Detection of genetically unstable loci in parthenogenic families of lizards of theLacerta genus by DNA fingerprinting

Two parthenogenic families of unisexual species of Caucasian rock lizards of genusLacerta, L. armeniaca andL. unisexualis, were analyzed by DNA fingerprinting. Inheritance of M13 minisatellite and of (GACA)n, (GATA)n, and (TCC)n microsatellite loci in the first generation of the lizards was studied....

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:Molecular biology (New York) Jg. 34; H. 5; S. 707 - 711
Hauptverfasser: Kan, N. G., Martyrosyan, I. A., Darevsky, I. S., Danielyan, F. D., Arakelyan, M. S., Aslanyan, A. V., Grechko, V. V., Tokarskaya, O. N., Ryskov, A. P.
Format: Journal Article
Sprache:Englisch
Veröffentlicht: New York Springer Nature B.V 01.09.2000
Schlagworte:
Deoxyribonucleic acid
DNA
DNA fingerprinting
DNA fingerprints
Genomes
Offspring
Parthenogenesis
ISSN:0026-8933, 1608-3245
Online-Zugang:Volltext
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:Two parthenogenic families of unisexual species of Caucasian rock lizards of genusLacerta, L. armeniaca andL. unisexualis, were analyzed by DNA fingerprinting. Inheritance of M13 minisatellite and of (GACA)n, (GATA)n, and (TCC)n microsatellite loci in the first generation of the lizards was studied. M13, (GACA)n, and (TCC)n loci in the families ofL. armeniaca were strictly inherited, as well as M13 and (GACA)n loci in the families ofL. unisexualis: each DNA fragment in the fingerprint patterns of progeny could be detected in the maternal pattern. However, when a (TCC)50 microsatellite probe was applied in the study ofL. unisexualis families, specific DNA fragments with altered mobility were revealed in the progeny patterns, and the frequency of such events was rather high. It might be hypothesized that some of the (TCC)n loci inL. unisexualis genome are highly mutable. Hence, the family analysis allowed us to demonstrate experimentally the presence of genetically unstable loci in genomes of parthenogenic species of vertebrates. The nature and mechanism of the instability of these loci in parthenogenesis remain obscure.
Bibliographie:ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 14
ObjectType-Feature-1
ISSN:0026-8933
1608-3245
DOI:10.1007/BF02759612