Results 61 to 70 of about 48,915 (171)

ALDH1A1 provides a source of meiosis-inducing retinoic acid in mouse fetal ovaries

Nature Communications, 2016
Substantial evidence exists that during fetal ovarian development in mammals, retinoic acid (RA) induces germ cells to express the pre-meiotic marker Stra8 and enter meiosis, and that these effects are prevented in the fetal testis by the RA-degrading ...
J. Bowles, C. Feng, K. Miles, Jessica Ineson, Cassy M. Spiller, P. Koopman   +5 more
semanticscholar   +1 more source

Diversity and abundance of the Abnormal chromosome 10 meiotic drive complex in Zea mays [PDF]

Heredity 110, 570-577 (June 2013), 2012
Maize Abnormal chromosome 10 (Ab10) contains a classic meiotic drive system that exploits asymmetry of meiosis to preferentially transmit itself and other chromosomes containing specialized heterochromatic regions called knobs. The structure and diversity of the Ab10 meiotic drive haplotype is poorly understood.
arxiv   +1 more source

The Rice AAA-ATPase OsFIGNL1 Is Essential for Male Meiosis

Frontiers in Plant Science, 2017
Meiosis is crucial in reproduction of plants and ensuring genetic diversity. Although several genes involved in homologous recombination and DNA repair have been reported, their functions in rice (Oryza sativa) male meiosis remain poorly understood. Here,
Peipei P. Zhang, Ying-xin Zhang, Lianping Sun, Sittipun Sinumporn, Zhengfu F. Yang, Bin Sun, Dandan D. Xuan, Zihe H. Li, P. Yu, Weixun Wu, Kejian Wang, Liyong Cao, Shihua Cheng   +12 more
semanticscholar   +1 more source

The cell cycle timing of centromeric chromatin assembly in Drosophila meiosis is distinct from mitosis yet requires CAL1 and CENP-C.

PLoS Biology, 2012
CENP-A (CID in flies) is the histone H3 variant essential for centromere specification, kinetochore formation, and chromosome segregation during cell division.
Elaine M Dunleavy, Nicole L Beier, Walter Gorgescu, Jonathan Tang, Sylvain V Costes, Gary H Karpen   +5 more
doaj   +1 more source

Mek1 Down Regulates Rad51 Activity during Yeast Meiosis by Phosphorylation of Hed1

PLoS Genetics, 2016
During meiosis, programmed double strand breaks (DSBs) are repaired preferentially between homologs to generate crossovers that promote proper chromosome segregation at Meiosis I.
Tracy L. Callender, Raphaëlle Laureau, Raphaëlle Laureau, Lihong Wan, Xiangyu Chen, Rima Sandhu, Saif Laljee, Sai Zhou, Raymond T. Suhandynata, Evelyn Prugar, W. Gaines, Youngho Kwon, G. Börner, A. Nicolas, A. Nicolas, A. Neiman, N. M. Hollingsworth   +16 more
semanticscholar   +1 more source

Dynamics and control of sister kinetochore behavior during the meiotic divisions in Drosophila spermatocytes. [PDF]

PLoS Genetics, 2018
Sister kinetochores are connected to the same spindle pole during meiosis I and to opposite poles during meiosis II. The molecular mechanisms controlling the distinct behavior of sister kinetochores during the two meiotic divisions are poorly understood.
Soumya Chaurasia, Christian F Lehner
doaj   +1 more source

Escape from crossover interference increases with maternal age [PDF]

, 2014
Recombination plays a fundamental role in meiosis, ensuring the proper segregation of chromosomes and contributing to genetic diversity by generating novel combinations of alleles. Using data derived from directUtoUconsumer genetic testing, we investigated patterns of recombination in over 4,200 families.
arxiv   +1 more source

Mps1 kinase-dependent Sgo2 centromere localisation mediates cohesin protection in mouse oocyte meiosis I

Nature Communications, 2017
A key feature of meiosis is the step-wise removal of cohesin, the protein complex holding sister chromatids together, first from arms in meiosis I and then from the centromere region in meiosis II.
Warif El Yakoubi, Eulalie Buffin, Damien Cladière, Yulia Gryaznova, I. Berenguer, Sandra A. Touati, R. Gómez, J. Suja, J. V. van Deursen, Katja Wassmann   +9 more
semanticscholar   +1 more source

Transcription factors SOHLH1 and SOHLH2 coordinate oocyte differentiation without affecting meiosis I

Journal of Clinical Investigation, 2017
Following migration of primordial germ cells to the genital ridge, oogonia undergo several rounds of mitotic division and enter meiosis at approximately E13.5. Most oocytes arrest in the dictyate (diplotene) stage of meiosis circa E18.5.
Yong-hyun Shin, Yu Ren, Hitomi Suzuki, Kayla Golnoski, H. Ahn, Vasil Mico, A. Rajkovic   +6 more
semanticscholar   +1 more source

Tetrahymena meiosis: Simple yet ingenious.

PLoS Genetics, 2021
The presence of meiosis, which is a conserved component of sexual reproduction, across organisms from all eukaryotic kingdoms, strongly argues that sex is a primordial feature of eukaryotes.
Josef Loidl
doaj   +1 more source