Preliminary DNA fingerprinting of the turf grass Cynodon dactylon (Poaceae: Chloridoideae)

Bothalia - African Biodiversity & Conservation

 
 
Field Value
 
Title Preliminary DNA fingerprinting of the turf grass Cynodon dactylon (Poaceae: Chloridoideae)
 
Creator Roodt, R. Spies, J. J. Burger, T. H.
 
Subject — Cynodon Rich., genetic distances, identification. RAPDs, turf grasses
Description Identification of different cultivars of turf grasses is often very difficult. In a preliminary attempt to identify different cultivars o f Cynodon dactylon (L.) Pers.. random amplified polymorphic DNA (RAPD) analyses of some well-known cultivars used in South Africa, i.e. Bayview. Cape Royal, Florida. Hamsmith. Silverton Blue. Skaapplaas and Titdwart. as well as 10 potential new cultivars, were done. These results were used to determine the genetic distances among cultivars. Only five primers w ere needed to obtain a specific fragment pattern for each cultivar. The degree o f amplification w as used as an additional criterion by including all visible fragments, excluding very faint fragments and only including the brightest fragments. The neighbour-joining trees o f C.  dactylon showed best resolution from the data set w ith all visible fragments included. although fragment intensity did not affect the tree topology. The cultivars Silverton Blue and Bayview exhibited the greatest genetic variation and two potential new cultivars were identified. RAPD analyses can. therefore, be used to distin­guish between different C. dactylon cultivars and to determine the genetic variation between them by calculating genetic distances.
 
Publisher AOSIS
 
Contributor
Date 2002-09-11
 
Type info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion — —
Format application/pdf
Identifier 10.4102/abc.v32i1.474
 
Source Bothalia; Vol 32, No 1 (2002); 117-122 2311-9284 0006-8241
 
Language eng
 
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https://journals.abcjournal.aosis.co.za/index.php/abc/article/view/474/416
 
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Rights Copyright (c) 2002 R. Roodt, J. J. Spies, T. H. Burger https://creativecommons.org/licenses/by/4.0
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