Evolutionary analyses of non-genealogical bonds produced by introgressive descent.

ABSTRACT: All evolutionary biologists are familiar with evolutionary units that evolve by vertical descent in a tree-like fashion in single lineages. However, many other kinds of processes contribute to evolutionary diversity. In vertical descent, the genetic material of a particular evolutionary unit is propagated by replication inside its own lineage. In what we call introgressive descent, the genetic material of a particular evolutionary unit propagates into different host structures and is replicated within these host structures. Thus, introgressive descent generates a variety of evolutionary units and leaves recognizable patterns in resemblance networks. We characterize six kinds of evolutionary units, of which five involve mosaic lineages generated by introgressive descent. To facilitate detec

SUBMITTER: Bapteste E 

PROVIDER: S-EPMC3494893 | biostudies-literature | 2012 Nov

REPOSITORIES: biostudies-literature