Journal
FRONTIERS IN PLANT SCIENCE
Volume 4, Issue -, Pages -Publisher
FRONTIERS RESEARCH FOUNDATION
DOI: 10.3389/fpls.2013.00505
Keywords
minichromosomes; maize; meiosis; sister chromatid cohesion; synapsis
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Funding
- National Science Foundation [DBI 0922703, DBI 0701297, IOS1339198]
- National Basic Research Program of China (973 Program) [2011CB944601]
- National Natural Science Foundation of China [31320103912]
- Direct For Biological Sciences
- Division Of Integrative Organismal Systems [0922703] Funding Source: National Science Foundation
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The typical behavior of chromosomes in meiosis is that homologous pairs synapse, recombine, and then separate at anaphase I. At anaphase II, sister chromatids separate. However, studies of small chromosomes in maize derived from a variety of sources typically have failure of sister chromatid cohesion at anaphase I. This failure occurs whether there is pairing of two copies of a minichromosome or not. These characteristics have implications for managing the transmission of the first generation artificial chromosomes in plants. Procedures to address these issues of minichromosomes are discussed.
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