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Reference - PMID:20404563 - High-throughput knockout screen in Schizosaccharomyces pombe identifies a novel gene required for efficient homolog disjunction during meiosis I.

Reference summary

PubMed ID
PMID:20404563
Title
High-throughput knockout screen in Schizosaccharomyces pombe identifies a novel gene required for efficient homolog disjunction during meiosis I.
Authors
Rumpf C, Cipak L, Novatchkova M, Li Z, Polakova S, Dudas A, Kovacikova I, Miadokova E, Ammerer G, Gregan J
Citation
Cell Cycle 2010 May;9(9):1802-8
Publication year
2010
Abstract
Meiosis is the process which produces haploid gametes from diploid precursor cells. This reduction of chromosome number is achieved by two successive divisions. Whereas homologs segregate during meiosis I, sister chromatids segregate during meiosis II. To identify novel proteins required for proper segregation of chromosomes during meiosis, we applied a high-throughput knockout technique to delete 87 S. pombe genes whose expression is upregulated during meiosis and analyzed the mutant phenotypes. Using this approach, we identified a new protein, Dil1, which is required to prevent meiosis I homolog non-disjunction. We show that Dil1 acts in the dynein pathway to promote oscillatory nuclear movement during meiosis.

Annotation

GO biological process

GO:0030989 - dynein-driven meiotic oscillatory nuclear movement

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GO cellular component

GO:0005737 - cytoplasm

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GO:0015630 - microtubule cytoskeleton

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GO:0110092 - nucleus leading edge

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Modification

MOD:00394 - monoacetylated residue

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Single locus phenotype

FYPO:0000197 - abnormal horsetail movement

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FYPO:0000051 - abnormal meiosis

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FYPO:0000121 - abnormal sporulation

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FYPO:0000485 - decreased meiotic recombination

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Genotypes:

FYPO:0002093 - decreased meiotic sister chromatid cohesion

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FYPO:0000581 - decreased spore germination frequency

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FYPO:0002091 - lagging meiotic chromosomes

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FYPO:0002094 - normal meiotic sister chromatid cohesion

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Genotypes:

FYPO:0000678 - unequal homologous chromosome segregation

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Warnings

PBO:0000070 - gene structure updated

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