俄勒冈大学和俄勒冈州立大学的研究人员对中美洲的切叶蚁进行了研究,他们发现,蚁群中的年轻和精力充沛的成员被委派去做最艰难的工作——将蚁群收集起来的叶片切成碎片。这些身强力壮的切叶蚁用它们锐利的牙齿做起这种工作来很有效率,但是随着年龄的增长,它们的牙齿也会变得破旧而迟钝。
A study of Central American leaf-cutter ants has shown that the younger and more vigorous members of the colony are given the toughest job of cutting through the leaves they harvest.
用卷叶突变体与粳稻中花11杂交,获得杂交F1群体以及自交F2群体。
The mutant was crossed with japonica cultivar Zhonghua 11 to establish F1 and F2 populations.
用卷叶突变体与粳稻中花11杂交,获得杂交F1群体以及自交F2群体。
The mutant was crossed with japonica cultivar Zhonghua 11 to establish F1 and F2 populations.
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