interbreeding
[ˌɪntə'bri:dɪŋ]
v.
（使）异种交配，（使）混种，（使）杂种繁殖( interbreed的现在分词 );
自群育种;
例句:
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But for species cohabiting the same area, interbreeding barriers seem to evolve quicker.
来自SA
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Gene flow The movement of alleles within and between populations of the same species through interbreeding.
基因流动:同一种群内由于杂交或种内选择使某一等位基因在该种群内扩散.
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A local, usually stable population of interbreeding organisms of the same kind or species.
他说地区的种群或居群是某一地区具有潜在杂交能力的个体的集群.
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Interbreeding has further watered down its numbers.
来自THETIMES
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This interbreeding or hybridisation threatens the future existence of pure Scottish wildcats, Felis silvestris grampia.
来自BBC