Document Detail

Molecular characterization of repetitive DNA sequences from a B chromosome.
MedLine Citation:
PMID:  1339320     Owner:  NLM     Status:  MEDLINE    
In the parasitic wasp Nasonia vitripennis, certain males carry a B chromosome, called PSR (paternal sex ratio), which causes the compaction and subsequent loss of the paternal chromosomes in fertilized eggs. Because Nasonia are haplo-diploid, this leads to the production of all-male broods. Three families (PSR2, PSR18, PSR22) of related, tandemly repetitive DNAs were shown to be present solely on the PSR chromosome. These three families shared two conserved, palindromic DNA sequences, which may play a role in either PSR function or amplification of the tandem arrays. The tandem repeat family NV79 was determined to be present on the PSR chromosome as well as on at least one of the A chromosomes. This shared repeat as well as two repeat families (NV85, NV126) that were localized on the A chromosomes were detected in two sibling species of N. vitripennis. NV79 and NV126 were also found in the more distantly related species, Trichomalopsis dubius.
D G Eickbush; T H Eickbush; J H Werren
Publication Detail:
Type:  Journal Article; Research Support, U.S. Gov't, P.H.S.    
Journal Detail:
Title:  Chromosoma     Volume:  101     ISSN:  0009-5915     ISO Abbreviation:  Chromosoma     Publication Date:  1992 Aug 
Date Detail:
Created Date:  1992-10-13     Completed Date:  1992-10-13     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  2985138R     Medline TA:  Chromosoma     Country:  GERMANY    
Other Details:
Languages:  eng     Pagination:  575-83     Citation Subset:  IM    
Department of Biology, University of Rochester, NY 14627.
Data Bank Information
Bank Name/Acc. No.:
GENBANK/S47168;  S72771;  X64089;  X64090;  X64091;  X64092;  X64093;  X64094;  X64095;  X64096
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MeSH Terms
Base Sequence
Blotting, Southern
Molecular Sequence Data
Repetitive Sequences, Nucleic Acid*
Sequence Homology, Nucleic Acid
Sex Chromosomes / chemistry*,  ultrastructure
Reg. No./Substance:

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