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Titolo:
STUDIES OF THE SPECIES BARRIER BETWEEN DROSOPHILA-SUBOBSCURA AND DROSOPHILA-MADEIRENSIS IV - A GENETIC DISSECTION OF THE X-CHROMOSOME FOR SPECIATION GENES
Autore:
KHADEM M; KRIMBAS CB;
Indirizzi:
UNIV MADEIRA,DEPT BIOL P-9000 FUNCHAL PORTUGAL UNIV ATHENS,DEPT HIST & PHILOSOPHY SCI GR-16121 ATHENS GREECE
Titolo Testata:
Journal of evolutionary biology
fascicolo: 6, volume: 10, anno: 1997,
pagine: 909 - 920
SICI:
1010-061X(1997)10:6<909:SOTSBB>2.0.ZU;2-C
Fonte:
ISI
Lingua:
ENG
Soggetto:
FACTOR CAUSING STERILITY; REPRODUCTIVE ISOLATION; HYBRID STERILITY; AUTOSOMAL FACTOR; SIMULANS CLADE; Y-CHROMOSOME; MELANOGASTER; COMPLEX; LOCATION; RESCUE;
Keywords:
DROSOPHILA SUBOBSCURA; DROSOPHILA MADEIRENSIS; SPECIATION FACTORS; X-CHROMOSOME SPECIATION REGIONS; ISOLATING MECHANISM;
Tipo documento:
Article
Natura:
Periodico
Citazioni:
29
Recensione:
Indirizzi per estratti:
Citazione:
M. Khadem e C.B. Krimbas, "STUDIES OF THE SPECIES BARRIER BETWEEN DROSOPHILA-SUBOBSCURA AND DROSOPHILA-MADEIRENSIS IV - A GENETIC DISSECTION OF THE X-CHROMOSOME FOR SPECIATION GENES", Journal of evolutionary biology, 10(6), 1997, pp. 909-920

Abstract

The genetics of foul-traits contributing to the isolation mechanism between the two closely related species of Drosophila belonging to the obscura group, L. subobscura and D. madeirensis, have been investigated, especially regarding the influence exerted by the X chromosome. This chromosome has been roughly dissected genetically by the use of fourmarkers. It was found that factors affecting viability of backcross males are spread from the centromeric end of the chromosome up the region marked by Bx. Three sections were responsible for male sterility/fertility. The abnormal head shape of the backcross males was affected by factor(s) on the madeirensis and the subobscura sex chromosome located at the region of MAD1 inversion. Finally, an abnormal trait in these males (presence of extra sex combs) was found to be controlled by four sections, two on the madeirensis X chromosome and two on the subobscura one.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 30/11/20 alle ore 00:43:51