Understanding subterranean variability: the first genus of Bathynellidae (Bathynellacea, Crustacea) from Western Australia described through a morphological and multigene approach

被引:22
作者
Perina, G. [1 ,2 ]
Camacho, A. I. [3 ]
Huey, J. [1 ,2 ,4 ]
Horwitz, P. [1 ]
Koenders, A. [1 ]
机构
[1] Edith Cowan Univ, Ctr Ecosyst Management, 270 Joondalup Dr, Joondalup, WA 6027, Australia
[2] Western Australian Museum, Locked Bag 49, Welshpool Dc, WA 6986, Australia
[3] CSIC, Museo Nacl Ciencias Nat, Dept Biodiversidad & Biol Evolut, C Jose Gutierrez Abascal 2, E-28006 Madrid, Spain
[4] Univ Western Australia, Sch Anim Biol, 35 Stirling Highway, Crawley, WA 6009, Australia
关键词
ABGD; mitochondrial DNA; morphology; new species; nuclear DNA; Pilbara; Pilbaranella; PTP; species delimitation; stygofauna; SHORT-RANGE ENDEMISM; PILBARA REGION; CRYPTIC SPECIATION; GROUNDWATER FAUNA; SYNCARIDA; DIVERSITY; EVOLUTION; TAXONOMY; PARABATHYNELLIDAE; BIODIVERSITY;
D O I
10.1071/IS17004
中图分类号
Q [生物科学];
学科分类号
07 ; 0710 ; 09 ;
摘要
The number of subterranean taxa discovered in the north of Western Australia has substantially increased due to the requirements for environmental surveys related to mining development. Challenges in estimating subterranean biodiversity and distributions are related to lack of knowledge of taxa with convergent morphological characters in a largely unobservable ecosystem setting. An integrated approach is warranted to understand such complexity. Bathynellidae occur in most Australian aquifers, but only one species has been described so far, and the group lacks a reliable taxonomic framework. A new genus and one new species from the Pilbara region of Western Australia, Pilbaranella ethelensis, gen. et sp. nov., is described using both morphological and molecular data. Three additional species of Pilbaranella are defined through mitochondrial and nuclear genes, using Automatic Barcode Gap Discovery and Poisson Tree Processes species delimitation methods. A comparison of morphology and 18S rRNA sequences between Pilbaranella, gen. nov. and known lineages provides the evidentiary basis for the decision to establish a new genus. This study provides a morphological and molecular framework to work with Bathynellidae, especially in Australia where a highly diverse fauna remains still undescribed.
引用
收藏
页码:423 / 447
页数:25
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