人类辅助基因流动有助于基因抢救。小种群近亲繁殖率高会降低多样性,降低体能,增加灭绝风险。通过人类干扰引入不相关的个人或生物体可以减少近亲繁殖的程度,改善多样性,从而提高整体健康。 Tags Gene FlowGenetic VariationPopulationTransfer Of Genetic VariantsOrganismsGametesPlant PollenAnimalsNovel Genetic VariantsGene Freq...
Theoretical studies have not differentiated between the effects of genes andchromosomal rearrangementson gene flow, but empirical data suggest that there might be a large difference46,47. In three wildsunflower(Helianthus)hybrid zones(Fig. 1a), for example, rates ofintrogressionwere 50% lower across...
These data can be used to fairly rapidly build a picture of the epistatic interactions between genes. Ideally the GRN should include the direct regulatory connections, i.e., that each interaction shown should be the binding of the factor to the CRM of the target gene. Here again new ...
We then investigated the role ofYANandAltYANin dehydration stress response. The two transcripts were knocked out altogether inP. patensthrough homologous recombination using the polyethylene glycerol-mediated method19(Supplementary Fig.10a). The knockout mutants, namelyyan/altyan, were identified by genoty...
The incorporation of these additional data sets obtained from new specimens, sites and time points allows us to draw a more nuanced picture of the population movements and dynamics during this important period in the prehistory of eastern Europe. Results We generated genome-wide shotgun sequencing ...
In the last chapter, no attempt was made to describe how animals mediate patterns of pollen flow within and between plants, nor how efficient various pollination mechanisms are in the dispersal of pollen and in achieving seed-set. The behaviour of pollinators strongly influences pollen flow, and...
Genetic diversity, genetic structure, and gene flow in plant populations and their influencing factors are important in conservation biology. Cypripedium macranthos is one of the few wild orchids with high ornamental value in northern China. However, over the past decade, excessive collection, trading...
Horizontal Gene Transfer (HGT) is beneficial to a cell if the acquired gene confers a useful function, but is detrimental if the gene has no function, if it is incompatible with existing genes, or if it is a selfishly replicating mobile element. If the b
these results show that the true behaviour of the underlying biological process is captured at different time points, with each time point containing a unique piece of information that should be integrated in order to get the whole picture underlying the signalling pathway during SAR. Therefore, stu...
Flow cytometry comparing DNA content of extracellular and intracellular tachyzoites shows a much greater proportion of haploid parasites (G1) in the extracellular group (Additional file 6: Figure S3). This confirms that extracellular parasites exist almost exclusively outside of the S phase and that...