Control of the meiotic cell division program in plants

摘要: While the question of why organisms reproduce sexually is still a matter controversy, it clear that foundation sexual reproduction formation gametes with half genomic DNA content somatic cell. This reduction in accomplished through meiosis that, contrast to mitosis, comprises two subsequent chromosome segregation steps without an intervening S phase. In addition, generates new allele combinations compilation sets homologous chromosomes and reciprocal exchange chromatid segments between homologues. Progression relies on many same, or at least homologous, cell cycle regulators act e.g., cyclin-dependent kinases anaphase-promoting complex/cyclosome. However, these mitotic control factors are often differentially regulated meiosis. several meiosis-specific genes have been identified. We here review increasing knowledge meiotic plants. Interestingly, plants appear relaxed checkpoints comparison animals yeast mutants viable. makes powerful models study progression allows unique modifications their program develop plant-breeding strategies.