A Comparative Study of the Sensory Structures Among Three Basal HexapodClades (Arthropoda: Collembola, Protura, Diplura) Using Scanning ElectronMicrographs
| Autor: | Richard L. Brown, Robert T. Allen, Amanda Lawrence |
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| Rok vydání: | 2014 |
| Předmět: | |
| Zdroj: | Microscopy and Microanalysis. 20:1280-1281 |
| ISSN: | 1435-8115 1431-9276 |
| DOI: | 10.1017/s1431927614008137 |
| Popis: | Collembola, Diplura, and Protura are basal orders of Hexapoda that are associated primarily with leaf litter and other decaying vegetative materials. These three clades historically have been considered monophyletic orders of insects, but some systematists recently have ranked them as classes independent of the class Insecta [1]. Collembola are unique in having a projecting furcula on the abdomen that is used for springing off a substrate. Diplura lack compound eyes and have abdominal styli. Protura lack compound eyes and antennae. The relationships among the three taxa have been called into question based primarily on DNA and physiological (sperm morphology) studies. A long term study of the external anatomy of these basal Hexapod orders using scanning electron microscopy has been initiated with the following objectives: 1) to determine if morphological characters not visible with light microscopy can be detected for use in identifying closely related taxa and 2) to identify “new” characters and/or character states useful in determining cladistic relationships. This poster presents some of the first results of the study concerning sensory structures in Collembola, Diplura, and Protura. |
| Databáze: | OpenAIRE |
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