Development of a dense genetic map and QTL analysis for pod borer Helicoverpa armigera (Hübner) resistance component traits in chickpea ( Cicer arietinum L .)

    Barmukh, R and Roorkiwal, M and Jaba, J and Chitikineni, A and Mishra, S P and Sagurthi, S R and Munghate, R and Sharma, H C and Varshney, R K (2020) Development of a dense genetic map and QTL analysis for pod borer Helicoverpa armigera (Hübner) resistance component traits in chickpea ( Cicer arietinum L .). The Plant Genome (TSI). pp. 1-15. ISSN 1940-3372

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    Abstract

    Genetic enhancement for resistance against the pod borer, Helicoverpa armigera is crucial for enhancing production and productivity of chickpea. Here we provide some novel insights into the genetic architecture of natural variation in H. armigera resistance in chickpea, an important legume, which plays a major role in food and nutritional security. An interspecific recombinant inbred line (RIL) population developed from a cross between H. armigera susceptible accession ICC 4958 (Cicer arietinum) and resistant accession PI 489777 (Cicer reticulatum) was evaluated for H. armigera resistance component traits using detached leaf assay and under field conditions. A high-throughput AxiomCicerSNP array was utilized to construct a dense linkage map comprising of 3,873 loci and spanning a distance of 949.27 cM. Comprehensive analyses of extensive genotyping and phenotyping data identified nine main-effect QTLs and 955 epistatic QTLs explaining up to 42.49% and 38.05% phenotypic variance, respectively, for H. armigera resistance component traits. The main-effect QTLs identified in this RIL population were linked with previously described genes, known to modulate resistance against lepidopteran insects in crop plants. One QTL cluster harbouring main-effect QTLs for three H. armigera resistance component traits and explaining up to 42.49% of the phenotypic variance, was identified on CaLG03. This genomic region, after validation, may be useful to improve H. armigera resistance component traits in elite chickpea cultivars.

    Item Type: Article
    Divisions: Research Program : Asia
    Research Program : Genetic Gains
    CRP: CGIAR Research Program on Grain Legumes and Dryland Cereals (GLDC)
    Uncontrolled Keywords: Chickpea, Pod borer
    Subjects: Others > Pest Management
    Others > Integrated Crop Management (ICM)
    Mandate crops > Chickpea
    Depositing User: Mr Arun S
    Date Deposited: 17 Dec 2020 17:24
    Last Modified: 17 Dec 2020 17:24
    URI: http://oar.icrisat.org/id/eprint/11666
    Official URL: https://doi.org/10.1002/tpg2.20071
    Projects: UNSPECIFIED
    Funders: UNSPECIFIED
    Acknowledgement: Authors are thankful to Department of Agriculture and Cooperation & Farmers Welfare (DoACFW), Ministry of Agriculture and Farmers Welfare, Government of India, Department of Biotechnology (DBT), Government of India through Indo-Australian Biotechnology Fund (IABF), and the Tropical Legumes Project funded by Bill&Melinda Gates Foundation for financial assistance. R.B. acknowledges the funding support fromthe Council of Scientific and Industrial Research (CSIR), Government of India for the award of the research fellowship. M.R. and R.K.V. thank the Department of Science and Technology, Government of India for providing funding support through the INSPIRE Faculty Scheme and Early Career Research Award – SERB and the JC Bose Fellowship, respectively. Authors are thankful to Dr. Pooran M. Gaur for providing seeds of the mapping population. The work reported in this article was undertaken as a part of CGIAR Research Program on Grain Legumes and Dryland Cereals (GLDC). ICRISAT is a member of the CGIAR Consortium.
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