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Gene flow is the transfer of alleles from one population to another population through immigration of individuals. In population genetics, gene flow (also known as migration and allele flow) is the transfer of genetic material from one population to another. If the rate of gene flow is high enough, then two populations will have equivalent ...
Examples of gene flow within a species include the migration and then breeding of organisms, or the exchange of pollen. Gene transfer between species includes the formation of hybrid organisms and horizontal gene transfer. Population genetic models can be used to identify which populations show significant genetic isolation from one another ...
The patterns of seed dispersal are determined in large part by the specific dispersal mechanism, and this has important implications for the demographic and genetic structure of plant populations, as well as migration patterns and species interactions. There are five main modes of seed dispersal: gravity, wind, ballistic, water, and by animals.
Two populations with individuals moving between the populations to demonstrate gene flow. Clines are often cited to be the result of two opposing drivers: selection and gene flow (also known as migration). [5] Selection causes adaptation to the local environment, resulting in different genotypes or phenotypes being favoured in different ...
An image of multiple chromosomes, taken from many cells. Plant genetics is the study of genes, genetic variation, and heredity specifically in plants. [1] [2] It is generally considered a field of biology and botany, but intersects frequently with many other life sciences and is strongly linked with the study of information systems.
Gene flow is the exchange of genes between populations, which are usually of the same species. [32] Examples of gene flow within a species include the migration and then breeding of organisms, or the exchange of pollen. Gene transfer between species includes the formation of hybrid organisms and horizontal gene transfer.
Habitat fragmentation decreases the size and increases plant populations' spatial isolation. With genetic variation and increased methods of inter-population genetic divergence due to increased effects of random genetic drift, elevating inbreeding and reducing gene flow within plant species. While genetic variation may decrease with remnant ...
However, if they are selectively advantageous, gene flow should allow the alleles to spread throughout both populations. [49] To prevent this, the alleles would have to be deleterious or neutral. [3]: 371 This is not without problems, as gene flow from the presumably large allopatric regions could overwhelm the area when two populations overlap.