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Adult feeding and host type modulate the life history traits of the capital breeder Zabrotes subfasciatus
Physiological Entomology ( IF 1.6 ) Pub Date : 2020-07-06 , DOI: 10.1111/phen.12329 Cindi P. Corrêa 1 , Bianca C. Capizzani 2 , Luiz A. Beijo 3 , Paulo M. Ávila 1 , Isabel Ribeiro do Valle Teixeira 1 , Angel R. Barchuk 2
Physiological Entomology ( IF 1.6 ) Pub Date : 2020-07-06 , DOI: 10.1111/phen.12329 Cindi P. Corrêa 1 , Bianca C. Capizzani 2 , Luiz A. Beijo 3 , Paulo M. Ávila 1 , Isabel Ribeiro do Valle Teixeira 1 , Angel R. Barchuk 2
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Income breeding animals support reproduction by the intake of energy and molecular building blocks during adulthood. Capital breeders, in contrast, fuel reproduction by the intake of materials during the larval stage. There exists, however, some controversy as to whether adult feeding in capital breeders actually increases fitness. We tested whether individuals feed as adults in the weevil Zabrotes subfasciatus Boheman, whether they equally accept carbohydrate‐ or nitrogen‐rich food (sugar or yeast), whether food ingestion varies with the available host type and whether feeding as adults alters life history traits. The hosts tested were three varieties of Phaseolus vulgaris, Carioca, Jalo, and Preto; Vigna unguiculata Frade; and Vicia faba. We also tested whether sugar ingestion affects life history traits differently in the presence of different host types. We found that Z. subfasciatus feed as adults and equally accept sugar and yeast, and food ingestion depends on host type. Sugar and yeast significantly promote oviposition of larger eggs on Carioca seeds and enhance adult emergence, and sugar ingestion increases longevity. Moreover, the insects avoid feeding when on V. faba seeds, on which they did not oviposit. Mean fitness values showed the following hierarchy: Carioca = Jalo > Frade > Preto > V. faba. These results show that the capital breeder Z. subfasciatus feed as adults, which increases life history traits and suggests the existence of a hierarchy of performance on different hosts, with the P. vulgaris varieties Carioca and Jalo offering the best conditions.
中文翻译：
成年饲养和寄主类型可调节主要育种者Zabrotes subfasciatus的生活史特征
收入繁殖动物通过在成年期间摄入能量和分子构件来支持繁殖。相比之下，资本育种者通过在幼体阶段摄取材料来促进繁殖。但是，关于成年育种家的成年饲喂是否真正提高健康度存在一些争议。我们测试了象鼻虫Zabrotes subfasciatus Boheman中成年人是否以成年人为食，是否同样接受碳水化合物或氮含量高的食物（糖或酵母），食物摄入是否随可用宿主类型而变化，以及成年人成年后是否改变生活史特征。测试的宿主是菜豆，木薯，Jalo和Preto的三种变种。Vigna unguiculata Frade; 和野豌豆。我们还测试了在不同宿主类型下，糖摄入是否会影响生活史特征。我们发现Z. subfasciatus成年后会进食，并且同样接受糖和酵母，食物的摄入取决于宿主的类型。糖和酵母可显着促进大种子在卵上的产卵，并增强成虫的出苗率，而糖的摄入则可延长寿命。此外，当昆虫在不产卵的蚕豆种子上时，它们避免进食。平均适应度值显示以下层次结构：Carioca = Jalo> Frade> Preto> V. faba。这些结果表明，资本繁殖者Z.subfasciatus成年后可以进食，这增加了生活史特征，并暗示了不同寄主的表现水平存在，而普通百日草品种Carioca和Jalo提供了最佳条件。
更新日期：2020-07-06
中文翻译：
成年饲养和寄主类型可调节主要育种者Zabrotes subfasciatus的生活史特征
收入繁殖动物通过在成年期间摄入能量和分子构件来支持繁殖。相比之下，资本育种者通过在幼体阶段摄取材料来促进繁殖。但是，关于成年育种家的成年饲喂是否真正提高健康度存在一些争议。我们测试了象鼻虫Zabrotes subfasciatus Boheman中成年人是否以成年人为食，是否同样接受碳水化合物或氮含量高的食物（糖或酵母），食物摄入是否随可用宿主类型而变化，以及成年人成年后是否改变生活史特征。测试的宿主是菜豆，木薯，Jalo和Preto的三种变种。Vigna unguiculata Frade; 和野豌豆。我们还测试了在不同宿主类型下，糖摄入是否会影响生活史特征。我们发现Z. subfasciatus成年后会进食，并且同样接受糖和酵母，食物的摄入取决于宿主的类型。糖和酵母可显着促进大种子在卵上的产卵，并增强成虫的出苗率，而糖的摄入则可延长寿命。此外，当昆虫在不产卵的蚕豆种子上时，它们避免进食。平均适应度值显示以下层次结构：Carioca = Jalo> Frade> Preto> V. faba。这些结果表明，资本繁殖者Z.subfasciatus成年后可以进食，这增加了生活史特征，并暗示了不同寄主的表现水平存在，而普通百日草品种Carioca和Jalo提供了最佳条件。
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