PMID- 20706730
OWN - NLM
STAT- MEDLINE
DCOM- 20110420
LR  - 20211020
IS  - 1432-0886 (Electronic)
IS  - 0009-5915 (Linking)
VI  - 120
IP  - 1
DP  - 2011 Feb
TI  - Non-homologous chromosome pairing and crossover formation in haploid rice 
      meiosis.
PG  - 47-60
LID - 10.1007/s00412-010-0288-3 [doi]
AB  - While many studies have provided significant insight into homolog pairing during 
      meiosis, information on non-homologous pairing is much less abundant. In the 
      present study, fluorescence in situ hybridization (FISH) was used to investigate 
      non-homologous pairing in haploid rice during meiosis. At pachytene, 
      non-homologous chromosomes paired and formed synaptonemal complexes. FISH 
      analysis data indicated that chromosome pairing could be grouped into three major 
      types: (1) single chromosome paired fold-back as the univalent structure, (2) two 
      non-homologous chromosomes paired as the bivalent structure, and (3) three or 
      more non-homologous chromosomes paired as the multivalent structure. In the 
      survey of 70 cells, 65 contained univalents, 45 contained bivalents, and 49 
      contained multivalent. Moreover, chromosomes 9 and 10 as well as chromosomes 11 
      and 12 formed non-homologous bivalents at a higher frequency than the other 
      chromosomes. However, chiasma was always detected in the bivalent only between 
      chromosomes 11 and 12 at diakinesis or metaphase I, indicating the pairing 
      between these two chromosomes leads non-homologous recombination during meiosis. 
      The synaptonemal complex formation between non-homologs was further proved by 
      immunodetection of RCE8, PAIR2, and ZEP1. Especially, ZEP1 only loaded onto the 
      paired chromosomes other than the un-paired chromosomes at pachytene in haploid.
FAU - Gong, Zhiyun
AU  - Gong Z
AD  - Key Laboratory of Crop Genetics and Physiology of Jiangsu Province/Key Laboratory 
      of Plant Functional Genomics of Ministry of Education, Yangzhou University, 
      Yangzhou 225009, China.
FAU - Liu, Xiuxiu
AU  - Liu X
FAU - Tang, Ding
AU  - Tang D
FAU - Yu, Hengxiu
AU  - Yu H
FAU - Yi, Chuandeng
AU  - Yi C
FAU - Cheng, Zhukuan
AU  - Cheng Z
FAU - Gu, Minghong
AU  - Gu M
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
DEP - 20100813
PL  - Austria
TA  - Chromosoma
JT  - Chromosoma
JID - 2985138R
RN  - 0 (Plant Proteins)
SB  - IM
MH  - Chromosomes, Plant/genetics/*metabolism
MH  - Oryza/genetics/*metabolism
MH  - Plant Proteins/genetics/*metabolism
MH  - Synaptonemal Complex/genetics/*metabolism
EDAT- 2010/08/14 06:00
MHDA- 2011/04/22 06:00
CRDT- 2010/08/14 06:00
PHST- 2010/03/31 00:00 [received]
PHST- 2010/07/19 00:00 [accepted]
PHST- 2010/07/15 00:00 [revised]
PHST- 2010/08/14 06:00 [entrez]
PHST- 2010/08/14 06:00 [pubmed]
PHST- 2011/04/22 06:00 [medline]
AID - 10.1007/s00412-010-0288-3 [doi]
PST - ppublish
SO  - Chromosoma. 2011 Feb;120(1):47-60. doi: 10.1007/s00412-010-0288-3. Epub 2010 Aug 
      13.