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Identification and Characterization of EST-SSRs in Finger Millet ($Eleusine$ $coracana$ (L.) Gaertn.)
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  • Identification and Characterization of EST-SSRs in Finger Millet ($Eleusine$ $coracana$ (L.) Gaertn.)
저자명
Naga. Bheema Lingeswara Reddy Inja,Mangamoori. Lakshmi Narasu,Subramanyam. Sivaramakrishnan
간행물명
Journal of crop science and biotechnology
권/호정보
2012년|15권 1호|pp.9-16 (8 pages)
발행정보
한국작물학회
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이 논문은 한국과학기술정보연구원과 논문 연계를 통해 무료로 제공되는 원문입니다.
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기타언어초록

In recent years, microsatellites have become the most used markers for studying population genetic diversity. The increased availability of the DNA sequences has given the possibility to develop EST-derived SSR markers. A total of 1,927 ESTs of $Eleusine$ $coracana$ available in the NCBI database were mined for SSRs. Di-nucleotides are the most occurring motifs accounting for more than 50% of the repeats, of which GA was the most abundant motif and tetra-nucleotides are the least occurring motifs. Of the 132 markers identified, 30 primer pairs based were synthesized. SSR markers were used for variety discrimination and genetic assessment in 15 finger millet accessions; 20 primers showed polymorphism and 13 primers were identified as having a PIC value above 0.5. On the basis of the distribution of these polymorphic alleles, the 15 accessions were classified into two groups. This study has demonstrated the potential of EST-derived SSR primer pairs in finger millet. These primers will serve as valuable source for further breeding programs.