The use of Simple Sequence Repeats (SSRs) to identify commercially important potato (Solanum tuberosumL.) cultivars in South Africa
作者:
C.E. McGregor,
M.M. Greyling,
L. Warnich,
期刊:
South African Journal of Plant and Soil
(Taylor Available online 2000)
卷期:
Volume 17,
issue 4
页码: 177-179
ISSN:0257-1862
年代: 2000
DOI:10.1080/02571862.2000.10634894
出版商: Taylor & Francis Group
关键词: Cultivar identification;Solanum tuberosum;SSRs
数据来源: Taylor
摘要:
The morphological traits that are traditionally used to identify potato cultivars are not always reliable, especially when dealing within vitroplants. Various molecular marker techniques have been described for cultivar identification, but the Simple Sequence Repeat (SSR) technique has certain qualities that render it highly suitable for this application. In this study five SSR primer sets were used to characterize twenty-four commercially important potato cultivars. All profiles were found to be reliable and no variation was found between clones of the same cultivar. The number of polymorphisms detected with each of the markers varied, but none of the primers yielded only monomorphic fragments. The multilocus primer, STIIKA produced unique profiles for each of the 24 primer sets. However, the complicated nature of the profiles limits its use for routine diagnostic purposes. The use of the markers STS and STU 69633 the fact that they can be analysed simultaneously on one gel, saves time and costs. The present study thus confirms that SSRs can be employed in a routine profiling system to provide highly discriminative and standardized profiles for South African potato cultivars.
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