Ad
related to: evolutionary genetics examples in real life about intersecting lines
Search results
Results From The WOW.Com Content Network
An evolutionary lineage is a temporal series of populations, organisms, cells, or genes connected by a continuous line of descent from ancestor to descendant. [1] [2] Lineages are subsets of the evolutionary tree of life. Lineages are often determined by the techniques of molecular systematics.
Phylogenetic network depicting reticulate evolution: Lineage B results from a horizontal transfer between its two ancestors A and C (blue, dotted lines). Reticulate evolution, or network evolution is the origination of a lineage through the partial merging of two ancestor lineages, leading to relationships better described by a phylogenetic ...
An introgression line (IL) is a crop species that contains genetic material artificially derived from a wild relative population through repeated backcrossing. An example of a collection of ILs (called an IL-Library ) is the use of chromosome segments from Solanum pennellii (a wild species of tomato ) that was introgressed into Solanum ...
Evolutionary biology – Study of the evolution of life Evolutionary developmental biology – Comparison of organism developmental processes; Genetics – Science of genes, heredity, and variation in living organisms; Biogeography – Study of distribution of species; Ecological genetics – Study of genetics in natural populations ...
Parallel evolution is the similar development of a trait in distinct species that are not closely related, but share a similar original trait in response to similar evolutionary pressure. [ 1 ] [ 2 ] Parallel vs. convergent evolution
A large body of molecular evidence supports a variety of mechanisms for large evolutionary changes, including: genome and gene duplication, which facilitates rapid evolution by providing substantial quantities of genetic material under weak or no selective constraints; horizontal gene transfer, the process of transferring genetic material to ...
A genetic lineage includes all descendants of a given genetic sequence, typically following a new mutation. It is not the same as an allele because it excludes cases where different mutations give rise to the same allele, and includes descendants that differ from the ancestor by one or more mutations .
Convergent evolution—the repeated evolution of similar traits in multiple lineages which all ancestrally lack the trait—is rife in nature, as illustrated by the examples below. The ultimate cause of convergence is usually a similar evolutionary biome , as similar environments will select for similar traits in any species occupying the same ...