學術資源整合系統-相關推薦
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| 作者 | Jeng, M.-L.;Y. Suzuki;C.-Y. Chang;T.-R. Chen |
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| 出版日期 | 2021 |
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| 著作名稱 | Do holometabolous insects molt spontaneously after adulthood? An exceptional case report in fireflies (Coleoptera: Lampyridae), with discussion of its inferred endocrine regulation especially in relation to neoteny
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| 刊名 | Arthropod Structure & Development |
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| 卷 | 61 |
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| 期 | 101013 |
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| 頁數 | 1-9 |
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| 被收錄索引 | SCI |
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| 主題 | 動物 |
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| 關鍵字 | neoteny, Lamprigera, post-imago molt, endocrine regulation, reproductive stress |
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| 摘要 | It has been a traditionally held view that winged insects stop molting after they reach adulthood. We observed a fascinating phenomenon of a post-imago molt occurring in the neotenic females of a firefly species in Taiwan over the last two years. By rearing Lamprigera minor larvae to adults, four out of the five unmated females studied were found undergoing an extra molt 8-18 days after adult eclosion. They
were reproductively mature when the post-imago molt occurred, as evidenced by the eggs inside their bodies. The four females died without oviposition whereas the only normal female laid eggs. A comparison of exuviae of different stages confirmed the existence of post-imago ecdysis. The adult skin differed from the pupal one mainly in the mouthparts and leg structures. No mix of pupal and adult traits was seen in the adult skin. The females retained the same morphology after the extra molt. A close
examination of the post-imago molting females revealed that their oviduct openings were all blocked by larval or pupal skin and thus unable to lay eggs. The reproductive stress may invoke an endocrine disorder and lead to an extra molt. We propose that L. minor females retain their prothoracic glands even as adults, allowing them to molt as adults under certain environmental or physiological conditions. Thus, neoteny of L. minor is reflected in both the external morphology as well as the internal physiology. The possible developmental changes associated with the evolution of neoteny are discussed. |
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| 全文 |  |
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| 系統號 | NO000005863 |
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