Results 61 to 70 of about 29,477 (233)

Calpain Proteases and the Evolving Signaling Network in Insect Embryonic Patterning

Journal of Experimental Zoology Part B: Molecular and Developmental Evolution, EarlyView.
Insect embryonic Dorsal‐Ventral (DV) patterning relies on the BMP and Toll pathways to different extents. Calcium‐dependent cystein proteases of the Calpain family also exert an important function to pattern the DV axis. In Drosophila, Calpain A cleaves the Cactus/IkappaB inhibitor and modifies Toll signals in ventral regions of the embryo. In Rhodnius
Alison Julio, Helena Araujo
wiley   +1 more source

Oogenesis: Active Heterochromatin

, 2011
SummaryThe genome of Drosophila is protected from DNA damage during oogenesis by a mechanism involving short RNAs. Surprisingly transcription of these RNAs requires that their DNA is associated with a histone modification usually associated with gene ...
David J. Finnegan, Finnegan, David J.
core   +1 more source

Oogenesis, Folliculogenesis, and Ovulation

, 2022
Oocytes develop within distinct follicles in the cortex of the ovary during development. Prenatal follicles that have been dormant become active and go through progressive development at regular intervals starting in the late fetal period and continuing ...
*Bhakti Chavda and Prachi Sharma
core   +1 more source

Analysis of Gene Expression in Aedes aegypti Suggests Changes in Early Genetic Control of Mosquito Development

Journal of Experimental Zoology Part B: Molecular and Developmental Evolution, EarlyView.
ABSTRACT Aedes aegypti, a critical vector for tropical diseases, poses significant challenges for studying its embryogenesis due to difficulties in removing its rigid chorion and achieving effective fixation for in situ hybridization. Here, we present novel methodologies for fixation, dechorionation, DAPI staining, and in situ hybridization, enabling ...
Renata Coutinho‐dos‐Santos, Danielle Santos, Lupis Ribeiro, Jonathan J. Mucherino‐Muñoz, Marcelle Uhl, Carlos Logullo, A. Mendonça‐Amarante, M. Fantappie, Rodrigo Nunes‐da‐Fonseca   +8 more
wiley   +1 more source

Spatiotemporal dynamics of early oogenesis in pigs

Genome Biology
Background In humans and other mammals, the process of oogenesis initiates asynchronously in specific ovarian regions, leading to the localization of dormant and growing follicles in the cortex and medulla, respectively; however, the current ...
Wei Ge, Yi-Lin Niu, Yu-Kang Li, Li Li, Han Wang, Wen-Wen Li, Tian Qiao, Yan-Ni Feng, Yu-Qing Feng, Jing Liu, Jun-Jie Wang, Xiao-Feng Sun, Shun-Feng Cheng, Lan Li, Wei Shen   +14 more
doaj   +1 more source

A Genetic Mosaic Screen Reveals Ecdysone-Responsive Genes Regulating Drosophila Oogenesis

G3: Genes, Genomes, Genetics, 2016
Multiple aspects of Drosophila oogenesis, including germline stem cell activity, germ cell differentiation, and follicle survival, are regulated by the steroid hormone ecdysone.
Elizabeth T. Ables, Grace H. Hwang, Danielle S. Finger, Taylor D. Hinnant, Daniela Drummond-Barbosa   +4 more
doaj   +1 more source

Amphibians with infectious disease increase their reproductive effort: evidence for the terminal investment hypothesis [PDF]

Open Biology, 2016
Mounting an immune response to fight disease is costly for an organism and can reduce investment in another life-history trait, such as reproduction.
Laura A. Brannelly, Rebecca Webb, Lee F. Skerratt, Lee Berger   +3 more
doaj   +1 more source

Optical mapping reveals a higher level of large‐scale structural variants in a family with paternally transmitted myotonic dystrophy and independent Parkinson's disease

The Journal of Pathology, EarlyView.
Abstract Myotonic dystrophy type 1 (DM1) is a clinically challenging multisystem neuromuscular hereditary disorder, with generational increase in severity and earlier age at onset. It is caused by an unstable cytosine‐thymine‐guanine repeat expansion at the DMPK locus, accompanied by associated genetic and epigenetic modifications.
Md Mehedi Hasan, Jenna Craddock, Tingting Gong, Ruth J Lyons, Igor Stevanovski, Sanjog R Chintalaphani, Ira W Deveson, Weerachai Jaratlerdsiri, Kishore R Kumar, Vanessa M Hayes   +9 more
wiley   +1 more source

Calcitonin‐like diuretic hormone influences reproduction in adult female Rhodnius prolixus

Insect Science, EarlyView.
Highlights • CT/DH‐like immunoreactivity is present in female reproductive tissues • CT/DH receptor transcripts are expressed in the fat body and ovaries • RNAi knockdown of CT/DH receptors reduces egg number and hatching rate • Rhopr‐CT/DH increases RhoprVg1 and RhoprVgR expression in ovaries in vitro • Rhopr‐CT/DH stimulates oviduct contractions in a
Areej N. Al‐Dailami, Ian Orchard, Angela B. Lange   +2 more
wiley   +1 more source

LsFAMeT and LsJHAMT coordinate JH biosynthesis to regulate fecundity in Laodelphax striatellus

Insect Science, EarlyView.
The small brown planthopper (SBPH), Laodelphax striatellus, can trigger large‐scale outbreaks when encountering suitable habitats during migration due to their strong reproductive ability. This study investigated the role of juvenile hormone (JH) in regulating SBPH reproduction.
Yan Guo, Bing‐Bing Shi, Xue‐Qi Zhang, Qiong Yang   +3 more
wiley   +1 more source