ArticlePLoS genetics2015
Lateral and End-On Kinetochore Attachments Are Coordinated to Achieve Bi-orientation in Drosophila Oocytes.
Article in PLoS genetics, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 34 papers.
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Who cites it
34 citing papers in PubMed, 48 citations in OpenAlex.
- An interaction between HP1 and the Chromosomal Passenger Complex Initiates Acentrosomal Spindle Assembly inbioRxiv : the preprint server for biology · 2026Article
- Distinct checkpoint and homolog biorientation pathways regulate meiosis I in Drosophila oocytes.PLoS genetics · 2025Article
- Distinct checkpoint and homolog biorientation pathways regulate meiosis I inbioRxiv : the preprint server for biology · 2024Article
- Meiosis-specific functions of kinetochore protein SPC105R required for chromosome segregation inMolecular biology of the cell · 2024Article
- Meiosis-specific functions of kinetochore protein SPC105R required for chromosome segregation inbioRxiv : the preprint server for biology · 2024Article
- A dynamic population of prophase CENP-C is required for meiotic chromosome segregation.PLoS genetics · 2023Article
- A Brief History ofGenes · 2022Review
- Highway to hell-thy meiotic divisions: Chromosome passenger complex functions driven by microtubules: CPC interactions with both the chromosomes and microtubules are important for spindle assembly and function: CPC interactions with both the chromosomes and microtubules are important for spindle assembly and function.BioEssays : news and reviews in molecular, cellular and developmental biology · 2022Article
- Counteraction between Astrin-PP1 and Cyclin-B-CDK1 pathways protects chromosome-microtubule attachments independent of biorientation.Nature communications · 2021Article
- Role of spatial patterns and kinetochore architecture in spindle morphogenesis.Seminars in cell & developmental biology · 2021Review
- Multiple pools of PP2A regulate spindle assembly, kinetochore attachments and cohesion in Drosophila oocytes.Journal of cell science · 2021Article
- Borealin directs recruitment of the CPC to oocyte chromosomes and movement to the microtubules.The Journal of cell biology · 2021Article
- Meiotic CENP-C is a shepherd: bridging the space between the centromere and the kinetochore in time and space.Essays in biochemistry · 2020Review
- Extensive Recombination Suppression and Epistatic Selection Causes Chromosome-Wide Differentiation of a Selfish Sex Chromosome inGenetics · 2020Article
- Kinesin-7 CENP-E regulates chromosome alignment and genome stability of spermatogenic cells.Cell death discovery · 2020Article
- Prolonged ovarian storage of matureeLife · 2019Article
- Spindle assembly and chromosome dynamics during oocyte meiosis.Current opinion in cell biology · 2019Review
- Sister centromere fusion during meiosis I depends on maintaining cohesins and destabilizing microtubule attachments.PLoS genetics · 2019Article
- Activating embryonic development in Drosophila.Seminars in cell & developmental biology · 2018Review
- Maternal Proteins That Are Phosphoregulated upon Egg Activation Include Crucial Factors for Oogenesis, Egg Activation and Embryogenesis inG3 (Bethesda, Md.) · 2018Article
Corrections and comments
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Authors and funding
5 authors at 2 institutions in 2 countries.
Funding
Abstract
In oocytes, where centrosomes are absent, the chromosomes direct the assembly of a bipolar spindle. Interactions between chromosomes and microtubules are essential for both spindle formation and chromosome segregation, but the nature and function of these interactions is not clear. We have examined oocytes lacking two kinetochore proteins, NDC80 and SPC105R, and a centromere-associated motor protein, CENP-E, to characterize the impact of kinetochore-microtubule attachments on spindle assembly and chromosome segregation in Drosophila oocytes. We found that the initiation of spindle assembly results from chromosome-microtubule interactions that are kinetochore-independent. Stabilization of the spindle, however, depends on both central spindle and kinetochore components. This stabilization coincides with changes in kinetochore-microtubule attachments and bi-orientation of homologs. We propose that the bi-orientation process begins with the kinetochores moving laterally along central spindle microtubules towards their minus ends. This movement depends on SPC105R, can occur in the absence of NDC80, and is antagonized by plus-end directed forces from the CENP-E motor. End-on kinetochore-microtubule attachments that depend on NDC80 are required to stabilize bi-orientation of homologs. A surprising finding was that SPC105R but not NDC80 is required for co-orientation of sister centromeres at meiosis I. Together, these results demonstrate that, in oocytes, kinetochore-dependent and -independent chromosome-microtubule attachments work together to promote the accurate segregation of chromosomes.
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