辐照对光肩星天牛交配能力的影响

EFFECTS OF IRRADIATION ON MATING ABILITY OF Anoplophora glabripennis

光肩星天牛 (A .glabripennis)的精子在羽化后 1 0～ 1 4d发育成熟并在精巢中开始活动。一个有核精子和一个无核精子联合在一起组成一个正常的成熟精子 ,其中无核精子的功能是帮助有核精子游动。辐射对精子传导没有影响 ,然而对精子活力有一定的影响。纱笼试验条件下 ,不同交配类型的交配次数总体上趋向于概率预测值。纱笼试验条件下释放的辐照光肩星天牛有效抑制了正常光肩星天牛的生殖 。

Sperm of long horned beetles (LHBs), A. glabripennis , developed into mature form and became active in testes 10 14 days after emergency. A eupyrene sperm and an apyrene sperm combined together forming a normal mature sperm, and the function of apyrene sperm was helping eupyrene sperm to swim. Irradiation had no influences on sperm transfer, but had some negative influences on sperm activity. Under the cage condition, mating frequencies of different mating types were approximately accorded with the value calculated by probability. Released irradiated LHBs effectively suppressed the reproduction of normal LHBs in releasing cage. Irradiation had no evident influences on mating competitive ability of released LHBs under field cage condition.