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Speciation in Callitriche (Plantaginaceae): the allopolyploid origin of C. platycarpa

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journal contribution
posted on 2018-01-09, 10:24 authored by T. Schwarzacher, V. Scrocca, K. Johnson, R. J. Gornall
Genomic in situ hybridisation (GISH) experiments involving hybridising labelled genomic DNA from the diploid species C. stagnalis, C. obtusangula and C. cophocarpa to chromosome spreads of the tetraploid C. platycarpa (2n = 4× = 20) show that C. stagnalis and C. cophocarpa DNA each hybridise with a different ten chromosomes of the C. platycarpa complement, whereas C. obtusangula DNA does not differentiate between the two genomes. We conclude on the basis of this and other evidence that C. platycarpa is likely to be an allotetraploid derivative of C. cophocarpa and C. stagnalis. This work demonstrates the successful application of GISH to the study of polyploid evolution in the genus Callitriche.

Funding

We should like to thank Prof. Niels Jacobsen & Dr. Marian Oergaard (University of Copenhagen) for providing us with material of Callitiche cophocarpa. VS thanks L'Università La Sapienza, Rome for the award of a scholarship

History

Citation

New Journal of Botany, 2016, 6 (2-3), pp. 98-101

Author affiliation

/Organisation/COLLEGE OF LIFE SCIENCES/Biological Sciences/Genetics and Genome Biology

Version

  • AM (Accepted Manuscript)

Published in

New Journal of Botany

Publisher

Maney Publishing, Botanical Society of the British Isles

issn

2042-3489

eissn

2042-3497

Copyright date

2017

Available date

2018-02-20

Publisher version

http://www.tandfonline.com/doi/full/10.1080/20423489.2016.1271293

Notes

The file associated with this record is under embargo until 12 months after publication, in accordance with the publisher's self-archiving policy. The full text may be available through the publisher links provided above.

Language

en

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