Baltic amber fossils reveal early evolution of sexual dimorphism in stalk-eyed flies (Diptera: Diopsidae)
Baltic amber fossils reveal early evolution of sexual dimorphism in stalk-eyed flies (Diptera: Diopsidae)
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DOI：
10.1016/j.ode.2004.02.005
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发表时间：
2004-01-01
影响因子：
1.6
通讯作者：
Kotrba, M
中科院分区：
文献类型：
--
作者：
Kotrba, M
一个分支分析的16种现存的琥珀化石柄眼蝇的家庭的地方化石daggerProsphyracephala sucini（勒夫）的姐妹组的所有其他Diopsinae，眼柄出现的亚科。这项研究是基于一个评分，包括5个老的和23个新发现的daggerP琥珀从波罗的海琥珀，并首次允许在这个物种的眼跨度和各种身体大小参数的形态测量分析。这些数据表明，眼柄的性别二型性已经存在于匕首前眼柄，这表明这一特征在Diopsinae早期进化。最近的观点认为，屈光不正眼柄的祖先条件是单态性的，相反，新的结果表明，性选择参与了眼柄的进化，从一开始的血统。(C)2004年Elsevier GmbH。All rights reserved.
A cladistic analysis of 16 species of extant and amber fossil stalk-eyed flies of the family Diopsidae places the fossil daggerProsphyracephala succini (Loew) as the sister group of all other Diopsinae, the subfamily in which eye stalks occur. The study is based on a scoring including five old and 23 new finds of daggerP succini from Baltic amber, and for the first time allows a morphometric analysis of eye span and various body size parameters in this species. The data indicate that sexual dimorphism of the eye stalks already existed in daggerProsphyracephala, suggesting that this feature evolved early in the Diopsinae. Contrary to recent views that the ancestral condition of diopsine eye stalks was monomorphic, the new results suggest that sexual selection was involved in the evolution of eye stalks from the very beginning of the lineage. (C) 2004 Elsevier GmbH. All rights reserved.