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2006-05-29 11:50:12 | Hit : 28726 | Vote : 9375

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[자료] Two new avian mitochondrial genomes (penguin and goose) and a summary of bird and reptile mitogenomic features

Two new avian mitochondrial genomes (penguin and goose) and a
summary of bird and reptile mitogenomic features

Kerryn E. Slack a,b*, Axel Janke a, David Penny b, Ulfur Arnason a
a Division of Evolutionary Molecular Systematics, Department of Cell and Organism Biology, University of Lund, So¨lvegatan 29, S-223 62 Lund, Sweden
b Allan Wilson Center for Molecular Ecology and Evolution, Institute of Molecular BioSciences, Massey University, Palmerston North, New Zealand

Received 22 April 2002; received in revised form 6 September 2002; accepted 23 September 2002
Received by T. Gojobori

Abstract

We report complete mitochondrial (mt) genomes for a penguin (little blue, Eudyptula minor ) and a goose (greater white-fronted, Anser
albifrons ). A revised annotation of avian and reptile mt genomes has been carried out, which improves consistency of labeling gene start and
stop positions. In conjunction with this, a summary of mt gene features is presented and a number of conserved patterns and interesting differences identified. The protein-coding genes from the two new genomes were analysed together with those from 17 other birds plus outgroup (reptile) taxa. The unrooted amino acid tree from 19 avian genomes was locally stable with many high bootstrap values using several maximum likelihood methods. In particular, Anseriformes (goose and duck) grouped strongly with Galliformes (chicken) to form
Gallianseres, while the penguin paired firmly with the stork. The position where the outgroup joined the avian tree varied with the
combination of outgroup taxa used. The three best supported positions of the root were passerine, but the traditional rooting position between paleognaths and neognaths could not be excluded.

q 2002 Elsevier Science B.V. All rights reserved.

Keywords: Complete mtDNAs; Genome annotation; Avian evolution

Gene 302 (2003) 43–52
www.elsevier.com/locate/gene

http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&list_uids=12527195&dopt=Abstract

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