...Rannyele P. Ribeiro; B. Duygu Özpolat Gametogenesis is the process by which germ cells differentiate into mature sperm and oocytes, cells essential for sexual reproduction. The sex-specific molecular programs that drive spermatogenesis and oogenesis can also serve as sex identification markers...

... ovarian maturation and promotes the vitellogenesis-previtellogenesis switch in the fat body of adult female cockroaches. Our findings deepen the understanding of the roles of E93 in controlling reproduction in insects, and of E93 expression and functional evolution, which are proposed to have made crucial...

... chemistry Lipids Lipoprotein Scavenger receptor Reproduction Deutsche Forschungsgemeinschaft http://dx.doi.org/10.13039/501100001659 417982926 Scavenger receptors (SR) are a family of transmembrane proteins that are structurally diverse and have a wide range of ligands. They were...

.../genetics.115.180208 Practice Committee of the American Society for Reproductive Medicine , Penzias , A. , Azziz , R. , Bendikson , K. , Falcone , T. , Hansen , K. , Hill , M. , Jindal , S. , Kalra , S. , Mersereau , J. et al. ( 2021 ). Obesity...

... for reproduction, but how this is achieved is unclear. Here, we show that canonical wingless-type MMTV integration site family (WNT) signaling is pivotal for pre-granulosa cell (pre-GC) activation during PFA. We identified several WNT ligands expressed in pre-GCs that act in an autocrine manner. Inhibition of WNT...

...Laura Woods; Natasha Morgan; Xiang Zhao; Wendy Dean; Vicente Perez-Garcia; Myriam Hemberger ABSTRACT Reproductive decline in older female mice can be attributed to a failure of the uterus to decidualise in response to steroid hormones. Here, we show that normal decidualisation is associated...

...Amanda Rodriguez; Shawn M. Briley; Bethany K. Patton; Swamy K. Tripurani; Kimal Rajapakshe; Cristian Coarfa; Aleksander Rajkovic; Alexandra Andrieux; Anne Dejean; Stephanie A. Pangas ABSTRACT The number and quality of oocytes within the ovarian reserve largely determines fertility and reproductive...

...Daniela R. Chavez; Angela K. Snow; Joseph R. Smith; Gillian M. Stanfield ABSTRACT The development of highly differentiated sperm cells that are specialized for navigating to and fusing with an oocyte is essential for sexual reproduction. As a major part of differentiation, sperm undergo extensive...

...-microtubule interactions, ensuring proper spindle morphology and accurate chromosome movement during oocyte maturation. Oocyte Meiosis Cytoskeleton Chromosome Reproduction Bub1b National Natural Science Foundation of China 10.13039/501100001809 31771660 31401227 Fundamental...

... ortholog of yeast Sir2, and is involved in many metabolic pathways in somatic tissues. Whole body deletion of SirT1 alters reproductive function in oocytes and the testes, in part caused by defects in central neuro-endocrine control. To study the function of SirT1 specifically in the male germ line, we...

..., where they control reproduction. The molecular cues that guide their migration have not been fully identified, but are thought to control either cell movement directly or the patterning of their axonal substrates. Using genetically altered mouse models we show that the migration of GnRH neurons...

...Venkatesan Sundaresan; Monica Alandete-Saez Plant reproduction involves gamete production by a haploid generation, the gametophyte. For flowering plants, a defining characteristic in the evolution from the ‘naked-seed’ plants, or gymnosperms, is a reduced female gametophyte, comprising just seven...

... confirmed by RNA blots thus far. In situ hybridization experiments with 11 of these genes showed they were sex-differentially expressed only in internal genital organs. The nature of the products these genes encode provides insight into the molecular physiology of these reproductive tissues. Analysis...

... the conversion of sphingosine-1-phosphate to ethanolamine phosphate and a fatty aldehyde. We report the cloning of the Drosophila sphingosine-1-phosphate lyase gene ( Sply ) and demonstrate its importance for adult muscle development and integrity, reproduction and larval viability. Sply expression is temporally...

... Reproduction Exine CER mutants Cell recognition plays a key role in biology: cells of the immune system can identify foreign invaders, targeted cell migrations are essential for animal development, and gametes bind in a species-specific manner. Here we characterized the nature of cell recognition...

... 1997 © 1997 by Company of Biologists 1997 Arabidopsis reproduction ovule pollen cell guidance cell signaling Long range guidance of cells to their targets is a common theme in metazoan development. Examples include the homing of pollen tubes ( Heslop-Harrison, 1987 ; Lord...

...Linda L. Runft; Dina F. Mandoli ABSTRACT Amputated apices from vegetative wildtype cells of the uninucleate green alga Acetabularia acetabulum can differentiate a reproductive structure or ‘cap’ in the absence of the nucleus (Hämmerling, J. (1932) Biologisches Zentral-blatt 52, 42-61). To define...