CDKD-dependent activation of CDKA;1 controls microtubule dynamics and cytokinesis during meiosis.

Journal: Journal of Cell Biology

Published: 2020-08-03

DOI: 10.1083/jcb.201907016

Affiliations: 3

Authors: 9

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Research Highlight

A master regulator of meiosis in plants

© Clouds Hill Imaging Ltd./Corbis Documentary/Getty Images

© Clouds Hill Imaging Ltd./Corbis Documentary/Getty Images

Meiosis, a type of cell division that flowering plants use to produce pollen grains, is controlled by a master regulator of the cell cycle known as CDKA;1. This finding could lead to new plant-breeding strategies.

Working with the model plant Arabidopsis, a team led by researchers at Universität Hamburg has discovered that CDKA;1 controls the organization of microtubules — hollow, straw-like structures that move chromosomes around during meiotic cell division.

Arabidopsis plants normally complete the final separation phase of meiosis, which involves the physical creation of new cell walls, simultaneously in all four daughter cells. However, a slight reduction in CDKA;1 activity was sufficient to make this happen in two successive steps.

Manipulating CDKA;1 levels could thus help plant breeders better control the meiotic process in crops.

Supported content

  1. Journal of Cell Biology 219, e201907016 (2020). doi: 10.1083/jcb.201907016
Institutions Share
Department of Developmental Biology, UHH, Germany 0.56
Graduate School of Science and Technology, NAIST, Japan 0.33
Department of Plant Physiology, Uni Osnabrück, Germany 0.11

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