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Titolo:
SOMATIC ACTIVITY OF THE MARINER TRANSPOSABLE ELEMENT IN NATURAL-POPULATIONS OF DROSOPHILA-SIMULANS
Autore:
GIRAUD T; CAPY P;
Indirizzi:
CNRS,LAB POPULAT GENET & EVOLUT F-91198 GIF SUR YVETTE FRANCE CNRS,LAB POPULAT GENET & EVOLUT F-91198 GIF SUR YVETTE FRANCE
Titolo Testata:
Proceedings - Royal Society. Biological Sciences
fascicolo: 1376, volume: 263, anno: 1996,
pagine: 1481 - 1486
SICI:
0962-8452(1996)263:1376<1481:SAOTMT>2.0.ZU;2-#
Fonte:
ISI
Lingua:
ENG
Soggetto:
P-ELEMENT; SELFISH DNA; MELANOGASTER; EVOLUTION; MAURITIANA; GENOME; GENES; TRANSPOSITION; SUPERFAMILY; INSTABILITY;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
42
Recensione:
Indirizzi per estratti:
Citazione:
T. Giraud e P. Capy, "SOMATIC ACTIVITY OF THE MARINER TRANSPOSABLE ELEMENT IN NATURAL-POPULATIONS OF DROSOPHILA-SIMULANS", Proceedings - Royal Society. Biological Sciences, 263(1376), 1996, pp. 1481-1486

Abstract

The characteristics of the mariner transposable element in natural populations of Drosophila simulans from different parts of the world were analysed. The somatic excision rate (estimated from a test-cross with a reference strain), the average number of copies (determined by Southern blots), and the presence of deleted copies (detected by polymerase chain reaction amplification) were estimated for each population. There was a great variability in the somatic excision rate, measured asthe percentage of mosaic males, both within and between populations. The population effect was highly significant. The average copy number also varied widely and was correlated with the excision rate. Rare deleted elements were detected by polymerase chain reaction and Southern blots. Percentage of mosaic males increased in strains kept for a longtime at low temperature, and the somatic excision rate increased withthe latitude of origin of populations. Therefore, these results strongly suggest that temperature could be involved in the regulation of mariner somatic excision in D, simulans.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 20/09/20 alle ore 09:28:03