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Genetic Diversity in Some Introduced Pasture Grass Cultivars Revealed by Inter-Simple Sequence Repeats (ISSR) Markers: Detailed Overview | Chapter 6 | Current Strategies in Biotechnology and Bioresource Technology Vol. 1


This study was focused on studying the genetic diversity among pasture grass cultivars using intersimple sequence repeats (ISSR) markers to determine their genetic background. Six grass cultivars were used in this study: two perennial ryegrass (Lolium perenne L.) cultivars (Aries and Quartet), two endophyte-free tall fescue (Festuca arundinacea Schreb.) cultivars (Fawn and K5666v) and two orchardgrass (Dactylis glomerata L.) cultivars (Tekapo and Niva). Analysis of the 15 selected ISSR primers among the six grass cultivars generated 77 bands, 66 (85.7%) of which were polymorphic. The two perennial ryegrasses cultivars (Aries and Quartet) were distinguished by a 600-bp amplification fragment produced by primer UBC807. The 500-bp amplification fragment was produced by primer UBC825, which was distinguished in Niva, but absent in Tekapo-orchard grass. Furthermore, Fawn-tall fescue was distinguished by a 400-bp amplification fragment produced by primer UBC825. The minimum genetic similarity (GS) value was obtained between the two orchard grass cultivars (Niva and Tekapo), while the maximum GS value was obtained between the two perennial ryegrasses cultivars (Aries and Quartet).


Author(s) Details
Dr. M. I. Motawei
Department of Plant Production and Protection, College of Agriculture and Veterinary Medicine, Qassim University, Qassim, Saudi Arabia

Dr. N. S. AL-Ghumaiz
Department of Plant Production and Protection, College of Agriculture and Veterinary Medicine, Qassim University, Qassim, Saudi Arabia.

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