似的表型，证明冷激诱导的表型是可遗传的，并且在育种系中被部分遗传同化。类似的遗传过程也可能发生在以前和最近的范围边缘群体。相对较小的修改表示在第十代的育种线连同其他数据表明，在这个领域的情况下，创始人的作用。我们的研究结果支持的概念，即在最近的范围边缘人口的修改表型的爆发引发的塑性表型的启示，在温度胁迫和随后的遗传过程中，在以前的范围边缘人口，其次是迁移和时间建立的遗传不稳定的创始人在最近的范围边缘。这种情况下，不仅在该领域的表型可塑性的进化作用，但也在物种水平上的范围扩大的一个新的进化方面。
Many butterfly species have been experiencing the northward range expansion and physiological adaptation, probably due to climate warming. Here, we document an extraordinary field case of a species of lycaenid butterfly, Zizeeria maha, for which plastic phenotypes of wing color-patterns were revealed at the population level in the course of range expansion. Furthermore, we examined whether this outbreak of phenotypic changes was able to be reproduced in a laboratory. In the recently expanded northern range margins of this species, more than 10% of the Z. maha population exhibited characteristic color-pattern modifications on the ventral wings for three years. We physiologically reproduced similar phenotypes by an artificial cold-shock treatment of a normal southern population, and furthermore, we genetically reproduced a similar phenotype after selective breeding of a normal population for ten generations, demonstrating that the cold-shock-induced phenotype was heritable and partially assimilated genetically in the breeding line. Similar genetic process might have occurred in the previous and recent range-margin populations as well. Relatively minor modifications expressed in the tenth generation of the breeding line together with other data suggest a role of founder effect in this field case. Our results support the notion that the outbreak of the modified phenotypes in the recent range-margin population was primed by the revelation of plastic phenotypes in response to temperature stress and by the subsequent genetic process in the previous range-margin population, followed by migration and temporal establishment of genetically unstable founders in the recent range margins. This case presents not only an evolutionary role of phenotypic plasticity in the field but also a novel evolutionary aspect of range expansion at the species level.
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影响因子：
2.2
作者：
Mahdi, Shah H. A.;Gima, Shinichi;Otaki, Joji M.
通讯作者：
Otaki, Joji M.
影响因子：
56.9
作者：
Suzuki, Y;Nijhout, HF
通讯作者：
Nijhout, HF
DOI：
10.1098/rspb.2002.2134
发表时间：
2002-10-22
影响因子：
4.7
作者：
Hill, JK;Thomas, CD;Huntley, B
通讯作者：
Huntley, B
影响因子：
0.9
作者：
Otaki, JM;Ogasawara, T;Yamamoto, H
通讯作者：
Yamamoto, H
影响因子：
2.9
作者：
Nijhout, HF
通讯作者：
Nijhout, HF