Vol. 37 No. 1, 1998
Variation in Mitochondrial DNA Sequences of Black Porgy, Acanthopagrus schlegeli, in the Coastal Waters of Taiwan
Chuen-Tan Jean1, Sin-Che Lee2,*, Che-Tsung Chen3 and Cho-Fat Hui2
1Department of Fishery Biology, Taiwan Fisheries Research Institute, Keelung, Taiwan 202
2Institute of Zoology, Academia Sinica, Taipei, Taiwan 115
3Department of Fisheries Science, College of Fisheries, National Taiwan Ocean University, Keelung, Taiwan 202
Chuen-Tan Jean, Sin-Che Lee, Che-Tsung Chen and Cho-Fat Hui (1998)
Mitochondrial DNA sequences that include the 5' end of the D-loop
region, the 3' end of the D-loop region, the tRNAPhe gene, and the 5'
end of the 12S rRNA gene were determined from 49 specimens of Acanthopagrus schlegeli and 1 specimen of A. australis
collected from 7 locations along the coastal waters of Taiwan and Matsu
off the coast of mainland China, and from an aquaculture pond. Among 33
haplotypes identified from the 49 mtDNA sequences, there were 32
variable sites, most of which occurred in the 5' end of the D-loop
region. Pairwise sequence distances among haplotypes, using the
Tamura-Nei model, range between 0.0014 and 0.0127. The phylogenetic
tree constructed by use of the unweighted pair-group method with
arithmetic average shows neither significant genealogical branches nor
geographic clusters. All of the bootstrap confidence levels resulting
from 1000 bootstrap tests are below 50%. Furthermore, the
sequencestatistics test reveals little genetic differentiation.
Apparently, wild black porgies in the coastal waters of Taiwan and
Matsu off the coast of mainland China, belong to a single population.
There is no significant genetic differentiation between the wild and
Key words: Acanthopagrus schlegeli, mtDNA, Genetic structure.
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