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Titolo:
DIFFERENT FORCES DRIVE THE EVOLUTION OF THE ACP26AA AND ACP26AB ACCESSORY-GLAND GENES IN THE DROSOPHILA-MELANOGASTER SPECIES COMPLEX
Autore:
AGUADE M;
Indirizzi:
UNIV BARCELONA,FAC BIOL,DEPT GENET,DIAGONAL 645 E-08071 BARCELONA SPAIN
Titolo Testata:
Genetics
fascicolo: 3, volume: 150, anno: 1998,
pagine: 1079 - 1089
SICI:
0016-6731(1998)150:3<1079:DFDTEO>2.0.ZU;2-M
Fonte:
ISI
Lingua:
ENG
Soggetto:
SEMINAL FLUID PROTEIN; POSITIVE SELECTION; MOLECULAR EVOLUTION; POLYMORPHISM; DIVERGENCE; POPULATION; LOCUS; ADH; RECOMBINATION; SIMULANS;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
30
Recensione:
Indirizzi per estratti:
Citazione:
M. Aguade, "DIFFERENT FORCES DRIVE THE EVOLUTION OF THE ACP26AA AND ACP26AB ACCESSORY-GLAND GENES IN THE DROSOPHILA-MELANOGASTER SPECIES COMPLEX", Genetics, 150(3), 1998, pp. 1079-1089

Abstract

The Acp26Aa and Acp26Ab genes that code for male accessory gland proteins are tandemly arranged in the species of the Drosophila melanogaster complex. An similar to 1.6-kb region encompassing both genes has been sequenced in 10, 24, and 18 lines from Spain, Ivory Coast, and Malawi, respectively; the previously studied 10 lines from North Carolina have also been included in the analyses. A total of 110 nucleotide and4 length polymorphisms were detected. Silent variation for the whole Acp26A region was slightly higher in African than in non-African populations, while for both genes nonsynonymous variation was similar in all populations studied. Based on F-st estimates no major genetic differentiation was detected between East and West Africa, while in general non-African populations were strongly differentiated from both Africanpopulations. Comparison of polymorphism and divergence at synonymous and nonsynonymous sites revealed that directional selection acting on amino acid replacement changes has driven the evolution of the Acp26Aaprotein in the last 2.5 myr.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 04/12/20 alle ore 12:09:23