Yi, Jun
- Institutionen för växtbiologi, Sveriges lantbruksuniversitet
Sammanfattning
Accurate positioning of spindles is a critical aspect of cell division as it ensures that each daughter cell contains a single nucleus. In many flowering plants, two meiotic chromosome separations occur without intervening cytokinesis, resulting in two spindles in one cell during the second division. Here we report a detailed examination of two mutants, jason (jas) and parallel spindle1 (ps1), in which disturbed spindle position during male meiosis II results in the incorporation of previously separated chromosome groups into a single cell. Our study reveals that an organelle band provides a physical barrier between the two spindles. The loss of a single protein, JAS, from this organelle band leads to its disruption and a random movement of the spindles. JAS is largely associated with vesicles in the organelle band, revealing a role for vesicles in plant meiosis and that cytoplasmic events maintain spindle position during the chromosome division.
Publicerad i
Nature Communications
2015, volym: 6, artikelnummer: 6492
Utgivare: NATURE PUBLISHING GROUP
SLU författare
Jiang, Hua
- Institutionen för växtbiologi, Sveriges lantbruksuniversitet
- Institutionen för växtbiologi, Sveriges lantbruksuniversitet
Minina, Alyona
- Institutionen för växtbiologi, Sveriges lantbruksuniversitet
- Institutionen för växtbiologi, Sveriges lantbruksuniversitet
Köhler, Claudia
- Institutionen för växtbiologi, Sveriges lantbruksuniversitet
- Institutionen för växtbiologi, Sveriges lantbruksuniversitet
UKÄ forskningsämne
Genetik och genomik
Cellbiologi
Publikationens identifierare
- DOI: https://doi.org/10.1038/ncomms7492
Permanent länk till denna sida (URI)
https://res.slu.se/id/publ/72362