crossbreeding

基本解释

After ten years of painstaking crossbreeding, he isolated a gene, Sr31 (Sr for stem rust) that resisted P. graminis.
经过十年痛苦的杂交培育，他分离出了抵抗小麦锈病Sr31（Sr指茎锈病）基因。
The fate of the isolated species now rests entirely in a crossbreeding program with the closely related Idaho pygmy rabbit.
现在，哥伦比亚盆地侏儒兔的命运如何完全依靠于科学家们实施的一项杂交繁育计划。为了能最大程度地挽救这一物种，科学家让哥伦比亚盆地侏儒兔与和自己关系紧密的爱达荷侏儒兔进行杂交，让其血统延续下来。
In the medium term, conventional crossbreeding helped by molecular biology techniques (a technique called "marker assisted breeding") may suffice.
在中期，通过分子生物学技术辅助的常规杂交育种（分子标记辅助育种）就足以满足要求了。

This was done by crossbreeding different kinds of wheat to make stronger, more resistant ones.

For species, adaptations to novel environments and the need to avoid crossbreeding with those on the other side of the split are both plausible hypotheses.
ECONOMIST: Linguistic evolution: Received pronunciation The
Some suspect the change has something to do with the evolution in how foods are grown and produced, like the crossbreeding of wheat or the use of antibiotics in cattle.
NPR: Study: Food, Skin Allergies Increasing In Children