Phylogenetic position of the enigmatic Lepidogalaxias salamandroides with comment on the orders of lower euteleostean fishes

被引:51
作者
Li, Jun [1 ,2 ]
Xia, Rong [1 ,2 ]
McDowall, R. M. [3 ]
Lopez, J. Andres [4 ,5 ]
Lei, Guangchun [6 ]
Fu, Cuizhang [1 ,2 ]
机构
[1] Fudan Univ, Minist Educ, Key Lab Biodivers Sci & Ecol Engn, Shanghai 200433, Peoples R China
[2] Fudan Univ, Inst Biodivers Sci, Shanghai 200433, Peoples R China
[3] Natl Inst Water & Atmospher Res, Christchurch, New Zealand
[4] Univ Alaska, Sch Fisheries & Ocean Sci, Fairbanks, AK 99775 USA
[5] Univ Alaska, Univ Alaska Museum, Fairbanks, AK 99775 USA
[6] Beijing Forestry Univ, Sch Nat Conservat, Beijing 100083, Peoples R China
关键词
Euteleostei; Argentiniformes; Esociformes; Galaxiiformes; Osmeriformes; Salmoniformes; WHOLE MITOGENOME SEQUENCES; MOLECULAR PHYLOGENETICS; CLASSIFICATION; ACTINOPTERYGII;
D O I
10.1016/j.ympev.2010.07.016
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
This study examines phylogenetic placement of the enigmatic Western Australian Lepidogalaxias, and extends previous studies by including eight new taxa to enable re-examination phylogenetic relationships of lower euteleostean fishes at the ordinal level, based on mitochondrial genomes from 39 ingroup taxa and 17 outgroups. Our results suggest that Lepidogalaxias occupies a basal position among all euteleosts, in contrast with earlier hypotheses that variously suggested a closer relationship to esocid fishes, or to the galaxiid Lovettia. In addition our evidence shows that Osmeriformes should be restricted Retropinnidae, Osmeridae, Plecoglossidae and Salangidae. This reduced Osmeriformes is supported in our results as the sister group of Stomiiformes. Galaxiidae, which is often closely linked to Osmeriformes, emerges as sister group of a combined Osmeriformes, Stomiiformes, Salmoniformes, Esociformes and Argentiformes, and we give Galaxiiformes the rank of order to include all remaining galaxioid fishes (Galaxias and allied taxa, Aplochiton and Lovettia). Our results also support a sister group relationship between Salmoniformes and Esociformes, which are together the sister group of Argentiniformes. (C) 2010 Elsevier Inc. All rights reserved.
引用
收藏
页码:932 / 936
页数:5
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