Duffy Marissa E, Ngaw Michael, Polsky Shayna E, Marzec Abby E, Zhang Sean S, Dzierzgowski Owen R, Nannas Natalie J
Department of Biology, Hamilton College, Clinton, NY 13323, USA.
Genes (Basel). 2024 Dec 16;15(12):1606. doi: 10.3390/genes15121606.
(maize) is both an agronomically important crop and a powerful genetic model system with an extensive molecular toolkit and genomic resources. With these tools, maize is an optimal system for cytogenetic study, particularly in the investigation of chromosome segregation. Here, we review the advances made in maize chromosome segregation, specifically in the regulation and dynamic assembly of the mitotic and meiotic spindle, the inheritance and mechanisms of the abnormal chromosome variant Ab10, the regulation of chromosome-spindle interactions via the spindle assembly checkpoint, and the function of kinetochore proteins that bridge chromosomes and spindles. In this review, we discuss these processes in a species-specific context including features that are both conserved and unique to . Additionally, we highlight new protein structure prediction tools and make use of these tools to identify several novel kinetochore and spindle assembly checkpoint proteins in .
玉米既是一种在农学上具有重要意义的作物,也是一个拥有广泛分子工具和基因组资源的强大遗传模型系统。借助这些工具,玉米是细胞遗传学研究的理想系统,特别是在染色体分离的研究方面。在此,我们综述了玉米染色体分离方面取得的进展,具体包括有丝分裂和减数分裂纺锤体的调控与动态组装、异常染色体变体Ab10的遗传和机制、通过纺锤体组装检查点对染色体 - 纺锤体相互作用的调控,以及连接染色体和纺锤体的动粒蛋白的功能。在本综述中,我们在物种特异性背景下讨论这些过程,包括玉米所共有的和独特的特征。此外,我们重点介绍了新的蛋白质结构预测工具,并利用这些工具在玉米中鉴定出几种新型的动粒和纺锤体组装检查点蛋白。