Get 20M+ Full-Text Papers For Less Than $1.50/day. Start a 14-Day Trial for You or Your Team.

Learn More →

Stable albinism induced without mutagenesis: a model for ribosome‐free plastid inheritance

Stable albinism induced without mutagenesis: a model for ribosome‐free plastid inheritance Maternally inherited chlorophyll deficiency, or albinism, is a standard marker in plant cytoplasmic genetics. Its stability is consistent with mutations in the plastid genome. Nuclear mutations inducing plastid ribosome deficiency (PRD) also lead to maternally inherited chlorophyll deficiency. Here we report that stable chlorophyll deficiency can be efficiently generated in cruciferous plants without mutagenesis by a short exposure to spectinomycin, an inhibitor of plastid protein synthesis. We show that the chlorophyll‐deficient phenotype results from a deficiency in plastid ribosomes and plastid translation products. Loss of plastid ribosomes is irreversible. The data suggest that mutations are not essential for generating inheritable PRD. It allows the formulation of a more general model in which stable PRD can be induced by a variety of factors that prevent the formation of functional plastid ribosomes. A non‐mutational mechanism for generating inheritable chlorophyll deficiency has implications for the origin and inheritance of green–white variegation in nature. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png The Plant Journal Wiley

Stable albinism induced without mutagenesis: a model for ribosome‐free plastid inheritance

The Plant Journal , Volume 15 (2) – Jul 1, 1998

Loading next page...
 
/lp/wiley/stable-albinism-induced-without-mutagenesis-a-model-for-ribosome-free-payVTdTjuo

References (18)

Publisher
Wiley
Copyright
Copyright © 1998 Wiley Subscription Services, Inc., A Wiley Company
ISSN
0960-7412
eISSN
1365-313X
DOI
10.1046/j.1365-313X.1998.00195.x
Publisher site
See Article on Publisher Site

Abstract

Maternally inherited chlorophyll deficiency, or albinism, is a standard marker in plant cytoplasmic genetics. Its stability is consistent with mutations in the plastid genome. Nuclear mutations inducing plastid ribosome deficiency (PRD) also lead to maternally inherited chlorophyll deficiency. Here we report that stable chlorophyll deficiency can be efficiently generated in cruciferous plants without mutagenesis by a short exposure to spectinomycin, an inhibitor of plastid protein synthesis. We show that the chlorophyll‐deficient phenotype results from a deficiency in plastid ribosomes and plastid translation products. Loss of plastid ribosomes is irreversible. The data suggest that mutations are not essential for generating inheritable PRD. It allows the formulation of a more general model in which stable PRD can be induced by a variety of factors that prevent the formation of functional plastid ribosomes. A non‐mutational mechanism for generating inheritable chlorophyll deficiency has implications for the origin and inheritance of green–white variegation in nature.

Journal

The Plant JournalWiley

Published: Jul 1, 1998

There are no references for this article.