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Akt regulates the fertility of Coridius chinensis by insulin signaling pathway.
Sci Rep
November 2024
Guizhou Provincial Key Laboratory for Agricultural Pest Management of Mountainous Regions, Institute of Entomology, Guizhou University, 550025, Guizhou, China.
Article Synopsis
- Akt, a crucial protein in the insulin signaling pathway, was cloned and characterized from Coridius chinensis (CcAkt), revealing its potential role in reproduction.
- The gene encodes 520 amino acids and shows high expression levels in female adults and certain developmental stages, influenced by hormones like insulin and methoprene.
- Knockdown of CcAkt in unmated females led to reduced expression of reproductive-related genes and negatively impacted ovary development, egg production, and hatch rates, indicating its regulatory role in reproduction.
GASZ is indispensable for gametogenesis in the silkworm, Bombyx mori.
Insect Mol Biol
December 2024
Jiangsu Key Laboratory of Sericultural Biology and Biotechnology, School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang, China.
The prominent role of the P-element induced wimpy testis (PIWI)-interacting RNA (piRNA) pathway in animals is to silence transposable elements and maintain genome stability, ensuring proper gametogenesis in gonads. GASZ (Germ cell protein with Ankyrin repeats, Sterile alpha motif, and leucine Zipper) is an evolutionarily conserved protein located on the outer mitochondrial membrane of germ cells and plays vital roles in the piRNA pathway and spermatogenesis in mammals. In the model insect Drosophila melanogaster, GASZ is essential for piRNA biogenesis and oogenesis, whereas its biological functions in non-drosophilid insects are still unknown.
View Article and Find Full Text PDFExploring the role of the ovary-serine protease gene in the female fertility of the diamondback moth using CRISPR/Cas9.
Pest Manag Sci
July 2024
State Key Laboratory of Ecological Pest Control for Fujian/Taiwan Crops and College of Life Science, Fujian Agriculture and Forestry University, Fuzhou, China.
Background: Oogenesis is a complex pathway necessary for proper female reproduction in insects. Ovary-serine protease (Osp) is a homologous gene of serine protease Nudel (SpNudel) and plays an essential role in the oogenesis and ovary development of Drosophila melanogaster. However, the function of Osp is not determined in Plutella xylostella, a highly destructive pest of cruciferous crops.
View Article and Find Full Text PDFFunctional characteristics of Dicer genes in Plutella xylostella.
Pest Manag Sci
April 2024
State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Institute of Applied Ecology, Fujian Agriculture and Forestry University, Fuzhou, China.
Background: Dicer is an endonuclease that belongs to the RNase III family and can specifically recognize and cleave double-stranded RNA (dsRNA). In most insects, there are two Dicer genes, Dicer-1 (Dcr-1) and Dicer-2 (Dcr-2), which are involved in the micro-RNA and small-interfering RNA pathways in many species, respectively. The function of Dicer in Plutella xylostella remains unknown.
View Article and Find Full Text PDFMorphology of the Female and Male Reproductive Tracts and More Data on the Spermatostyle in the Brazilian Gyretes sp. (Coleoptera, Adephaga, Gyrinidae).
Microsc Microanal
December 2023
Departamento de Biologia Geral, Universidade Federal de Viçosa, Viçosa, 36570-900 Minas Gerais, Brazil.
We investigated the male and female reproductive tracts of Gyretes sp. with light and transmission electron microscopies. The male has a pair of testes with a single coiled follicle, followed by short efferent ducts, which have a similar shape and diameter to the testes.
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