Document Detail

Differences in P element population dynamics between the sibling species Drosophila melanogaster and Drosophila simulans.
MedLine Citation:
PMID:  8206365     Owner:  NLM     Status:  MEDLINE    
Patterns of P element establishment and evolution were compared in populations of D. melanogaster and D. simulans. For each species, mixed populations were initiated with M strain flies lacking P elements together with P strain flies having similar P element copy numbers and phenotypes. The mixed populations were subsequently maintained under similar environmental conditions. On the basis of gonadal sterility assays, P elements tended to be significantly more active in D. melanogaster than in D. simulans populations. This activity difference between the two species was positively associated with P element copy number, determined by restriction enzyme analysis, and transposition frequency, as determined by a transposition assay. Host factors are the most likely explanation for the observed species variation. Difficulty of establishment may be a factor determining the absence of P elements in natural populations of D. simulans.
K Kimura; M G Kidwell
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Publication Detail:
Type:  Journal Article; Research Support, U.S. Gov't, Non-P.H.S.; Research Support, U.S. Gov't, P.H.S.    
Journal Detail:
Title:  Genetical research     Volume:  63     ISSN:  0016-6723     ISO Abbreviation:  Genet. Res.     Publication Date:  1994 Feb 
Date Detail:
Created Date:  1994-07-12     Completed Date:  1994-07-12     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0370741     Medline TA:  Genet Res     Country:  ENGLAND    
Other Details:
Languages:  eng     Pagination:  27-38     Citation Subset:  IM    
Department of Ecology and Evolutionary Biology, University of Arizona, Tucson 85721.
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MeSH Terms
Crosses, Genetic
DNA Transposable Elements*
Drosophila / classification,  genetics*
Drosophila melanogaster / genetics
Hybridization, Genetic
Infertility / genetics
Population Dynamics
Species Specificity
Reg. No./Substance:
0/DNA Transposable Elements

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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