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- Title
Genetic variability and stock structure of red tilefish Branchiostegus japonicus inferred from mtDNA sequence analysis.
- Authors
Nohara, Kenji; Takeuchi, Hiroyuki; Tsuzaki, Tatsuo; Suzuki, Nobuaki; Tominaga, Osamu; Seikai, Tadahisa
- Abstract
Sequence analysis based on the anterior part of the mitochondrial DNA control region was carried out to reveal the genetic diversity, stock structure, and historical demography of the red tilefish. Nucleotide sequences of 388 bp in length were determined for 280 individuals taken from eight localities. The molecular diversity, haplotype diversity, and nucleotide diversity were relatively high (average h = 0.929 ± 0.011; average π = 0.008 ± 0.005). The mismatch distribution was not significantly different from the expected distribution for a rapidly expanding population ( P = 0.453). The minimum spanning network connecting with full-sequence haplotypes contained star-like topologies derived from multiple ancient lineages, supporting the mismatch distribution analysis. No significant genetic differentiation was observed among eight localities (maximum pairwise FST = 0.023, reduced-sequence data set). Our results suggest a large panmictic population of the red tilefish along the coast of Honshu to the East China Sea.
- Subjects
MITOCHONDRIAL DNA; GENETICS; MARINE biology; BIOTIC communities; BIODIVERSITY
- Publication
Fisheries Science, 2010, Vol 76, Issue 1, p75
- ISSN
0919-9268
- Publication type
Article
- DOI
10.1007/s12562-009-0188-8