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Titolo:
TRACING THE COLONIZATION OF MADEIRA AND THE CANARY-ISLANDS BY DROSOPHILA-SUBOBSCURA THROUGH THE STUDY OF THE RP49 GENE REGION
Autore:
KHADEM M; ROZAS J; SEGARRA C; BREHM A; AGUADE M;
Indirizzi:
UNIV BARCELONA,FAC BIOL,DEPT GENET,DIAGONAL 645 E-08071 BARCELONA SPAIN UNIV MADEIRA,DEPT BIOL FUNCHAL PORTUGAL
Titolo Testata:
Journal of evolutionary biology
fascicolo: 4, volume: 11, anno: 1998,
pagine: 439 - 452
SICI:
1010-061X(1998)11:4<439:TTCOMA>2.0.ZU;2-B
Fonte:
ISI
Lingua:
ENG
Soggetto:
MITOCHONDRIAL-DNA; CHROMOSOMAL ARRANGEMENTS; GEOGRAPHIC SUBDIVISION; POPULATIONS; POLYMORPHISM; EVOLUTION; HYBRIDIZATION; MELANOGASTER; INFORMATION; INVERSIONS;
Keywords:
DROSOPHILA SUBOBSCURA SPECIES CLUSTER; RP49 GENE REGION; COLONIZATION; CANARY ISLANDS; MADEIRA;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
33
Recensione:
Indirizzi per estratti:
Citazione:
M. Khadem et al., "TRACING THE COLONIZATION OF MADEIRA AND THE CANARY-ISLANDS BY DROSOPHILA-SUBOBSCURA THROUGH THE STUDY OF THE RP49 GENE REGION", Journal of evolutionary biology, 11(4), 1998, pp. 439-452

Abstract

Nucleotide variation at the nuclear ribosomal protein 49 (rp49) gene region has been analysed by fine restriction mapping in a sample of 47lines from a population from Madeira. Five restriction-site tout of 37 sites scored) and 3 length polymorphisms have been detected, resulting in 14 different haplotypes. This population shows less variation than both continental and Canary Island populations. The population fromMadeira shows some differentiation from mainland populations, which does not favor the idea of extensive migration between the continent and Madeira. Chromosomal and restriction-map variation of the rp49 region in D. subobscura populations, together with data on sequence comparison of this nuclear region in D. guanche and D. madeirensis clearly indicate that the Canary Islands underwent at least two colonization events from the nearby continent. Although the data for Madeira are compatible with a single colonization event by a continental sample polymorphic for gene arrangements O-3 and O3+4, an alternative scenario with at least two colonization events seems more likely.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 24/11/20 alle ore 08:02:46