用一种植物的总基因组dna与近缘或远缘物种的染色体杂交，可以研究植物近缘或远缘物种基因组进化关系。
The comparative analysis of genomic evolution between closely or distantly related species has been analyzed by a genomic DNA cross-hybridized with other species.
远缘杂交是许多天然植物种群的一个显著特性，其结果往往是通过多倍体化或者在二倍体水平上形成新物种。
Hybridization is a prominent feature of natural plant populations, and one that often leads to speciation, either through polyploidization or at the diploid level.
远缘杂交是创造新物种、新种质以及转移异源遗传物质的有效途径，在理论和实践上都具有重要意义。
Wide cross was an effective method creating new species, new germplasm and transfering exogenous gene, it had important significance in theories and practices.
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