Large-scale development of PIP and SSR markers and their complementary applied in Nicotiana

Large-scale development of PIP and SSR markers and their complementary applied in Nicotiana PIP (Potential Intron Polymorphism) and SSR (Simple Sequence Repeats) were used in many species, but large-scale development and combined use of these two markers have not been reported in tobacco. In this study, a total of 12,388 PIP and 76,848 SSR markers were designed and uploaded to a webaccessible database ( ). E-PCR analysis showed that PIP and SSR rarely over-lapped and were strongly complementary in the tobacco genome. The density of markers was 3.07 PIP and 1.72 SSR per 10 kb of the known sequences. A total of 153 and 166 alleles were detected by 22 PIP and 22 SSR markers in 64 Nicotiana accessions. SSR produced higher PIC (polymorphism information content) values and identified more alleles than PIP, whereas PIP could identify larger numbers of rare alleles. Mantel testing demonstrated a high correlation coefficient (r = 0.949, P < 0.001) between PIP and SSR. The UPGMA dendrogram created from the combined PIP and SSR markers was clearer and more reliable than the individual PIP or SSR dendrograms. It suggested that PIP and SSR can make up the deficiency of molecular markers not only in tobacco but other plant. Russian Journal of Genetics Springer Journals

Large-scale development of PIP and SSR markers and their complementary applied in Nicotiana

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Springer US
Copyright © 2013 by Pleiades Publishing, Ltd.
Biomedicine; Human Genetics; Animal Genetics and Genomics; Microbial Genetics and Genomics
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