The Importance of Polyploidy in Meconopsis with Particular Reference to the Big Perennial Blue Poppies

Ian McNaughton

Abstract


A comparison is made between evolution of the genus Meconopsis through natural selection, which takes a long time, and rapid evolution through polyploidy. The possible formation of the tetraploid Meconopsis grandis from the diploid M. baileyiis considered in detail. The possibility of an extended diploid to hexaploid chromosome series in the ‘Big Blue Poppies’ is discussed. Each component of the series is described. The formation of Meconopsis 'Linghol' as an example of a probable new hexaploid species with its evolution through somatic chromosome doubling is considered in detail. The possibiliity of pentaploids, a new ploidy level or cytotype in the proposed series, is discussed with putative examples. A glossary of terms used is provided.

Full Text:

PDF

References


COBB, J.L.S. (1989). Meconopsis. Christopher Helm, London/Timber Press, Portland, Oregon.

ELLIOTT, A. & KENICER, G.J. (2009). The effects of short term storage on germination in Meconopsis vig. (Papaveraceae).

Sibbaldia, 7, 159–179.

GRANT, V. (1971). Plant Speciation. Columbia University Press, New York and London.

GREY-WILSON, C. (2000). Poppies, The Poppy Family in the Wild and in Cultivation. B.T. Basford Ltd, London. Revised Edition.

GREY-WILSON, C. (2009). Bailey’s Blue Poppy Restored. The Alpine Gardener, 77, 217–225.

GREY-WILSON, C. (2012). Meconopsis grandis – the true Himalayan blue poppy. Sibbaldia, 8, 75–97.

MINGLI, Z. & GREY-WILSON, C. (2008). Flora of China, 7, 262–278. Available online: http://flora.huh.harvard.edu/china/pdf/PDF07/Meconopsis.pdf (accessed August 2013).

RATTER, J.A. (1968). Cytological studies in Meconopsis,

Notes from the R.B.G., 28, 191.

STEVENS, E. (2006). The Meconopsis Group, the Big Blue Poppies and RHS Awards. Sibbaldia, 4, 31–58.

STEVENS, E. & BRICKELL, C.D. (2002). Meconopsis ‘Lingholm’ (Fertile Blue Group). The Rock Garden, 27, 109, 381–388.

TAYLOR, G. (1934). An Account of the Genus Meconopsis. New Flora and Silva, London.

TAYLOR, G. (1936). Meconopsis × sheldonii G.Taylor, Gardeners’ Chronicle, 1936, III, 9.

THE MECONOPSIS GROUP (2012–2013). Available online: www.meconopsis.org/ (accessed June 2013).

YANG, F.-S., QIN, A.-L., LI, Y.-F. & WANG, X.-Q. (2012). Great genetic differentiation among populations of Meconopsis integrifolia and its implication for plant speciation in the Qinghai-Tibetan plateau. PLoS ONE 7(5), 137–196.

YING, M., XIE, H.-Y., NIE, Z.-L., GU, Z.-J. & YANG, Y.P. (2006). A karyomorphological study on four species of Meconopsis vig. (Papaveraceae) from the Hengduan Mountains, S.W. China. Caryologia, 59, 1–6.

GENERAL REVIEWS ON POLYPLOIDY AND PLANT SPECIATION WHICH HAVE INFORMED SOME OF THE DISCUSSION IN THIS PAPER

RAMSEY, J. & SCHEMSKE, D.W. (1998). Pathways, mechanisms, and rates of polyploid formation in flowering plants. Annual Review of Ecology and Systematics, 467–501.

SOLTIS, D.E., SOLTIS, P.S. & TATE, J.A. (2003). Advances in the study of polyploidy since plant speciation. New Phytologist, 161, 173–191.


Refbacks

  • There are currently no refbacks.




Copyright (c) 2015 Royal Botanic Garden Edinburgh