The occurrence in the migratory locust, Locusta migratoria (Orthoptera: Acrididae), of a short-winged morph with no obvious fitness advantages over the long-winged morph
The occurrence in the migratory locust, Locusta migratoria (Orthoptera: Acrididae), of a short-winged morph with no obvious fitness advantages over the long-winged morph
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飞蝗（直翅目：蝗科）中出现的短翅变种，与长翅变种相比没有明显的适应性优势
DOI：
10.14411/eje.2013.078
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发表时间：
2013
期刊：
影响因子：
--
通讯作者：
S. Tanaka
中科院分区：
文献类型：
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作者：
Yudai Nishide;S. Tanaka
最近在东亚飞蝗中发现了一种短翅型，其发生受简单隐性孟德尔单位控制。昆虫的飞行能力与翅长和其他适合度相关的性状之间存在权衡。本研究利用两个具有翅型二型性的实验室品系，探讨了短翅型和长翅型蝗虫的进化意义。研究的生活史特征包括若虫发育、成虫体重、成虫存活率、首次繁殖年龄、产卵量和幼体体重。结果表明，在这些性状中没有一致的形态特异性差异。在考虑的几种可能性中，最有可能的是这种蝗虫的短翅形态是一种畸变，或者代表了该物种进化的初始阶段。
A short-winged morph, whose occurrence is controlled by a simple recessive Mendelian unit, was recently discovered in Locusta migratoria. The existence of trade-offs between flight capability associated with wing length and other fitness-related traits are often documented for insects. The present study investigated the evolutionary significance of the short-winged and long-winged morphs of this locust using two laboratory strains showing wing dimorphism. The life-history traits examined included nymphal development, adult body weight, percentage adult survival, age at first reproduction, egg production and hatchling body weight. The results indicate that there are no consistent morph-specific differences in any of these traits. Of the several possibilities considered, the most likely is that the short-winged morph of this locust is an aberration or represents an initial stage in the evolution of this species.