Construction of two BAC libraries from half-smooth tongue sole Cynoglossus semilaevis and identification of clones containing candidate sex-determination genes. Academic Article uri icon


  • Half-smooth tongue sole (Cynoglossus semilaevis) is an increasingly important aquaculture species in China. It is also a tractable model to study sex chromosome evolution and to further elucidate the mechanism of sex determination in teleosts. Two bacterial artificial chromosome (BAC) libraries for C. semilaevis, with large, high-quality inserts and deep coverage, were constructed in the BamHI and HindIII sites of the vector pECBAC1. The two libraries contain a total of 55,296 BAC clones arrayed in 144 384-well microtiter plates and correspond to 13.36 haploid genome equivalents. The combined libraries have a greater than 99% probability of containing any single-copy sequence. Screening high-density arrays of the libraries with probes for female-specific markers and sex-related genes generated between 4-46 primary positive clones per probe. Thus, the two BAC libraries of C. semilaevis provided a readily useable platform for genomics research, illustrated by the isolation of sex determination gene(s).

published proceedings

  • Mar Biotechnol (NY)

author list (cited authors)

  • Shao, C., Chen, S., Scheuring, C. F., Xu, J., Sha, Z., Dong, X., & Zhang, H.

complete list of authors

  • Shao, Chang-Wei||Chen, Song-Lin||Scheuring, Chantel F||Xu, Jian-Yong||Sha, Zhen-Xia||Dong, Xiao-Li||Zhang, Hong-Bin

publication date

  • January 1, 2010 11:11 AM