Construction of a Molecular Linkage Map of Pearl Millet Using SSR Markers

Saritha, A and Srivastava, R K and Reddy, N and Katiyar, P and Dangi, K S (2017) Construction of a Molecular Linkage Map of Pearl Millet Using SSR Markers. International Journal of Pure & Applied Bioscience, 5 (5). pp. 1632-1640. ISSN 2320 – 7051

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For pearl millet production in the semi-arid tropics, Sclerospora graminicola is a major biotic constraint causes Downy mildew. The pathogen is heterothallic and frequent recombination leads to evolution of new virulent populations. Identification of resistance to new virulent isolates is a prerequisite for resistance breeding. A very good understanding of ability to manipulate oligogenic and quantitative traits is offered to plant breeders by recent advances in genetic marker technology. In the present investigation, Genotypic data generated for a total of 39 marker loci (SSRs) were used to construct a linkage map of the pearl millet mapping population of 295 Recombinant Inbred Population based on the cross 81B-P13 × AIMP 92901-deriv-P03.A skeleton linkage map of seven linkage groups with a total map length of 536.8cMwasconstructed using Map Maker/Exp version 3.0b at LOD threshold value of 3.0 and map was drawn using Map Chart 2.2. Among all the linkage groups of the present study, linkage group1 has the highest map length (146.6 cM) followed by linkage group 2 (98.3 cM). The linkage group 3 (6.6 cM) has been recorded as the shortest among all seven linkage pearl millet groups in this study.

Item Type: Article
Divisions: Research Program : Genetic Gains
Uncontrolled Keywords: SSR Markers, Linkage group, Population, Genotypic, Molecular Linkage Map, Pearl Millet
Subjects: Mandate crops > Millets > Pearl Millet
Others > Genetics and Genomics
Depositing User: Mr Ramesh K
Date Deposited: 03 Mar 2018 11:21
Last Modified: 03 Mar 2018 11:21
Official URL:
Acknowledgement: I thank Acharya N.G. Ranga Agricultural University (ANGRAU) for financial help in the form of stipend during the course of work.
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