Open AccessChromosome recombination in rice meiosis
Author(s) -
Jun Chen,
Weixiong Luo,
Ming Li,
Qiong Luo
Publication year - 2011
Publication title -
yichuan
Language(s) - Uncategorized
Resource type - Journals
ISSN - 0253-9772
DOI - 10.3724/sp.j.1005.2011.00648
Subject(s) - synapsis , meiosis , biology , genetic recombination , genetics , synaptonemal complex , recombination , chromosomal crossover , homologous recombination , chromosome , population , bivalent (engine) , evolutionary biology , gene , chemistry , demography , organic chemistry , sociology , metal
Meiosis is a highly conservative process, which plays important role in the life cycles of all sexually reproductive organisms, while the pairing, synapsis, and recombination are the key events in this process and have become the hotspots in meiosis studies. At present, we cannot observe the process of cross and recombination of chromosomes directly in plant meiosis, and generally conclude the process by analysis the genetic population. In the present study, we analyzed 32 DH lines using graphical genotypes, and found 4 chromosomes out of 32 DH lines had regional heterozygosis, which was further confirmed using STS markers. We suggested that it may cause by repair incompletion or mis-repair of chromsome. These results provid some directly evidence for explaining the mechanism of plant meiosis.