Results 71 to 80 of about 61,553 (233)

Meiotic Recombination in Human Oocytes

PLoS Genetics, 2009
Studies of human trisomies indicate a remarkable relationship between abnormal meiotic recombination and subsequent nondisjunction at maternal meiosis I or II. Specifically, failure to recombine or recombination events located either too near to or too far from the centromere have been linked to the origin of human trisomies.
Cheng, Edith Y, Hunt, Patricia A, Naluai-Cecchini, Theresa A, Fligner, Corrine L, Fujimoto, Victor Y, Pasternack, Tanya L, Schwartz, Jackie M, Steinauer, Jody E, Woodruff, Tracey J, Cherry, Sheila M, Hansen, Terah A, Vallente, Rhea U, Broman, Karl W, Hassold, Terry J   +13 more
openaire   +5 more sources

The power of many: when genetics met yeasts and high‐throughput

Biological Reviews, EarlyView.
ABSTRACT In recent years, complex technological capabilities have evolved, driven by the need to solve complex and integrative biological questions through global analyses. New equipment allows the scaling up and automation of processes which previously were carried out on a very limited scale.
Víctor A. Tallada, Víctor Carranco
wiley   +1 more source

Mek1 coordinates meiotic progression with DNA break repair by directly phosphorylating and inhibiting the yeast pachytene exit regulator Ndt80.

PLoS Genetics, 2018
Meiotic recombination plays a critical role in sexual reproduction by creating crossovers between homologous chromosomes. These crossovers, along with sister chromatid cohesion, connect homologs to enable proper segregation at Meiosis I. Recombination is
Xiangyu Chen, Robert Gaglione, Trevor Leong, Lauren Bednor, Teresa de Los Santos, Ed Luk, Michael Airola, Nancy M Hollingsworth   +7 more
doaj   +1 more source

An expanded inventory of conserved meiotic genes provides evidence for sex in Trichomonas vaginalis.

PLoS ONE, 2007
Meiosis is a defining feature of eukaryotes but its phylogenetic distribution has not been broadly determined, especially among eukaryotic microorganisms (i.e. protists)-which represent the majority of eukaryotic 'supergroups'.
Shehre-Banoo Malik, Arthur W Pightling, Lauren M Stefaniak, Andrew M Schurko, John M Logsdon   +4 more
doaj   +1 more source

Surviving a Genome Collision: Genomic Signatures of Allopolyploidization in the Recent Crop Species [PDF]

, 2017
Polyploidization has played a major role in crop plant evolution, leading to advantageous traits that have been selected by humans. Here, we describe restructuring patterns in the genome of Brassica napus L., a recent allopolyploid species.
Chalhoub, Boulos, Samans, Birgit, Snowdon, Rod J.   +2 more
core   +1 more source

Oocyte–cumulus cell interaction: a key factor in early embryo development

Biological Reviews, EarlyView.
ABSTRACT The evaluation of oocyte competence is a fundamental step in achieving successful outcomes following assisted reproduction techniques (ART). At present, however, conventional oocyte maturation assessment is carried out by morphological observation, which is a subjective method that does not consider molecular features.
Marc Torres‐Garrido, Marc Yeste, Yentel Mateo‐Otero   +2 more
wiley   +1 more source

ReCombine: a suite of programs for detection and analysis of meiotic recombination in whole-genome datasets. [PDF]

PLoS ONE, 2011
In meiosis, the exchange of DNA between chromosomes by homologous recombination is a critical step that ensures proper chromosome segregation and increases genetic diversity.
Carol M Anderson, Stacy Y Chen, Michelle T Dimon, Ashwini Oke, Joseph L DeRisi, Jennifer C Fung   +5 more
doaj   +1 more source

Introgression in interspecific hybrids of lily [PDF]

, 2002
In order to introduce new desirable characters into the cultivar assortment of lily a range of interspecific crossing barriers has to be overcome. By using various pollination and embryo rescue techniques pre- and postfertilization barriers were overcome
Lim, K.B., Maas, I.W.G.M., Tuyl, J.M., van   +2 more
core   +2 more sources

Nuclear Entanglement: New Insights Into the Role of Cytoskeleton and Nucleoskeleton in Plant Nuclear Function

Cytoskeleton, EarlyView.
ABSTRACT Of the three types of cytoskeleton known in animals—actin, microtubules, and intermediate filaments—only actin and microtubules exist in plants. Both play important roles in cellular shaping, organelle movement, organization of the endomembrane system, and cell signaling.
Norman R. Groves, Katelyn Amstutz, Lily A. Schumacher, Iris Meier   +3 more
wiley   +1 more source

BRCA1 establishes DNA damage signaling and pericentric heterochromatin of the X chromosome in male meiosis [PDF]

, 2014
During meiosis, DNA damage response (DDR) proteins induce transcriptional silencing of unsynapsed chromatin, including the constitutively unsynapsed XY chromosomes in males.
Ahmed, Baarends, Bakkenist, Barchi, Bellani, Bhattacharyya, Bishop, Bouwman, Bunting, Bunting, Carofiglio, Ciccia, Cimprich, Daniel, Dong, Edelmann, Fernandez-Capetillo, Foray, Fukuda, Gallardo, Greenberg, Huen, Ichijima, Ichijima, Inselman, Jeannie T. Lee, Kalocsay, Kazuteru Hasegawa, Kitagawa, Kneitz, Kogo, Kogo, Kris G. Alavattam, Lange, Langmead, Lim, Lu, Lu, Lu, Luijsterburg, Lukas, Lundgren, Moynahan, Namekawa, Namekawa, Namekawa, Paul R. Andreassen, Peng, Perera, Peters, Pittman, Polo, R. Daniel Camerini-Otero, Romanienko, Royo, Royo, Ruslan I. Sadreyev, Satoshi H. Namekawa, Saxe, Scully, Shin, Sin, Sy, Tarsounas, Turner, Turner, Turner, Turner, Tyler J. Broering, Urquhart, van der Heijden, Wang, Ward, Wojtasz, Wojtasz, Xu, Xu, Yasuko Kato, Yoshida, Yosuke Ichijima, Zhang, Zhang, Zhang, Zhu   +83 more
core   +1 more source