Note to users. If you're seeing this message, it means that your browser cannot find this page's style/presentation instructions -- or possibly that you are using a browser that does not support current Web standards. Find out more about why this message is appearing, and what you can do to make your experience of our site the best it can be.

Site Tools

  • AAAS
  • Subscribe
  • Feedback

Site Search

Search Advanced

Science 5 October 1990:
Vol. 250. no. 4977, pp. 99 - 101
DOI: 10.1126/science.250.4977.99
Prev | Table of Contents | Next

Articles

Developmentally Regulated Systemic Endopolyploid in Succulents with Small Genomes

E. Jay De Rocher 1, Kristi R. Harkins 2, David W. Galbraith 2, and Hans J. Bohnert 3

1 Department of Molecular and Cellular Biology, University of Arizona, Tucson, AZ 85721
2 Department of Plant Sciences, University of Arizona, Tucscon, AZ 85721
3 Department of Biochemistry, University of Arizona, Tucson, AZ 85721

Nuclei from Mesembryanthemum crystallinum (ice plant) exhibit multiple levels of ploidy in every tissue as revealed by flow microfluorometric analysis of isolated nuclei stained with mithramycin. Multiples of the haploid nuclear genome complement (1C) corresponding to 2C, 4C, 8C, 16C, 32C, and 64C were observed. The distribution of nuclei among the different ploidy levels is tissue-specific and in leaves is characteristic of the stage of development. This type of genome organization has been identified in eight other succulent CAM (crassulacean acid metabolism) plant species with small genomes. Multiploidy may be a common property of this type of plant.


THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
Difference in light-induced increase in ploidy level and cell size between adaxial and abaxial epidermal pavement cells of Phaseolus vulgaris primary leaves.
I. Kinoshita, A. Sanbe, and E-i. Yokomura (2008)
J. Exp. Bot. 59, 1419-1430
   Abstract »    Full Text »    PDF »
Chromosome numbers, nuclear DNA content, and polyploidy in Consolea (Cactaceae), an endemic cactus of the Caribbean Islands.
V. Negron-Ortiz (2007)
Am. J. Botany 94, 1360-1370
   Abstract »    Full Text »    PDF »
Nuclear DNA Amounts in Macaronesian Angiosperms.
J. SUDA, T. KYNCL, and R. FREIOVA (2003)
Ann. Bot. 92, 153-164
   Abstract »    Full Text »    PDF »
Histone Gene Complement, Variant Expression, and mRNA Processing in a Urochordate Oikopleura dioica that Undergoes Extensive Polyploidization.
M. Chioda, R. Eskeland, and E. M. Thompson (2002)
Mol. Biol. Evol. 19, 2247-2260
   Abstract »    Full Text »    PDF »
Ploidy Levels among Species in the 'Oxalistuberosa Alliance' as Inferred by Flow Cytometry.
E. EMSHWILLER (2002)
Ann. Bot. 89, 741-753
   Abstract »    Full Text »    PDF »
Nuclear DNA endoreduplication during petal development in cabbage: relationship between ploidy levels and cell size.
N. Kudo and Y. Kimura (2002)
J. Exp. Bot. 53, 1017-1023
   Abstract »    Full Text »    PDF »
Crassulacean Acid Metabolism. A Plastic Photosynthetic Adaptation to Arid Environments.
J. C. Cushman (2001)
Plant Physiology 127, 1439-1448
   Full Text »    PDF »
Expression and Stress-Dependent Induction of Potassium Channel Transcripts in the Common Ice Plant.
H. Su, D. Golldack, M. Katsuhara, C. Zhao, and H. J. Bohnert (2001)
Plant Physiology 125, 604-614
   Abstract »    Full Text »
Arabidopsis Species Hybrids in the Study of Species Differences and Evolution of Amphiploidy in Plants.
M. E. Nasrallah, K. Yogeeswaran, S. Snyder, and J. B. Nasrallah (2000)
Plant Physiology 124, 1605-1614
   Abstract »    Full Text »
The Modulation of DNA Content: Proximate Causes and Ultimate Consequences.
T. R. Gregory and P. D.N. Hebert (1999)
Genome Res. 9, 317-324
   Abstract »    Full Text »


ADVERTISEMENT
Click Me!

ADVERTISEMENT
Click Me!

To Advertise     Find Products

Science. ISSN 0036-8075 (print), 1095-9203 (online)