By Topic

A New Sex Chromosome Marker, Similar to DNA Polymerase Type B, in the Platyfish Xiphophorus Maculatus

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$33 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

6 Author(s)
Qingchun Zhou ; Physiologische Chem. I, Univ. of Wurzburg, Wurzburg ; Alexander Froschauer ; Christina Schultheis ; Ingo Braasch
more authors

A consensus sequence, encoding a putative DNA polymerase type B, was assembled from the sex determination region of Xiphophorus maculatus. This predicted protein, which is 1158aa in length, contains a DNA_pol_B_2 domain and a DTDS motif. The DNA polymerase type B gene has about 10 copies in the haploid X. maculatus, genome with one Y-specific copy. Interestingly, it has specific copies on the W chromosome in the X maculatus Usumacinta strain (sex determination with female heterogamety), which represent new markers for this type of sex chromosome in platyfish. This marker with W- and Y- specific copies suggests relationship between the different types of gonosomes and allows comparing male and female heterogameties in the platyfish. Further molecular analysis of the DNA polymerase type B gene in X maculatus will shed new light on the evolution of sex chromosomes in platyfish.

Published in:

2008 2nd International Conference on Bioinformatics and Biomedical Engineering

Date of Conference:

16-18 May 2008