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Chromosoma

, Volume 73, Issue 1, pp 117–129 | Cite as

Folded chromosomes of mating-factor arrested yeast cells: comparison with G0 arrest

  • R. Piñon
  • D. Pratt
Article

Abstract

Folded chromosomes of haploid a or diploid aa cells arrested by α-factor are characterized by a heterogeneous sedimentation distribution, distinguishable from the corresponding g0and g1 structures. The extent of heterogeneity appears to depend in part on the extent of the characteristic schmoe morphology. Under conditions where a and α mating-type cells are mixed together without conjugation, folded chromosomes characteristic of α-factor arrested a and aa cells appear in both cell types in a synchronous manner. Attempts to order G0 and α-factor arrest suggest that these two arrest stages represent two different branch pathways out of the cell cycle. These two branch pathways may have a common branch point, or they may be characterized by two different branch points.

Keywords

Cell Cycle Yeast Cell Developmental Biology Branch Point Branch Pathway 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag 1979

Authors and Affiliations

  • R. Piñon
    • 1
  • D. Pratt
    • 1
  1. 1.Department of BiologyUniversity of CaliforniaSan Diego, La JollaUSA

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