Microsatellite and mitochondrial DNA analyses of the genetic structure of blacktip shark (Carcharhinus limbatus) nurseries in the northwestern Atlantic, Gulf of Mexico, and Caribbean Sea.
作者： D. B. KEENEY , M. R. HEUPEL , R. E. HUETER , E. J. HEIST
DOI: 10.1111/J.1365-294X.2005.02549.X
关键词:
摘要: We investigated the genetic structure of blacktip shark (Carcharhinus limbatus) continental nurseries in northwestern Atlantic Ocean, Gulf Mexico, and Caribbean Sea using mitochondrial DNA control region sequences eight nuclear microsatellite loci scored neonate young-of-the-year sharks. Significant was detected with both markers among nine (mitochondrial PhiST = 0.350, P < 0.001; 0.007, 0.001) sharks from Atlantic, eastern western northern Yucatan, Belize possessed significantly different haplotype frequencies. Microsatellite differentiation limited to comparisons involving Yucatan homogeneity throughout Atlantic. Differences magnitude maternal vs. biparental support female philopatry natal nursery regions higher levels male-mediated gene flow. Philopatry has produced multiple reproductive stocks this commercially important species range study.
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