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Title

Transferability of non-genic microsatellite and gene-based sunflower markers to safflower

AuthorsGarcía-Moreno, María J. ; Velasco Varo, Leonardo ; Pérez-Vich, Begoña
KeywordsCarthamus tinctorius L.
Helianthus annuus L.
Microsatellites
Gene-based markers
Molecular markers
Cross-species marker transferability
Issue DateSep-2010
PublisherSpringer
CitationEuphytica 175(2): 145-150 (2010)
AbstractSafflower (Carthamus tinctorius L.) DNA marker resources are currently very limited. The objective of this study was to determine the feasibility of transferring non-genic microsatellite (SSR) markers and gene-based markers, including intron fragment length polymorphism (IFLP) and resistance gene candidates (RGC)-based markers from sunflower (Helianthus annuus L.) to safflower, both species belonging to the Asteraceae family. Cross-species amplification of 119 non-genic SSRs, 48 IFLPs, and 19 RGC-based sunflower markers in 22 lines and germplasm accessions of safflower was evaluated. Additionally, 69 EST-SSR markers previously reported to amplify in safflower were tested. The results showed that 17.6% of the non-genic SSR, 56.2% of the IFLP, and 73.7% of the RGC-based markers were transferable to safflower. The percentage of transferable markers showing polymorphic loci was 66.6% for non-genic SSR, 70.6% for EST-SSR, 55.5% for IFLP, and 71.4% for RGC-based markers. The highest polymorphism levels were found for non-genic SSR. The average number of alleles per polymorphic locus and mean heterozygosity values were 2.9 and 0.46, respectively, for non-genic SSR, 2.2 and 0.35 for EST-SSR, 2.1 and 0.24 for IFLP, and 2.0 and 0.34 for RGC-based markers. The results of this study revealed a low rate of transferability for non-genic SSR sunflower markers and a better rate of transferability for IFLP and RGC-based markers. Transferable genic and non-genic sunflower markers can have utility for trait and comparative mapping studies in safflower. © 2010 Springer Science+Business Media B.V.
URIhttp://hdl.handle.net/10261/92868
DOIhttp://dx.doi.org/10.1007/s10681-010-0139-6
Identifiersdoi: 10.1007/s10681-010-0139-6
issn: 0014-2336
e-issn: 1573-5060
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