Introgression (introgressive hybridization) The introduction of genetic material from one gene pool to another by hybridization and subsequent back-crossing to one or other of the parents.
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- 渐渗现象(渐渗杂交):是通过杂交或其后代与某个亲本回交,遗传物质从一个基因库被引入另一个基因库的现象。