Results 31 to 40 of about 36,504 (227)

The dynamic landscape of gene regulation during Bombyx mori oogenesis

BMC Genomics, 2017
Background Oogenesis in the domestic silkworm (Bombyx mori) is a complex process involving previtellogenesis, vitellogenesis and choriogenesis. During this process, follicles show drastic morphological and physiological changes.
Qiang Zhang, Wei Sun, Bang-Yong Sun, Yang Xiao, Ze Zhang   +4 more
doaj   +1 more source

Subcellular localization and Egl-mediated transport of telomeric retrotransposon HeT-A ribonucleoprotein particles in the Drosophila germline and early embryogenesis. [PDF]

PLoS ONE, 2018
The study of the telomeric complex in oogenesis and early development is important for understanding the mechanisms which maintain genome integrity. Telomeric transcripts are the key components of the telomeric complex and are essential for regulation of
Maria Kordyukova, Valeriya Morgunova, Ivan Olovnikov, Pavel A Komarov, Anastasia Mironova, Oxana M Olenkina, Alla Kalmykova   +6 more
doaj   +1 more source

RNAi-based screens uncover a potential new role for the orphan neuropeptide receptor Moody in Drosophila female germline stem cell maintenance.

PLoS ONE, 2020
Reproduction is highly sensitive to changes in physiology and the external environment. Neuropeptides are evolutionarily conserved signaling molecules that regulate multiple physiological processes.
Tianlu Ma, Shinya Matsuoka, Daniela Drummond-Barbosa   +2 more
doaj   +1 more source

LSM14B is an Oocyte‐Specific RNA‐Binding Protein Indispensable for Maternal mRNA Metabolism and Oocyte Development in Mice

Advanced Science, 2023
Mammalian oogenesis features reliance on the mRNAs produced and stored during early growth phase. These are essential for producing an oocyte competent to undergo meiotic maturation and embryogenesis later when oocytes are transcriptionally silent.
Hui Li, Hailian Zhao, Chunhui Yang, Ruibao Su, Min Long, Jinliang Liu, Lanying Shi, Yuanchao Xue, You‐Qiang Su   +8 more
doaj   +1 more source

Drosophila p53 isoforms have overlapping and distinct functions in germline genome integrity and oocyte quality control

eLife, 2022
p53 gene family members in humans and other organisms encode a large number of protein isoforms whose functions are largely undefined. Using Drosophila as a model, we find that a p53B isoform is expressed predominantly in the germline where it ...
Ananya Chakravarti, Heshani N Thirimanne, Savanna Brown, Brian R Calvi   +3 more
doaj   +1 more source

Asymmetric Divisions in Oogenesis

, 2017
In the majority of animals, the oocyte/egg is structurally, molecularly, and functionally asymmetric. Such asymmetry is a prerequisite for a flawless fertilization and faithful segregation of maternal determinants during subsequent embryonic development.
Bilinski, Szczepan M., Kubiak, Jacek Z., Kloc, Malgorzata   +2 more
openaire   +3 more sources

Blood feeding activates the vitellogenic stage of oogenesis in the mosquito Aedes aegypti through inhibition of glycogen synthase kinase 3 by the insulin and TOR pathways

Developmental Biology, 2019
Most mosquitoes, including Aedes aegypti, only produce eggs after blood feeding on a vertebrate host. Oogenesis in A. aegypti consists of a pre-vitellogenic stage before blood feeding and a vitellogenic stage after blood feeding.
L. Valzania, Melissa T Mattee, M. Strand, Mark R. Brown   +3 more
semanticscholar   +1 more source

Unscrambling butterfly oogenesis [PDF]

BMC Genomics, 2013
AbstractBackgroundButterflies are popular model organisms to study physiological mechanisms underlying variability in oogenesis and egg provisioning in response to environmental conditions. Nothing is known, however, about; the developmental mechanisms governing butterfly oogenesis, how polarity in the oocyte is established, or which particular ...
Carter, J-M, Baker, S, Pink, R, Carter, D, Collins, A, Tomlin, J, Gibbs, M, Breuker, C   +7 more
openaire   +4 more sources

Small RNA pathways in mammalian oocytes

FEBS Open Bio, EarlyView.
Three distinct small RNA pathways operate in mammalian oocytes: RNAi interference (RNAi), the microRNA (miRNA) pathway, and the PIWI‐associated RNA (piRNA) pathway. These pathways use small RNAs to guide sequence‐specific repression and contribute to oocyte biology by targeting genes and mobile elements or appear insignificant since different ...
Petr Svoboda, Josef Pasulka
wiley   +1 more source

Molecular control of oogenesis.

Biochimica et Biophysica Acta (BBA) - Molecular Basis of Disease, 2012
Oogenesis is a complex process regulated by a vast number of intra- and extra-ovarian factors. Oogonia, which originate from primordial germ cells, proliferate by mitosis and form primary oocytes that arrest at the prophase stage of the first meiotic division until they are fully-grown.
Flor Sanchez, J. Smitz
semanticscholar   +4 more sources