Marker detection and genetic analysis for rust resistance of recombinant and backcross inbred lines in groundnut (Arachis hypogaea L.)

    Shridevi, J A and Nadaf, H L and Gowda, M V C and Bhat, R S and Patil, R K and Motagi, B N and Kenchanagowda, P and Mukri, G and Archana, B and Gangashetty, P I and Gangadhar, K and Jaggal, L (2014) Marker detection and genetic analysis for rust resistance of recombinant and backcross inbred lines in groundnut (Arachis hypogaea L.). Indian Journal of Genetics and Plant Breeding (The), 74 (2). pp. 213-221. ISSN 0975-6906

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    Abstract

    The present work was conducted to study the genetic variation and identification of microsatellite markers linked to rust resistance in groundnut. An F6 mapping population and three backcross populations (BC1F4, BC2F3 and BC3F2) were developed from a cross between the susceptible parent GPBD-5 and resistant parent GPBD-4. There were highly significant differences among recombinants for reaction to rust. A little difference was observed between PCV and GCV for reaction to rust. High heritability coupled with high genetic advance as per cent of mean was observed for reaction to rust in F6, and backcross populations. Bulk segregant analysis in the segregating population of GPBD-5 x GPBD-4 indicated TC5A06 to be putatively linked to rust resistance i.e., single marker analysis (SMA). This marker can be used in marker assisted selection for rust resistance in groundnut improvement program.

    Item Type: Article
    Divisions: RP-Grain Legumes
    CRP: CGIAR Research Program on Grain Legumes
    Uncontrolled Keywords: Groundnut; Rust resistance, Genetic variation, Bulk segregant analysis, SSR markers
    Subjects: Mandate crops > Groundnut
    Depositing User: Mr Ramesh K
    Date Deposited: 06 Jul 2015 10:05
    Last Modified: 07 Sep 2017 06:11
    URI: http://oar.icrisat.org/id/eprint/8839
    Official URL: http://dx.doi.org/10.5958/0975-6906.2014.00158.8
    Projects: UNSPECIFIED
    Funders: UNSPECIFIED
    Acknowledgement: UNSPECIFIED
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