Genetic and morphological differences between Sebastes vulpes and S. zonatus (Teleostei: Scorpaeniformes: Scorpaenidae)

Muto, Nozomu and Kai, Yoshiaki and Nakabo, Tetsuji (2011) Genetic and morphological differences between Sebastes vulpes and S. zonatus (Teleostei: Scorpaeniformes: Scorpaenidae). Fishery Bulletin, 109(4), pp. 429-439.

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Official URL: http://fishbull.noaa.gov/1094/1094muto.pdf

Abstract

The taxonomic status of Sebastes vulpes and S. zonatus were clarified by comprehensive genetic (amplif ied fragment length polymorphisms [AFLP] and mitochondrial DNA [mtDNA] variation) and morphological analyses on a total of 65 specimens collected from a single locality. A principal coordinate analysis based on 364 AFLP loci separated the specimens completely into two genetically distinct groups that corresponded to S. vulpes and S. zonatus according to body coloration and that indicated that they are reproductively isolated species. Significant morphological differences were also evident between the two groups; 1) separation by principal component analysis based on 31 measurements, and 2)separation according to differences in counts of gill rakers and dorsal-fin spines without basal scales, and in the frequencies of specimens with small scales on the lower jaw. Restriction of gene flow between the two groups was also indicated by the pairwise ΦST values estimated from variations in partial sequences from the mtDNA control region, although the minimum spanning network did not result in separation into distinct clades. The latter was likely due to incomplete lineage sorting between S. vulpes and S. zonatus owing to their recent speciation.

Item Type: Article
Title: Genetic and morphological differences between Sebastes vulpes and S. zonatus (Teleostei: Scorpaeniformes: Scorpaenidae)
Personal Creator/Author:
CreatorsEmail
Muto, Nozomu
Kai, Yoshiaki
Nakabo, Tetsuji
Refereed: Yes
Journal or Publication Title: Fishery Bulletin
Volume: 109
Number: 4
Page Range: pp. 429-439
Date: 2011
ISSN: 0090-0656
Issuing Agency: United States National Marine Fisheries Service
Subjects: Biology
Ecology
Fisheries
Item ID: 8702
Depositing User: Patti M. Marraro
Date Deposited: 07 Jun 2012 14:51
Last Modified: 07 Jun 2012 14:51
URI: http://aquaticcommons.org/id/eprint/8702

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