With the aim of addressing how microevolution operates on different biological levels, we here review genetic processes in the Arctic fox at the level of species, populations and individuals. Historical and present dispersal patterns, especially in the presence of sea ice, ar...
These results suggest that genetic drift is not the sole mechanism for linkage disequilibrium, but selection operates on 'loci' in the 3′-region in hypo- and mesoendemic areas of malaria. 展开 关键词: Linkage disequilibrium Malaria MSP-1 Recombination Wright's F statistics, Fst ...
connected habitat patches—henceforth, green corridors— have been shown to impact evolution in non-urban areas33,34,35such as forest fragments, frequently by facilitating gene flow36,37and alleviating effects of genetic drift38(but see Orrock39). In turn, these processes can ...
Gene flow operates against genetic drift and inbreeding by homogenizing populations. Distance between populations will constrain the possibility of gene exchange between populations. However, the scale however these studies used molecular markers other at which populations can be considered isolated is not ...
8]. Hybridization is considered as an important source of novelty in evolution – by adding up the genetic variation on which natural selection operates. In that case hybridization can speed the speciation process by incorporating into genomes of one species adaptive variants from another in a ...
usage of terms can drift as they are applied in different ways to newly encountered circumstances and definitions can gradually cease to be clear and need to be updated. It has been a long time since a discussion of the use of specific terms in the mobile element area has taken place and...
Genomic instability arising from defective responses to DNA damage1 or mitotic chromosomal imbalances2 can lead to the sequestration of DNA in aberrant extranuclear structures called micronuclei (MN). Although MN are a hallmark of ageing and diseases associated with genomic instability, the catalogue of...
Although the high FST estimates of the SNPs on the 96-plex assay could be due to the process of random genetic drift, locus-specific breed genetic differences could also be a result of past artificial selection. A large proportion of the genetically informative SNPs were found on chromosome 8...
It is interesting to note that founder effects were the main determinant of genetic structure of sea beet populations on driftlines on Furzey Island in Poole Harbour (Raybould et a!., 1996b), but that no founder effects could be detected among the popu- lations around the harbour edge. ...
1). Such calibration can be made for a long measurement session, provided that the experimental stability is sufficient and there is no uncontrolled signal drift of significant importance in the instrumentation. Based on Eq. (2) and inverse DFT65, the targeted single-pulse response rs(n) (=p...