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Chapter 23 TULIP - The Lilium information page

Chapter 23 TULIP - The Lilium information page

Chapter 23 TULIP - The Lilium information

Chapter 23 TULIP Tulipa gesneriana and T. hybrids Jaap M. Van Tuyl & Marjan G.M. van Creij BU Biodiversity and Breeding, Plant Research International, Wageningen University and Research Centre, Wageningen, The Netherlands Abstract: Key words: Tulips are commonly associated with The Netherlands, even though they are native to Central Asia. This association began in 1594 and caused the famous ‘tulipomania’ in the 1600s. This vegetatively propagated crop is currently the most important bulbous geophyte in the world. Modern cultivars (predominantly Tulipa gesneriana) are grown for bulb production, cut flowers, flowering potted plants, and landscaping. The Netherlands and France are the primary tulip bulb producers. Continued breeding and improvement of T. gesneriana focus on disease resistance, improved floral longevity, and new flower shapes/colors. Interspecific hybridization is hampered by reproductive (pre- and post-pollination) and germination barriers (due to incongruity), and long generation times. Crossing barriers have been overcome with the use of techniques such as bud pollination, cut styles, grafted styles, placental pollination, and pollination of isolated ovules. Haploidization and molecular techniques are being used to create homozygous plants and conduct markerassisted breeding, respectively. Bulb, Geophyte, Interspecific hybridization, Liliaceae, Monocot, Mutation breeding 1. INTRODUCTION 1.1 Tulips – General Aspects Generally, tulips are associated with The Netherlands. However, the primary gene centre of the genus Tulipa L. is located in the Pamir Alai and Tien Shan mountain ranges in Central Asia (Hoog, 1973). Diversification occurred from this 623 N.O. Anderson (ed.), Flower Breeding and Genetics, 623–641. © 2006 Springer. Printed in the Netherlands.

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