Phylogenetics of scutigeromorph centipedes (Myriapoda: Chilopoda) with implications for species delimitation and historical biogeography of the Australian and New Caledonian faunas
Phylogenetics of scutigeromorph centipedes (Myriapoda: Chilopoda) with implications for species delimitation and historical biogeography of the Australian and New Caledonian faunas
复制标题
DOI：
10.1111/j.1096-0031.2009.00253.x
复制
发表时间：
2009-08-01
期刊：
影响因子：
3.6
通讯作者：
Giribet, Gonzalo
中科院分区：
文献类型：
--
作者：
Edgecombe, Gregory D.;Giribet, Gonzalo
蜈蚣目的系统发育问题近年来受到了分子和形态资料的综合分析的关注。利用更密集的属类取样、一个额外的标记（12S rRNA）和选择物种的多个标本来探索这一极具魅力的蜈蚣群体的系统发育、生物地理和分类。在55个标本/27个物种中，对6个基因进行了分析，首次获得了Dendrothereua属、Pilbarascutigera属和Tachythereua属的分子数据，以及以前未采样的马达加斯加Scutigerinae物种。来自澳大利亚和新喀里多尼亚的海参的采样密度特别增加。组合分析的最优参数集倾向于在剑齿科的基础上将剑齿科从剑齿科+剑齿科中分离出来，但大多数次优参数集却将剑齿科和剑齿科统一起来。Dendrothereua被重新建立为一个新热带的分支，它不同地分解为Tachythereua的姐妹或从Scutigerinae分离，与Pselliodidae和Scutigerinidae分组。根据传统诊断，构成澳大利亚和新喀里多尼亚多样性的大部分属，Allothereua和Parascutigera，相互是多种的，尽管它们统一为一个得到很好支持的分支，与西澳大利亚Pilbarascutigera姐妹或包括在内。Allothereua/Parascutigera分支的主要生物地理信号是西澳大利亚作为澳大利亚东部/新喀里多尼亚的姐妹地区，其中新喀里多尼亚“Parascutigera”在最优参数集下具有单一起源。利用在其整个本地分布的Scutigera coleoptrata样本以及来自Allothereua/Parascutigera分支的推定共人记录，对scutigeromorph物种的遗传变异进行了评估。在北昆士兰6个所谓的小范围特有种之间的变异与单一物种一致。
Phylogeny of the centipede order Scutigeromorpha has received recent attention from combined analyses of molecular and morphological data. Denser generic sampling, an additional marker (12S rRNA), and multiple specimens for selected species are used to explore phylogeny, biogeography and taxonomy of this charismatic group of centipedes. Among 55 specimens/27 species analysed for six genes are the first molecular data for the genera Dendrothereua, Pilbarascutigera, and Tachythereua, and previously unsampled species of Scutigerinae from Madagascar. Sampling density is especially increased for Thereuoneminae from Australia and New Caledonia. At the base of Scutigeromorpha, the split of Pselliodidae from Scutigerinidae + Scutigeridae is favoured by the optimal parameter set in combined analyses, but most suboptimal parameter sets instead unite pselliodids and scutigerinids. Dendrothereua is re-established for a Neotropical clade that variably resolves as sister to Tachythereua or separate from Scutigerinae, grouped with Pselliodidae and Scutigerinidae. As traditionally diagnosed, the genera that comprise most of Australian and New Caledonian diversity, Allothereua and Parascutigera, are mutually polyphyletic, though they unite as a well supported clade, sister to or including the Western Australian Pilbarascutigera. The main biogeographical signal within the Allothereua/Parascutigera clade is Western Australia as sister area to eastern Australia/New Caledonia, within which New Caledonian "Parascutigera" has a single origin under optimal parameter sets. Genetic variation within scutigeromorph species is appraised using samples of Scutigera coleoptrata throughout its native distribution plus presumed synanthropic records, and from the Allothereua/Parascutigera clade. Variation between six alleged narrow-range endemic species of Parascutigera in north Queensland is consistent with a single species.