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Genetic introgression from wild species into cultivated groundnut

  • Author:P.VINDHIYA VARMAN

    p-ISSN:0024-9602, e-ISSN:2582-5321, Vol:87, Issue:apr-jun

    DOI: https://doi.org/10.29321/MAJ.10.A00459
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Abstract

                                The cultivated groundnut (Arachis hypoguca L.) suffers from many diseases and pests. The wild relatives of groundnut have been found to he number of diseases. The diploid (2n = 20) wild sp.A.cardenasii was hybridized with the CV. VRI 2 of A. hypogaea (2n-40) and the resultant triploids (2n = 30) were studied. The progenies of the triploid gave rise to triploid, tetraploid and hexaploid (2n = 60) progenies. The tetraploid progenies were again hybridized with the cultivated groundnut and the resultant F, plants were studied. The hybrids exhibited high level of resistance to rust and leafspot diseases which indicated the transfer of genes esferring resistance from A. Cardenasii

Key words : Groundnut A.cardenasii, Triploid, Tetraploid, Hexaploid, Foliar diseases, Resistance

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ISSN : 0024-9602
eISSN : 2582-5321

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