26 matches found in 14 documents. Search time: 0.021 seconds. |
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Score: 6.00 | Title: PAIR2 is essential for homologous chromosome synapsis in rice meiosis I | Author: Nonomura K Nakano M Eiguchi M Suzuki T Kurata N | Journal: J Cell . Sci . Citation: V : 119 ( Pt 2 ) P : 217-25 Year: 2006 Type: ARTICLE | Literature: oryza Field: abstract Doc ID: pub16410547 Accession (PMID): 16410547 | Matching Sentences: [ Sen. 1, subscore: 1.00 ]: The PAIR2 gene is required for homologous chromosome synapsis at meiosis I in rice ( Oryza sativa L ) and encodes a HORMA-domain protein that is homologous to Saccharomyces cerevisiae HOP1 and Arabidopsis ASY1 . [ Sen. 2, subscore: 1.00 ]: Immunocytological and electron microscopic analyses indicate that PAIR2 proteins associate with axial elements ( AEs ) at leptotene and zygotene , and is removed from the AEs of arm regions when homologous chromosomes have been synapsed . [ Sen. 3, subscore: 1.00 ]: Immunocytology against a centromeric histone H3 variant revealed that PAIR2 remains at centromeres until diakinesis , by which time the homologous centromeres had already been synapsed . [ Sen. 5, subscore: 1.00 ]: In the pair2-null mutant , homologous chromosome synapsis is completely eliminated . [ Sen. 6, subscore: 1.00 ]: This study provides the first description of AE-associated protein in monocot plants and indicates that PAIR2 plays an essential role in promoting homologous chromosome synapsis . [ Sen. 7, subscore: 1.00 ]: However , PAIR2 does not play a role in AE formation , sister chromatid cohesion at centromeres or kinetochore assembly in meiosis I of rice .
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Score: 5.00 | Title: An insertional mutation in the rice PAIR2 gene , the ortholog of Arabidopsis ASY1 , results in a defect in homologous chromosome pairing during meiosis .
| Author: Nonomura KI Nakano M Murata K Miyoshi K Eiguchi M Miyao A Hirochika H Kurata N | Journal: Mol . Genet . Genomics Citation: V : 271 ( 2 ) P : 121-9 Year: 2004 Type: ARTICLE | Literature: oryza Field: abstract Doc ID: pub14758540 Accession (PMID): 14758540 | Matching Sentences: [ Sen. 1, subscore: 1.00 ]: To elucidate the genetic system that establishes homologous chromosome pairing in monocot plants , we have isolated an asynaptic mutant of rice , designated pair2 ( homologous pairing aberration in rice meiosis 2 ) , in which 24 completely unpaired univalents are observed at pachytene and diakinesis . [ Sen. 4, subscore: 1.00 ]: Mature PAIR2 mRNA and several splicing variants were found to be highly expressed in wild-type reproductive it issues , and lower expression was also detected in vegetative it issues . [ Sen. 5, subscore: 1.00 ]: In situ hybridization and BrdU incorporation experiments revealed that PAIR2 expression is specifically enhanced in male and female meiocytes , but not in those at pre-meiotic S phase or in the pollen maturation stages . [ Sen. 6, subscore: 1.00 ]: The results obtained in this study suggest that the PAIR2 gene is essential for homologous chromosome pairing in meiosis , as in the case of the genes ASY1 and HOP1 . [ Sen. 7, subscore: 1.00 ]: The study also suggested the possibility that a highly homologous copy of the PAIR2 gene located on a different chromosome is in fact a pseudogene .
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Score: 5.00 | Title: MER3 is required for normal meiotic crossover formation , but not for presynaptic alignment in rice .
| Author: Wang K Tang D Wang M Lu J Yu H Liu J Qian B Gong Z Wang X Chen J Gu M Cheng Z | Journal: J Cell Sci Citation: V : P : Year: 2009 Type: Publisher | Literature: oryza Field: abstract Doc ID: pub19470578 Accession (PMID): 19470578 | Matching Sentences: [ Sen. 6, subscore: 3.00 ]: In addition , MER3 does not colocalize with PAIR2 at the beginning of prophase I , but locates on one end of PAIR2 fragments at later stages , whereas MER3 foci merely locate on one end of REC8 fragments when signals start to be seen in early prophase I The normal loading of PAIR2 and REC8 in mer3 implies that their loading is independent of MER3 . [ Sen. 7, subscore: 2.00 ]: On the contrary , the absence of MER3 signal in pair2 mutants indicates that PAIR2 is essential for the loading and further function of MER3 .
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Score: 2.00 | Title: OsSPO11-1 is essential for both homologous chromosome pairing and crossover formation in rice .
| Author: Yu H Wang M Tang D Wang K Chen F Gong Z Gu M Cheng Z | Journal: Chromosoma Citation: V : 119 P : 625-36 Year: 2010 Type: MEDLINE | Literature: oryza Field: abstract Doc ID: pub20625906 Accession (PMID): 20625906 | Matching Sentences: [ Sen. 5, subscore: 2.00 ]: Although the two axial-associated proteins , REC8 and PAIR2 , are loaded onto the chromosomes , the depletion of PAIR2 from the chromosomes is much later than in wild type .
