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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
agricultural and biological sciences
Mitochondrial DNA evolution in lagomorphs: Origin of systematic heteroplasmy and organization of diversity in European rabbits
Journal of Molecular Evolution, Volume 33, No. 1, Year 1991
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Description
A characterization was conducted on mitochondrial DNA (mtDNA) molecules extracted separately from 107 European rabbits (Oryctolagus cuniculus) both wild and domestic, 13 European hares (Lepus capensis), and 1 eastern cottontail (Sylvilagus floridanus). Experimentally this study took into account restriction site polymorphism, overall length variation of the noncoding region, and numbers of repeated sequences. Nucleotide divergences indicate that the mtDNAs from the three species derived from a common ancestor some 6-8 million years (Myr) ago. Every animal appeared heteroplasmic for a set of molecules with various lengths of the noncoding region and variable numbers of repeated sequences that contribute to them. This systematic heteroplasmy, most probably generated by a rate of localized mtDNA rearrangements high enough to counterbalance the cellular segregation of rearranged molecules, is a shared derived character of leporids. The geographic distribution of mtDNA polymorphism among wild rabbit populations over the western European basin shows that two molecular lineages are represented, one in southern Spain, the second over northern Spain, France, and Tunisia. These two lineages derived from a common ancestor some 2 Myr ago. Their present geographical distribution may be correlated to the separation of rabbits into two stocks at the time of Mindel glaciation. Finally the distribution of mtDNA diversity exhibits a mosaic pattern both at inter- and intrapopulation levels. © 1991 Springer-Verlag New York Inc.
Authors & Co-Authors
Biju-Duval, Christophe
France, Gif-sur-yvette
Université Paris-saclay
Ennafaâ, Hajer
Tunisia, Tunis
Université de Tunis el Manar, Faculté Des Sciences de Tunis
Dennebouy, Nicole
France, Gif-sur-yvette
Université Paris-saclay
Monnerot, Monique
France, Gif-sur-yvette
Université Paris-saclay
Mignotte, Françoise
France, Gif-sur-yvette
Université Paris-saclay
Soriguer, R. C.
Spain, Sevilla
Csic - Estación Biologica de Doñana
El Gaaied, Amel Ben Ammar
Tunisia, Tunis
Université de Tunis el Manar, Faculté Des Sciences de Tunis
Hili, Ali El
Tunisia, Tunis
Université de Tunis el Manar, Faculté Des Sciences de Tunis
Mounolou, Jean Claude
France, Gif-sur-yvette
Université Paris-saclay
Statistics
Citations: 73
Authors: 9
Affiliations: 3
Identifiers
Doi:
10.1007/BF02100200
ISSN:
00222844
e-ISSN:
14321432
Research Areas
Genetics And Genomics
Study Locations
Tunisia