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首页> 外文期刊>Molecular phylogenetics and evolution >Distribution and phylogenetic relationships of Australian glow-worms Arachnocampa (Diptera, Keroplatidae)
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Distribution and phylogenetic relationships of Australian glow-worms Arachnocampa (Diptera, Keroplatidae)

机译：澳大利亚萤火虫蛛形纲（Diptera，Keroplatidae）的分布及其亲缘关系

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摘要

Glow-worms are bioluminescent fly larvae (Order Diptera, genus Arachnocampa) found only in Australia and New Zealand. Their core habitat is rainforest gullies and wet caves. Eight species are present in Australia; five of them have been recently described. The geographic distribution of species in Australia encompasses the montane regions of the eastern Australian coastline from the Wet Tropics region of northern Queensland to the cool temperate and montane rainforests of southern Australia and Tasmania. Phylogenetic trees based upon partial sequences of the mitochondrial genes cytochrome oxidase 11 and 16S mtDNA show that populations tend to be clustered into allopatric geographic groups showing overall concordance with the known species distributions. The deepest division is between the cool-adapted southern subgenus, Lucifera, and the more widespread subgenus, Campara. Lucifera comprises the sister groups, A. tasmaniensis, from Tasmania and the newly described species, A. buffaloensis, found in a high-altitude cave at Mt Buffalo in the Australian Alps in Victoria. The remaining Australian glow-worms in subgenus Campara are distributed in a swathe of geographic clusters that extend from the Wet Tropics in northern Queensland to the temperate forests of southern Victoria. Samples from caves and rainforests within any one geographic location tended to cluster together within a clade. We suggest that the morphological differences between hypogean (cave) and epigean (surface) glow-worm larvae are facultative adaptations to local microclimatic conditions rather than due to the presence of cryptic species in caves. Crown copyright (c) 2008 Published by Elsevier Inc. All rights reserved.
机译：萤火虫是仅在澳大利亚和新西兰发现的具有生物发光能力的蝇类幼虫（Diptera，蛛形纲属）。它们的核心栖息地是雨林的沟壑和潮湿的洞穴。澳大利亚有八种。最近已经描述了其中的五个。澳大利亚物种的地理分布涵盖了澳大利亚东部海岸线的山地地区，从昆士兰州北部的湿热带地区到澳大利亚南部和塔斯马尼亚岛的凉爽的温带和山地雨林。基于线粒体基因细胞色素氧化酶11和16S mtDNA的部分序列的系统发生树显示，种群倾向于聚类为异源地理群，显示出与已知物种分布总体一致。最深的划分是在适应凉爽的南部亚属Lucifera和更广泛的亚属Campara之间。路西法包括来自塔斯马尼亚州的塔斯曼尼塔斯菌（A. tasmaniensis）和在维多利亚州澳大利亚阿尔卑斯山布法罗山（Mt Buffalo）的高空洞穴中发现的新近描述的物种布法罗氏菌（A. buffaloensis）。坎帕拉亚种中其余的澳大利亚萤火虫分布在从昆士兰州北部的热带热带地区到维多利亚州南部的温带森林的一系列地理簇中。来自任何一个地理位置的洞穴和雨林的样本都倾向于聚集在一个进化枝中。我们认为，次生（洞穴）和表生（表层）萤火虫幼虫之间的形态差异是对局部微气候条件的适应性适应，而不是由于洞穴中存在隐蔽物种。官方版权（c）2008，由Elsevier Inc.发行。保留所有权利。

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