Post-embryonic development of the female reproductive system of the Neotropical termite Silvestritermes euamignathus (Isoptera: Termitidae: Syntermitinae)

Autor(es)

da Silva, Luiza Helena Bueno ; Teixeira, Julia Ayumi Ando ; Laranjo, Lara Teixeira ; Costa-Leonardo, Ana Maria ; Vargo, Edward L. ; Haifig, Ives

• Tipo de documento: Artigo Científico
• Fonte: ARTHROPOD STRUCTURE & DEVELOPMENT; v. 71, p. 9-pg., 2022-10-21.

Resumo

In termites, the maturation of the female reproductive system is progressive following post-embryonic development. In Silvestritermes euamignathus, the imaginal line is characterized by five nymphal in -stars that develop into the imago, but it can deviate in some instars to neotenic reproductives. In order to understand the rate of development of the female reproductive system throughout post-embryonic development, we analyzed the morphology of the reproductive system of nymphs, characterizing the stage of development and comparing it with neotenics and primary queens. We also followed embryonic development and compared eggs from neotenics and primary queens from incipient and mature col-onies. Our results showed that gonadal development follows the post-embryonic instars, and pre-vitellogenic oocytes are present in third-instar nymphs and are retained for the next two successive nymphal instars. The full maturation of the ovaries with vitellogenic oocytes requires molting to either imagos or neotenics. Eggs from neotenics follow the same embryonic development and each stage presents similar volume when compared to those of mature primary queens. Eggs of primary queens from incipient colonies are greater in volume than those of mature primary queens and of neotenics, suggesting an investment in egg quality rather than quantity during colony foundation. (c) 2022 Elsevier Ltd. All rights reserved. (AU)

• Processo FAPESP: 12/23898-0 - Manipulação da reprodução em cupins com ênfase nas estratégias via neotênicos
• Beneficiário: Ives Haifig
• Modalidade de apoio: Bolsas no Brasil - Pós-Doutorado
• Processo FAPESP: 11/10590-4 - Morfologia funcional e dinâmica do aparelho genital em reprodutores machos de cupins com ênfase nas vesículas seminais
• Beneficiário: Lara Teixeira Laranjo
• Modalidade de apoio: Bolsas no Brasil - Doutorado