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Titolo:
MOLECULAR AND CHROMOSOMAL PHYLOGENY IN THE OBSCURA GROUP OF DROSOPHILA INFERRED FROM SEQUENCES OF THE RP49 GENE REGION
Autore:
RAMOSONSINS S; SEGARRA C; ROZAS J; AGUADE M;
Indirizzi:
UNIV BARCELONA,FAC BIOL,DEPT GENET BARCELONA SPAIN UNIV BARCELONA,FAC BIOL,DEPT GENET BARCELONA SPAIN
Titolo Testata:
Molecular phylogenetics and evolution
fascicolo: 1, volume: 9, anno: 1998,
pagine: 33 - 41
SICI:
1055-7903(1998)9:1<33:MACPIT>2.0.ZU;2-U
Fonte:
ISI
Lingua:
ENG
Soggetto:
MITOCHONDRIAL-DNA EVOLUTION; SPECIES GROUP; SUBOBSCURA; SUBSTITUTIONS; MELANOGASTER; DIVERGENCE; INFORMATION; SENSITIVITY; POLYMERASE; INVERSIONS;
Keywords:
DROSOPHILA; OBSCURA GROUP; MOLECULAR PHYLOGENY; RP49 GENE REGION; CHROMOSOMAL INVERSIONS;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
49
Recensione:
Indirizzi per estratti:
Citazione:
S. Ramosonsins et al., "MOLECULAR AND CHROMOSOMAL PHYLOGENY IN THE OBSCURA GROUP OF DROSOPHILA INFERRED FROM SEQUENCES OF THE RP49 GENE REGION", Molecular phylogenetics and evolution, 9(1), 1998, pp. 33-41

Abstract

A region of approximately 1.6 kb encompassing the ribosomal protein 49 gene (rp49) has been sequenced and compared in nine species of the obscura group of Drosophila: four species belonging to the obscura subgroup, three to the pseudoobscura subgroup, and two to the affinis subgroup. Our data provide strong support that the Nearctic species (pseudoobscura and affinis subgroups) are monophyletic and place D. bifasciata with the other species of the obscura subgroup. Nucleotide sequenceinformation at the rp49 gene region (located very close to one of thebreakpoints of inversion O-3) has also been used to infer the phylogeny of the O chromosome in the subobscura species cluster. Analysis based both on parsimony-informative sites and on genetic distances confirms that the O-3 gene arrangement, present in D. guanche (together withinversion g) and in D. madeirensis, is ancestral to gene arrangementsO3+4 and O-st present in extant populations of D. subobscura. (C) 1998 Academic Press.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 04/12/20 alle ore 13:22:02