Genetics Selection Evolution

, 35:673 | Cite as

Construction and characterization of a BAC library from a gynogenetic channel catfish Ictalurus punctatus

  • Sylvie MA Quiniou
  • Takayuki Katagiri
  • Norman W Miller
  • Melanie Wilson
  • William R Wolters
  • Geoffrey C Waldbieser
Open Access
Research

Abstract

A bacterial artificial chromosome (BAC) library was constructed by cloning Hind III-digested high molecular weight DNA from a gynogenetic channel catfish, Ictalurus punctatus, into the vector pBeloBAC11. Approximately 53 500 clones were arrayed in 384-well plates and stored at -80°C (CCBL1), while clones from a smaller insert size fraction were stored at -80°C without arraying (CCBL2). Pulsed-field gel electrophoresis of 100 clones after Not I digestion revealed an average insert size of 165 kb for CCBL1 and 113 kb for CCBL2. Further characterization of CCBL1 demonstrated that 10% of the clones did not contain an insert. CCBL1 provides a 7.2-fold coverage of the channel catfish haploid genome. PCR-based screening demonstrated that 68 out of 74 unique loci were present in the library. This represents a 92% chance to find a unique sequence. These libraries will be useful for physical mapping of the channel catfish genome, and identification of genes controlling major traits in this economically important species.

Keywords

bacterial artificial chromosome catfish genome Ictalurus punctatus 

(To access the full article, please see PDF)

Copyright information

© INRA, EDP Sciences 2003

Authors and Affiliations

  • Sylvie MA Quiniou
    • 1
    • 2
  • Takayuki Katagiri
    • 1
    • 3
  • Norman W Miller
    • 1
  • Melanie Wilson
    • 1
  • William R Wolters
    • 2
  • Geoffrey C Waldbieser
    • 2
  1. 1.Department of MicrobiologyUniversity of Mississippi Medical CenterJacksonUSA
  2. 2.U.S. Department of Agriculture, Agricultural Research Service, Catfish Genetics Research UnitThad Cochran National Warmwater Aquaculture CenterStonevilleUSA
  3. 3.Hubbard Center for Genome StudiesUniversity of New HampshireDurhamUSA

Personalised recommendations