Skip to content Skip to navigation
University of Warwick
  • Study
  • |
  • Research
  • |
  • Business
  • |
  • Alumni
  • |
  • News
  • |
  • About

University of Warwick
Publications service & WRAP

Highlight your research

  • WRAP
    • Home
    • Search WRAP
    • Browse by Warwick Author
    • Browse WRAP by Year
    • Browse WRAP by Subject
    • Browse WRAP by Department
    • Browse WRAP by Funder
    • Browse Theses by Department
  • Publications Service
    • Home
    • Search Publications Service
    • Browse by Warwick Author
    • Browse Publications service by Year
    • Browse Publications service by Subject
    • Browse Publications service by Department
    • Browse Publications service by Funder
  • Help & Advice
University of Warwick

The Library

  • Login
  • Admin

A study of the histone genes of "Xenopus borealis"

Tools
- Tools
+ Tools

Bagenal, Edward Beauchamp Dudliegh (1990) A study of the histone genes of "Xenopus borealis". PhD thesis, University of Warwick.

[img]
Preview
PDF
WRAP_Theses_Bagenal_1990.pdf - Submitted Version - Requires a PDF viewer.

Download (4Mb) | Preview
Official URL: http://webcat.warwick.ac.uk/record=b3202879~S15

Request Changes to record.

Abstract

A previous study showed that unlike X. laevis, X. borealis contains a predominant or major histone gene cluster, which contains 70« of the 80-90 copies of the H4 genes in the genome (Turner t Woodland 1983 <Nucl.Acids Res.il 978>). This prompted more detailed analysis of histone gene arrangements in X. borealis, which is the subject of this thesis. Clones containing histone genes were isolated from a library prepared for this purpose. Analysis of these clones indicated one class containing the major cluster, and a second, minor class which appeared to be cloned at high frequency. Representative members of each class were characterised in detail. Major cluster clone XbHW302 was restriction site mapped, and certain regions sequenced. Microinjection of the major cluster clones in to Xenopus oocytes, confirmed that these genes were functional. Attention was then turned to the chromosomal organisation of the major cluster. A 'chromosome walk' experiment allowed the isolation of clones indicating a tandem of arrangement of clusters on the chromosome. This allowed the complete 'repeat' to be mapped in detail, further studies confirmed that the majority of clusters are tandemly repeated in the genome. The minor cluster clones were analysed in a fashion similar to the major class. Restriction site mapping and DMA sequencing of clone XbHW61 allowed the location polarity, and identity of an H3, H4, and an HI gene to be determined. Microinjection analysis again showed the genes were functional. Extensive DNA sequence comparisons between various Xenopus histone gene clusters were undertaken. The picture of histone gene cluster structure in X. borealis that emerges from these studies, is compared at the nucleotide, gene, and chromosomal levels with X. laevis. A discussion of how the differences between such closely related species could have arisen is also included.

Item Type: Thesis (PhD)
Subjects: Q Science > QL Zoology
Library of Congress Subject Headings (LCSH): Xenopus -- Genetics, Histones, Frogs
Official Date: 1990
Dates:
DateEvent
1990UNSPECIFIED
Institution: University of Warwick
Theses Department: School of Life Sciences
Thesis Type: PhD
Publication Status: Unpublished
Supervisor(s)/Advisor: Woodland, Hugh
Extent: viii, 200 leaves : illustrations
Language: eng

Request changes or add full text files to a record

Repository staff actions (login required)

View Item View Item

Downloads

Downloads per month over past year

View more statistics

twitter

Email us: wrap@warwick.ac.uk
Contact Details
About Us