但是上万种旧品种和野生亲缘则随着土地利用的改变，全球变暖以及随机因素自生自灭。
But hundreds of thousands of older varieties and wild relatives are left to the vagaries of land-use change, global warming and chance.
例如，对植物而言，栽培品种的新特性可能会偶然转移到其野生亲缘品种中去。
With plants, for instance, there is always the possibility that new traits could be accidentally transferred to wild relatives of domestic species.
作物的野生亲缘可以更好地适应严厉的气候条件，但是收集和繁殖这种作物的努力才刚刚开始。
Wild relatives of crops could be better suited to harsher climes, but efforts to collect and breed such crops are just beginning.
结论同种植物不同居群间亲缘关系的远近与地理来源有关；能够通过聚类分析区分姜黄和川郁金；姜黄属郁金类植物的栽培型和野生型产生了分化。
Clustering approach could make a distinction between Curcuma longa and C. sichuanensis. The differentiation has happened between the wild and cultivated species of Curcuma L.
与野生种的亲缘关系较远。同工酶分析的结果可供甘蔗分类和杂交亲本选择参考。
These results suggest that isozyme analysis could provide evidences for classification and bases for decision of the parents used before crossing in sugarcane.
与野生种的亲缘关系较远。同工酶分析的结果可供甘蔗分类和杂交亲本选择参考。
These results suggest that isozyme analysis could provide evidences for classification and bases for decision of the parents used before crossing in sugarcane.
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