Results 1 to 10 of about 54,152 (260)

Molecular genetics of oogenesis in Drosophila melanogaster

open access: greenInvertebrate Survival Journal, 2004
Gonadal development requires complex differentiation programs leading to the production of functional female and male gametes. Upon fertilization, while the male germ cell contributes to the newly formed zygote only its genetic material, the female germ ...
S Gigliotti   +4 more
doaj   +2 more sources

Stage Specific Transcriptomic Analysis and Database for Zebrafish Oogenesis

open access: yesFrontiers in Cell and Developmental Biology, 2022
Oogenesis produces functional eggs and is essential for fertility, embryonic development, and reproduction. The zebrafish ovary is an excellent model to study oogenesis in vertebrates, and recent studies have identified multiple regulators in oocyte ...
Yoel Bogoch   +9 more
doaj   +1 more source

The strength and timing of the mitochondrial bottleneck in salmon suggests a conserved mechanism in vertebrates [PDF]

open access: yes, 2011
In most species mitochondrial DNA (mtDNA) is inherited maternally in an apparently clonal fashion, although how this is achieved remains uncertain.
Gemmell, Neil J.   +4 more
core   +10 more sources

Microinjection Method for Analyzing Zebrafish Early Stage Oocytes

open access: yesFrontiers in Cell and Developmental Biology, 2021
Maternal factors which accumulate and establish oocyte polarity during the early stages of oogenesis play key roles in embryonic development, as well as germ cell formation. However, vertebrate oogenesis, especially early stages of oogenesis, is not well
Manami Kobayashi   +2 more
doaj   +1 more source

Prp22 and spliceosome components regulate chromatin dynamics in germ-line polyploid cells. [PDF]

open access: yesPLoS ONE, 2013
During Drosophila oogenesis, the endopolyploid nuclei of germ-line nurse cells undergo a dramatic shift in morphology as oogenesis progresses; the easily-visible chromosomes are initially polytenic during the early stages of oogenesis before they ...
Stephen Klusza   +4 more
doaj   +1 more source

Fertility loss: negative effects of environmental toxicants on oogenesis

open access: yesFrontiers in Physiology, 2023
There has been a global decline in fertility rates, with ovulatory disorders emerging as the leading cause, contributing to a global lifetime infertility prevalence of 17.5%.
Xiaoxi Yao   +8 more
doaj   +1 more source

Spatio-temporal patterns of ovarian development and VgR gene silencing reduced fecundity in parthenogenetic Artemia

open access: yesOpen Biology, 2023
The halophilic zooplankton brine shrimp Artemia has been used as an experimental animal in multidisciplinary studies. However, the reproductive patterns and its regulatory mechanisms in Artemia remain unclear.
Hu Duan   +9 more
doaj   +1 more source

Isoflurane impairs oogenesis through germ cell apoptosis in C. elegans

open access: yesScientific Reports, 2021
Anesthetic isoflurane has been reported to induce toxicity. However, the effects of isoflurane on fecundity remain largely unknown. We established a system in C. elegans to investigate the effects of isoflurane on oogenesis.
Tao Zhang   +8 more
doaj   +1 more source

New Mutations in the 5′ Region of the Notch Gene Affect Drosophila melanogaster Oogenesis

open access: yesJournal of Developmental Biology, 2022
The Notch pathway is an important and evolutionarily conserved signaling system involved in the development of multicellular organisms. Notch signaling plays an important role in the regulation of proliferation and differentiation of many cell types.
Elena I. Volkova   +4 more
doaj   +1 more source

Dynamics of maternal gene expression in Rhodnius prolixus

open access: yesScientific Reports, 2022
The study of developmental processes in Rhodnius prolixus has recently advanced with the sequencing of the genome. In this work, we analyze the maternal gene expression driving oogenesis and early embryogenesis in R. prolixus.
Agustina Pascual, Rolando Rivera-Pomar
doaj   +1 more source

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