Population genetics II: changes in allele frequency. A Primer of Ecological Genetics. Sinauer Associates, Inc., Sunderland, Massachusetts, pp. 47-95 (Chapter 3).Conner, J.K. & Hartl, D.L. (2004) Population genetics II: changes in allele frequency. A primer of ecological genetics (ed. by...
Randomly Amplified Polymorphic DNA markers were used to evaluate diversity and similarities in populations treated with colchicine. Colchicine treatment generated differences beyond the levels of inter and intra-population variability. Contrary to expectations, colchicine-treated plants obtained by dipping in ...
In other words, the outlier values of change in allele frequency in some loci, detected from the comparison of the observed and expected temporal genetic differentiation (FST), were mainly the result of selection among the pre-existing allelic combinations. The above-described multiline genetic ...
In the absence of counterselection, such a culling of VV fetuses would have rapidly reduced the V allele frequency in the population to a level well below the 38% recorded in the older age group. Two counterselective forces—greatly increased fertility in VV individuals who are not lost in ...
For the purpose of determining the characteristics of phonetic quality of voewls, the trend in the changes of formants and pitch of vowel with age and sex of speaker has been investigated by analyzing a large number of samples of five japanese vowels. Conclusions obtained are as follows. (1...
Inferring the demographic history of species is one of the greatest challenges in populations genetics. This history is often represented as a history of size changes, ignoring population structure. Alternatively, when structure is assumed, it is defined a priori as a population tree and not inferre...
A nested pattern may thus repre- sent two main situations: the alleles missing in populations with lower allelic richness were lost by drift, or the population with higher allelic richness presents ancient alleles that were spread in all populations and new muta- tions which have not yet ...
In contrast, our analysis identified a lack of most phenotypes in one C9-carrier (C9-carrier-1, except for changes in SOX2+ cell distribution) but detected a full range of defects in a presymptomatic sibling (C9-carrier-4). Two other unrelated C9-carriers displayed distinct sets of cellular...
Conservation breeding programs such as zoos play a major role in preventing extinction, but their sustainability may be impeded by neutral and adaptive population genetic change. These changes are difficult to detect for a single species or context, and impact global conservation efforts. We analyse...
The risk allele (C) frequency was 0.22 in the study population. Mean age and intervention group distribution were similar across the MC4R genotypes (all P > 0.5). After adjustment for age, the C allele was significantly associated with higher height, weight, BMI, waist circumference, body fat...