Mitochondrial diversity within modern human populations

Mitochondrial diversity within modern human populations

With the recent increase in the available number of high-quality, full-length mitochondrial sequences, it is now possible to construct and analyze a comprehensive human mitochondrial consensus sequence. Using a data set of 827 carefully selected sequences, it is shown that modern humans contain extremely low levels of divergence from the mitochondrial consensus sequence, differing by a mere 21....

Mitochondrial DNA diversity in Southeast Asian populations.

In a previous study of Southeast Asian genetic variation, we characterized mitochondrial DNAs (mtDNAs) from six populations through high-resolution restriction fragment length polymorphism (RFLP) analysis. Our analysis revealed that these Southeast Asian populations were genetically similar to each other, suggesting they had a common origin. However, other patterns of population associations al...

High mitochondrial diversity within and among populations of Malagasy poison frogs.

The diurnal, brightly colored, and toxic frogs of the genus Mantella are among the most prominent representatives of the endemic anuran fauna of Madagascar. Especially three closely related species, M. aurantiaca, M. crocea, and M. milotympanum, are intensively collected for the pet trade, although basic data on their natural history and genetic diversity are still lacking. Our phylogenetic ana...

Molecular Adaptation of Modern Human Populations

Modern humans have gone through varied processes of genetic adaptations when their ancestors left Africa about 100,000 years ago. The environmental stresses and the social transitions (e.g., emergence of the Neolithic culture) have been acting as the major selective forces reshaping the genetic make-up of human populations. Genetic adaptations have occurred in many aspects of human life, includ...

Mitochondrial Haplogroups and Well Defined Populations