Effects of X-ray irradiation on male sperm transfer ability and fertility in the sweetpotato weevils Euscepes postfasciatus (Coleoptera: Curculionidae) and Cylas formicarius (Coleoptera: Brentidae)

Effects of X-ray irradiation on male sperm transfer ability and fertility in the sweetpotato weevils Euscepes postfasciatus (Coleoptera: Curculionidae) and Cylas formicarius (Coleoptera: Brentidae)
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X射线照射对甘薯象甲Euscepes postfasciatus(鞘翅目:象甲科)和Cylas formicarius(鞘翅目:象甲科)雄性精子转移能力和生育力的影响

DOI:
10.1007/s13355-018-0578-4
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发表时间:
2018
影响因子:
1.3
通讯作者:
Tsurui-Sato Kaori
Tsurui-Sato Kaori
中科院分区:
农林科学3区
文献类型:
--
作者:
Kumano Norikuni;Haraguchi Dai;Tsurui-Sato Kaori

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来自同位素源的伽马辐射已在世界范围内用于昆虫不育技术(SIT)计划,但由于社会问题,在未来的SIT计划中可能难以继续使用这些源。因此,需要开发伽马射线的替代灭菌源,例如X射线。伽马射线和X射线的辐射物理性质不同:例如,X射线的穿透深度比伽马射线短。因此,X射线可能不会完全赋予雄性不育,这取决于目标害虫。本研究调查是否西印度甘薯weevilEuscepes postfasciatus(Fairmaire)和甘薯weevilCylas formicarius(Fabricius)灭菌的X射线产生的低能量X射线辐照器,没有恶化的男性交配能力,在目前使用的剂量在根除计划为E。postfasciatus(150戈伊)和C.在日本冲绳使用伽马射线对蚁壳虫(200戈伊)进行的放射性照射。结果表明,它是可能的,在未来的SIT程序中使用X射线为E。postfasciatusandC.蚁蛉,因为X射线照射的男性几乎完全绝育,而不恶化他们的交配能力。
Gamma radiation from isotopic sources has been used in sterile insect technique (SIT) programs worldwide, but it might be difficult to continue using these sources in future SIT programs because of social issues. Therefore, an alternative sterilization source to gamma rays, such as X-rays, needs to be developed. The physical properties of radiation are different between gamma rays and X-rays: for example, X-rays have a shorter penetration depth than gamma rays. Therefore, X-rays may not fully confer male sterility, depending on the target pest insects. The present study investigated whether the West-Indian sweetpotato weevilEuscepes postfasciatus(Fairmaire) and the sweetpotato weevilCylas formicarius(Fabricius) are sterilized by X-rays generated in a low-energy X-ray irradiator, without deterioration of male mating ability, at the doses currently used in the eradication programs forE. postfasciatus(150 Gy) andC. formicarius(200 Gy) using gamma rays at Okinawa, Japan. The results demonstrated that it is possible to use X-rays in future SIT programs forE. postfasciatusandC. formicarius, because X-ray irradiated males were almost completely sterilized without deterioration of their mating ability.
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