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Score: 2.00 | Title: PAIR3 , an axis-associated protein , is essential for the recruitment of recombination elements onto meiotic chromosomes in rice .
| Author: Wang K Wang M Tang D Shen Y Qin B Li M Cheng Z | Journal: Mol Biol Cell Citation: V : 22 P : 12-9 Year: 2011 Type: MEDLINE | Literature: oryza Field: abstract Doc ID: pub21119003 Accession (PMID): 21119003 | Matching Sentences: [ Sen. 5, subscore: 2.00 ]: In addition , we showed that although PAIR3 was not required for the initial recruitment of PAIR2 , it was required for the proper association of PAIR2 with chromosomes .
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Score: 2.00 | Title: OsAM1 is required for leptotene-zygotene transition in rice .
| Author: Che L Tang D Wang K Wang M Zhu K Yu H Gu M Cheng Z | Journal: Cell Res Citation: V : 21 P : 654-65 Year: 2011 Type: MEDLINE | Literature: oryza Field: abstract Doc ID: pub21221128 Accession (PMID): 21221128 | Matching Sentences: [ Sen. 7, subscore: 1.00 ]: In the absence of OsAM1 , many other critical meiotic components , including PAIR2 , ZEP1 and OsMER3 , could not be correctly installed onto chromosomes . [ Sen. 8, subscore: 1.00 ]: In contrast , in pair2 , Osmer3 and zep1 mutants , OsAM1 could be loaded normally , suggesting that OsAM1 plays a fundamental role in building the proper chromosome structure at the beginning of meiosis .
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Score: 2.00 | Title: OsREC8 is essential for chromatid cohesion and metaphase I monopolar orientation in rice meiosis .
| Author: Shao T Tang D Wang K Wang M Che L Qin B Yu H Li M Gu M Cheng Z | Journal: Plant Physiol Citation: V : 156 P : 1386-96 Year: 2011 Type: MEDLINE | Literature: oryza Field: abstract Doc ID: pub21606318 Accession (PMID): 21606318 | Matching Sentences: [ Sen. 6, subscore: 1.00 ]: Furthermore , fluorescent in situ hybridization experiments on Osrec8 meiocytes demonstrated that the mutation eliminated meiotic centromeric cohesion completely during prophase I and also led to the bipolar orientation of the kinetochores during the first meiotic division and accordingly resulted in premature separation of sister chromatid during meiosis I Immunolocalization analyses revealed that the loading of PAIR2 , PAIR3 , OsMER3 , and ZEP1 all depended on OsREC8 . [ Sen. 7, subscore: 1.00 ]: By contrast , the presence of the OsREC8 signal in pair2 , pair3 , Osmer3 , and zep1 mutants indicated that the loading of OsREC8 did not rely on these four proteins .
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Score: 2.00 | Title: The role of OsCOM1 in homologous chromosome synapsis and recombination in rice meiosis .
| Author: Ji J Tang D Wang K Wang M Che L Li M Cheng Z | Journal: Plant J Citation: V : P : Year: 2012 Type: Publisher | Literature: oryza Field: abstract Doc ID: pub22507309 Accession (PMID): 22507309 | Matching Sentences: [ Sen. 6, subscore: 2.00 ]: Several key meiotic proteins , including ZEP1 and OsMER3 , were not loaded normally onto chromosomes in Oscom1 mutants , whereas the localization of OsREC8 , PAIR2 and PAIR3 seemed to be normal Moreover , OsCOM1 was loaded normally onto meiotic chromosomes in Osrec8 , zep1 , and Osmer3 mutants , but could not be properly loaded in Osam1 , pair2 , and OsSPO11-1 ( RNAi ) plants .
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Score: 1.00 | Title: The central element protein ZEP1 of the synaptonemal complex regulates the number of crossovers during meiosis in rice .
| Author: Wang M Wang K Tang D Wei C Li M Shen Y Chi Z Gu M Cheng Z | Journal: Plant Cell Citation: V : 22 P : 417-30 Year: 2010 Type: MEDLINE | Literature: oryza Field: abstract Doc ID: pub20154151 Accession (PMID): 20154151 | Matching Sentences: [ Sen. 5, subscore: 1.00 ]: Transmission electron micrographs and immunodetection using an antibody against ZEP1 showed that ZEP1 is the central element of the synaptonemal complex Although PAIR2 and MER3 were loaded normally in zep1 , their dissociation was delayed severely compared with the wild type .
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Score: 1.00 | Title: Non-homologous chromosome pairing and crossover formation in haploid rice meiosis .
| Author: Gong Z Liu X Tang D Yu H Yi C Cheng Z Gu M | Journal: Chromosoma Citation: V : 120 P : 47-60 Year: 2011 Type: MEDLINE | Literature: oryza Field: abstract Doc ID: pub20706730 Accession (PMID): 20706730 | Matching Sentences: [ Sen. 8, subscore: 1.00 ]: The synaptonemal complex formation between non-homologs was further proved by immunodetection of RCE8 , PAIR2 , and ZEP1 .
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