Molecular Understanding of Insect Reproductive Biology

A special issue of Insects (ISSN 2075-4450). This special issue belongs to the section "Insect Molecular Biology and Genomics".

Deadline for manuscript submissions: closed (30 June 2023) | Viewed by 2851

Special Issue Editors


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Guest Editor
School of Life Sciences, Central China Normal University, Wuhan 430079, China
Interests: Drosophila; spermatogenesis; oogenesis; fertilization; embryogenesis

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Guest Editor
Provincial Key Laboratory for Agricultural Pest Management of Mountainous Region, Institute of Entomology, Guizhou University, Guiyang 550025, China
Interests: insect reproductive regulation; insecticide stress; sublethal effect; insect molting development; chitin; juvenile hormone
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Special Issue Information

Dear Colleagues,

Gametogenesis and fertilization are both the end and the beginning of the circle of life. The sperm and egg are highly specialized cells, and only they can transmit the instructions for making an organism from one generation to the next. How do these germ cells arise? How do the haploid sperm and egg contact each other and fuse together? How does an undifferentiated cell (fertilized egg) develop to be an active organism composed by many various cells? What are the instructions in the nucleus and cytoplasm that allow them to form the new organism? How does the complex environment (including bacteria) affect animal reproduction? This Special Issue of Insects welcomes a wide variety of articles on these questions. Research showing the molecular mechanisms of mating behavior, reproductive competition, or sex determination is also very welcome.

Prof. Dr. Yu-Feng Wang
Prof. Dr. Hong Yang
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Insects is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • spermatogenesis
  • oogenesis
  • fertilization
  • embryogenesis
  • reproductive physiology
  • sex determination

Published Papers (1 paper)

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Research

12 pages, 2329 KiB  
Article
Cyromazine Effects the Reproduction of Drosophila by Decreasing the Number of Germ Cells in the Female Adult Ovary
by Muhammad Zaryab Khalid, Zhipeng Sun, Yaoyao Chen, Jing Zhang and Guohua Zhong
Insects 2022, 13(5), 414; https://doi.org/10.3390/insects13050414 - 27 Apr 2022
Cited by 4 | Viewed by 2178
Abstract
In the present study, we observed a 58% decrease in the fecundity of Drosophila melanogaster, after treatment with the cyromazine. To further elucidate the effects of cyromazine on reproduction, we counted the number of both germline stem cells (GSCs) and cystoblasts (CBs) [...] Read more.
In the present study, we observed a 58% decrease in the fecundity of Drosophila melanogaster, after treatment with the cyromazine. To further elucidate the effects of cyromazine on reproduction, we counted the number of both germline stem cells (GSCs) and cystoblasts (CBs) in the ovary of a 3-day-old adult female. The results showed a significant decrease in the number of GSCs and CBs as compared to the control group. The mode of action of cyromazine is believed to be through the ecdysone signaling pathway. To further support this postulate, we observed the expression of key genes involved in the ecdysone signaling pathway and also determined the ecdysone titer from cyromazine-treated ovaries. Results indicated a significant decrease in the expression of ecdysone signaling-related genes as compared to the control group. Furthermore, the titer of the ecdysone hormone was also markedly reduced (90%) in cyromazine-treated adult ovaries, suggesting that ecdysone signaling was directly related to the decrease in the number of GSCs and CBs. However, further studies are required to understand the mechanism by which cyromazine affects the GSCs and CBs in female adult ovaries. Full article
(This article belongs to the Special Issue Molecular Understanding of Insect Reproductive Biology)
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