Population Genetic Structure And Comparative Diversity Of Smallmouth Bass Micropterus Dolomieu: Congruent Patterns From Two Genomes

Details

• Journal Title:
  Journal of Fish Biology
• Personal Author:
  Stepien, C. A. ; Karsiotis, S. I. ; Sullivan, T. J. ; Klymus, K. E.
• NOAA Program & Office:
  Sea Grant ; OAR (Oceanic and Atmospheric Research) ; PMEL (Pacific Marine Environmental Laboratory)
• Sea Grant Program:
  OHSU (Ohio Sea Grant)
• Description:
  Genetic diversity and divergence patterns of smallmouth bass Micropterus dolomieu spawning groups are analysed across its northern native range with mtDNA cytochrome b gene sequences and eight unlinked nuclear DNA microsatellite loci. Results reveal high levels of genetic variability and significant differences in allelic representation among populations (mtDNA: mean ± s.e., HD = 0·50 ± 0·06, mean ± s.e., θST = 0·41 ± 0·02 and microsatellites: mean ± s.e. HO = 0·46 ± 0·03, mean ± s.e. θST = 0·25 ± 0·01). The distributions of 28 variant mtDNA haplotypes, which differ by an average of 3·94 nucleotides (range = 1–8), denote divergent representation among geographic areas. Microsatellite data support nine primary population groups, whose high self-assignment probabilities likewise display marked divergence. Genetic patterns demonstrate: (1) high genetic diversity in both genomes, (2) significant divergence among populations, probably resulting from natal site homing and low lifetime migration, (3) support for three post-glacial refugia that variously contributed to the current northern populations, which remain evident today despite waterway connectivity and (4) a weak yet significant genetic isolation by geographic distance pattern, indicating that other processes affect the differences among populations, such as territoriality and site fidelity.
• Keywords:
  Cytochrome B Micropterus Dolomieu Microsatellites Phylogeography Smallmouth Bass Cytochrome B Micropterus Dolomieu Smallmouth Bass
• Source:
  Fish Biol, 90: 2125-2147
• DOI:
  https://doi.org/10.1111/jfb.13296
• Document Type:
  Journal Article
• Place as Subject:
  Great Lakes
• Rights Information:
  Accepted Manuscript
• Compliance:
  Library
• Main Document Checksum:
  urn:sha256:84011329192ffd9b9445bf5d5045b78acf6f4f727ca9706459c37ef586f20ad5
• Download URL:
  https://repository.library.noaa.gov/view/noaa/33200/noaa_33200_DS1.pdf
• File Type:
  [PDF - 635.64 KB ]