Repetitive DNA sequences from the X chromosome of the spiny eel (Mastacembelus aculeatus) |
| |
Authors: | Gang Zhao Qixing Yu Ji Chen Boping Wang Yating Zang Jiangdong Liu |
| |
Institution: | (1) School of Basic Medical Sciences, Hubei University of Chinese Medicine, Wuhan, 430061, Hubei, China;(2) College of Life Sciences, Wuhan University, Wuhan, 430072, Hubei, China |
| |
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.
|
| |
Keywords: | repetitive sequences sex chromosome spiny eel |
本文献已被 SpringerLink 等数据库收录! |
|