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1. The biochemistry of early meiotic recombination intermediates

   https://doi.org/10.1080/15384101.2018.1553355  

   Crickard, J. Brooks; Greene, Eric C. (December 2018, Cell Cycle)
2. Suppressors of Meiotic Silencing by Unpaired DNA

   https://doi.org/10.3390/ncrna5010014  

   Xiao, Hua; Hammond, Thomas; Shiu, Patrick (March 2019, Non-Coding RNA)

   Meiotic silencing by unpaired DNA (MSUD) is a gene silencing process that occurs within meiotic cells of Neurospora crassa and other fungi. We have previously developed a high-throughput screen to identify suppressors of this silencing pathway. Here, a list of MSUD suppressor candidates from a single pass of the first 84 plates of the Neurospora knockout library is provided. 

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3. Meiotic drive mechanisms: lessons from Drosophila

   https://doi.org/10.1098/rspb.2019.1430  

   Courret, Cécile; Chang, Ching-Ho; Wei, Kevin H.-C.; Montchamp-Moreau, Catherine; Larracuente, Amanda M. (October 2019, Proceedings of the Royal Society B: Biological Sciences)
4. Mps1 promotes poleward chromosome movements in meiotic prometaphase

   https://doi.org/10.1091/mbc.E20-08-0525-T  

   Meyer, Régis E.; Tipton, Aaron R.; LaVictoire, Rebecca; Gorbsky, Gary J.; Dawson, Dean S. (May 2021, Molecular Biology of the Cell)

   Bloom, Kerry (Ed.)

   In prophase of meiosis I, homologous chromosomes pair and become connected by cross-overs. Chiasmata, the connections formed by cross-overs, enable the chromosome pair, called a bivalent, to attach as a single unit to the spindle. When the meiotic spindle forms in prometaphase, most bivalents are associated with one spindle pole and then go through a series of oscillations on the spindle, attaching to and detaching from microtubules until the partners of the bivalent become bioriented—attached to microtubules from opposite sides of the spindle. The conserved kinase, Mps1, is essential for the bivalents to be pulled by microtubules across the spindle in prometaphase. Here we show that MPS1 is needed for efficient triggering of the migration of microtubule-attached kinetochores toward the poles and promotes microtubule depolymerization. Our data support the model Mps1 acts at the kinetochore to coordinate the successful attachment of a microtubule and the triggering of microtubule depolymerization to then move the chromosome. 

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5. Adaptive Divergence of Meiotic Recombination Rate in Ecological Speciation

   https://doi.org/10.1093/gbe/evaa182  

   Neupane, Swatantra; Xu, Sen (October 2020, Genome Biology and Evolution)

   Baer, Charles (Ed.)

   Abstract Theories predict that directional selection during adaptation to a novel habitat results in elevated meiotic recombination rate. Yet the lack of population-level recombination rate data leaves this hypothesis untested in natural populations. Here, we examine the population-level recombination rate variation in two incipient ecological species, the microcrustacean Daphnia pulex (an ephemeral-pond species) and Daphnia pulicaria (a permanent-lake species). The divergence of D. pulicaria from D. pulex involved habitat shifts from pond to lake habitats as well as strong local adaptation due to directional selection. Using a novel single-sperm genotyping approach, we estimated the male-specific recombination rate of two linkage groups in multiple populations of each species in common garden experiments and identified a significantly elevated recombination rate in D. pulicaria. Most importantly, population genetic analyses show that the divergence in recombination rate between these two species is most likely due to divergent selection in distinct ecological habitats rather than neutral evolution. 

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