摘要
棕尾别麻蝇Boettcherisca peregrina初产幼虫喂饲含不同浓度Cd2+的饲料直至化蛹时,其亲代的生存、生长发育与繁殖受到了显著的影响.Cd2+处理浓度越高,亲代幼虫、蛹和雌雄成虫的体重越轻,幼虫和蛹的体长越短,化蛹率、羽化率、交配率和产仔量越低,幼虫历期和蛹期越长,成虫寿命越短.但Cd2+处理对成虫性比则无显著的影响.相比之下,经Cd2+处理后雌虫所产的子代若不再经受Cd2+处理时,子代生存、生长发育与繁殖则基本不受影响,说明Cd2+对亲代的影响不能传递至子代.此外,探讨了该蝇亲代与子代体内Cd2+含量在其变态过程中的变化规律.
The survival, growth and development as well as reproduction of Boettcherisca peregrina （Diptera： Sarcophagidae） in the parental generation were significantly influenced as newly oviposited larvae were exposed to various concentration of Cd^2＋ administered in the artificial diet until pupation. With increasing of Cd^2＋ concentration, the weight of larvae, pupae and adults become lighter, the length of larvae and pupae turned shorter, the percentages of pupation, emergence, mating and the fecundity were reduced, the duration of larvae and pupae were prolonged, and the life span of adults were shortened. However, cadmium effect on the sex ratio was not marked. In contrast, the survival, growth and development as well as reproduction of B. peregrine in the first filial generation unexposed to Cd^2＋ were almost not markedly affected in spite of the fact that their parental generation had previously been exposed to Cd^2＋. Thus, it is clear that cadmium effects on the parental generation of this fly cannot be transferred to its next generation. In addition, change in Cd^2＋ content of the fly during metamorphosis both in the parental generation and the first filial generation were also determined.
出处
《浙江大学学报（农业与生命科学版）》
CAS
CSCD
北大核心
2006年第1期71-76,共6页
Journal of Zhejiang University:Agriculture and Life Sciences
基金
国家自然科学基金重点资助项目(30230070)
关键词
棕尾别麻蝇
镉
生长发育
繁殖
Boettcherisca peregrina
cadmium
development
reproduction
