Abstract
To investigate the characters of repetitive DNA sequence in the sex chromosomes of the spiny eel (Mastacembelus aculeatus), the X chromosomal library was screened and a family of repetitive sequence, consisting of Ma 1-Ma 6, was isolated. The fluorescence in situ hybridization (FISH) result confirmed that Ma 1 - Ma 5 dispersed over sex chromosomes and all autosomes, whereas, Ma 6 is sex chromosome-specific and distributed only on the C-band positive regions of X chromosome, and Ma 6 maybe the main components of the heterochromatic regions of X chromosome. This study provides additional information about the evolution of sex chromosomes in lower vertebrates such as fish.
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Zhao, G., Yu, Q., Chen, J. et al. Repetitive DNA sequences from the X chromosome of the spiny eel (Mastacembelus aculeatus). Wuhan Univ. J. Nat. Sci. 14, 183–188 (2009). https://doi.org/10.1007/s11859-009-0218-5
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DOI: https://doi.org/10.1007/s11859-009-0218-5